CN110196475A - The manufacturing method of optical unit and optical unit - Google Patents
The manufacturing method of optical unit and optical unit Download PDFInfo
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- CN110196475A CN110196475A CN201910137850.9A CN201910137850A CN110196475A CN 110196475 A CN110196475 A CN 110196475A CN 201910137850 A CN201910137850 A CN 201910137850A CN 110196475 A CN110196475 A CN 110196475A
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- optical components
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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
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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
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
Abstract
The present invention provides facilitation, optical unit that is cost effective and preventing optical performance degradation and its manufacturing method that can be realized simplification, the assembling of structure.Optical unit has multiple optical components including multiple lens, with by multiple optical components with the lens carrier (20) for the state support being overlapped, the first component of end configuration in multiple optical components in the direction along the direction optical axis AX has the bearing surface i.e. abutment face abutted with the predetermined surface of lens carrier, lens carrier has the press section for pressing multiple optical components towards other direction via the first component, in the state that the supporting end of the other direction of second component or lens carrier is overlapped multiple optical components in lens carrier in multiple optical components, in the case where giving the defined pressing force towards other direction to the first component by press section, allow the located adjacent of the abutment face of the first component and the predetermined surface of lens carrier with the deformation of gap isodose on the direction optical axis AX.
Description
Technical field
The present invention relates to by multiple optical components with the state being overlapped be assembled into optical unit made of lens carrier and
The manufacturing method of optical unit.
Background technique
As previous optical unit, it is known that a kind of following optical unit, that is, in the lens carrier for constituting optical unit
The middle multiple lens of stacking, the foremost lens that seal member (o-ring) is installed for the purpose of waterproof are supported with next second lens
In the state of connecing, fix the front end portion thermal deformation of lens carrier (referring to specially foremost lens and other lens
Sharp document 1).
However, the foremost lens that not can guarantee embedding sealing component must in the case where optical unit as described above
It must be assembled as the crow flies along optical axis direction, if temporarily foremost lens relative to the state of inclined light shaft to assemble, with the
In the state that two lens abut, if making lens carrier thermal deformation while pressing foremost lens, after the second lens
It is possible that all copying the inclination of foremost lens and there is inclination ingredient, as a result it is possible to bring the deterioration of optical property.
In addition, as described in Patent Document 2, it is known that the lens other than a kind of lens by foremost are relative to lens carrier heap
Product, and be fixed by bonding etc., foremost lens are only assembled to lens carrier, and make the predetermined surface and most of lens carrier
The bearing surfaces of front lens abuts, so as to by the lens other than foremost lens and foremost lens with stable posture
The optical unit of assembling.
However, needing to accumulate the lens other than the lens of foremost, and in the assembled state in the case where the optical unit
Be fixed, generate the fixation working hour and fixed cell brought by cost increase.
Patent document 1: Japanese Unexamined Patent Publication 2011-59396 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2015-125363 bulletin.
Summary of the invention
The present invention in view of the aforementioned technical background the problem of and complete, its purpose is to provide can be realized structure
Simplify, facilitation, optical unit that is cost effective and preventing optical performance degradation and its manufacturing method of assembling.
At least one of in order to achieve the above purpose, the optical unit for reflecting one aspect of the present invention is that have
Multiple optical components including multiple optical lenses and by multiple optical components with the light of the lens carrier for the state support being overlapped
Unit is learned, is had and lens carrier in multiple optical components in the first component that the end in the direction along optical axis direction configures
The bearing surface that predetermined surface abuts, lens carrier have a press section, and press section is via the first component towards the opposite another of a direction
One direction presses multiple optical components, the supporting end of the other direction of second component or lens carrier in multiple optical components
In the state of being overlapped multiple optical components in lens carrier, before being pressed by press section, the first component bearing surface and thoroughly
Defined gap is formed along optical axis direction between the predetermined surface of mirror support, and the first component is being given towards another by press section
In the case where the defined pressing force in one direction, the abutting to allow the first component is deformed with gap isodose in the direction of the optical axis
The located adjacent of the predetermined surface of face and lens carrier.
