CN105980903A - Optical element unit, and manufacturing method for optical element unit - Google Patents
Optical element unit, and manufacturing method for optical element unit Download PDFInfo
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- CN105980903A CN105980903A CN201580005694.0A CN201580005694A CN105980903A CN 105980903 A CN105980903 A CN 105980903A CN 201580005694 A CN201580005694 A CN 201580005694A CN 105980903 A CN105980903 A CN 105980903A
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- optical element
- optical
- component package
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- fine shape
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0075—Arrays characterized by non-optical structures, e.g. having integrated holding or alignment means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
Provided are an optical element unit and a manufacturing method for an optical element unit, with which highly accurate assembly of an optical element may be achieved, while minimizing cost. This optical element unit comprises a first mating portion of an optical element and a second mating portion of another component, which are mated, the first mating portion and/or the second mating portion being provided with a finely-shaped portion that protrudes in the orthogonal direction to the optical axis of the optical element. The extent of protrusion of the finely-shaped portion in the direction of a plane intersecting the optical axis of the optical element increases at greater mating depth of the optical element and the other component. The mated dimension of either the first mating portion or the second mating portion is greater than the mating dimension of either the second mating portion or the first mating portion, and less than the sum of the mating dimension and the maximum extent of protrusion of the finely-shaped portion.
Description
Technical field
The present invention relates to the manufacture method of optical component package and optical component package.
Background technology
In recent years, the slim band with smart mobile phone, tablet-type personal computer etc. as representative is taken the photograph
As the portable terminal device of device is quickly popularized.But, such portable terminal device carries
In camera head, it is desirable to there is high-resolution and small-sized.Accordingly, as at such shooting dress
Put the imaging lens system of middle use, it is naturally required that small-sized and excellent optical characteristics, but with newly make the country prosperous
It is nearest that the competition of the manufacturer of family intensifies, and is also strict with the propelling of cost degradation.
But, in the case of such as assembling multiple lens, optical in order to play in design
Can, need the plain shaft precision making each lens the most consistent.Herein, in order to make the light of each lens
Axle is consistent, has while utilizing inspection video camera etc. to detect the alignment mark additional to lens
Blending lens method each other, but the cost needed for there is assembling equipment uprises and in blending
Cost time such problem.As being likely to produce between other parts such as lens and picture frame
Problem.
In contrast, in patent documentation 1, disclose following technology: divide for a pair lens
Pyramidal recess centered by optical axis and protuberance are not set, and make recess and protuberance be fitted together to,
So that the optical axis blending of a pair lens.
Patent documentation 1: Japanese Unexamined Patent Publication 2002-196211 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2005-258329 publication
Summary of the invention
But, in the technology of patent documentation 1, exist and formed recessed well owing to being difficult to precision
Portion and protuberance and the problem that causes.Specifically, there are the following problems: if recess is the most convex
Portion is excessive, then form gap between when being combined with and produce bias, on the other hand,
If recess opposite lug is too small, recess and protuberance can not be in applicable positions the most in the direction of the optical axis
Put chimeric, it is impossible to by lenticular spacing from being maintained design load.
On the other hand, in assemble method disclosed in patent documentation 2, embedding by recess and protuberance
Conjunction portion shape is set to straight, it is possible to avoid recess and protuberance being in the direction of the optical axis not suitable for
Position be fitted together to, but in the same manner as patent documentation 1, there are the following problems: if recess is relative
Protuberance is excessive, then form gap between when being combined with and produce bias.It addition, also
There is following worry: if recess opposite lug is too small, then owing to producing when being forcibly fitted together to
Internal stress, deform upon at optical surface.Lens diameter is the biggest, and above problem is the most notable,
Its countermeasure becomes important.
The present invention is the problem in view of above-mentioned conventional art and completes, and its object is to provide one
Plant the optical element of the high-precision assembling that can realize optical element while suppression cost
Assembly and the manufacture method of optical component package.
At least one in achieve these goals, reflects the optics of the one side of the present invention
Component element is by chimeric for the 2nd fitting portion of the 1st fitting portion of optical element and other parts
Becoming, described optical component package is characterised by,
At least one party in described 1st fitting portion and described 2nd fitting portion, is provided with along institute
State the fine shape portion that the optical axis orthogonal direction of optical element is prominent,
Described fine shape portion is along with described optical element and the chimeric degree of depth of other parts described
Deepening, the overhang in the direction, face intersected with the optical axis of described optical element increases,
Described 1st fitting portion or described 2nd fitting portion be fitted size ratio the described 2nd
The chimeric size of fitting portion or described 1st fitting portion is big, and described in comparison, chimeric size adds
The maximum overhang in described fine shape portion and the size that obtains is little.
At least one in achieve these goals, reflects another of one side of the present invention
Optical component package is to be fitted together to and make the 1st of described optical element by optical element and other parts
2nd reference figure portion of reference figure portion and other parts described abuts and carries out described optics unit
The optical component package of the location of the optical axis orthogonal direction of part, the feature of described optical component package
It is,
In the part in addition to described 1st reference figure portion of described optical element and described
At least one party in the part in addition to described 2nd reference figure portion of other parts, is arranged
Have along the prominent fine shape portion of the optical axis orthogonal direction of described optical element,
Described fine shape portion is along with described optical element and the chimeric degree of depth of other parts described
Deepening, the overhang in the direction, face intersected with the optical axis of described optical element increases,
Described optical element or other parts described be fitted size than other parts described
Or the chimeric size of described optical element is big, and chimeric size described in comparison is plus described fine
The maximum overhang of shape portion and the size that obtains is little.
