CN101504481A - Lens apparatus and manufacturing method thereof - Google Patents
Lens apparatus and manufacturing method thereof Download PDFInfo
- Publication number
- CN101504481A CN101504481A CNA2009100061377A CN200910006137A CN101504481A CN 101504481 A CN101504481 A CN 101504481A CN A2009100061377 A CNA2009100061377 A CN A2009100061377A CN 200910006137 A CN200910006137 A CN 200910006137A CN 101504481 A CN101504481 A CN 101504481A
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- lens
- inner peripheral
- peripheral surface
- flange part
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Abstract
The invention provides a lens device capable of miniaturizing lens and irradiating laser to jointing part and a manufacturing method thereof. The lens device comprises a lens (1) made of transparent resin material and a lens barrel (2) for containing the lens (1); wherein the lens (1) comprises a lens surface (10) with optical function a flange part (11) hold on an internal circumferential surface (20a) of the lens barrel (2) formed at periphery of the lens surface (10); the flange part (11) comprises an external circumferential surface (13a) abutted on the internal circumferential surface (20a) of the lens barrel (2) and an internal circumferential surface (13b) facing to the lens surface (10) and abutted on the external circumferential surface (13a); and the internal circumferential surface (13b) is formed to a inclined surface shape to a direction from a side end part of the lens surface (10) to a front side end part of enlarged circumference of the flange part (11), and the external circumferential surface (13a) of the flange part (11) and the internal circumferential surface (20a) of the lens barrel (2) are in laser joint.
Description
Technical field
The present invention relates to a kind of lens are contained in lens devices (lens unit) and the manufacture method thereof that forms in the lens barrel, relate to especially and a kind ofly engage lens devices and the manufacture method thereof that fixed lens and lens barrel form by laser.
Background technology
In the past, the lens as embedding in the camera module etc. can use the lens that formed by resin materials such as COP resins.In order in equipment, to locate fixed lens, keep to constitute lens devices with lens barrel.For this reason, in lens, form flange part, this flange part butt is fixed on the inner peripheral surface of lens barrel by periphery at lens face with optical function, lens barrel and lens is integrated.Though the integrated of lens barrel and lens is adhesively fixed with bonding agent usually, it also is known using the joint of laser instrument.As this lens devices, for example, cited lens devices in the patent documentation 1.
The existing lens devices that engages integrated lens barrel and lens by laser be a kind of top and bottom that make the flange part that on lens, forms with from outstanding teat butt that forms like this of the inside Zhou Fangxiang of the inner peripheral surface of lens barrel and the lens devices that engages from the optical axis direction irradiating laser of lens.In the case, in order to ensure engaging width, the flange part of lens must have the size of a certain degree.Thus, the problem that will exist so-called lens devices to maximize.
Summary of the invention
Carry out the present invention in view of above-mentioned problem, its purpose is, a kind of lens devices and manufacture method thereof that can make the lens miniaturization and can make the laser radiation bonding part really is provided.
In order to solve above-mentioned problem, the lens devices that the present invention is correlated with is made of the material that can see through laser lens that form and the lens barrel that holds these lens, it is characterized in that,
Structure is: said lens comprises lens face with optical function and forms and remain on flange part on the inner peripheral surface of above-mentioned lens barrel at the periphery of this lens face; This flange part comprises outer circumferential surface section on the inner peripheral surface that is connected to above-mentioned lens barrel and opposed and towards the inner peripheral surface portion of said lens face side with this outer circumferential surface section; With this inner peripheral surface portion form from said lens face side end to the front end of above-mentioned flange part and interior week the footpath become the inclined plane type of big direction, and laser engages the outer circumferential surface section of above-mentioned flange part and the inner peripheral surface of lens barrel.
In addition, the lens devices that the present invention is correlated with is characterized in that, structure is: the inner peripheral surface of above-mentioned lens barrel is formed the inclined plane type almost parallel with the inner peripheral surface portion of above-mentioned flange part with the outer circumferential surface section of above-mentioned flange part on being connected to this inner peripheral surface.