According to above-mentioned optical unit, only multiple optical components corresponding with multiple lens are laminated, without by viscous
It closes etc. and to fix other optical components other than the first component, so not needing additional assembly man-hour, cost can be real
The assembly of existing optical unit.In addition, the bearing surface of the first component and the predetermined surface of lens carrier are supported when pressing the first component
It connects, so even if temporarily obliquely assembling the optical component of a part, passes through the bearing surface of the first component and lens carrier
Predetermined surface abuts, and to exclude the inclination ingredient of the first component, the optical component other than the first component being pressed may not be used yet
There can be inclination ingredient, it is thus possible to prevent the deterioration of optical property.
In specific aspect of the invention, in above-mentioned optical unit, when giving defined pressing force by press section,
The bearing surface of the first component is abutted with the predetermined surface of lens carrier and the bearing surface of the third member adjacent with the first component.The feelings
Under condition, adjacent third member is supported via bearing surface by the first component with the first component.
In another aspect of the invention, second component has lens body and supports the saturating of the lens body from surrounding
Frame, lens carrier and lens frame are formed by resin material.In this case, lens frame flexible deformation, may be implemented with it is above-mentioned
The deformation of gap isodose.
In another aspect of the present invention, press section is the caulking part in a part formation of lens carrier.In this case,
The first component can finally be fixed relative to lens carrier using caulking part.
In another aspect of the present invention, the bearing surface of the first component and the predetermined surface of lens carrier are perpendicular to optical axis direction
And extend.
At least one of in order to achieve the above purpose, reflect the manufacture of the optical unit of one aspect of the present invention
Method is that multiple optical components including multiple optical lenses are assembled to lens carrier with the state being overlapped and make lens carrier
The manufacturing method of the optical unit of bearing, at first of end configuration of the direction along optical axis direction in multiple optical components
Part has the bearing surface abutted with the predetermined surface of lens carrier, and lens carrier has press section, and press section is via first component court
To the opposite other direction in a direction press multiple optical components, the state for multiple optical components being overlapped in lens carrier
Under, before being pressed by press section, pass through the supported end of the other direction of second component or lens carrier in multiple optical components
Portion between the bearing surface of the first component and the predetermined surface of lens carrier in the direction of the optical axis formed as defined in gap, and by
In the case that the defined pressing force towards other direction is given to the first component in press section, make second component or supporting end
It is deformed in the direction of the optical axis with gap isodose, makes the bearing surface of the first component and the predetermined surface located adjacent of lens carrier.
According to the manufacturing method of above-mentioned optical unit, only multiple optical components corresponding with multiple lens are laminated, and nothing
Other optical components other than the first component need to be fixed, so not needing additional assembling working hour, cost, can realize light
Learn the assembly of unit.In addition, the bearing surface of the first component is abutted with the predetermined surface of lens carrier when pressing the first component, the
One component and by the first component press other optical components also all may not have inclination ingredient, it is thus possible to prevent optics
The deterioration of performance.
Detailed description of the invention
Figure 1A is the cross-sectional view being illustrated to the filming apparatus for the optical unit for including first embodiment, and Figure 1B is pair
The enlarged partial sectional view that fixation in the periphery frame portion of first and second lens is illustrated.
Fig. 2A and 2B is the main view and side cross-sectional view of lens carrier, Fig. 2 C be to the lens frames of the 4th lens into
The perspective view of row explanation.
Fig. 3 A is the cross-sectional view being illustrated to the optical unit before the final fixation by caulking part,
Fig. 3 B is the enlarged partial sectional view that the state before the final fixation to the first and second lens is illustrated.