At least one in achieve these goals, reflects the optics of the one side of the present invention
The manufacture method of component element is embedding by the 2nd of the 1st fitting portion of optical element and other parts the
The manufacture method of the optical component package that conjunction portion is fitted together to, it is characterised in that
At least one party in described 1st fitting portion and described 2nd fitting portion, is provided with along institute
State the fine shape portion that the optical axis orthogonal direction of optical element is prominent,
Described fine shape portion is along with described optical element and the chimeric degree of depth of other parts described
Deepening, the overhang in the direction, face intersected with the optical axis of described optical element increases,
Described 1st fitting portion or described 2nd fitting portion be fitted size ratio the described 2nd
The chimeric size of fitting portion or described 1st fitting portion is big, and described in comparison, chimeric size adds
The maximum overhang in described fine shape portion and the size that obtains is little,
When being fitted together to described 1st fitting portion and described 2 fitting portion, by described fine shape
Shape portion carries out the location of the optical axis orthogonal direction of described optical element and other parts described.
At least one in achieve these goals, reflects another of one side of the present invention
The manufacture method of optical component package is to be fitted together to optical element and other parts and make described optics
1st reference figure portion of element and the 2nd reference figure portion of other parts described abut and carry out
The manufacture method of the optical component package of the location of the optical axis orthogonal direction of described optical element, its
It is characterised by,
In the part in addition to described 1st reference figure portion of described optical element and described
At least one party in the part in addition to described 2nd reference figure portion of other parts, is arranged
Along the fine shape portion that the optical axis orthogonal direction of described optical element is prominent,
Described fine shape portion is along with described optical element and the chimeric degree of depth of other parts described
Deepening, the overhang in the direction, face intersected with the optical axis of described optical element increases,
Described optical element or other parts described be fitted size than other parts described
Or the chimeric size of described optical element is big, and chimeric size described in comparison is plus described fine
The maximum overhang of shape portion and the size that obtains is little,
When making described 1st reference figure portion and described 2nd reference figure portion abuts, by institute
State the optical axis orthogonal direction of the fine shape portion described optical element of suppression and other parts described
Loosen.
In accordance with the invention it is possible to provide the height that can realize optical element while suppression cost
The optical component package of the assembling of precision and the manufacture method of optical component package.
Accompanying drawing explanation
Fig. 1 is the section of the 1st lens 10 of the optical component package constituting the 1st embodiment
Figure.
Fig. 2 is the axonometric chart of the 1st lens 10.
Fig. 3 is the axonometric chart illustrating mould MD.
Fig. 4 is the optical component package 30 being made up of the 1st lens the 10 and the 2nd lens 20
Profile.
Fig. 5 is the figure being cut off by the structure V-V line of Fig. 4 and observing in the direction of the arrow.
Fig. 6 is the profile of the optical component package 30 ' of comparative example.
Fig. 7 is the figure being cut off by the structure VII-VII line of Fig. 6 and observing in the direction of the arrow.
Fig. 8 is cuing open of the camera head 40 of the optical component package 30 assembling present embodiment
Face figure.
Fig. 9 is the profile of the camera head 40 of variation.
Figure 10 is the figure of the camera head schematically illustrating the 2nd embodiment.
Figure 11 is the profile of the camera head of present embodiment.
Figure 12 is the figure being cut off by the structure XII-XII line of Figure 11 and observing in the direction of the arrow.
Figure 13 (a) is putting of 1 block portion Lc1 representing with arrow XIIIA in fig. 12
Big figure, illustrates with the state before assembling.Figure 13 (b) is to observe along arrow XIIIB direction
The figure of the block portion Lc1 shown in Figure 13 (a).
Figure 14 is the profile as Figure 12 of the camera head of variation.
Figure 15 is the figure being cut off by the structure XV-XV line of Figure 14 and observing in the direction of the arrow.
Figure 16 is the profile as Figure 12 of the camera head of other variation.
(symbol description)
1: image processing part；1a: image combining unit；1b: image correcting section；2: operational part；
3: memorizer；10: the 1 lens；11: lens section；12: flange part；13: fitting portion；
14: fine shape portion；20: the 2 lens；21: lens section；22: flange part；23: embedding
Conjunction portion；30: optical component package；40: camera head；41: picture frame；41a: fine shape
Shape portion；41b: sidewall；41c: end wall；41d: fine shape portion；42: solid-state image pickup unit
Part；CG: cover glass；DU: camera head；F:IR edge filter；HLD: picture frame；
HLDa: object sidewall；HLDb: surrounding wall；HLDd: recess；LA1: the 1 array
Lens；La1: little eyelens；Lb1: rectangular-shaped plate portion；Lc1: block portion；Ld1: fine
Shape portion；LA2: the 2 array lens；Lb2: rectangular-shaped plate portion；LH: compound eye optical system
System；LU: camera assembly；MD: mould；MD1: transfer surface；MD2: transfer surface；
MD3: transfer surface；MD3a: recess；ML: ommatidium composograph.
Detailed description of the invention
Hereinafter, the optical component package of the 1st embodiment of the present invention is described.Fig. 1 is to constitute
The profile of the 1st lens 10 of optical component package, Fig. 2 is the axonometric chart of the 1st lens 10.