And, the lens devices that the present invention is correlated with, it is characterized in that, structure is: the inner peripheral surface portion of above-mentioned flange part have imaginary line not with the angle of inclination of said lens hand-deliver fork, wherein above-mentioned imaginary line is for the normal of this inner peripheral surface portion and engage the position of the inner peripheral surface of the outer circumferential surface section of above-mentioned flange part and lens barrel by laser.
And, further, the manufacture method of the lens devices that the present invention is correlated with, wherein this lens devices lens that be formed by the material that can see through laser and the lens barrel that holds these lens constitute, and the manufacture method of this lens devices is characterised in that,
In said lens, form lens face and in the periphery setting of this lens face and remain on flange part on the inner peripheral surface of above-mentioned lens barrel with optical function; Form outer circumferential surface section on the inner peripheral surface that is connected to above-mentioned lens barrel and opposed and towards the inner peripheral surface portion of said lens face side with this outer circumferential surface section at this flange part; And with this inner peripheral surface portion form from said lens face side end to the front end of above-mentioned flange part and interior week the footpath become the inclined plane type of big direction;
Said lens is contained in the above-mentioned lens barrel, and from respect to the inner peripheral surface portion of above-mentioned flange part vertical direction irradiating laser almost, laser engages the outer circumferential surface section of above-mentioned flange part and the inner peripheral surface of lens barrel.
And the manufacture method of the lens devices that the present invention is correlated with is characterized in that, the inner peripheral surface of above-mentioned lens barrel is formed the inclined plane type almost parallel with the inner peripheral surface portion of above-mentioned flange part with the outer circumferential surface section of above-mentioned flange part on being connected to this inner peripheral surface.
(invention effect)
The lens devices of being correlated with according to the present invention, lens have lens face and flange part; Flange part comprise on the inner peripheral surface that is connected to lens barrel outer circumferential surface section and opposed with outer circumferential surface section, towards the inner peripheral surface portion of lens face side; By inner peripheral surface portion being formed the inclined plane type of the direction that becomes big from lens face side end week footpath in the front end of flange part, the outer circumferential surface section of laser joint flange portion and the inner peripheral surface of lens barrel simultaneously; Just can lens and lens barrel be engaged by side face, though engage the miniaturization that but can realize the footpath direction owing to carry out laser, simultaneously can be from the oblique direction laser vertical with the inner peripheral surface portion of flange part, therefore just can on optical axis direction, not strengthen lens and obtain the sufficient width of heating of laser instrument and can realize the miniaturization of optical axis direction.
In addition, the lens devices of being correlated with according to the present invention by the inner peripheral surface of lens barrel and the outer circumferential surface section of flange part are formed the inclined plane type almost parallel with the inner peripheral surface portion of flange part, just can make the direction of bonding part towards laser, can heat more efficiently.
And, the lens devices of being correlated with according to the present invention, have as the imaginary line of the position of the inner peripheral surface of the normal of inner peripheral surface portion and outer circumferential surface section by laser joint flange portion and lens barrel by the inner peripheral surface portion that makes flange part and not to intersect such angle of inclination, just can make laser with the lens face interference, positively shine the bonding part with lens face.
And further, the manufacture method of the lens devices of being correlated with according to the present invention is by forming lens face and flange part in lens; Form outer circumferential surface section and inner peripheral surface portion at flange part; Simultaneously inner peripheral surface portion is formed the inclined plane type of the direction that becomes big from lens face side end week footpath in the front end of flange part; Lens are contained in the lens barrel, from with respect to the inner peripheral surface portion of flange part vertical direction irradiating laser almost, the outer circumferential surface section of laser joint flange portion and the inner peripheral surface of lens barrel, by side face lens and lens barrel are engaged thus, though engage the miniaturization that but can realize the footpath direction owing to carry out laser, simultaneously can be from the oblique direction laser vertical with the inner peripheral surface portion of flange part, therefore just can on optical axis direction, not strengthen lens and obtain the sufficient width of heating of laser instrument, can realize the miniaturization of the optical axis direction of lens devices.
