CN105388584A - Lens drive device - Google Patents
Lens drive device Download PDFInfo
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- CN105388584A CN105388584A CN201510552250.0A CN201510552250A CN105388584A CN 105388584 A CN105388584 A CN 105388584A CN 201510552250 A CN201510552250 A CN 201510552250A CN 105388584 A CN105388584 A CN 105388584A
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- 230000033001 locomotion Effects 0.000 claims description 17
- 241001014698 Phacoides Species 0.000 claims description 15
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- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The subject of the invention is to provide a lens drive device which can deal with high-speed orientation of automatic focusing. The lens drive device (100) comprises a box body (40); a barrel-shaped lens maintaining part (2) accommodated in the box body and able to hold a lens body LE; a force application part (60) supporting the lens maintaining part in a mode that the lens maintaining part can move along an optical axis direction; a drive mechanism (70) set to enable the lens maintaining part to move in an optical axis direction and composed of a magnet used for driving and a coil; a position detection mechanism (80) detecting the position of the lens maintaining part in the optical axis direction; and a plate-shaped part (9). The position detection mechanism is composed of a magnet used for detection and a magnetism detection part arranged opposite to the magnet used for the detection. The magnet used for the detection is fixed on the lens maintaining part. A magnetism detection part is arranged on the plate-shaped part (9) and is provided with a plurality of conducting parts in conduction with the magnetism detection part. The plate-shaped part is arranged in an upright position on a side of the lens maintaining part.
Description
Technical field
The present invention relates to lens driver, particularly relate to the lens driver of answering right automatic focusing.
Background technology
In the portable equipment of function possessing the static picture of shooting or animation, in order to drive the lens of photography, possesses the lens driver employing voice-coil motor.As such lens driver, the lens driver described in following patent documentation 1 is widely known by the people.
Below, use Figure 27, the lens driver described in patent documentation 1 is illustrated.Figure 27 is for representing the exploded perspective view of the formation of the lens driver 900 described in patent documentation 1.
Lens driver 900 described in patent documentation 1 has: yoke 908, has outside wall portions 908g, multiple inner wall part 908b and linking part 908h; Lens holder 903, is disposed in the inner side of yoke 908, and can keep phacoid; Coil 904, is wound in lens holder 903; Magnet 905, opposed with inner wall part 908b across coil 904; Elastomeric element 911, support of lens holder 903.In addition, coil 904 is configured to block the magnetic field that magnet 905 produces.If electric current flows through the coil 904 configured like this, then produce induction electromotive force at coil 904, the lens holder 903 being wound with coil 904 moves to the optical axis direction of phacoid.Scioptics holder 903 moves to the optical axis direction of phacoid like this, can focus to the image that will take.
Prior art document
Patent documentation
Patent documentation 1 utility model logs in No. 3179634 publication
Invent problem to be solved
In addition, now, the portable equipment possessing the camera function realized by automatic focusing is also increased.In addition, for automatic focusing, it is desirable to focus quickly.That is, in lens driver, the lens driver can tackling the high speed of automatic focusing enjoys expectation.
But the lens driver 900 described in patent documentation 1 does not control the particular location of lens holder 903, therefore, the time to the position of phacoid (lens holder 903) is determined is long, is difficult to the high speed of reply automatic focusing.
Summary of the invention
The present invention is for solving above-mentioned problem, and it provides a kind of lens driver can tackling the high speed of automatic focusing.
For solving the method for problem
Lens driver of the present invention, is characterized in that, possesses: casing, the lens holder of tubular, is housed inside above-mentioned casing, and can keep phacoid, force application part, can support said lens holding member along the mode of optical axis direction movement with lens holder, and driving mechanism, said lens holding member is moved along optical axis direction, be configured to that at least there is driving magnet and coil, said lens drive unit has position detecting mechanism, the position of the optical axis direction of said lens holding member is detected, above-mentioned position detecting mechanism is configured to have the detection magnet and the Magnetic testi parts opposite disposed with this detection magnet that are fixed on said lens holding member, plate-shaped member is disposed of and erects in the side of said lens holding member (Japanese original text: Li Let), this plate-shaped member be provided with above-mentioned Magnetic testi parts and be provided with the multiple conductive components with this Magnetic testi parts conducting.
Thus, by arranging the position detecting mechanism detected the position of the optical axis direction of lens holder, can the position of correcting lens holding member while make lens holder move to the assigned position of the focal position of image etc.Thereby, it is possible to shorten the time till the position of lens holder is determined.In addition, Magnetic testi parts can configure by plate-shaped member is easily opposed with detection magnet, and plate-shaped member is equipped on the side of lens holder, therefore, as compared to the situation of lower side Magnetic testi parts and plate-shaped member being configured at lens holder, the height dimension (size of optical axis direction) of lens driver can be suppressed to become large.
In addition, the feature of lens driver of the present invention is, above-mentioned casing has: housing, has sidewall portion; And substrate parts, integrated with this housing, above-mentioned conductive component is made up of the metal parts being embedded in above-mentioned plate-shaped member, and a part is exposed from above-mentioned plate-shaped member and forms outside terminal.
Thus, conductive component is made up of the metal parts being embedded in plate-shaped member, and a part is exposed from plate-shaped member and forms outside terminal, therefore, easily the Wiring pattern of Magnetic testi parts with the substrate being provided with lens driver etc. can be electrically connected via outside terminal, and without the need to using connector or lead-in wire etc.
In addition, the feature of lens driver of the present invention is, be provided with for the multiple power supply terminals to above-mentioned coil electricity at above-mentioned substrate parts, said external terminal and above-mentioned power supply terminal form a line.
Thus, because outside terminal and power supply terminal form a line, therefore, the layout being provided with the Wiring pattern of the installation base plate of lens driver etc. becomes easy.
In addition, the feature of lens driver of the present invention is, above-mentioned housing is formed by sheet metal, and is provided with for the earthy terminal by above-mentioned frame ground at above-mentioned substrate parts, and said external terminal, above-mentioned power supply terminal and above-mentioned earthy terminal form a line.
Thus, the layout being provided with the Wiring pattern of the installation base plate of lens driver etc. becomes easy.
In addition, the feature of lens driver of the present invention is, be formed with the notch part that can configure above-mentioned plate-shaped member with the state making above-mentioned plate-shaped member erect at the side end of above-mentioned substrate parts, have above-mentioned power supply terminal at the partial configuration not being provided with above-mentioned notch part of above-mentioned side end.
Thereby, it is possible to easily outside terminal and power supply terminal are formed a line.
In addition, the feature of lens driver of the present invention is, is fixed with above-mentioned Magnetic testi parts in the one side side of above-mentioned plate-shaped member, and the another side of above-mentioned plate-shaped member is fixed on the inner face in the sidewall portion of above-mentioned housing by cementing agent.
Thereby, it is possible to bond with large area, so, reliably can keep plate-shaped member with the state erected.
In addition, the feature of lens driver of the present invention is, be provided with in the another side side of above-mentioned plate-shaped member the holding section being formed channel-shaped, and be formed with outstanding teat in the above-mentioned sidewall portion of above-mentioned housing downwards, above-mentioned teat engages with above-mentioned holding section.
Thereby, it is possible to the simple formation being inserted into holding section with teat is to carry out the location of housing.
Invention effect
According to the present invention, the lens driver of the high speed can tackling automatic focusing can be provided.
Accompanying drawing explanation
Fig. 1 (a) ~ Fig. 1 (b) is the figure of the outward appearance of the lens driver 100 of expression the 1st embodiment, Fig. 1 (a) is for representing the stereographic map of the outward appearance of lens driver 100, and Fig. 1 (b) is for representing the vertical view from the lens driver 100 state of side, the Z1 direction observation described in Fig. 1 (a).
Fig. 2 is the exploded perspective view of the formation of the lens driver 100 of expression the 1st embodiment.
Fig. 3 (a) ~ Fig. 3 (b) is the figure of the fixation side parts 50 of expression the 1st embodiment, Fig. 3 (a) is for representing the exploded perspective view of the formation of fixation side parts 50, and Fig. 3 (b) is the stereographic map of the outward appearance representing fixation side parts 50.
Fig. 4 (a) ~ Fig. 4 (b) is the figure of the distance piece 13 of expression the 1st embodiment, Fig. 4 (a) is for representing the stereographic map of the outward appearance of distance piece 13, and Fig. 4 (b) is for representing the stereographic map from the distance piece 13 state of side, the Z2 direction observation described in Fig. 4 (a).
Fig. 5 (a) ~ Fig. 5 (b) is the figure of the housing 1 of expression the 1st embodiment, Fig. 5 (a) is for representing the stereographic map of the outward appearance of housing 1, and Fig. 5 (b) is for representing the stereographic map from the housing 1 state of side, the Z2 direction observation described in Fig. 5 (a).
Fig. 6 (a) ~ Fig. 6 (b) is the figure of the substrate parts 8 of expression the 1st embodiment, Fig. 6 (a) is for representing the stereographic map of the outward appearance of substrate parts 8, and Fig. 6 (b) is for representing the vertical view from the substrate parts 8 state of side, the Z1 direction observation described in Fig. 6 (a).
Fig. 7 (a) ~ Fig. 7 (b) represents the figure being embedded in the metal parts 8m of the substrate parts 8 of the 1st embodiment, Fig. 7 (a) is for representing the stereographic map of the outward appearance of metal parts 8m, and Fig. 7 (b) is for representing the vertical view from the metal parts 8m the state of side, the Z1 direction observation described in Fig. 7 (a).
Fig. 8 (a) ~ Fig. 8 (b) is the figure of the plate-shaped member 9 of expression the 1st embodiment, Fig. 8 (a) is for representing the stereographic map of the outward appearance of plate-shaped member 9, and Fig. 8 (b) is for representing the stereographic map from the plate-shaped member the state of side, the Y1 direction observation described in Fig. 8 (a).
Fig. 9 is the stereographic map of the outward appearance of the coil 4 of expression the 1st embodiment.
Figure 10 (a) ~ Figure 10 (b) is the figure of the lens holder 2 of expression the 1st embodiment, Figure 10 (a) is for representing the stereographic map of the outward appearance of lens holder 2, and Figure 10 (b) is for representing the side view from the lens holder 2 state of side, the X2 direction observation described in Figure 10 (a).
Figure 11 (a) ~ Figure 11 (b) is the figure of the lens holder 2 of expression the 1st embodiment, Figure 11 (a) is for representing the vertical view from the lens holder 2 state of side, the Z1 direction observation described in Figure 10 (a), and Figure 11 (b) is for representing the vertical view from the lens holder 2 state of side, the Z2 direction observation described in Figure 10 (a).
The figure of the lens holder 2 that the coil 4 that Figure 12 (a) ~ Figure 12 (b) is expression the 1st embodiment, detection magnet 5, evener 7 are integrally formed, Figure 12 (a) is for representing the stereographic map of the lens holder 2 that coil 4, detection magnet 5, evener 7 are integrally formed, and Figure 12 (b) is for representing the vertical view of the lens holder 2 be integrally formed from the coil 4 state of side, the Z1 direction observation described in Figure 12 (a), detection magnet 5, evener 7.