1st lens 10 have: there is the lens section 11 of optical surface, around lens section 11 to put
Penetrate shape and with tabular extension flange part 12 and axis is consistent with the optical axis of lens section 11 and
Fitting portion from the short tubular extended in the direction of the optical axis between lens section 11 and flange part 12
(the 1st fitting portion) 13.In the periphery of fitting portion 13, equally spaced define 8 fine
Shape portion 14.
As in figure 2 it is shown, each fine shape portion 14 has will have the axis parallel with optical axis
The same shape that circular cone partly cuts, is formed as along with the expanding shape towards flange part 12 side
Shape.The axis of circular cone can also be configured to helical form.It addition, also may be used in fine shape portion 14
To be triangular pyramidal shape, as long as along with the overhang along optical axis direction close to flange part 12
The shape increased, then can be formed as arbitrary shape.
Fig. 1, the mould MD as shown in Figure 3 of the 1st lens 10 shown in 2 are formed.Mould
MD has: forms the transfer surface MD1 of the optical surface of lens section 11, transfer flange part 12
The transfer surface MD2 in face and the transfer surface MD3 of the outer peripheral face of transfer fitting portion 13.Turning
The inner circumferential of print face MD3, equally spaced defines 8 recess MD3a.Recess MD3a with
Fine shape portion 14 is correspondingly formed the channel-shaped for partly being cut by circular cone, be formed as front end be in from
The optical axis direction end of fitting portion 13 is the position of predetermined distance to flange part 12 lateral deviation.
After the mould MD and not shown mould making Fig. 3 carries out matched moulds, internally
Cavity injects thermoplastic resin and makes it solidify, and it is possible to form the 1st lens 10.Now,
The fine shape portion 14 making recess MD3a transfer be by with the optics forming lens section 11
The mold component molding simultaneously that the mold component in face is identical, so being processed accurately.
Fig. 4 is the optical component package 30 being made up of the 1st lens the 10 and the 2nd lens 20
Profile.Fig. 5 is the figure being cut off by the structure V-V line of Fig. 4 and observing in the direction of the arrow.
In the diagram, the 2nd lens 20 have: have the lens section 21 of optical surface, at lens section 21
Surrounding with radial and flange part 22 with tabular extension and axis and lens section 21
The fitting portion of the short tubular that optical axis unanimously and extends in the direction of the optical axis from the periphery of flange part 22
(the 2nd fitting portion) 23.It addition, the 1st lens 10 fitting portion 13 end face and and its
Between the face of the flange part 22 of the 2nd opposed lens 20, it is configured with the circle with circular open
The light obstructing member 25 of shape tabular.
As it is shown in figure 5, internal diameter φ 2 (being fitted size) ratio the 1st lens 10 of fitting portion 23
The external diameter φ 1 (chimeric size) of fitting portion 13 big, but than the circumcircle in fine shape portion 14
φ 3 (size that chimeric size is obtained plus the maximum overhang of the radial direction in fine shape portion)
Little.Herein, maximum overhang δ (Fig. 1) of the radial direction in fine shape portion 14 is 0.1mm journey
Degree, is designed to the internal diameter φ 2 of relative the fitting portion 23 and circumcircle φ 3 in fine shape portion 14
1/2 (gap) of difference, its safety coefficient is less than 1.
It addition, " safety coefficient " represents with the ratio of raw-material bursting stress with allowable stress, it it is table
Show the ratio of safe degree.Even if allowable stress is that material effects also will not produce destruction
The higher limit of stress, bursting stress is the stress that this material causes destruction.If safety coefficient is less than
1, then the situation causing the plastic deformation of component when assembling is more.
The manufacture method of optical component package 30 is described.At the bearing surface to optical axis vertical direction
Under the state being coated with bonding agent, make the fitting portion 13 of the 1st lens 10 and be contained within shading structure
The fitting portion 23 of the 2nd lens 20 of part 25 face each other face and close along optical axis direction,
The end of fitting portion 13,23 has gap each other, so being smoothly inserted into midway.It
After, fine shape portion 14 abuts to the inner circumferential of the fitting portion 23 of the 2nd lens 20, is squeezed
Press and make its plastic deformation.Now, there is also due to little defect etc. and in fine shape portion 14
The situation of middle generation fine grained chippings, but enter into periphery bonding being coated in the 1st fitting portion 13
Agent such that it is able to suppress the attachment to optical surface etc..The optical axis direction end face of fitting portion 23 supports
Receive the opposed faces of the flange part 12 of the 1st lens 10, thus complete to assemble.Additionally, it is possible to
To coat bonding agent afterwards chimeric.
Fig. 6 is the profile of the optical component package 30 ' of comparative example.Fig. 7 is by the knot of Fig. 6
The figure that structure VII-VII line cuts off and observes in the direction of the arrow.The of optical component package 30'
1 lens 10' is not provided with fine shape portion, in addition, size and dimension all with Fig. 1,2
1st lens 10 are identical.
In optical component package 30' of comparative example, need to make mutually chimeric fitting portion 13,
The diameter accuracy of 23 is the most equal, but above-mentioned diameter is likely to be due to molding tolerances and changes.?