Fig. 4 A is the cross-sectional view being illustrated to the optical unit of second embodiment, Fig. 4 B be to by caulking part most
The cross-sectional view that optical unit before fixing eventually is illustrated.
Fig. 5 A is the cross-sectional view being illustrated to the optical unit of third embodiment, Fig. 5 B be to by caulking part most
The cross-sectional view that optical unit before fixing eventually is illustrated.
Specific embodiment
(first embodiment)
Hereinafter, referring to attached drawing, optical unit to first embodiment according to the present invention and has the optical unit
Filming apparatus be illustrated.
As shown in Figure 1A, optical unit 100 constitutes filming apparatus 200 by combining with sensor portion 50.Optical unit
100 have photographing optical system 10 and store the lens carrier 20 of photographing optical system 10.Photographing optical system 10 by first~
6th lens L1~L6 is constituted.First~the third lens L1~L3 and the 5th and the 6th in first~the 6th lens L1~L6
Lens L5, L6 are the optical lenses of resin, and the 4th lens L4 is that have the lens body 31 of glass system and by the lens body
31 install the optical lens of the lens frame 32 to the resin of inside.Configuration is clamped between the second lens L2 and the third lens L3
There is diaphragm ST1, clamping is configured with diaphragm ST2 between the third lens L3 and the lens frame 32 of the 4th lens L4, in the 6th lens
Diaphragm ST3 has been gripped between the frame portion 16 of L6 and the image side supporting end 20b of lens carrier 20.Lens carrier 20 is by first
Multiple optical components such as~the six lens L1~L6 are with the state support being overlapped and storage.Lens carrier 20 or lens frame 32 by
The formation such as material made of combined fiberglass in resin material, resin, specifically, for example using in polycarbonate, polyamides
Material made of combined fiberglass etc. in amine.On the other hand, for the lens L1~L3 of first~third, the 5th and the 6th,
L5, L6 and lens body 31 select the material of refractive index of optical characteristics for having needed for playing etc..Diaphragm ST1~ST3 can
For made of metal, but can also be formed by resin etc..Diaphragm ST1, ST2 can not be clipped between a pair of of lens and fix, and lead to
It crosses bonding etc. and is fixed on individual lens.
Above-mentioned first~the 6th lens L1~L6 and diaphragm ST1~ST3 is the multiple optical components being stacked, in them
First lens L1 be configured in the direction (attached drawing on the left of) in photographing optical system 10 along the direction optical axis AX end the
One component is used in positioning of the direction optical axis AX of the first~the 6th lens L1~L6 relative to lens carrier 20.Second lens
L2 is third member that is adjacent with the first lens L1 and abutting with the first lens L1, and the 4th lens L4 is to allow to utilize the first lens
The second component of the positioning of L1.
First lens (first component) L1 the image side of peripheral part 11a have stage portion 11c, stage portion 11c have with
Optical axis AX parallel face and the face vertical with optical axis AX are equipped with the o-ring 25 of waterproof in stage portion 11c.In peripheral part 11a
Image side and the flat part with abutment face (bearing surface) 1b vertical with optical axis AX is being provided with by central side than stage portion 11c
11d.The edge predetermined surface 21i of the object side supporting end 20a of abutment face (bearing surface) 1b and lens carrier 20 of first lens L1
The direction optical axis AX extends.Abutment face (bearing surface) 1b and lens carrier by the flat part 11d being arranged in the first lens L1
The predetermined surface 21i of 20 object side supporting end 20a is abutted, and is positioned to become the first lens L1 relative to lens carrier 20
State.In other words, the abutting of the predetermined surface 21i of abutment face (bearing surface) 1b and lens carrier 20 of the first lens L1 becomes
The located adjacent that first lens L1 etc. is positioned relative to lens carrier 20.On the other hand, the peripheral part of the first lens L1
The hot riveting that the object side of 11a or the outer rim of subject side are formed with the object side supporting end 20a in lens carrier 20
Portion 20h is close to and is fixed on the supporting end 20a of object side.Prevented by rivet hot socket part 20h the first lens L1 to along
One direction in the direction optical axis AX is mobile.