The amplification stereogram that Figure 13 represents for the state amplification observing the A portion described in Figure 12 (a) from side, Z2 direction.
Figure 14 is the stereographic map of the outward appearance of the force application part 60 of expression the 1st embodiment.
Figure 15 (a) ~ Figure 15 (b) is the figure of the upside leaf spring 10 of expression the 1st embodiment, Figure 15 (a) is for representing the stereographic map of the outward appearance of upside leaf spring 10, and Figure 15 (b) is for representing the vertical view from the upside leaf spring 10 state of side, the Z1 direction observation described in Figure 15 (a).
Figure 16 (a) ~ Figure 16 (b) is the figure of the downside leaf spring 11 of expression the 1st embodiment, Figure 16 (a) is for representing the stereographic map of the outward appearance of downside leaf spring 11, and Figure 16 (b) is for representing the vertical view from the downside leaf spring 11 state of side, the Z1 direction observation described in Figure 16 (a).
Figure 17 (a) ~ Figure 17 (c) is the figure representing the fixing means illustrated to the housing 1 fixed upper leaf spring 10 of the 1st embodiment and distance piece 13, Figure 17 (a) is for representing the exploded perspective view of housing 1, upside leaf spring 10, distance piece 13, Figure 17 (b) is for representing that upside leaf spring 10 and distance piece 13 are fixed in the stereographic map of the state of housing 1, and Figure 17 (c) will be for amplifying from the state in observation B portion, side, the direction of Z2 described in Figure 17 (b) enlarged drawing represented.
Figure 18 (a) ~ Figure 18 (c) is the figure of the fixing means illustrated to the housing 1 fixed drive magnet 3 of the 1st embodiment and plate-shaped member 9, Figure 18 (a) is for representing the exploded perspective view of housing 1, driving magnet 3, plate-shaped member 9, Figure 18 (b) is for representing that driving magnet 3 and plate-shaped member 9 are fixed on the stereographic map of the state of housing 1, and Figure 18 (c) is the stereographic map of the confined state representing Magnetic testi parts 6.
Figure 19 (a) ~ Figure 19 (b) is the figure of the fixing means of the lens holder 2 fixing downside leaf spring 11 illustrated to the 1st embodiment, Figure 19 (a) is for representing the exploded perspective view of lens holder 2 and downside leaf spring 11, and Figure 19 (b) represents the stereographic map being fixed with the state of downside leaf spring 11 at lens holder 2.
Figure 20 (a) ~ Figure 20 (b) is for amplifying the enlarged drawing represented by the C portion described in Figure 19 (b), Figure 20 (a) is for representing the amplification plan view in the C portion under the state that the side, Z2 direction recorded from Figure 19 is observed, and Figure 20 (b) is for representing the enlarged side view from the C portion the state of side, the X2 direction observation described in Figure 19.
Figure 21 (a) ~ Figure 21 (b) illustrates the figure to the fixing means of the substrate parts 8 fixed lens holding member 2 of the 1st embodiment, Figure 21 (a) is for representing the exploded perspective view of lens holder 2 and substrate parts 8, and Figure 21 (b) represents that lens holder 2 is fixed on the stereographic map of the state of substrate parts 8 via downside leaf spring 11.
Figure 22 (a) ~ Figure 22 (c) is the figure representing the lens holder 2 and substrate parts 8 be integrally formed via the downside leaf spring 11 of the 1st embodiment, Figure 22 (a) is for representing the vertical view from the lens holder 2 be integrally formed the state of side, the Z1 direction observation described in Figure 21 and substrate parts 8, Figure 22 (b) is for representing the side view from the lens holder 2 be integrally formed the state of side, the Y1 direction observation described in Figure 21 and substrate parts 8, and the enlarged drawing represented is amplified by Figure 22 (c) in the D portion described in Figure 22 (a).
Figure 23 (a) ~ Figure 23 (b) illustrates the figure to the fixing means of the housing 1 anchoring base parts 8 of the 1st embodiment, Figure 23 (a) is for representing the exploded perspective view of housing 1 and substrate parts 8, and Figure 23 (b) is the stereographic map of the outward appearance representing lens driver 100.
Figure 24 (a) ~ Figure 24 (b) forms to the configuration of bolster 12 figure be illustrated, Figure 24 (a) is for representing the vertical view from the lens driver 100 state of side, the Z1 direction observation described in Figure 23 (b), and the enlarged drawing represented is amplified by Figure 24 (b) in the E portion described in Figure 24 (a).
Figure 25 (a) ~ Figure 25 (b) is the in-built schematic diagram of the lens driver 100 of expression the 1st embodiment, Figure 25 (a) is for representing the in-built intention from the lens driver 100 state of side, the Z1 direction observation described in Figure 23 (b), and Figure 25 (b) is for representing the in-built schematic diagram from the lens driver 100 state of side, the X2 direction observation described in Figure 23 (b).In addition, in Figure 25 (a) ~ Figure 25 (b), for ease of illustrating, do not record the constituent parts of the upside part such as leaf spring 10 and distance piece 13.
The figure of the variation that the configuration that Figure 26 (a) ~ Figure 26 (b) is the bolster 12 of expression the 1st embodiment is formed, Figure 26 (a) is only provided with the schematic diagram of the variation of bolster 12 between linking part 60f and fixation side parts 50 for representing, Figure 26 (b) represents the schematic diagram being only provided with the variation of bolster 12 between linking part 60f and part 1 60b.In addition, in Figure 26 (a) ~ Figure 26 (b), for ease of illustrating, do not record some constituent parts.In addition, the upside leaf spring 10 described in Figure 26 (b) constructs different from the upside leaf spring 10 of the 1st embodiment, but uses identical toponymy and symbol.
Figure 27 is for representing the exploded perspective view of the formation of the lens driver 900 described in patent documentation 1.
In figure:
1 housing
1a bight
1b sidewall portion
1c teat
1d peristome
1e top part
2 lens holder
2a cylindrical portion
Leaf spring configuration section on the upside of 2b
Flange part on the downside of 2c
2d upper flange portion
2e teat
2f magnet maintaining part
2g evener maintaining part
2h coil maintaining part
Leaf spring maintaining part on the downside of 2k
On the downside of 2m, leaf spring keeps projection
2n coil winding part
3 driving magnet
4 coils
4a winder
4b end
5 detection magnet
6 Magnetic testi parts
6a detection faces
6b portion of terminal
7 eveners
8 substrate parts
8a powers and uses terminal
The earthy terminal of 8b
8c side end
8d notch part
8e pedestal portion
Leaf spring configuration section on the downside of 8f
Leaf spring fixed projection on the downside of 8g
8h limiting wall
8k limits recess
8m metal parts
8n the 1st metal parts
8p the 2nd metal parts
8q fixed head
8r the 1st power supply terminal
8s the 1st connecting portion
8t the 2nd power supply terminal
8v the 2nd connecting portion
9 plate-shaped members
9a outside terminal
9b conductive component
9c holding section
9d base part
9e end difference
Leaf spring on the upside of in the of 10
Part 1 on the upside of 10a
Part 2 on the upside of 10b
Elastic arm on the upside of 10c
1st arm on the upside of 10d
1st bend on the upside of 10e
2nd arm on the upside of 10f
2nd bend on the upside of 10g
3rd arm on the upside of 10h
Extension on the upside of 10k
Linking part on the upside of 10m
Wide width part on the upside of 10n
Through hole on the upside of 10p
Leaf spring on the downside of in the of 11
Leaf spring on the downside of 11a the 1st
Leaf spring on the downside of 11b the 2nd
Part 1 on the downside of 11c
Installation portion on the downside of 11d
Fixed orifice on the downside of 11e the 1st
Part 2 on the downside of 11f
Fixed orifice on the downside of 11g the 2nd
11h weld part
Elastic arm on the downside of 11k
1st arm on the downside of 11m
1st bend on the downside of 11n
2nd arm on the downside of 11p
2nd bend on the downside of 11q
3rd arm on the downside of 11r
Linking part on the downside of 11s
12 bolsters
13 distance pieces
13a locator protrusions
40 casings
50 fixation side parts
60 force application parts
The leaf spring of 60a mono-side
60b part 1
60c part 2
60d elastic arm
60e extension
60f linking part
60g bend
60h wide width part
60k through hole
70 driving mechanisms
80 position detecting mechanisms
100 lens drivers
DR1 optical axis direction
LE phacoid
LS optical axis
SO scolding tin
WE welds
Embodiment
[the 1st embodiment]
Below, the lens driver 100 of the 1st embodiment is illustrated.
First, Fig. 1 (a) ~ formation of Fig. 1 (b) to Figure 16 to the lens driver 100 of the 1st embodiment is used to be illustrated.Fig. 1 (a) ~ Fig. 1 (b) is the figure of the outward appearance of the lens driver 100 of expression the 1st embodiment, Fig. 1 (a) is for representing the stereographic map of the outward appearance of lens driver 100, and Fig. 1 (b) is for representing the vertical view from the lens driver 100 state of side, the Z1 direction observation described in Fig. 1 (a).Fig. 2 is the exploded perspective view of the formation of the lens driver 100 of expression the 1st embodiment.Fig. 3 (a) ~ Fig. 3 (b) is the figure of the fixation side parts 50 of expression the 1st embodiment, Fig. 3 (a) is for representing the exploded perspective view of the formation of fixation side parts 50, and Fig. 3 (b) is the stereographic map of the outward appearance representing fixation side parts 50.Fig. 4 (a) ~ Fig. 4 (b) is the figure of the distance piece 13 of expression the 1st embodiment, Fig. 4 (a) is for representing the stereographic map of the outward appearance of distance piece 13, and Fig. 4 (b) is for representing the stereographic map from the distance piece 13 state of side, the Z2 direction observation described in Fig. 4 (a).Fig. 5 (a) ~ Fig. 5 (b) is the figure of the housing 1 of expression the 1st embodiment, Fig. 5 (a) is for representing the stereographic map of the outward appearance of housing 1, and Fig. 5 (b) is for representing the stereographic map from the housing 1 state of side, the Z2 direction observation described in Fig. 5 (a).Fig. 6 (a) ~ Fig. 6 (b) is the figure of the substrate parts 8 of expression the 1st embodiment, Fig. 6 (a) is for representing the stereographic map of the outward appearance of substrate parts 8, and Fig. 6 (b) is for representing the vertical view from the substrate parts 8 state of side, the Z1 direction observation described in Fig. 6 (a).Fig. 7 (a) ~ Fig. 7 (b) represents the figure being embedded in the metal parts 8m of the substrate parts 8 of the 1st embodiment, Fig. 7 (a) is for representing the stereographic map of the outward appearance of metal parts 8m, and Fig. 7 (b) is for representing the vertical view from the metal parts 8m the state of side, the Z1 direction observation described in Fig. 7 (a).Fig. 8 (a) ~ Fig. 8 (b) is the figure of the plate-shaped member 9 of expression the 1st embodiment, Fig. 8 (a) is for representing the stereographic map of the outward appearance of plate-shaped member 9, and Fig. 8 (b) is for representing the stereographic map from the plate-shaped member 9 state of side, the Y1 direction observation described in Fig. 8 (a).Fig. 9 is the stereographic map of the outward appearance of the coil 4 of expression the 1st embodiment.Figure 10 (a) ~ Figure 10 (b) is the figure of the lens holder 2 of expression the 1st embodiment, Figure 10 (a) is for representing the stereographic map of the outward appearance of lens holder 2, and Figure 10 (b) is for representing the side view from the lens holder 2 state of side, the X2 direction observation described in Figure 10 (a).Figure 11 (a) ~ Figure 11 (b) is the figure of the lens holder 2 of expression the 1st embodiment, Figure 11 (a) is for representing the vertical view from the lens holder 2 state of side, the Z1 direction observation described in Figure 10 (a), and Figure 11 (b) is for representing the vertical view from the lens holder 2 state of side, the Z2 direction observation described in Figure 10 (a).The figure of the lens holder 2 that the coil 4 that Figure 12 (a) ~ Figure 12 (b) is expression the 1st embodiment, detection magnet 5, evener 7 are integrally formed, the stereographic map of the lens holder 2 that Figure 12 (a) is integrally formed for expression coil 4, detection magnet 5, evener 7, the vertical view of the lens holder 2 that Figure 12 (b) is integrally formed for the coil 4 under the state from side, the Z1 direction observation described in Figure 12 (a), detection magnet 5, evener 7.The amplification stereogram that Figure 13 represents for the state amplification observing the A portion described in Figure 12 (a) from side, Z2 direction.Figure 14 is the stereographic map of the outward appearance of the force application part 60 of expression the 1st embodiment.Figure 15 (a) ~ Figure 15 (b) is the figure of the upside leaf spring 10 of expression the 1st embodiment, Figure 15 (a) is for representing the stereographic map of the outward appearance of upside leaf spring 10, and Figure 15 (b) is for representing the vertical view from the upside leaf spring 10 state of side, the Z1 direction observation described in Figure 15 (a).Figure 16 (a) ~ Figure 16 (b) is the figure of the downside leaf spring 11 of expression the 1st embodiment, Figure 16 (a) is for representing the stereographic map of the outward appearance of downside leaf spring 11, and Figure 16 (b) is for representing the vertical view from the downside leaf spring 11 state of side, the Z1 direction observation described in Figure 16 (a).