In the case of the external diameter of fitting portion 13 is big relative to the internal diameter of fitting portion 23, fitting portion 13,23
Be fitted into press-in, cause lens section 11,21 so existing due to the stress that occurred
The worry of optical surface deformation.On the other hand, at the external diameter of fitting portion 13 relative to fitting portion 23
Internal diameter little in the case of, as it is shown in fig. 7, in the 1st lens the 10 and the 2nd lens 20 produce
The light shaft offset (eccentric) of 1/2 amount of raw diameter difference, it is impossible to play original optical property.
In contrast, according to present embodiment, the external diameter of fitting portion 13 is relative to fitting portion 23
Internal diameter little, it is possible to do not carry out with molding tolerances being pressed into and the most chimeric, and
And fitting portion 23 is fitted together to into from the cone front in fine shape portion 14 such that it is able to utilize
Its guiding function, makes axis (optical axises of the 1st lens 10) and the fitting portion 23 of fitting portion 13
Axis (optical axises of the 2nd lens 20) precision the most consistent.And then, by continue into
Row is chimeric, and the radial outer side fitting portion 23 in fine shape portion 14 extrudes, but now, with
8 fine shape portions 14 of one shape are extruded equably, thus precision guarantees embedding well
The axis in conjunction portion 13 and the axiality of the axis of fitting portion 23.Even if it addition, fine shape portion
14 are extruded, and its impact also stays in the scope of local, has influence on the optics of the 1st lens 10
The worry in face is few, it is possible to maintain the optical property of the 1st lens 10.Alternatively, it is also possible to
Replace the fine shape portion 14 of the 1st lens 10, in the fitting portion 23 of the 2nd lens 20
Side face arranges fine shape portion.
Fig. 8 is cuing open of the camera head 40 of the optical component package 30 assembling present embodiment
Face figure.In fig. 8, camera head 40 is will to be fitted together at the outer peripheral face of optical component package 30
The end face of picture frame 41 of tubular bond to be mounted with on the substrate 43 of solid-state imager 42
?.By the 1st lens the 10 and the 2nd lens 20 of optical component package 30, subject
As being imaged in the imaging surface of camera head 40, the picture signal after light-to-current inversion exports outward
Portion.
Fig. 9 is the profile of the camera head 40 of variation.In fig .9, at camera head
Inner circumferential near end wall 41c in the sidewall 41b of the picture frame 41 of 40, equally spaced defines 8
The fine shape portion 41a of the shape as individual and above-mentioned fine shape portion 14.It addition, sidewall
The overhang of the internal diameter of 41b, the external diameter of optical component package 30 and fine shape portion 41a
Relation is also identical with above-mentioned embodiment.
End wall 41c is being centrally formed opening aperture 41d.Therefore, in order to ensure camera head
The performance of 40, it is important that make in optical axis and the opening aperture 41d of optical component package 30
Mandrel is consistent.
According to this variation, if assembling optical element assembly 30 in picture frame 41, then the 1
The external diameter of lens 10 is fitted together to into from the cone front of fine shape portion 41d, it is possible to
Central shaft and the optical axis of optical component package 30 of opening aperture 41d is made by its guiding function
Precision is the most consistent.And then, it is fitted together to by proceeding, the radial direction of fine shape portion 41d
Medial surface is extruded by the 1st lens 10, but now, 8 fine shape portion 41d of same shape
Extruded equably, thus precision is guaranteed central shaft and the optics unit of opening aperture 41d well
The axiality of the optical axis of part assembly 30.
It follows that the camera head of explanation the 2nd embodiment.In recent years, use is developed such as
The compound eye imaging device of lower technology: make multiple ommatidium optical system that optical axis is configured differently
System, forms multiple object picture, to the figure corresponding with each object picture in the imaging surface of imaging apparatus
Image signal carries out image procossing, thus synthesizes 1 image and rebuild.Take the photograph as such compound eye
As a type of device, there is the compound eye imaging device employing following super resolution technology: pass through
Multiple ommatidium optical systems, split camera watch region, according to obtained multiple low pixel image,
1 high pixel image processing is rebuild by image procossing.If use super resolution technology, then can
Reduce at ommatidium optical system each middle lens number used, as a result, it is possible to provide and exist
It is capable of obtaining high-resolution figure than while existing optical system more significantly miniaturization
The compound eye imaging device of picture.
But, in the situation by the multi-disc lens forming ommatidium optical system along optical axis direction stacking
Under, the array lens of multiple lens (little eyelens) has been formed for every layer of use.
The array lens having formed multiple lens has the advantage that except reducing array
Beyond the aberrations in property of each lens in lens, additionally it is possible to reduce and embed number of times, formation number of times also
Reduce cost.Herein, be set to optical component package by stacking the compound eye optical system of array lens
System and picture frame are constituted.
Hereinafter, illustrate to employ the camera head etc. of compound eye optical system.Compound eye optical system is
It is configured with the optical system of multiple lens combination, generally quilt for 1 imaging apparatus array-like
It is divided into each lens combination and carries out the super-resolution type of shooting of identical visual field and each lens combination
Carry out the visual field segmentation type of the shooting of different visual fields.In the present embodiment, illustrate in order to
Multiple pictures different for visual field are connected together and export 1 composograph, carry out visual field different
The compound eye optical system of the visual field segmentation type of multiple imagings.
Figure 10 schematically illustrates the camera head of the 2nd embodiment.As shown in Figure 10, shooting
Device DU has camera assembly LU, image processing part 1, operational part 2, memorizer 3 etc..