And, the manufacture method of the lens devices of being correlated with according to the present invention, by the inner peripheral surface of lens barrel and the outer circumferential surface section that is connected to the flange part on this inner peripheral surface are formed the inclined plane type almost parallel with the inner peripheral surface portion of flange part, just can make the direction of bonding part, can heat more efficiently towards laser.
Description of drawings
Fig. 1 is the sectional view of the lens devices of the 1st embodiment.
Fig. 2 is the sectional view of the lens devices of the inner peripheral surface of flange part when not tilting.
Fig. 3 is the sectional view of the lens devices of the 2nd embodiment.
Symbol description:
1 lens, 2 lens barrels, 10 lens faces, 11 flange parts, 13 side face maintaining parts, the 13a outer peripheral face, the 13b inner peripheral surface, 14 teats, 20 weeks are facial, 20a inner peripheral surface, 21 planar portions, 30 junction surfaces.
Embodiment
Explain embodiments of the present invention with reference to accompanying drawing.Figure 1 illustrates the sectional view of the lens devices of present embodiment.Fig. 1 only illustrates right half part in the sectional view of lens devices.As shown in this figure, the lens devices structure of present embodiment is for keeping lens 1 integrated forming with lens barrel 2.
The flange part 11 of lens 1 has the teat 14 that butt remains on all facial 20 the side face maintaining parts 13 and the planar portions 21 that butt remains on lens barrel 2 of lens barrel 2.The outer peripheral face 13a of side face maintaining part 13 is connected on all inner peripheral surface 20a of facial 20 of lens barrel 2.On the other hand, the inner peripheral surface 13b of side face maintaining part 13 and outer peripheral face 13a are opposed and towards lens face 10 sides.
The inner peripheral surface 13b of side face maintaining part 13 forms to be become skewed from the end of lens face 10 sides to the leading section extension of flange part 11.Particularly, form the inclined plane type that becomes big direction from lens face 10 side ends to the footpath of interior week of the front end of flange part 11, inner peripheral surface 13b.Thus, just becoming inner peripheral surface 13b tilts slightly in lens face 10 sides and above in the figure.
All faces 20 of the side face maintaining part 13 of lens 1 and lens barrel 2 engage fixing by junction surface 30.Junction surface 30 engages by laser, becomes the state of side face maintaining part 13 side engagement of the inner peripheral surface 20a in week facial 20 of lens barrel 2 and lens 1, thus, and fixed lens 1 and lens barrel 2.
Be used to form the laser at junction surface 30, along imaginary line 3 irradiations of Fig. 1.Imaginary line 3 is normals of this inner peripheral surface 13b vertical with respect to the inner peripheral surface 13b of the side face maintaining part 13 of lens 1, is the line by the position at junction surface 30.Because imaginary line 3 is normals of inner peripheral surface 13b, thus decide the angle of imaginary line 3 according to the angle of inclination of inner peripheral surface 13b, set inner peripheral surface 13b the angle of inclination so that imaginary line 3 do not intersect with lens face 10.Thus, can be interfere with lens face 10, the side face maintaining part 13 by transparent lens 1 with laser radiation on the inner peripheral surface 20a of the lens barrel 2 that becomes junction surface 30.
Because according to respect to the inner peripheral surface 13b of the side face maintaining part 13 that forms skewed lens 1 mode of incident vertically almost, to lens devices with skewed irradiating laser, so can be suppressed at bottom line because of the side face maintaining part 13 of laser incident lens 1, the loss that reflection produces, the inner peripheral surface 20a that can positively heat lens barrel 2 makes its fusing.For example, establish lens barrel 2 and be polycarbonate, lens 1 are acryl resin, and the irradiation by laser just can make their bonding joints.