As shown in Fig. 1 (a) ~ Fig. 1 (b), the lens driver 100 of the 1st embodiment is formed to have the cubic in the through hole of above-below direction (Z1-Z2 direction), as shown in Figure 2, have: fixation side parts 50, lens holder 2, force application part 60, driving mechanism 70, position detecting mechanism 80 and bolster 12.In addition, fixation side parts 50 are consisted of the casing 40 that is made up of housing 1 and substrate parts 8 and distance piece 13.In addition, force application part 60 is made up of upside leaf spring 10 and downside leaf spring 11, and driving mechanism 70 is configured to have driving magnet 3 and coil 4, and position detecting mechanism 80 is configured to have detection magnet 5 and Magnetic testi parts 6.
As shown in Figure 3, fixation side parts 50 are made up of housing 1, substrate parts 8 and distance piece 13.Casing 40 is formed by housing 1 and substrate parts 8, therefore, can say that fixation side parts 50 are configured to comprise casing 40.
Distance piece 13 is made up of synthetic resin material, as shown in Figure 4, from top (side, Z1 direction) top view, is formed as rectangular ring-type.Distance piece 13 is formed with locator protrusions 13a below the diagonal position (side, Ce QieY1 direction, Ce HeX2 direction, Ce QieY2 direction, X1 direction) of a pair, and this locator protrusions 13a is formed to give prominence to downwards.Locator protrusions 13a is formed as cylindric highlightedly, and respectively establishes 2 at the diagonal position of a pair respectively.
Housing 1 is formed by the sheet metal be made up of nonmagnetic metal material, as shown in Figure 5, is formed hollow and the cubic of below (side, Z2 direction) opening.Housing 1 has 4 sidewall portion 1b erected along the vertical direction respectively in the position being equivalent to cubical side, be connected between adjacent side wall part 1b by bight 1a.In addition, be formed with at 1 (being configured at side, Y2 direction) sidewall portion 1b the teat 1c given prominence to from bottom downwards, teat 1c is configured in the position near side (side, X2 direction).In addition, housing 1 has the top of covering shell 1 and the top part 1e be integrally formed with bight 1a and sidewall portion 1b.In addition, housing 1 has the peristome 1d of circular open at the central portion of top part 1e.In addition, optical axis L S is orthogonal with top part 1e, and the center of the circle formed by peristome 1d.The housing 1 of formation like this has the size that distance piece 13 can be configured at the inside of hollow.
As shown in Fig. 6 (a) ~ Fig. 6 (b), substrate parts 8 is made up of synthetic resin material, possess pedestal portion 8e, this pedestal portion 8e is formed from top (side, Z1 direction) top view, and profile is rectangle and has the tabular of circular open in inner side.8e superincumbent four bights in pedestal portion have gives prominence to and the downside leaf spring configuration section 8f of the smooth formation in the face of top upward, on the leaf spring configuration section 8f of downside, is respectively equipped with 1 and gives prominence to upward and form columned downside leaf spring fixed projection 8g.In addition, at the side end 8c of the side (side of side, Y2 direction) as substrate parts 8, notch part 8d is formed with in side (side, X2 direction) with concavity.In addition, substrate parts 8 is formed with the limiting wall 8h given prominence to upward in wall-like be connected between the leaf spring configuration section 8f of downside on side end 8c opposite side, and the central portion in the extended direction (X1-X2 direction) of limiting wall 8h is formed with restriction recess 8k in the mode of blocking limiting wall 8h.In addition, limit recess 8k to be formed to be recessed to the position arrived above pedestal portion 8e.In addition, be embedded with the metal parts 8m as shown in Fig. 7 (a) ~ Fig. 7 (b) in the inside of pedestal portion 8e, its part is exposed from pedestal portion 8e or is given prominence to.Metal parts 8m is made up of the 1st metal parts 8n and the 2nd metal parts 8p and fixed head 8q, 1st metal parts 8n and the 2nd metal parts 8p is made up of sheet metal, form arc-shaped respectively, and configure along the opening arrays of pedestal portion 8e, form circle by adjacent configuration, fixed head 8q is configured at four bights of pedestal portion 8e respectively.In addition, be not electrically connected between the 1st metal parts 8n, the 2nd metal parts 8p and fixed head 8q.Be formed with downwards in the end side (side, Y2 direction) of the 1st metal parts 8n the 1st power supply terminal 8r that (Z2 direction) is bent processing, be formed with the 1st connecting portion 8s being bent processing upward in another side.In addition, be formed with in the end side (side, Y2 direction) of the 2nd metal parts 8p the 2nd power supply terminal 8t being bent processing downwards, be formed with the 2nd connecting portion 8v being bent processing upward in another side.In addition, the part being configured at the fixed head 8q of the vicinity of the 1st power supply terminal 8r extends downward, and forms earthy terminal 8b.In the metal parts 8m of formation like this, a part of fixed head 8q, the 1st power supply terminal 8r, the 1st connecting portion 8s, the 2nd power supply terminal 8t, the 2nd connecting portion 8v, earthy terminal 8b expose from pedestal portion 8e or give prominence to.As shown in Fig. 6 (a) ~ Fig. 6 (b), 1st power supply terminal 8r, the 2nd power supply terminal 8t, earthy terminal 8b are with the opposite side (side, X1 direction) from side end 8c, namely the mode that the part not being provided with the notch part 8d of side end 8c is given prominence to downwards, is arranged from the side (side, X2 direction) close to notch part 8d with the order of the 2nd power supply terminal 8t, the 1st power supply terminal 8r, earthy terminal 8b.By being arranged like this, the power supply terminal 8a be made up of the 1st power supply terminal 8r and the 2nd power supply terminal 8t is set.In addition, power supply terminal 8a forms a line with identical spacing, identical linearity with earthy terminal 8b.In addition, in the side (Y1 direction side) opposed with side end 8c and above the downside leaf spring configuration section 8f being configured in opposite side (side, X1 direction), 1st connecting portion 8s exposes, in the side opposed with side end 8c and above the downside leaf spring configuration section 8f being configured in side (side, X2 direction), the 2nd connecting portion 8v exposes.In addition, the center of the opening that optical axis L S is had by pedestal portion 8e, and be set as orthogonal with pedestal portion 8e.
Overlapped housing 1 above the substrate parts 8 so formed, and substrate parts 8 is integrated with housing 1, thus, as shown in Figure 3, casing 40 forms cubic, forms casing 40 with state distance piece 13 being fixed on the inside of housing 1, thus, fixation side parts 50 are formed.In addition, the fixing means for distance piece 13 will separately explain.
As shown in Fig. 8 (a) ~ Fig. 8 (b), plate-shaped member 9 is formed tabular.Plate-shaped member 9 has and to be made up of synthetic resin material and to form the base part 9d of tabular, the metal parts that the mode being embedded with to be formed conductive pattern at base part 9d is formed.In addition, be formed can the size of notch part 8d of basement parts 8 for the size of the Width (X1-X2 direction) of base part 9d.The metal parts being embedded in plate-shaped member 9 has conductive component 9b and multiple outside terminal 9a, conductive component 9b exposes in the one side side (face of side, Y1 direction) of base part 9d, and form conductive pattern, multiple outside terminal 9a and conductive component 9b is formed continuously, and gives prominence to downwards from the lower end (Z2 direction side end) of base part 9d.In addition, be provided with 4 outside terminal 9a in the 1st embodiment, 4 outside terminal 9a form a line with the spacing identical with the spacing arranging power supply terminal 8a and earthy terminal 8b, identical linearity.In addition, be formed with the end difference 9e outstanding relative to another side in the bottom of the another side side of plate-shaped member 9, the mode being provided with to block end difference 9e at the central portion of the Width of end difference 9e forms the holding section 9c of channel-shaped.In addition, holding section 9c is formed as the interval that can insert for the teat 1c of housing 1.In addition, in the 1st embodiment, in the one side side of plate-shaped member 9, Magnetic testi parts 6 are installed, and are fixed in conductive component 9b by welding.The Magnetic testi parts 6 being fixed on the one side side of plate-shaped member 9 are electrically connected with the conductive component 9b that the one side side at plate-shaped member 9 is exposed and conducting.That is, outside terminal 9a is electrically connected with Magnetic testi parts 6 via conductive component 9b.
Magnetic testi parts 6 are Hall element (Hall IC) in the 1st embodiment.Magnetic testi parts 6 form cubic, and a face (face of side, Y1 direction) is the detection faces 6a that can detect magnetic, have the portion of terminal 6b that input is used or exported at the both ends at the back side of detection faces 6a.In addition, when being fixed in plate-shaped member 9, portion of terminal 6b is welded in conductive component 9b.
As shown in Figure 2, driving magnet 3 is formed the magnet that section shape is the trapezoidal column of the pin with equal length.In addition, 2 trapezoidal pin angulations are 90 degree.Driving magnet 3 is magnetized to comprise as the face of the trapezoidal upper base of section shape and the mode that comprises the face of going to the bottom and become magnetic pole.