It addition, camera assembly LU has 1 imaging apparatus SR and enters for this imaging apparatus SR
Compound eye optical system LH of multiple imagings that row visual field is different.As imaging apparatus SR, use
Such as there are the CCD type image sensor of multiple pixel, CMOS-type image sensor etc. solid
Body imaging apparatus.To be formed on the sensitive surface SS of the photoelectric conversion department as imaging apparatus SR
The mode of the optical image of subject, is provided with compound eye optical system LH, so by compound eye optical
The optical image that system LH is formed is transformed to the signal of telecommunication by imaging apparatus SR.
Figure 11 is the profile of the camera head of present embodiment.Figure 12 is by the knot of Figure 11
The figure that structure XII-XII line cuts off and observes (from image side) in the direction of the arrow.In fig. 11,
Compound eye optical system LH includes successively that from object side the 1st array lens LA1, the 2nd array are saturating
Mirror LA2, is held in picture frame HLD.In picture frame HLD, (cut open as the 2nd fitting portion
The recess that face is rectangular-shaped), there is the surrounding wall HLDb of square tube shape, the thing of surrounding wall HLDb
Side end is by object sidewall HLDa apolipsis, and then defines multiple opening at object sidewall HLDa
Mouth aperture S.
1st array lens LA1 is to make multiple little eyelens La1 accordingly with opening aperture S
Form with the rectangular-shaped plate portion Lb1 that is provided with little eyelens La1, the 2nd
Array lens LA2 is to make multiple little eyelens La2 accordingly with each little eyelens La1 and set
Put what the rectangular-shaped plate portion Lb2 of little eyelens La2 formed.Little eyelens
Quantity is equal to the object picture (referred to as ommatidium picture) formed in imaging surface SS of imaging apparatus SR
Quantity (herein 4 × 4).That is, passed through the little eyelens La1 along optical axis direction stacking,
The light of La2 forms 1 picture respectively in imaging surface SS.2nd array lens LA2's is little
It is convex shape that the image side surface S4 of eyelens La2 has periphery.It addition, with from the 1st gust
The outer rim of row lens LA1 is opposed to along the inner peripheral surface of the rectangle frame portion Lf1 that optical axis direction highlights,
The 2nd array lens LA2 along optical axis direction with rectangular-shaped prominent flange part Lb2 outside
In week, define the fine shape portion Lc2 as the structure shown in Fig. 1 at predetermined intervals.
And then, in the 1st array lens LA1, as shown in figure 12, in rectangular-shaped plate portion
The limit of top in Figure 12 in each limit (is set to the 1st outer edge, presses from this by each limit of Lb1
Clockwise each limit is set to the 2nd outer edge, the 3rd outer edge, the 4th outer edge), respectively
Define two rectangular-shaped block portion Lc1 as the 1st fitting portion.
Figure 13 (a) is putting of 1 block portion Lc1 representing with arrow XIIIA in fig. 12
Big figure, illustrates with the state before assembling.Figure 13 (b) is to observe in arrow XIIIB direction
The figure of the block portion Lc1 shown in Figure 13 (a).In fig. 13, at the lateral surface of block portion Lc1,
Define 2 fine shape portion Ld1.It addition, the overhang Δ of fine shape portion Ld1 is compared
In the position of surrounding wall HLDb of the state representation centered by by picture frame HLD (at Figure 13
It is represented by dashed line in (a)) highlight laterally, its safety coefficient is less than 1.
As shown in Figure 13 (b), each fine shape portion Ld1 has identical triangular pyramidal shape,
This triangular pyramidal shape has the axis parallel with the optical axis of little eyelens La1, each fine shape portion
Ld1 becomes most advanced and sophisticated thin in fig. 11 along with the object sidewall HLDa side towards picture frame HLD
Shape.Block portion Lc1 and fine shape portion Ld1 preferably by with form little eyelens La1's
The mold component molding that the mold component (not shown) of object side S1 is identical, more preferably with
Shi Jiagong.Additionally, it is preferred that be made that fine shape portion Ld1 can allow caused by molding shrinkage is embedding
Close dimensional discrepancy.Wherein, according to the relation of interval error, need molding tolerances ± 3 μm degree
Permission.
In fig. 11, at the object sidewall HLDa and the 1st array lens LA1 of picture frame HLD
Between define the 1st shading aperture SH1, saturating at the 1st array lens LA1 and the 2nd array
The 2nd shading aperture SH2 is defined between mirror LA2, in the image side of the 2nd array lens LA2,
Define the 3rd shading aperture SH3 with being adjacent.1st shading aperture SH1, the 2nd shading
Aperture SH2, the 3rd shading aperture SH3 are made up of the sheet material of 20 μm～the SUS of 100 μm.
Between the 2nd array lens LA2 and imaging apparatus SR, from object side, cut according to IR
The only order of the cover glass CG of imaging surface SS of optical filter F and covering imaging apparatus SR,
It is configured with the cover glass of imaging surface SS of IR edge filter F and covering imaging apparatus SR
CG.In the object side of the IR edge filter F as optical component, it is close to form shading
Film, this becomes the 4th shading aperture SH4.Alternatively, it is also possible to omission the 3rd shading aperture SH3,
Some in 4th shading aperture SH4.Each shading aperture SH1～SH4 has and each ommatidium
The peristome of each correspondence of lens.Can also be in the week of the image side surface S4 of little eyelens La2
Enclose, be close on cover glass CG form photomask and make it as photomask function.