Second lens (third member) L2 has cricoid frame in the outside of the main part functioned optically
Portion 12.The frame portion 12 of second lens L2 has abutment face (bearing surface) 2a vertical with optical axis AX in the first side lens L1, the
Three sides lens L3 have the abutment face 2b vertical with optical axis AX.The third lens L3 is in the main part functioned in an optical manner
The outside divided has cricoid frame portion 13.The frame portion 13 of the third lens L3 has vertical with optical axis AX support in the second side lens L2
By face 3a, there is the abutment face 3b vertical with optical axis AX in the 4th side lens L4.4th lens (second component) L4 is with optics
The outside of main part that functions of mode there is cricoid frame portion 14.The frame portion 14 of 4th lens L4 is in the third lens L3
Side has the abutment face 4a vertical with optical axis AX, has the abutment face 4b vertical with optical axis AX in the 5th side lens L5.5th thoroughly
Mirror L5 has cricoid frame portion 15 in the outside of the main part functioned in an optical manner.The frame portion 15 of 5th lens L5
The 4th side lens L4 have the abutment face 5a vertical with optical axis AX, the 6th side lens L6 have it is vertical with optical axis AX against
Face 5b.6th lens L6 has cricoid frame portion 16 in the outside of the main part functioned in an optical manner.6th thoroughly
The frame portion 16 of mirror L6 has the abutment face 6a vertical with optical axis AX in the 5th side lens L5, in the image side supported end of lens carrier 20
The portion side 20b has the abutment face 6b vertical with optical axis AX.
As shown in Fig. 2A and 2B, lens carrier 20 has body part 20c, object side supporting end 20a and image side branch
Socket end portion 20b.Stair-stepping inner peripheral surface 20d is formed on the inside of body part 20c.
A referring to Fig.1, the outer peripheral surface of the stair-stepping lens L1~L6 of inner peripheral surface 20d and first~the 6th of lens carrier 20
1c~6c is close.
As shown in Figure 3A, before the fixation using the rivet hot socket part 20h of lens carrier 20 in the state of, the first~the 6th thoroughly
Mirror L1~L6 can be inserted into the body part 20c of lens carrier 20 in an overlapping manner according to the sequence from the 6th lens L6
In.At this point, the first~the 6th lens L1~L6 is maintained in body part 20c with chimerism, and vertical with optical axis AX
It is positioned on direction, but becoming can be along the state that the direction optical axis AX is moved or slided.Make the first~the 6th lens L1~
In the state of L6 overlapping, abutment face 1b, 2a of first and second lens L1, L2 is abutted, and adjusts the optical axis AX of two lens L1, L2
The interval in direction.Also, second and abutment face 2b, 3a of the third lens L2, L3 is abutted with diaphragm ST1 and is positioned, third
And the 4th abutment face 3b, 4a of lens L3, L4 abut and positioned with diaphragm ST2, the 4th and the 5th lens L4, L5's supports
It is abutted by face 4b, 5a, abutment face 5b, 6a of the 5th and the 6th lens L5, L6 is abutted.According to the above, adjustment the second~the 6th
The interval in the direction optical axis AX of lens L2~L6.The abutment face 6b of 6th lens L6 and the image side supporting end in lens carrier 20
The abutment face 21j of 20b setting is abutted.Being used as in the rivet hot socket part 20h that the object side supporting end 20a of lens carrier 20 is arranged will
The optical components such as the first~the 6th lens L1~L6 are functioned to the press section that the other direction along the direction optical axis AX presses.
In addition, being described in detail later, but the abutment face 4a, 4b, the abutment face 21j that are displaced by flexible deformation are formed in circumferentially multiple
In the region separated at position, but do not need abutment face 1b, 2a of other flexible deformations or displacement, 2b, 3a, 3b, 5a,
5b, 6a, 6b are not necessarily formed in the region circumferentially separated at multiple positions, can be cricoid.