As shown in Figure 2, detection magnet 5 is the magnet being formed rectangular tabular.The mode that detection magnet 5 becomes magnetic pole with plate face (face that area is maximum) is magnetized.
As shown in Figure 2, evener 7 is identical with detection magnet 5 shape and weight is identical.In addition, in the 1st embodiment, evener 7 is formed the shape identical with detection magnet 5, and is made up of the magnet be magnetized same with detection magnet 5.
As shown in Figure 9, coil 4 is made up of metal wire rod, the winder 4a that the mode with the surrounding of the object of the column being wound in polygon is formed, and the end 4b of the both sides of metal wire rod is extended from winder 4a.In addition, the surface forming the metal wire rod of coil 4 is covered by insulating material, and a part of end 4b is not applied to insulating material.
As shown in Figure 10 (a) ~ Figure 10 (b), lens holder 2 is made up of synthetic resin material, and is formed the tubular that can keep phacoid LE.Lens holder 2 has and is formed cylindric cylindrical portion 2a, and the outer peripheral face of cylindrical portion 2a was formed to become octagon from upper side is observed, and is formed can tightens the screw thread of phacoid LE by spiral at the internal face of cylindrical portion 2a.In addition, the optical axis L S of phacoid LE and the central shaft of cylindrical portion 2a consistent.In the end of the upper side (side, Z1 direction) of cylindrical portion 2a, on the position (side, Ce HeX2 direction, X1 direction) that optical axis L S is opposed, be formed with the upside leaf spring configuration section 2b being formed smooth planar.In the bottom of cylindrical portion 2a, throughout cylindrical portion 2a the almost whole week be provided with the downside flange part 2c outstanding to the direction orthogonal relative to the outer peripheral face of cylindrical portion 2a.In addition, the teat 2e more outstanding than downside flange part 2c is formed with in a part of downside flange part 2c.Teat 2e is can the size of restriction recess 8k of basement parts 8, is located at side, Y1 direction in the 1st embodiment.In addition, in the upper end side of cylindrical portion 2a, be separated with downside flange part 2c and throughout cylindrical portion 2a the almost whole week be provided with the upper flange portion 2d outstanding to the direction orthogonal relative to the outer peripheral face of cylindrical portion 2a.As shown in Figure 11 (a) ~ Figure 11 (b), be provided with the magnet maintaining part 2f of the formation concave shape that can insert for detection magnet 5 in a part of upper flange portion 2d, be provided with the evener maintaining part 2g of the formation concave shape that can insert for evener 7 in the position opposed with magnet maintaining part 2f across optical axis L S.In addition, in the 1st embodiment, magnet maintaining part 2f is formed at the position of the side, Ce QieY2 direction, X2 direction of upper flange portion 2d, and evener maintaining part 2g is formed at the position of side, Ce QieY1 direction, X1 direction.In addition, as described in Figure 10 (a) ~ Figure 10 (b), the part be sandwiched between the downside flange part 2c of cylindrical portion 2a and upper flange portion 2d becomes coil maintaining part 2h.In addition, as shown in Figure 11 (a) ~ Figure 11 (b), below the flange part 2c of downside, downside leaf spring maintaining part 2k is provided with across the position that optical axis L S is opposed.In the 1st embodiment, downside leaf spring maintaining part 2k is located at side, Ce HeY2 direction, Y1 direction, and outstanding downwards and opening along cylindrical portion 2a is extended from the flange part 2c of downside, outstanding tip side is formed tabular surface.In addition, be provided with at the both ends of downside leaf spring maintaining part 2k more outstanding than downside leaf spring maintaining part 2k and be formed columned downside leaf spring maintenance projection 2m.In addition, as shown in Figure 10 (a) ~ Figure 10 (b) and Figure 11 (a) ~ Figure 11 (b), below the flange part 2c of downside, relative to the side, direction of the line orthogonal connected between the leaf spring maintaining part 2k of downside, be provided with and give prominence to downwards from the flange part 2c of downside respectively and be formed the coil winding part 2n of cubic.
In addition, in the 1st embodiment, as shown in Figure 12 (a) ~ Figure 12 (b), the coil maintaining part 2h (with reference to Figure 10 (a) ~ Figure 10 (b)) that coil 4 is wound in lens holder 2 forms winder 4a and is kept, as shown in figure 13, end 4b is fixed by being wound in coil winding part 2n.In addition, detection magnet 5 is inserted into the magnet maintaining part 2f of lens holder 2 in the mode becoming outside relative to coil 4, and is fixed by cementing agent.In addition, evener 7 is inserted into the evener maintaining part 2g of lens holder 2 in the mode becoming outside relative to coil 4, and is fixed by cementing agent.So, lens holder 2, coil 4, detection magnet 5, evener 7 form one.In addition, by being formed like this, at lens holder 2, at the side configuration detection magnet 5 across the opposed position of optical axis L S, and at opposite side configuration evener 7.In addition, the weight of the weight of coil 4, the weight of detection magnet 5 and evener 7 is added up to and that the weight ratio that obtains adds up to the weight of multiple (being 2 in the 1st embodiment) driving magnet 3 to obtain is lightweight.
As shown in figure 14, force application part 60 is made up of upside leaf spring 10 and downside leaf spring 11, and upside leaf spring 10 and downside leaf spring 11 have elasticity respectively.The leaf spring 60a of at least one party of upside leaf spring 10 and downside leaf spring 11 has part 1 60b, part 2 60c and is located at the elastic arm 60d between part 1 60b and part 2 60c.In addition, if be illustrated the summary of the leaf spring 60a of a side, then between part 1 60b and part 2 60c, be provided with multiple elastic arm 60d, in the 1st embodiment, be provided with elastic arm 60d 4 positions.The leaf spring 60a of one side has the extension 60e extended from the midway of elastic arm 60d, and extension 60e is made up of the linking part 60f linked between adjacent spring arm 60d.In addition, elastic arm 60d at least has a bend 60g, is linked between the bend 60g of adjacent elastic arm 60d by linking part 60f.In addition, linking part 60f has the wide width part 60h forming wide cut relative to other parts of linking part 60f, and is formed with through hole 60k at wide width part 60h.In addition, in the 1st embodiment, the leaf spring 60a of a side is upside leaf spring 10.Below, by being illustrated upside leaf spring 10, the detailed content of the leaf spring 60a of a side is illustrated.
As shown in Figure 15 (a) ~ Figure 15 (b), upside leaf spring 10 is made up of sheet metal, and has the upside part 1 10a of the flat board being formed arc-shaped.In addition, part 1 10a dimension in upside is equivalent to the position of the part 1 60b of the leaf spring 60a of one side.Part 1 10a on the upside of the position (side, Ce HeX2 direction, X1 direction) that the center of the circular arc formed across upside part 1 10a is opposed is configured with a pair.In addition, the center of the circular arc formed by upside part 1 10a, and the straight line orthogonal with upside part 1 10a and optical axis L S consistent.In addition, upside leaf spring 10 is formed as dimetric ring-type when overlooking from top (side, Z1 direction), and the upside part 2 10b that the mode with the surrounding surrounding upside part 1 10a configures.Upside part 2 10b is the position of the part 2 60c of the leaf spring 60a being equivalent to one side.In addition, upside leaf spring 10 has the upside elastic arm 10c be located between the part 1 10a and upside part 2 10b of upside.Multiple upside elastic arm 10c is provided with between upside part 1 10a and upside part 2 10b, in the 1st embodiment, upside elastic arm 10c is extended respectively from the both ends of upside part 1 10a, and be linked to four bights of the upside part 2 10b of nearest position, the end that is configured in apart from each upside part 1 10a, add up to and be arranged at 4 positions.Upside elastic arm 10c has the upside 1st arm 10d extended from an end of upside part 1 10a.1st arm 10d is extended to the direction be separated with upside part 1 10a in the mode of the circular arc formed along upside part 1 10a in upside, and is connected to one end of upside the 1st bend 10e.Upside the 1st bend 10e is formed the arc-shaped of semicircle, and is set to bending to the direction be separated with optical axis L S.In addition, upside the 1st bend 10e is one of the position being equivalent to above-mentioned bend 60g.The other end of upside the 2nd arm 10f the 1st bend 10e from upside, extended in the mode arranged side by side relative to upside the 1st arm 10d, and be connected to one end of upside the 2nd bend 10g of the arc-shaped being formed semicircle.Upside the 2nd bend 10g is same with upside the 1st bend 10e is of the position being equivalent to above-mentioned bend 60g.The other end of upside the 3rd arm 10h the 2nd bend 10g from upside, extended in the mode arranged side by side relative to upside the 2nd arm 10f, and be linked to one of them of four bights of upside part 2 10b.In addition, upside leaf spring 10 has the upside extension 10k extended to adjacent upside elastic arm 10c from upside the 1st bend 10e of the midway being located at upside elastic arm 10c.Upside extension 10k is the position being equivalent to above-mentioned extension 60e.In addition, so-called adjacent upside elastic arm 10c is when with on the upside of certain, elastic arm 10c is for benchmark, from the upside elastic arm 10c that different upside part 1 10a is extended, and for being located at the upside elastic arm 10c of more nearside.In addition, upside leaf spring 10 has the upside linking part 10m between upside the 1st bend 10e linking adjacent upside elastic arm 10c, and upside extension 10k is made up of upside linking part 10m.In addition, linking part 10m in upside is the position being equivalent to above-mentioned linking part 60f.In addition, upside linking part 10m has the upside wide width part 10n of other part wide cuts be formed as than upside linking part 10m respectively 2 positions, and is formed with upside through hole 10p respectively at upside wide width part 10n.In addition, upside wide width part 10n is the position being equivalent to above-mentioned wide width part 60h, and upside through hole 10p is the position being equivalent to through hole 60k.When the upside leaf spring 10 so formed secures upside part 2 10b, by the flexure of upside elastic arm 10c, upside part 1 10a can move along optical axis L S.