As shown in Figure 10, image processing part 1 has image combining unit 1a and image correcting section
1b.Image combining unit 1a can will pass through compound eye image pickup optical system LH at imaging apparatus SR
Imaging surface SS on formed with multiple ommatidiums as letter corresponding for Zn (n=1,2,3 ...)
Number it is combined and exports 1 ommatidium composograph ML.Now, image correcting section 1b is carried out
Reversion process, distortion process, Shadows Processing, joining process etc..And then, as required, also
Carry out distortion correction.Ommatidium composograph ML is compressed by operational part 2 and is stored in storage
Device 3.
The manufacture method of optical component package is described.In the present embodiment, the 1st array lens
LA1 and the 2nd array lens LA2 is stacked along optical axis direction by molding in advance, is formed multiple
Optics of the eye system LH.Now, make the 1st array lens LA1 rectangular box-like portion Lf1 and
When the flange part Lb2 of the 2nd array lens LA2 has been fitted together to, between fine shape portion
Lc2 plastic deformation, thus in the same manner as above-mentioned embodiment, each little eyelens La1, La2
Optical axis consistent.
And then, the inboard in the surrounding wall HLDb of picture frame HLD is coated with the shape of bonding agent
Under state, with the posture shown in Figure 11, compound eye optical system LH is inserted into along optical axis direction
Time in picture frame HLD, at the fine shape portion Ld1 being arranged around of the 1st array lens LA1
Before abutting to the surrounding wall HLDb of picture frame HLD, insert and successfully carried out.Afterwards,
The top of fine shape portion Ld1 abuts to the inner peripheral surface of the surrounding wall HLDb of picture frame HLD,
Being extruded such as 15～20 μm degree and plastic deformation, the height after plastic deformation becomes
30 μm degree.Now, there is also and produce in fine shape portion Ld1 due to little defect etc.
The situation of fine grained chippings, but enter into the bonding agent being coated on picture frame HLD such that it is able to press down
Make the attachment to little eyelens etc..The object side of the plate portion Lb1 of the 1st array lens LA1
Abut to the opposed faces of the object sidewall HLDa of picture frame HLD, thus complete to assemble.It addition,
Bonding agent can also be coated afterwards chimeric.
According to present embodiment, the top of fine shape portion Ld1 is extruded by the 1st lens 10,
But now, it is formed at the fine shape portion Ld1 on 4 limits of the 1st array lens LA1 by all
Etc. ground extruding, thus precision guarantees the central shaft of each opening aperture S and little eyelens well
The axiality of the optical axis of La1, La2.
Figure 14 is the profile as Figure 12 of the camera head of variation.Figure 15 be by
The figure that the structure XV-XV line of Figure 14 cuts off and observes in the direction of the arrow.In this variation,
For above-mentioned embodiment, it is centrally formed circular cone in the object side of the 1st array lens LA1
Projection Le1 of shape, correspondingly in the central shape of object sidewall HLDa of picture frame HLD
Become cone shape recess HLDd.It addition, the 1st array lens LA1 except ommatidium saturating
Object side beyond mirror La1 forms photomask, replaces shading aperture.Structure beyond it with
Above-mentioned embodiment is identical.
When picture frame HLD is assembled the 1st array lens LA1, only by fine shape portion
The plastic deformation of Ld1, it is possible to picture frame HLD relatively produces around the 1st array lens LA1's
The relative offset at center.In contrast, according to this variation, to cone shape projection
Le1 is fitted together to cone shape recess HLDd, and the 1st array lens LA1 and picture frame HLD is around prominent
Play Le1 to position, it is possible to be combined with each other with the plastic deformation of fine shape portion Ld1,
Carry out the location of higher precision.
Figure 16 is the profile as Figure 12 of the camera head of other variation.From figure
Optical axis direction image side shown in 16 is observed the 1st array lens LA1's according to clockwise
Outer peripheral face is set to the 1st outer edge～the 4th outer edge, by the inner circumferential of the most corresponding picture frame HLD
When face is set to the 1st inner edge portion～4 inner edge portion, at the 1st array lens LA1 shown in Figure 16
Left and lower section limit (suitable with the 3rd outer edge, the 4th outer edge) block portion Lc1 in
It is not provided with fine shape portion.The block Lc1 being not provided with fine shape portion is set to the 1st reference figure
Portion.It addition, by the inner peripheral surface of the picture frame HLD (recess) opposed with it (with the 3rd inner edge portion,
4th inner edge portion is suitable) it is set to the 2nd reference figure portion.Structure beyond it and Figure 12,13
Shown embodiment is identical.
In this variation, when picture frame HLD is assembled the 1st array lens LA1, figure
The lateral surface of the block portion Lc1 on the left of the 1st array lens LA1 shown in 16 and the limit of lower section
(the 1st reference figure portion) abuts to the inner peripheral surface (of the surrounding wall HLDb of picture frame HLD
2 reference figure portions), the right of the 1st array lens LA1 and the limit of top are (with the 1st simultaneously
Outer edge, the 2nd outer edge are suitable) the fine shape portion Ld1 of block portion Lc1 abut to around
The inner peripheral surface of wall HLDb (suitable with the 1st inner edge portion, the 2nd inner edge portion) and plastic deformation.