In order to make this lens devices, form lens 1 by resin forming in advance with lens face 10 and flange part 11, and form lens barrel 2 in order to hold lens 1, lens 1 are contained in the lens barrel 2, by becoming almost imaginary line 3 irradiating lasers of vertical direction along the inner peripheral surface 13b with respect to flange part 11, the outer peripheral face 13a of laser joint flange portion 11 and the inner peripheral surface 20a of lens barrel 2 form junction surface 30.Thus, make lens 1 and lens barrel 2 integrated, finish the lens devices of present embodiment.
Thus,, just can on the direction of footpath, not increase lens 1, positively engage, can realize the miniaturization of the footpath direction of lens devices with lens barrel 2 owing to lens barrel 2 is engaged with lens 1 laser by side face.
The sectional view of the lens devices under the situation that the inner peripheral surface 13b of flange part shown in Fig. 2 11 does not tilt.As shown in this figure, under the situation that the inner peripheral surface 13b of flange part 11 does not tilt, just become by the direction vertical, i.e. the direction irradiating laser parallel with the footpath direction of lens 1 with respect to inner peripheral surface 13b.In the case,, just need and keep its lens barrel 2, will hinder the slimming of lens devices by the long formation flange part 11 of optical axis direction in order to obtain the width of heating of laser fully.Lens devices of the present invention forms skewed by the inner peripheral surface 13b with flange part 11, just can be from the direction irradiating laser of relative lens devices inclination, even if the flange part 11 and the lens barrel 2 of lens 1 owing on optical axis direction, do not extend, also can obtain sufficient width of heating, thus can realize the optical axis direction of lens devices miniaturization, be slimming.
Then, the 2nd embodiment of the present invention is described.The sectional view of the lens devices of present embodiment has been shown among Fig. 3.The structure of the lens devices of present embodiment, since roughly the same with the lens devices of the 1st embodiment, so omit the explanation of this identical point.
As shown in Figure 3, the outer peripheral face 13a with the side face maintaining part 13 of lens 1 forms parallel such inclined plane type with the inner peripheral surface 13b of side face maintaining part 13.In addition, the inner peripheral surface 20a with the lens barrel 2 of the outer peripheral face 13a butt of side face maintaining part 13 also forms parallel such inclined plane type with the inner peripheral surface 13b of side face maintaining part 13.The imaginary line 3 of the direction of expression laser radiation is identical with the 1st embodiment.
Have such structure shown in Figure 3 by the lens devices that makes present embodiment, because junction surface 30 becomes almost vertical with respect to laser, thus can reduce the reflection of the laser at junction surface 30, can be more efficiently, engage by LASER HEATING.
Though embodiments of the present invention have been described hereinbefore, but of the present invention being suitable for is not limited to these embodiments, even if beyond the lens material of transparent resin, if the lens material that laser is seen through, then can in the scope of the thought of this technology, carry out various being suitable for.For example, in these embodiments,, also can be suitable for the present invention even if hold the situation of multi-disc lens 1 in the lens barrel 2 though show the situation of in lens barrel 2, holding 1 lens 1.
Claims (5)
1, a kind of lens devices is made of the material that can see through laser lens that form and the lens barrel that holds these lens, wherein,
Said lens comprises lens face with optical function and forms and remain on flange part on the inner peripheral surface of above-mentioned lens barrel at the periphery of this lens face; This flange part comprises outer circumferential surface section on the inner peripheral surface that is connected to above-mentioned lens barrel and opposed and towards the inner peripheral surface portion of said lens face side with this outer circumferential surface section; This inner peripheral surface portion form from said lens face side end to the front end of above-mentioned flange part and interior week the footpath become the inclined plane type of big direction, and laser engages the outer circumferential surface section of above-mentioned flange part and the inner peripheral surface of lens barrel.
2, lens devices according to claim 1 is characterized in that,
The inner peripheral surface of above-mentioned lens barrel forms the inclined plane type almost parallel with the inner peripheral surface portion of above-mentioned flange part with the outer circumferential surface section of above-mentioned flange part on being connected to this inner peripheral surface.