As shown in Figure 16 (a) ~ Figure 16 (b), downside leaf spring 11 by being arranged by leaf spring 11b on the downside of leaf spring 11a and the 2nd on the downside of the sheet metal is carried out to sheet metal processes the 1st, and is formed roughly rectangular ring-type.In addition, on the downside of in the of the 1st, on the downside of leaf spring 11a and the 2nd, leaf spring 11b is formed line symmetric shape, therefore, in the following description, omits the explanation to leaf spring 11b on the downside of the 2nd with the explanation of leaf spring 11a on the downside of the 1st.On the downside of in the of 1st, leaf spring 11a has the downside part 1 11c being formed arc-shaped (semicircle shape).In addition, at this, on the downside of in the of the 1st, on the downside of leaf spring 11a and the 2nd, the axis of symmetry SS of leaf spring 11b is the central point of the circular arc formed by downside part 1 11c when overlooking from side, Z1 direction.In addition, the central point of the circular arc that optical axis L S is formed by downside part 1 11c, orthogonal with axis of symmetry SS.Near the point midway of the circular arc that downside part 1 11c is formed at downside part 1 11c, be formed and be formed flat downside installation portion 11d.In addition, downside part 1 11c at the both ends of downside part 1 11c, be respectively equipped with 1 be formed the through hole that projection 2m can be kept to insert for the downside leaf spring of lens holder 2 the 1st on the downside of fixed orifice 11e.In addition, leaf spring 11a has the outside that is configured at the circular arc that downside part 1 11c is formed and across the downside part 2 11f of the opposed position of downside installation portion 11d on the downside of the 1st.Downside part 2 11f is formed right triangular shape, and each forms 1 respectively as fixed orifice 11g on the downside of the 2nd of through hole the.In addition, the weld part 11h as OBL through hole is formed with at the downside part 2 11f of a side (side, Y1 direction).In addition, leaf spring 11a has the downside elastic arm 11k connecting downside part 2 11f and downside part 1 11c on the downside of the 1st.Downside elastic arm 11k is made up of downside the 1st arm 11m, downside the 1st bend 11n, downside the 2nd arm 11p, downside the 2nd bend 11q and downside the 3rd arm 11r, downside the 1st arm 11m is in the mode of the circular arc formed along downside part 1 11c, extended to the direction of downside installation portion 11d from the both ends of downside part 1 11c; Downside the 1st bend 11n is formed arc-shaped and one end is linked to downside the 1st arm 11m; 2nd arm 11p is extended with the other end of mode from the downside 1st bend 11n arranged side by side with downside the 1st arm 11m in downside; Downside the 2nd bend 11q is formed arc-shaped and one end is linked to downside the 2nd arm 11p; 3rd arm 11r is extended with the other end of mode from the downside 2nd bend 11q arranged side by side with downside the 2nd arm 11p in downside, and is linked to downside part 2 11f.In addition, on the downside of in the of the 1st, to have the 1st bend 11n from downside extended for leaf spring 11a, and link across the opposed downside linking part 11s between downside the 1st bend 11n that configures of ground of downside installation portion 11d.Downside linking part 11s is linked in the mode in the outside of the circular arc formed by downside part 1 11c.In addition, on the downside of in the of the 2nd leaf spring 11b relative to the 1st on the downside of leaf spring 11a, be formed the shape of line symmetry across axis of symmetry SS.With make opposed mode between the two ends of downside part 1 11c each other configure the 1st on the downside of leaf spring 11b on the downside of leaf spring 11a and the 2nd, thus, the profile of downside leaf spring 11 is formed rectangular ring-type.When the downside leaf spring 11 so formed secures downside part 2 11f, downside elastic arm 11k bends, and thus, downside part 1 11c can move along optical axis L S.
Bolster 12 is made up of ultra-violet solidified gelatinous resin, in the 1st embodiment, uses the TB3168E that triple bond (ThreeBond) produces.
Then, Figure 17 (a) ~ structure of Figure 17 (c) to Figure 25 (a) ~ Figure 25 (b) to lens driver 100 is used to be illustrated.Figure 17 (a) ~ Figure 17 (c) is the figure of the fixing means illustrated to the housing 1 fixed upper leaf spring 10 of the 1st embodiment and distance piece 13, Figure 17 (a) is for representing the exploded perspective view of housing 1, upside leaf spring 10, distance piece 13, Figure 17 (b) is for representing that upside leaf spring 10 and distance piece 13 are fixed in the stereographic map of the state of housing 1, and Figure 17 (c) amplifies for the state of observing the B portion described in Figure 17 (b) from side, Z2 direction being carried out the enlarged drawing represented.Figure 18 (a) ~ Figure 18 (c) is the figure of the fixing means illustrated to the housing 1 fixed drive magnet 3 of the 1st embodiment and plate-shaped member 9, Figure 18 (a) is for representing the exploded perspective view of housing 1, driving magnet 3, plate-shaped member 9, Figure 18 (b) is for representing that driving magnet 3 and plate-shaped member 9 are fixed in the stereographic map of the state of housing 1, and Figure 18 (c) is the stereographic map of the installment state representing Magnetic testi parts 6.Figure 19 (a) ~ Figure 19 (b) is the figure of the fixing means of the lens holder 2 fixing downside leaf spring 11 illustrated to the 1st embodiment, Figure 19 (a) is for representing the exploded perspective view of lens holder 2 and downside leaf spring 11, and Figure 19 (b) represents the stereographic map being fixed with the state of downside leaf spring 11 at lens holder 2.Figure 20 (a) ~ Figure 20 (b) is for amplifying the enlarged drawing represented by the C portion described in Figure 19 (b), Figure 20 (a) is for representing the amplification plan view from the C portion the state of side, the Z2 direction observation described in Figure 19 (a) ~ Figure 19 (b), and Figure 20 (b) is for representing the enlarged side view from the C portion the state of side, the X2 direction observation described in Figure 19.Figure 21 (a) ~ Figure 21 (b) illustrates the figure to the fixing means of the substrate parts 8 fixed lens holding member 2 of the 1st embodiment, Figure 21 (a) is for representing the exploded perspective view of lens holder 2 and substrate parts 8, and Figure 21 (b) represents the stereographic map being fixed in the state of substrate parts 8 via downside leaf spring 11 lens holder 2.Figure 22 (a) ~ Figure 22 (c) is for representing the figure of the lens holder 2 and substrate parts 8 be integrally formed via the downside leaf spring 11 of the 1st embodiment, Figure 22 (a) is for representing the vertical view from the lens holder 2 be integrally formed the state of side, the Z1 direction observation described in Figure 21 (a) ~ Figure 21 (b) and substrate parts 8, Figure 22 (b) is for representing the side view from the lens holder 2 be integrally formed the state of side, the Y1 direction observation described in Figure 21 (a) ~ Figure 21 (b) and substrate parts 8, Figure 22 (c) is for amplifying the enlarged drawing represented by the D portion described in Figure 22 (a).Figure 23 (a) ~ Figure 23 (b) illustrates the figure housing 1 of the 1st embodiment being fixed on the fixing means of substrate parts 8, Figure 23 (a) is for representing the exploded perspective view of housing 1 and substrate parts 8, and Figure 23 (b) is the stereographic map of the outward appearance representing lens driver 100.Figure 24 (a) ~ Figure 24 (b) is the figure illustrating that the configuration of bolster 12 is formed, Figure 24 (a) is for representing the vertical view from the lens driver 100 state of side, the Z1 direction observation described in Figure 23 (b), and the enlarged drawing represented is amplified for representing by Figure 24 (b) in the E portion described in Figure 24 (a).Figure 25 (a) ~ Figure 25 (b) is the in-built schematic diagram of the lens driver 100 of expression the 1st embodiment, Figure 25 (a) is for representing the in-built schematic diagram from the lens driver 100 state of side, the Z1 direction observation described in Figure 23 (b), and Figure 25 (b) is for representing the in-built schematic diagram from the lens driver 100 state of side, the X2 direction observation described in Figure 23 (b).In addition, in Figure 25 (a) ~ Figure 25 (b), for ease of illustrating, the constituent parts of a part for upside leaf spring 10 and distance piece 13 etc. is not recorded.
As shown in Figure 17 (a) ~ Figure 17 (c), distance piece 13 is configured at the positioned internal projection 13a of housing 1 outstanding to the open side (side, Z2 direction) of housing 1, and contact with top part 1e, be fixed in housing 1 by cementing agent.In addition, upside leaf spring 10 is configured in the inside of housing 1 in the mode that the inner side in four bights of upside part 2 10b engages with the locator protrusions 13a of distance piece 13, and is fixed in distance piece 13 by cementing agent.
As shown in Figure 18 (a) ~ Figure 18 (c), plate-shaped member 9 engages with holding section 9c at the teat 1c of housing 1, and under the state making outside terminal 9a be exposed to the foreign side of housing 1, be equipped in casing 40 (housing 1) in the mode of the inner face along sidewall portion 1b, the another side of plate-shaped member 9 is fixed in the inner face of the sidewall portion 1b of housing 1 by cementing agent.The mode that plate-shaped member 9 engages with holding section 9c with teat 1c is fixed, and thus, plate-shaped member 9 is equipped on the position of the side (side, X2 direction) near housing 1.In addition, by arranging plate-shaped member 9 like this, Magnetic testi parts 6 are disposed of the inner side making detection faces 6a towards housing 1.In addition, a pair driving across optical axis L S with magnet 3, is being positioned at a pair bight 1a (not configuring a pair bight 1a of plate-shaped member 9) respectively each configuration 1 of a side at diagonal angle of casing 40 (housing 1), and is being fixed by cementing agent.That is, multiple driving magnet 3 is fixed in fixation side parts 50.Now, when overlooking from side, Z2 direction, driving magnet 3 is equipped in casing 40 along the mode of the inner face of sidewall portion 1b respectively with the side of the trapezoidal pin comprising driving magnet 3 and formed, and contacts with the locator protrusions 13a (with reference to Figure 17 (a) ~ Figure 17 (c)) of distance piece 13.
As mentioned above, lens holder 2 holding coil 4, detection magnet 5, evener 7, and form one.As shown in Figure 19 (a) ~ Figure 19 (b), on the downside of the downside leaf spring maintenance projection 2m of lens holder 2 is inserted the 1st after fixed orifice 11e, downside leaf spring keeps projection 2m to be clenched, thus, the downside part 1 11c (part 1 60b) of downside leaf spring 11 is fixed in the bottom (downside leaf spring maintaining part 2k, with reference to Figure 11 (a) ~ Figure 11 (b)) of lens holder 2.In addition, as shown in Figure 20 (a) ~ Figure 20 (b), the coil winding part 2n being wound with the lens holder 2 of the end 4b of coil 4 is configured in the side of the downside installation portion 11d of downside leaf spring 11, by scolding tin SO, downside installation portion 11d and coil 4 are electrically connected, and are fixed.
As shown in Figure 21 (a) ~ Figure 21 (b), with the lens holder 2 of downside leaf spring 11 one in the opposed mode of the downside leaf spring configuration section 8f of lower side panel spring 11 and substrate parts 8, overlap with substrate parts 8.Now, as shown in Figure 22 (a) ~ Figure 22 (c), downside leaf spring 11 be configured to downside leaf spring fixed projection 8g be inserted into the 2nd on the downside of fixed orifice 11g, and weld part 11h touches on the 1st connecting portion 8s (with reference to Fig. 6) and the 2nd connecting portion 8v (with reference to Fig. 6) respectively.Downside leaf spring fixed projection 8g is clenched, and thus, the downside part 2 11f (part 2 60c) of the downside leaf spring 11 of so configuration is fixed in substrate parts 8 (fixation side parts 50).Thus, downside leaf spring 11 can in the scope of elastic deformation at downside elastic arm 11k, with can in bottom to the mode support of lens holding member 2 of optical axis direction DR1 (Z1-Z2 direction) movement.In addition, weld part 11h is fixed in the 1st connecting portion 8s and the 2nd connecting portion 8v by welding WE, 1st connecting portion 8s and the 2nd connecting portion 8v and the weld part 11h downside part 2 11f of the surrounding being positioned at weld part 11h (tightly, be) is electrically connected.Be electrically connected like this with weld part 11h by the 1st connecting portion 8s and the 2nd connecting portion 8v, be electrically connected with the 2nd power supply terminal 8t via downside leaf spring 11 and coil the 4,1st power supply terminal 8r.In addition, the teat 2e of lens holder 2 is configured in the restriction recess 8k (between limiting wall 8h) of substrate parts 8, when downside leaf spring 11 downside elastic arm 11k can the scope inward-bound light direction of principal axis DR1 of elastic deformation move, lens holder 2 does not also come off from restriction recess 8k.