Thereby, it is possible to get rid of loosening between picture frame HLD and the 1st array lens LA1.At this shape
Under state, precision guarantees the central shaft of each opening aperture S and little eyelens La1, La2 well
The axiality of optical axis.In this variation, the left of the 1st array lens LA1 and lower section
The lateral surface of block portion Lc1 abuts to the inner peripheral surface of the surrounding wall HLDb of picture frame HLD, thus
Can precision position more well.Alternatively, it is also possible to replace the 1st array lens LA1
Fine shape portion is set, and picture frame HLD the 1st inner edge portion of surrounding wall HLDb,
2 inner edge portion arrange fine shape portion.
Embodiment according to this specification record, technological thought, for those skilled in the art
For Yuan, it is clear that the invention is not restricted to embodiment, variation that this specification is recorded, and wrap
Include other embodiment, variation.Such as, above-mentioned compound eye optical system is not limited to visual field segmentation
Type, and can also be used to the camera head of super-resolution type.Alternatively, it is also possible in optics unit
After the molding of part, UV hardening resin etc. is utilized to form fine shape portion.And then, optics
The profile of element is not limited to circle, it is also possible to be polygonal shape.And then, see from optical axis direction
Having examined the shape of compound eye optical system, to be not limited to tetragon etc. polygon-shaped, it is also possible to is to be used at angle
Circular arc connects junction configuration, circle or elliptical shape.
Claims (18)
1. an optical component package, by the of the 1st fitting portion of optical element and other parts
2 fitting portions are chimeric to be formed, and described optical component package is characterised by,
At least one party in described 1st fitting portion and described 2nd fitting portion, is provided with along institute
State the fine shape portion that the optical axis orthogonal direction of optical element is prominent,
Described fine shape portion is along with described optical element and the chimeric degree of depth of other parts described
Deepening, the overhang in the direction, face intersected with the optical axis of described optical element increases,
Described 1st fitting portion or described 2nd fitting portion be fitted size ratio the described 2nd
The chimeric size of fitting portion or described 1st fitting portion is big, and described in comparison, chimeric size adds
The maximum overhang in described fine shape portion and the size that obtains is little.
Optical element lenses assembly the most according to claim 1, it is characterised in that
Other parts described are other optical elements.
Optical component package the most according to claim 1, it is characterised in that
Other parts described are to maintain the picture frame of described optical element.
4. according to the optical component package described in any one in claims 1 to 3, its feature
It is,
It is equally spaced multiple described fine shape portion in the circumferential.
5. according to the optical component package described in any one in Claims 1 to 4, its feature
It is,
Transfer the optical surface of described optical element and the mould of described 1st fitting portion is same mould
Tool.
6. according to the optical component package described in any one in Claims 1 to 5, its feature
It is,
Described optical element has in the way of making optical axis different and is arranged the saturating of multiple optical surface
Mirror and the plate portion engaged with described lens.
7. an optical component package, chimeric optical element and other parts, make described optics unit
1st reference figure portion of part and the 2nd reference figure portion of other parts described abut and carry out institute
Stating the location of the optical axis orthogonal direction of optical element, described optical component package is characterised by,
In the part in addition to described 1st reference figure portion of described optical element and described
At least one party in the part in addition to described 2nd reference figure portion of other parts, is arranged
Have along the prominent fine shape portion of the optical axis orthogonal direction of described optical element,
Described fine shape portion is along with described optical element and the chimeric degree of depth of other parts described
Deepening, the overhang in the direction, face intersected with the optical axis of described optical element increases,
Described optical element or other parts described be fitted size than other parts described
Or the chimeric size of described optical element is big, and chimeric size described in comparison is plus described fine
The maximum overhang of shape portion and the size that obtains is little.
Optical component package the most according to claim 7, it is characterised in that
Described 1st reference figure portion and described 2nd reference figure portion are respectively arranged at along described
Cross one another 2 faces that optical axis extends, described fine shape portion is arranged at the most described 2
Face is across the opposition side of described optical axis.
9. according to the optical component package described in claim 7 or 8, it is characterised in that
Described optical element has in the way of making optical axis different and is arranged the saturating of multiple optical surface
Mirror and the plate portion engaged with described lens,
Other parts described have the recess chimeric with described plate portion,
Described 1st reference figure portion is a part for the outer peripheral face in described plate portion, the described 2nd
Reference figure portion is a part for the inner peripheral surface of described recess.
Optical component package the most according to claim 9, it is characterised in that
It is polygon-shaped that described plate portion and described recess are observed along described optical axis direction.
11. optical component package according to claim 10, it is characterised in that
Described polygon-shaped observation along optical axis direction is quadrilateral shape, is seeing from optical axis direction image side
Examine and in the direction of the clock the outer peripheral face in described plate portion be set to the 1st outer edge～the 4th outer edge,
When the inner peripheral surface of described recess corresponding respectively is set to the 1st inner edge portion～4 inner edge portion, institute
The 1st reference figure portion that states is arranged at described 3rd outer edge and described 4th outer edge, and described
2 reference figure portions are arranged at described 3rd inner edge portion and described 4th inner edge portion.
12. optical component package according to claim 11, it is characterised in that
Described fine shape portion be arranged at described 1st outer edge and described 2nd outer edge or
It is arranged at described 1st inner edge portion and described 2nd inner edge portion.