3, lens devices according to claim 1 is characterized in that,
The inner peripheral surface portion of above-mentioned flange part have imaginary line not with the angle of inclination of said lens hand-deliver fork; Wherein, above-mentioned imaginary line is for the normal of this inner peripheral surface portion and engage the position of the inner peripheral surface of the outer circumferential surface section of above-mentioned flange part and lens barrel by laser.
4, a kind of manufacture method of lens devices, this lens devices is made of the material that can see through laser lens that form and the lens barrel that holds these lens, wherein,
In said lens, form lens face and in the periphery setting of this lens face and remain on flange part on the inner peripheral surface of above-mentioned lens barrel with optical function; At this flange part, form outer circumferential surface section on the inner peripheral surface be connected to above-mentioned lens barrel and opposed and towards the inner peripheral surface portion of said lens face side with this outer circumferential surface section; And with this inner peripheral surface portion form from said lens face side end to the front end of above-mentioned flange part and interior week the footpath become the inclined plane type of big direction;
Said lens is contained in the above-mentioned lens barrel, and from respect to the inner peripheral surface portion of above-mentioned flange part vertical direction irradiating laser almost, laser engages the outer circumferential surface section of above-mentioned flange part and the inner peripheral surface of lens barrel.
5, the manufacture method of lens devices according to claim 4 is characterized in that,
The inner peripheral surface of above-mentioned lens barrel is formed the inclined plane type almost parallel with the inner peripheral surface portion of above-mentioned flange part with the outer circumferential surface section of above-mentioned flange part on being connected to this inner peripheral surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008025862 | 2008-02-06 | ||
| JP2008025862A JP2009186699A (en) | 2008-02-06 | 2008-02-06 | Lens unit and method of manufacturing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101504481A true CN101504481A (en) | 2009-08-12 |
Family
ID=40976773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100061377A Pending CN101504481A (en) | 2008-02-06 | 2009-02-03 | Lens apparatus and manufacturing method thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2009186699A (en) |
| CN (1) | CN101504481A (en) |
| TW (1) | TW200942893A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073848A (en) * | 2016-03-29 | 2018-12-21 | 富士胶片株式会社 | lens unit |
| CN114008380A (en) * | 2019-06-21 | 2022-02-01 | 株式会社小糸制作所 | Vehicle headlamp |
| CN114509852A (en) * | 2020-10-28 | 2022-05-17 | 三星电机株式会社 | Camera module |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI453485B (en) * | 2012-04-03 | 2014-09-21 | Largan Precision Co Ltd | An optical lens assembly and a laser welding method used for the same |
| CN104678463A (en) | 2013-11-28 | 2015-06-03 | 玉晶光电(厦门)有限公司 | Optical lens, mold for manufacturing lens and manufacturing method |
| WO2016084390A1 (en) * | 2014-11-27 | 2016-06-02 | 京セラ株式会社 | Lens, lens unit, and imaging device |
| JP2022091342A (en) * | 2020-12-09 | 2022-06-21 | 株式会社小糸製作所 | Lens structure |
-
2008
- 2008-02-06 JP JP2008025862A patent/JP2009186699A/en not_active Withdrawn
- 2008-12-31 TW TW97151717A patent/TW200942893A/en unknown
-
2009
- 2009-02-03 CN CNA2009100061377A patent/CN101504481A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073848A (en) * | 2016-03-29 | 2018-12-21 | 富士胶片株式会社 | lens unit |
| CN114008380A (en) * | 2019-06-21 | 2022-02-01 | 株式会社小糸制作所 | Vehicle headlamp |
| CN114509852A (en) * | 2020-10-28 | 2022-05-17 | 三星电机株式会社 | Camera module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009186699A (en) | 2009-08-20 |
| TW200942893A (en) | 2009-10-16 |
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Open date: 20090812 |