As shown in Figure 23 (a) ~ Figure 23 (b), the housing 1 that driving magnet 3, Magnetic testi parts 6, plate-shaped member 9, upside leaf spring 10, distance piece 13 are integrally formed overlaps with the substrate parts 8 of lens holder 2, coil 4, detection magnet 5, evener 7, downside leaf spring 11 one.Now, housing 1 is configured to make plate-shaped member 9 be erected on the state of notch part 8d to configure plate-shaped member 9, and lens holder 2 is contained in the inside of the casing 40 be made up of housing 1 and substrate parts 8.The bight 1a of the housing 1 of configuration like this is configured on the fixed head 8q of substrate parts 8 respectively, and bight 1a is fixed by welding with fixed head 8q, and housing 1 is connected to earthy terminal 8b via fixed head 8q, and can ground connection.In addition, now, the upside part 1 10a (with reference to Figure 15 (a) ~ Figure 15 (b)) of upside leaf spring 10 is configured to contact with the upside leaf spring configuration section 2b of lens holder 2 (with reference to Figure 10 (a) ~ Figure 10 (b)), upside part 1 10a (part 1 60b), in the mode at upper support lens holder 2, is fixed by cementing agent and upside leaf spring configuration section 2b.Thus, the force application part 60 be made up of upside leaf spring 10 and downside leaf spring 11 is with can to the mode support of lens holding member 2 of optical axis direction DR1 movement.In addition, as shown in Figure 24 (a) ~ Figure 24 (b), the bolster 12 of pasty state exposes from the peristome 1d of housing 1, applied and be set to connect between upside extension 10k (extension 60e, upside linking part 10m) and lens holder 2 and upside extension 10k (extension 60e, upside linking part 10m) and upside part 2 10b (part 2 60c).In addition, the part connecting upside extension 10k and the bolster 12 between lens holder 2 and is connected the bolster 12 between the extension 10k and upside part 2 10b of upside is arranged continuously under by the state of wide width part 10n (wide width part 60h) on the upside of being placed in.In addition, by be placed in upside wide width part 10n state under be set as by the bolster 12 arranged continuously the inside that a part invades the upside through hole 10p (through hole 60k, with reference to Figure 15 (a) ~ Figure 15 (b)) being located at upside wide width part 10n.By the peristome 1d from housing 1 to bolster 12 irradiation ultraviolet radiation of the pasty state that the peristome 1d from housing 1 exposes, bolster 12 is changing into gel.In addition, bolster 12 is located in a pair wise manner across the opposed position of the central portion of lens holder 2.Form lens driver 100 like this.
In addition, as shown in Figure 23 (a) ~ Figure 23 (b), the lens driver 100 so formed is formed with the casing 40 be made up of housing 1 and substrate parts 8 and the fixation side parts 50 be made up of casing 40 and distance piece 13 (with reference to Fig. 3 (a) ~ Fig. 3 (b)).In addition, in the side end 8c side of substrate parts 8, outside terminal 9a is positioned at the side (side, X2 direction) of side end 8c, power supply terminal 8a and earthy terminal 8b is positioned at opposite side (side, X1 direction), and power supply terminal 8a, earthy terminal 8b and outside terminal 9a are to be configured to row at equal intervals.
In addition, as mentioned above, the driving magnet 3 being configured at the inside of casing 40 be positioned at across optical axis L S casing 40 (housing 1) diagonal angle a side a pair bight 1a on configure 1 respectively, and as shown in Figure 25 (a) ~ Figure 25 (b), configured separate on the position opposed with coil 4, in the 1st embodiment, there is driving magnet 3 and coil 4, form driving mechanism 70.The electromagnetic force that driving mechanism 70 can produce by making electric current flow through coil 4, the lens holder 2 making coil 4 be wound in periphery moves along optical axis direction DR1.
In addition, as mentioned above, at lens holder 2, detection magnet 5 is configured in the side across the opposed position of optical axis L S, and evener 7 is configured in opposite side, detection magnet 5 and evener 7 are configured in position corresponding with a pair bight 1a (the bight 1a of non-configuration driven magnet 3) of the opposing party at the diagonal angle being positioned at casing 40 (housing 1) respectively.In addition, the so-called position corresponding with bight 1a is the position opposed with bight 1a.
In addition, the plate-shaped member 9 being equipped with Magnetic testi parts 6 is disposed of the side (side, Y2 direction) being erected on lens holder 2, the Magnetic testi parts 6 being equipped on plate-shaped member 9 are configured in the side of lens holder 2 (side, Y2 direction), and are set as opposed with the detection magnet 5 being fixed on lens holder 2.Position detecting mechanism 80 is configured to detection magnet 5 and the Magnetic testi parts 6 with so arranging.Magnetic testi parts 6 sensing in position detecting mechanism 80 can with lens holder 2 integratedly along the magnetic field that the detection magnet 5 of optical axis direction DR1 (Z1-Z2 direction) movement produces, calculate according to the change along the magnetic field that the movement of optical axis direction DR1 senses of Magnetic testi parts 6 along with detection magnet 5, the position of the optical axis direction DR1 of lens holder 2 can be detected.
Then the action of lens driver 100 is illustrated.Lens driver 100, by supplying electric power from power supply terminal 8a, can make electric current flow through coil 4.In addition, flow through the electric current of coil 4 towards switching by being located at outside control part.If original state will be set to the state that coil 4 is energized, then at the lens driver 100 of original state, the position that on the upside of lens holder 2 is configured in, the elastic force of leaf spring 10 and the elastic force of downside leaf spring 11 balance.If make electric current by coil 4 via the 1st power supply terminal 8r and the 2nd power supply terminal 8t, then coil 4 is configured in the magnetic field that driving magnet 3 produces, and therefore, Lorentz force acts on coil 4.Coil 4 reels along the periphery of the cylindrical portion 2a of lens holder 2, and therefore, electric current flows through along the periphery of cylindrical portion 2a.In addition, the magnetic field that driving magnet 3 produces is formed to report to the leadship after accomplishing a task with coil 4, and therefore, Lorentz force acts on the either direction of optical axis direction DR1, i.e. Z1 direction described in Figure 23 (a) ~ Figure 23 (b) or Z2 direction.Therefore, driving mechanism 70 can make the elastic force overcoming force application part 60 with the lens holder 2 of coil 4 one, moves along optical axis direction DR1.In addition, towards the opposite by the electric current that makes to flow through coil 4, also can change the moving direction of lens holder 2.Therefore, by making the lens holder 2 being assembled with phacoid LE (with reference to Figure 10 (a) ~ Figure 10 (b)) move along optical axis direction DR1, the focus of photographs can be aimed at.In addition, the change in the magnetic field that detection magnet 5 produces is sensed by Magnetic testi parts 6, thereby, it is possible to detected the position of the lens holder 2 of optical axis direction DR1 by position detecting mechanism 80.The positional information of the lens holder 2 detected by position detecting mechanism 80 is fed back to is located at outside control part.Such as, in the position for moving to from original state to the regulation of Z1 direction extractor gauge set a distance, and by position detecting mechanism 80 detect by lens holder 2 to than regulation the side movement of Geng XiangZ1 direction, position when, the electric current that coil 4 can flow through by the control part receiving feedback from position detecting mechanism 80 towards switching to reverse direction, and the Lorentz force in the direction returned the position making lens holder 2 to regulation is energetically applied to lens holder 2.
Below, the effect produced by employing the 1st embodiment is illustrated.
The feature of the lens driver 100 of the 1st embodiment is to possess: casing 40, the lens holder 2 of tubular, is housed inside casing 40, and can keep phacoid LE, force application part 60, can make lens holder 2 to optical axis direction DR1 support of lens holding member movably, driving mechanism 70, be configured to have and make lens holder 2 along the driving magnet 3 of optical axis direction DR1 movement and coil 4, wherein, there is position detecting mechanism 80, the position of the optical axis direction DR1 of lens holder 2 is detected, position detecting mechanism 80 is configured to have the detection magnet 5 that is fixed on lens holder 2 and opposed with detection magnet 5 the Magnetic testi parts 6 arranged, plate-shaped member 9 be provided with Magnetic testi parts 6 and be provided with the multiple conductive component 9b with Magnetic testi parts 6 conducting, plate-shaped member 9 is disposed of and erects in the side of lens holder 2.
Thus, by arranging the position detecting mechanism 80 detected the position of the optical axis direction DR1 of lens holder 2, can the position of correcting lens holding member 2 while make lens holder 2 move to the assigned position of the focal position of image etc.Thereby, it is possible to shorten the time till the position of lens holder 2 is determined.In addition, Magnetic testi parts 6 can configure by plate-shaped member 9 is easily opposed with detection magnet 5, and plate-shaped member 9 is equipped on the side of lens holder, therefore, as compared to the situation that Magnetic testi parts 6 and plate-shaped member 9 are configured at the lower side of lens holder 2, the height dimension (size of optical axis direction) of lens driver can be suppressed to become large.
In addition, the feature of the drive unit 100 of the 1st embodiment is, casing 40 has: housing 1, has sidewall portion 1b; With, substrate parts 8, integrated with housing 1, conductive component 9b is made up of the metal parts being embedded in plate-shaped member 9, and a part is exposed from plate-shaped member 9, forms outside terminal 9a.
Thus, conductive component 9b is made up of the metal parts being embedded in plate-shaped member 9, and a part is exposed from plate-shaped member 9, form outside terminal 9a, therefore, easily the Wiring pattern of Magnetic testi parts 6 with the substrate being provided with lens driver etc. can be electrically connected via outside terminal 9a, and without the need to using connector or lead-in wire etc.
In addition, the feature of the lens driver 100 of the 1st embodiment is, is provided with multiple power supply terminal 8a, outside terminal 9a for being energized to coil 4 and power supply terminal 8a forms a line at substrate parts 8.
Thus, because outside terminal 9a and power supply terminal 8a forms a line, therefore, the layout being provided with the Wiring pattern of the installation base plate of lens driver etc. becomes easy.
In addition, the feature of the lens driver 100 of the 1st embodiment is, housing 1 is formed by sheet metal, and is provided with for the earthy terminal 8b by housing 1 ground connection at substrate parts 8, and outside terminal 9a, power supply terminal 8a and earthy terminal 8b form a line.
Thus, the layout being provided with the Wiring pattern of the installation base plate of lens driver etc. becomes easy.In addition, when outside terminal 9a, power supply terminal 8a and earthy terminal 8b form a line, there is not the part of these terminals without the need to arranging installation base plate, therefore, also can by installation base plate miniaturization.