13. according to the optical component package described in any one in claim 7～12, and it is special
Levy and be,
The mould of the optical surface and described 1st reference figure portion that transfer described optical element is same
One mould.
14. according to the optical component package described in any one in claim 1～13, and it is special
Levy and be,
The safety coefficient in described fine shape portion is less than 1.
15. according to the optical component package described in any one in claim 1～14, and it is special
Levy and be,
Described fine shape portion is the chimeric side along described optical element and other parts described
To half-conical shape or the triangular pyramidal shape with axis.
16. according to the optical component package described in any one in claim 1～15, and it is special
Levy and be,
Described optical element or other parts described of forming described fine shape portion pass through heat
Moldable resin molding.
The manufacture method of 17. 1 kinds of optical component package, is by the 1st fitting portion of optical element
With the manufacture method of the optical component package that the 2nd fitting portion of other parts is fitted together to, it is special
Levy and be,
At least one party in described 1st fitting portion and described 2nd fitting portion, is arranged along described
The fine shape portion that the optical axis orthogonal direction of optical element is prominent,
Described fine shape portion is along with described optical element and the chimeric degree of depth of other parts described
Deepening, the overhang in the direction, face intersected with the optical axis of described optical element increases,
Described 1st fitting portion or described 2nd fitting portion be fitted size ratio the described 2nd
The chimeric size of fitting portion or described 1st fitting portion is big, and described in comparison, chimeric size adds
The maximum overhang in described fine shape portion and the size that obtains is little,
When being fitted together to described 1st fitting portion and described 2 fitting portion, by described fine shape
Shape portion carries out the location of the optical axis orthogonal direction of described optical element and other parts described.
The manufacture method of 18. 1 kinds of optical component package, is chimeric optical element and other parts
And make the 1st reference figure portion and the 2nd reference figure of other parts described of described optical element
Portion abuts the optical component package of the location of the optical axis orthogonal direction carrying out described optical element
Manufacture method, it is characterised in that
In the part in addition to described 1st reference figure portion of described optical element and described
At least one party in the part in addition to described 2nd reference figure portion of other parts, is arranged
Along the fine shape portion that the optical axis orthogonal direction of described optical element is prominent,
Described fine shape portion is along with described optical element and the chimeric degree of depth of other parts described
Deepening, the overhang in the direction, face intersected with the optical axis of described optical element increases,
Described optical element or other parts described be fitted size than other parts described
Or the chimeric size of described optical element is big, and chimeric size described in comparison is plus described fine
The maximum overhang of shape portion and the size that obtains is little,
When making described 1st reference figure portion and described 2nd reference figure portion abuts, by institute
State the optical axis orthogonal direction of the fine shape portion described optical element of suppression and other parts described
Loosen.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014013123 | 2014-01-28 | ||
| JP2014-013123 | 2014-01-28 | ||
| PCT/JP2015/051968 WO2015115351A1 (en) | 2014-01-28 | 2015-01-26 | Optical element unit, and manufacturing method for optical element unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105980903A true CN105980903A (en) | 2016-09-28 |
Family
ID=53756925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580005694.0A Pending CN105980903A (en) | 2014-01-28 | 2015-01-26 | Optical element unit, and manufacturing method for optical element unit |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6801961B2 (en) |
| CN (1) | CN105980903A (en) |
| WO (1) | WO2015115351A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022000784A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞泰光学(常州)有限公司 | Lens module |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019235250A1 (en) * | 2018-06-08 | 2019-12-12 | ソニーセミコンダクタソリューションズ株式会社 | Imaging device |
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| JPH0529012U (en) * | 1991-09-27 | 1993-04-16 | 株式会社日立製作所 | Lens holding structure |
| JPH0654012U (en) * | 1992-12-22 | 1994-07-22 | 市光工業株式会社 | Lens mounting structure |
| JP2001324692A (en) * | 2000-05-17 | 2001-11-22 | Kyocera Mita Corp | FIXING STRUCTURE FOR ftheta LENS |
| JP2004347996A (en) * | 2003-05-23 | 2004-12-09 | Sony Corp | Lens holding member and lens assembling method |
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- 2015-01-26 JP JP2015559923A patent/JP6801961B2/en active Active
- 2015-01-26 WO PCT/JP2015/051968 patent/WO2015115351A1/en active Application Filing
- 2015-01-26 CN CN201580005694.0A patent/CN105980903A/en active Pending
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| JP2002090604A (en) * | 2000-09-20 | 2002-03-27 | Enplas Corp | Lens unit |
| JP2002189160A (en) * | 2000-12-20 | 2002-07-05 | Echo:Kk | Method for bonding plastic lens and plastic lens barrel |
| JP2006205430A (en) * | 2005-01-26 | 2006-08-10 | Seiko Epson Corp | ELECTRO-OPTICAL DEVICE, MANUFACTURING METHOD THEREOF, IMAGE PRINTING DEVICE, AND IMAGE READING DEVICE |
| JP2012056321A (en) * | 2005-12-26 | 2012-03-22 | Konica Minolta Opto Inc | Mold for resin molding, objective lens for optical pickup device and method for manufacturing optical element |
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| WO2022000784A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞泰光学(常州)有限公司 | Lens module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6801961B2 (en) | 2020-12-16 |
| WO2015115351A1 (en) | 2015-08-06 |
| JPWO2015115351A1 (en) | 2017-03-23 |
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Application publication date: 20160928 |