In addition, the feature of the lens driver 100 of the 1st embodiment is, be formed with the notch part 8d that can be configured under the state making plate-shaped member 9 erect at the side end 8c of substrate parts 8, have power supply terminal 8a at the partial configuration of the notch part 8d not being provided with side end 8c.
Thereby, it is possible to easily outside terminal 9a and power supply terminal 8a is formed a line.
In addition, the feature of the lens driver 100 of the 1st embodiment is, is fixed with Magnetic testi parts 6 in the one side side of plate-shaped member 9, and the another side of plate-shaped member 9 is fixed on the inner face of the sidewall portion 1b of housing 1 by cementing agent.
Thereby, it is possible to bond with large area, so, reliably plate-shaped member 9 can be remained on the state erected.
In addition, the feature of the lens driver 100 of the 1st embodiment is, be provided with the holding section 9a being formed channel-shaped in the another side side of plate-shaped member 9, and be formed with outstanding teat 1c downwards at the sidewall portion 1b of housing 1, teat 1c engages with holding section 9c.
Thereby, it is possible to the simple formation being inserted into holding section 9c with teat 1c is to carry out the location of housing 1.
In addition, the feature of the lens driver 100 of the 1st embodiment is to possess: fixation side parts 50, comprises casing 40; The lens holder 2 of tubular, is housed inside casing 40, and can keep phacoid LE; Force application part 60, can make lens holder 2 to optical axis direction DR1 support of lens holding member movably; Driving mechanism 70, be configured to have and make lens holder 2 along the driving magnet 3 of optical axis direction DR1 movement and coil 4, wherein, there is position detecting mechanism 80, the position of the optical axis direction DR1 of lens holder 2 is detected, position detecting mechanism 80 is configured to have the detection magnet 5 that is fixed on lens holder 2 and opposed with detection magnet 5 the Magnetic testi parts 6 arranged, coil 4 is wound in the periphery of lens holder 2, and multiple driving magnet 3 is fixed on fixation side parts 50.
Thus, by arranging the position detecting mechanism 80 detected the position of the optical axis direction DR1 of lens holder 2, can the position of correcting lens holding member 2 while make lens holder 2 move to the assigned position of the focal position of image etc.Therefore, it is possible to shorten the time till the position of lens holder 2 is determined, and the lens driver of the high speed can tackling automatic focusing can be provided.
In addition, detection magnet 5 is the sizes of the degree that can produce the magnetic field detected by Magnetic testi parts 6, therefore, it is possible to adopt minimum and light magnet, so, the weight being applied to lens holder 2 can be suppressed.Therefore, the position correcting the lens holder 2 in moving is easy to.In addition, due to the weight being applied to lens holder 2 can be suppressed, so the electric current flowing through coil 4 in order to make lens holder 2 drive a little.That is, can provide and make lens holder 2 drive required electric power few, and the lens driver of electric power saving can be tackled.
In addition, the feature of the lens driver 100 of the 1st embodiment is, in lens holder 2, at the side configuration detection magnet 5 across the opposed position of optical axis L S, and at opposite side configuration evener 7, evener 7 is identical with detection magnet 5 weight.
Thus, lens holder 2, across the side configuration detection magnet 5 of the opposed position of optical axis L S, and at the opposite side configuration evener 7 identical with detection magnet 5 weight, thereby, it is possible to make the weight of the both sides across optical axis L S average out.Therefore, the stable posture of lens holder 2, when mobile or change the situation etc. of moving direction, lens holder 2 not easily tilts.Therefore, it is possible to provide the lens driver of the high speed can tackling automatic focusing more reliably.
In addition, the feature of the lens driver 100 of the 1st embodiment is, add up to the weight of the weight of coil 4, the weight of detection magnet 5 and evener 7 and the weight ratio that obtains adds up to the weight of multiple driving magnet 3 and obtain lightweight.
Thus, compared with driving magnet 3 being equipped on the situation of the formation of lens holder 2 with employing, the weight being applied to lens holder 2 can be alleviated.Therefore, it is possible to reduce to make lens holder 2 drive required electric power, and be easy to seek electric power saving.
In addition, the feature of the lens driver 100 of the 1st embodiment is, casing 40 is formed as cubic, across optical axis L S, 1 driving magnet 3 is respectively configured respectively at a pair bight 1a of a side at the diagonal angle being positioned at casing 40, detection magnet 5 is held in the side of the position corresponding with a pair bight 1a of the opposing party of casing 40 by lens holder 2, and evener 7 is held in the opposite side of the position corresponding with a pair bight 1a of the opposing party.
Thus, because casing 40 is formed as cubic, so, be easy to form space near the bight 1a of casing 40 inside.By at such space matching constituent parts, in limited space, constituent parts can be configured efficiently, so, the maximization of lens driver can be suppressed.
In addition, the feature of the lens driver 100 of the 1st embodiment is, evener 7 is formed as the shape identical with detection magnet 5, and is made up of the magnet be magnetized in the same manner as detection magnet 5.
Thus, detection magnet 5 and driving magnet 3 are magnetically affecting each other.Identical with detection magnet 5 by evener 7 is set to, the weight of the both sides across optical axis L S can be made to average out, and balance magnetically can be obtained.Therefore, the posture of lens holder 2 is more stable, and when mobile or change the situation etc. of moving direction, lens holder 2 more not easily tilts.Therefore, it is possible to reliably provide the lens driver of the high speed can tackling automatic focusing further.
In addition, the feature of the lens driver 100 of the 1st embodiment is, Magnetic testi parts 6 are configured at the side of lens holder 2.
Thus, by adopting the formation of side Magnetic testi parts 6 being configured at lens holder 2, height dimension can be reduced.In addition, in portable equipment, there is the equipment needing slimming, low dwarfing.Therefore, it is possible to provide slim and the lens driver of the high speed of automatic focusing can be tackled.
In addition, the feature of the lens driver 100 of the 1st embodiment is, casing 40 has: housing 1, has sidewall portion 1b; Substrate parts 8, one is formed and the power supply terminal 8a be provided with for being energized to coil 4 with housing 1, have and be equipped with Magnetic testi parts 6 and the plate-shaped member 9 of the multiple outside terminal 9a be electrically connected with Magnetic testi parts 6, under the state making outside terminal 9a be exposed to the foreign side of housing 1, be disposed in casing 40 in the mode of the inner face along sidewall portion 1b, power supply terminal 8a and outside terminal 9a is configured to form a line.
Thus, by the plate-shaped member 9 having carried Magnetic testi parts 6 is configured at casing 40, can easily at the side of lens holder 2 configuration Magnetic testi parts.In addition, power supply terminal 8a and outside terminal 9a forms a line, and therefore, the layout being provided with the installation base plate of lens driver etc. becomes easy.Form simple and easy therefore, it is possible to provide and easy lens driver is installed.
In addition, the feature of the lens driver 100 of the 1st embodiment is, force application part 60 is made up of the upside leaf spring 10 at upper support lens holder 2 and the downside leaf spring 11 at lower support lens holder 2, upside leaf spring 10 and downside leaf spring 11 have elasticity respectively, when not being energized to coil 4, lens holder 2 is configured in the position of the elastic force of upside leaf spring 10 and the elastic force balance of downside leaf spring 11.
Thus, when not being energized to coil 4, lens holder 2 is positioned at the neutral position of upside leaf spring 10 and downside leaf spring balance, therefore, when lens holder 2 is to the lower side force of optical axis direction DR1, need the applying power overcoming leaf spring to lift lens holder 2, but owing to not needing like this, so electric power required when holding parts from halted state driving lens is very little, the lens driver saving electric power can be provided.
In addition, the feature of the lens driver 100 of the 1st embodiment is, the teat 2e of lens holder 2 is configured in the restriction recess 8k of substrate parts 8, and the mode that teat 2e is configured to be limited recess 8k guiding moves along optical axis direction DR1.Thus, when the installation of phacoid LE or when making lens driver 100 fall, can prevent lens holder 2 from rotating, force application part 60 is out of shape and breakage by mistake.
In addition, the feature of the lens driver 100 of the 1st embodiment is to possess: the lens holder 2 of tubular, can keep phacoid LE, force application part 60, can make lens holder to optical axis direction DR1 support of lens holding member 2 movably, fixation side parts 50, are fixed a part for force application part 60, driving mechanism 70, be configured at least have and make lens holder 2 along the driving magnet 3 of optical axis direction DR1 movement and coil 4, force application part 60 is made up of with the downside leaf spring 11 being fixed on bottom the upside leaf spring 10 on the top being fixed on lens holder 2, the leaf spring 60a of at least one party of upside leaf spring 10 and downside leaf spring 11 has the part 1 60b being fixed on lens holder 2, the part 2 60c being fixed on fixation side the parts 50 and elastic arm 60d be located between part 1 60b and part 2 60c, wherein, the leaf spring 60a of one side has the extension 60e extended from the midway of elastic arm 60d, with connect extension 60e and lens holder 2 or and part 1 60b between, and, extension 60e and fixation side parts 50 or and part 2 60c between, mode between at least one party is provided with bolster 12.
Thus, bolster 12 be located at the extension 60e of leaf spring and lens holder 2 or and the part 1 60b of leaf spring 60a (force application part 60) between, and extension 60e and fixation side parts 50 or and part 2 60c between, between at least one party, therefore, coil 4 is being energized, and when lens holder 2 moves to optical axis direction DR1, excessive movement can be being suppressed, so, the time till being stable at assigned position can be shortened.In addition, when lens holder 2 moves to optical axis direction DR1, be located at the part 1 60b of leaf spring 60a and also move to a certain degree to the direction identical with lens holder 2 with the midway part of the elastic arm 60d between part 2 60c.Therefore, when bolster 12 is located at the extension 60e and lens holder 2 that extend from the midway of the elastic arm 60d of leaf spring 60a or and the part 1 60b of leaf spring 60a between, bolster 12 can be suppressed to produce large distortion along with the movement of lens holder 2, therefore, it is possible to make the disrumpent feelings of bolster 12 or the breakage to come off etc. not easily occurs.In the same manner, when bolster 12 is located at the extension 60e of elastic arm 60d of leaf spring 60a and fixation side parts 50 or and the part 2 60c of leaf spring 60a between, also bolster 12 can be suppressed to produce large distortion along with the movement of lens holder 2, therefore, it is possible to make the breakage of bolster 12 not easily occur.In addition, controlled the movement of lens holder 2, but exceeded the situation of the assigned position making lens holder 2 movement by position detecting mechanism 80, bolster 12 produces and makes lens holder 2 return the elastic force in the direction of assigned position.In addition, when creating undesirable vibration, bolster 12 has the effect suppressing this vibration.In addition; bolster 12 be located at the midway of the elastic arm 60d of leaf spring 60a and lens holder 2 or and the part 1 60b of leaf spring between; and extension 60e and fixation side parts 50 or and part 2 60c between; therefore; under forming bolster 12 situation by gelatinous resin; along with lens holder 2 is to the movement of optical axis direction DR1; the midway part of elastic arm 60d also moves to a certain degree to equidirectional; therefore; gelatinous bolster 12 is not easily broken, can guarantee pooling feature.
In addition, the feature of the lens driver 100 of the 1st embodiment is, is provided with multiple elastic arm 60d between part 1 60b and part 2 60c, and extension 60e is made up of the linking part 60f linked between adjacent spring arm 60d.
Thus, extension 60e is set to the linking part 60f linked between adjacent spring arm 60d, so the region that can arrange bolster 12 becomes large, is easy to arrange bolster 12.In addition, owing to linking between elastic arm 60d, so, support each other between adjacent spring arm 60d, the rigidity in the direction (horizontal direction) of reporting to the leadship after accomplishing a task with optical axis direction DR1 can improving lens holder 2, and the stable posture of lens holder 2 can be made.
In addition, in the lens driver 100 of the 1st embodiment, because bolster 12 is made up of ultra-violet solidified gelatinous resin, therefore coating easily.
In addition, the feature of the lens driver 100 of the 1st embodiment is, elastic arm 60d at least has a bend 60g, is linked between the bend 60g of adjacent spring arm 60d by linking part 60f.
Thus, the bend 60g that the deflection to optical axis direction DR1 is few is connected with linking part 60f, and linking part 60f is few to the restriction of the motion of optical axis direction DR1 to elastic arm 60d, therefore, it is possible to guarantee the function as force application part 60.In addition, owing to linking between the few bend 60g of the deflection of optical axis direction DR1 by linking part 60f, so the position of the optical axis direction DR1 of adjacent flex portion 60g not easily occurs difference, and lens holder 2 not easily tilts.
In addition, the feature of the lens driver 100 of the 1st embodiment is, the leaf spring 60a of a side is upside leaf spring 10.
Thus, the leaf spring 60a of a side does not block by lens holder 2, so, even if also bolster 12 can be arranged after the insertion.
In addition, the feature of the lens driver 100 of the 1st embodiment is, lens holder 2 is housed inside the housing 1 with peristome 1d, and bolster 12 is made up of ultra-violet solidified gelatinous resin, and exposes from the peristome 1d of housing 1.
Thus, after assembling, (gelatinous resin) Tu cloth, and can to bolster 12 irradiation ultraviolet radiation, assembling becomes easy can to carry out bolster 12 from peristome 1d.
In addition, the feature of the lens driver 100 of the 1st embodiment is, with connect linking part 60f and lens holder 2 or and part 1 60b between mode be provided with bolster 12, and with connect linking part 60f and fixation side parts 50 or and part 2 60c between mode be provided with bolster 12.
Thus, by linking part 60f and lens holder 2 or and the part 1 60b of leaf spring (force application part 60) between, and linking part 60f and fixation side parts 50 or and part 2 60c between two sides bolster 12 is set, coil 4 is energized, the time till lens holder 2 is stable at assigned position can be shortened further.
In addition, the feature of the lens driver 100 of the 1st embodiment is, linking part 60f has the wide width part 60h of other part wide cuts be formed than linking part 60f, and be formed with through hole 60k at wide width part 60h, be located at linking part 60f and lens holder 2 or and part 1 60b between bolster 12 and, be located at linking part 60f and fixation side parts 50 or and part 2 60c between bolster 12, a part by be placed in wide width part 60h state under arranged continuously.
Thereby, it is possible to arrange the bolster 12 of two sides with same processes, good operability.In addition, the wide width part 60h being formed with through hole 60k is located at by bolster 12, therefore, it is possible to increase the contact area of bolster 12 and linking part 60f, and reliably bolster 12 can be held in necessary part.
In addition, the feature of the lens driver 100 of the 1st embodiment is, bolster 12 is located in couples across the opposed position of the central portion of lens holder 2.
Thus, by being located at by bolster 12 across the opposed position of the central portion of lens holder 2 in couples, can configure bolster 12 well relative to lens holder 2 balance, lens holder 2 not easily tilts.
As described above, particularly the lens driver of embodiments of the present invention is illustrated, but the present invention is not limited to above-mentioned embodiment, various change can be carried out in the scope not departing from purport and implement.Such as can carry out distortion as follows to implement, these embodiments also all belong in technical scope of the present invention.
In 1st embodiment, the formation of employing is: be provided with bolster 12 in the mode connected between linking part 60f and lens holder 2, and is provided with bolster 12 in the mode connected between linking part 60f and part 2 60c.But, be connected to extension 60e and lens holder 2 or and part 1 60b between, and extension 60e and fixation side parts 50 or and part 2 60c between, formation that mode between at least one party is provided with bolster 12 also can.Such as, as shown in Figure 26 (a), can be only between linking part 60f and fixation side parts 50 (distance piece 13), be provided with bolster 12, or as shown in Figure 26 (b), between linking part 60f and part 1 60b, be only provided with the formation of bolster 12.In addition, the figure of the variation that the configuration that Figure 26 (a) ~ Figure 26 (b) is the bolster 12 of expression the 1st embodiment is formed, Figure 26 (a) is only provided with the schematic diagram of the variation of bolster 12 between linking part 60f and fixation side parts 50 for representing, Figure 26 (b) represents the schematic diagram being only provided with the variation of bolster 12 between linking part 60f and part 1 60b.In addition, in Figure 26 (a) ~ Figure 26 (b), for ease of illustrating, some constituent parts are not recorded.In addition, the upside leaf spring 10 described in Figure 26 (b) is different from the structure of the upside leaf spring 10 of the 1st embodiment, but uses identical toponymy and symbol.
In the 1st embodiment, the leaf spring 60a of one side with the extension 60e extended from the midway of elastic arm 60d is set to upside leaf spring 10, but also can be downside leaf spring 11, also can be the structure arranging extension 60e two sides of upside leaf spring 10 and downside leaf spring 11.
In the 1st embodiment, housing 1 is made up of the sheet metal of nonmagnetic material, driving mechanism 70 is configured to have driving magnet 3 and coil 4, but also can form housing 1 by the sheet metal of magnetic, and driving mechanism 70 is configured to there is housing 1, driving magnet 3 and coil 4.
In the 1st embodiment, form bolster 12 by ultra-violet solidified gelatinous resin, but may not be ultra-violet solidified.
In the 1st embodiment, have employed the formation that bolster 12 is set, but also can adopt the formation not using bolster 12.
In the 1st embodiment, have employed and carry out the fixing structure of upside leaf spring 10 to fixation side parts 50 and lens holder 2 by bonding, but also can be fixed by riveted joint.
In the 1st embodiment, as plate-shaped member 9, the formation of employing is made up of the synthetic resin members being embedded with the conductive component 9b be made up of metal parts, but also can form plate-shaped member 9 by the printed base plate being defined conductive pattern by etching etc.
Claims (8)
1. a lens driver, is characterized in that, possesses:
Casing;
The lens holder of tubular, is housed inside above-mentioned casing, and can keep phacoid;
Force application part, can support said lens holding member along the mode of optical axis direction movement with above-mentioned lens holder; And
Driving mechanism, makes said lens holding member move along optical axis direction, is configured at least have driving magnet and coil,
Said lens drive unit has the position detecting mechanism detected the position on the optical axis direction of said lens holding member,
Above-mentioned position detecting mechanism is configured to have the detection magnet and the Magnetic testi parts opposite disposed with this detection magnet that are fixed on said lens holding member,
Plate-shaped member is disposed of and erects in the side of said lens holding member, this plate-shaped member is provided with above-mentioned Magnetic testi parts and is provided with the multiple conductive components with this Magnetic testi parts conducting.
2. lens driver according to claim 1, is characterized in that,
Above-mentioned casing has: housing, has sidewall portion; And substrate parts, it is integrated with this housing,
Above-mentioned conductive component is made up of the metal parts being embedded in above-mentioned plate-shaped member, and a part is exposed from above-mentioned plate-shaped member and forms outside terminal.
3. lens driver according to claim 2, is characterized in that,
Be provided with for the multiple power supply terminals to above-mentioned coil electricity at above-mentioned substrate parts, said external terminal and above-mentioned power supply terminal form a line.
4. lens driver according to claim 3, is characterized in that,
Above-mentioned housing is formed by sheet metal, and is provided with for the earthy terminal by above-mentioned frame ground at above-mentioned substrate parts, and said external terminal, above-mentioned power supply terminal and above-mentioned earthy terminal form a line.
5. lens driver according to claim 3, is characterized in that,
Be formed with notch part at the side end of above-mentioned substrate parts, have above-mentioned power supply terminal at the partial configuration not being provided with above-mentioned notch part of above-mentioned side end, above-mentioned notch part can configure above-mentioned plate-shaped member with the state making above-mentioned plate-shaped member erect.
6. lens driver according to claim 4, is characterized in that,
Be formed with notch part at the side end of above-mentioned substrate parts, have above-mentioned power supply terminal at the partial configuration not being provided with above-mentioned notch part of above-mentioned side end, above-mentioned notch part can configure above-mentioned plate-shaped member with the state making above-mentioned plate-shaped member erect.
7. the lens driver according to any one in claim 2 to 6, is characterized in that,
Be fixed with above-mentioned Magnetic testi parts in the one side side of above-mentioned plate-shaped member, and the another side of above-mentioned plate-shaped member is fixed on the inner face in the sidewall portion of above-mentioned housing by cementing agent.
8. lens driver according to claim 7, is characterized in that,
Be provided with in the another side side of above-mentioned plate-shaped member the holding section being formed channel-shaped, and be formed with outstanding teat in the above-mentioned sidewall portion of above-mentioned housing downwards, above-mentioned teat engages with above-mentioned holding section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014179113A JP6346830B2 (en) | 2014-09-03 | 2014-09-03 | Lens drive device |
| JP2014-179113 | 2014-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105388584A true CN105388584A (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510552250.0A Pending CN105388584A (en) | 2014-09-03 | 2015-09-01 | Lens drive device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6346830B2 (en) |
| CN (1) | CN105388584A (en) |
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| CN107544123A (en) * | 2016-06-28 | 2018-01-05 | 阿尔卑斯电气株式会社 | Lens driver |
| CN112666774A (en) * | 2020-12-31 | 2021-04-16 | 上海比路电子股份有限公司 | Anti-shake structure, anti-shake system and camera device |
| CN114326010A (en) * | 2018-08-07 | 2022-04-12 | 大阳科技股份有限公司 | Camera module and electronic device |
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| WO2018051729A1 (en) * | 2016-09-16 | 2018-03-22 | アルプス電気株式会社 | Lens driving device and camera module using said lens driving device |
| CN108061509B (en) * | 2016-11-08 | 2023-07-11 | 新思考电机有限公司 | Position detecting device, lens driving device, camera device, and electronic apparatus |
| CN111045180B (en) * | 2018-10-11 | 2025-07-15 | 新思考电机有限公司 | Lens driving device, camera device, and electronic equipment |
| JP2021033080A (en) * | 2019-08-26 | 2021-03-01 | ミツミ電機株式会社 | Lens drive, camera module, and camera mount |
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Also Published As
| Publication number | Publication date |
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| JP2016053628A (en) | 2016-04-14 |
| JP6346830B2 (en) | 2018-06-20 |
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