In the lens frame 32 of the 4th lens L4 shown in fig. 2 C, the abutment face 4a of object side along lens frame 32 circumference
It is formed uniformly at 3 positions.Abutment face 4a is on cricoid seat surface layer 61 compared with unfertile land bump count μm~several 10 μm or so
State formed (in the accompanying drawings, exaggerate and thickness be shown).Abutment face 4a or seat surface layer 61 are become by the external force of number 100N or so
Shape shifts up abutment face 4a in the optical axis side AX.At this point, abutment face 4a along lens frame 32 even circumferential be formed in 3
At a position.Abutment face 4a is displaced in a manner of relative to the insertion of cricoid seat surface layer 61 by stress.It omits specifically
It is bright, but the abutment face 4b of the image side of the 4th lens L4 also has shape same as the abutment face 4a of object side, with illustration omitted
Seat surface layer flexible deformation together.Total displacement of abutment face 4a, 4b of 4th lens L4 eliminate seat surface layer and adjoining is saturating
The gap of mirror.By clamping lens frame from the two sides in the direction optical axis AX using third and the 5th lens L3, L5 with defined power
32, so as to be resiliently deformed lens frame 32 on the direction optical axis AX, and make lens frame on the position of abutment face 4a, 4b
32 thickness equably changes several 10 μm or several 10 μm or more.Therefore, lens frame 32 by with first~third, the 5th and
The biggish material of the flexible deformation that compares such as six lens L1~L3, L5, L6 is formed.
In the image side supporting end 20b of the lens carrier 20 shown in Fig. 2 B, abutment face 21j is along image side supporting end
It is formed in the even circumferential of 20b at 3 positions.Abutment face 21j on cricoid seat surface layer 62 with compared with unfertile land bump count μm~
Several 10 μm of states are formed.Abutment face 21j or seat surface layer 62 are deformed by the external force of number 100N or so, and abutment face 21j is made to exist
The optical axis side AX shifts up.At this point, abutment face 21j is displaced in a manner of being embedded in relative to seat surface layer 62.By saturating using the 6th
Mirror L6 presses image side supporting end 20b from the direction along the direction optical axis AX to other direction with defined power, so as to
It is resiliently deformed image side supporting end 20b on the direction optical axis AX, and in the position image side the Shang Shi supporting end of abutment face 21j
The thickness of 20b equably converts several 10 μm or several 10 μm or more.Therefore, lens carrier 20 by with first~third, the 5th, with
And the biggish material of the flexible deformation that compares such as the 6th lens L1~L3, L5, L6 is formed.
Hereinafter, being illustrated to the manufacturing method of optical unit 100.Firstly, prepare lens carrier 20 shown in Fig. 2 B, it will
6th lens L6 shown in figure 1A is inserted into lens carrier 20.Next, the 5th lens L5, the 4th lens L4, third is saturating
Mirror L3, second lens L2 etc. are sequentially inserted into lens carrier 20.Finally, in the stage portion 11c mounting O-shaped ring of the first lens L1
It 25 and is inserted into lens carrier 20, become makes the flat part 11d of the first lens L1 be resisted against the second lens with lower pressure
The state of the frame portion 12 of L2.In this state, abutment face (bearing surface) 1b that is set to the flat part 11d of the first lens L1 with
It is set between the predetermined surface 21i of the object side supporting end 20a of lens carrier 20 and is formed with 20 μm of clearance G A (references below
Fig. 3 B).Later, be pressed into the first lens L1 towards the other direction parallel with optical axis AX, make the first lens L1 flat part 11d and
The axial supporting part 24a of the object side supporting end 20a of lens carrier 20 is abutted, and makes the riveting reservations of 20 front end of lens carrier
20g thermal deformation forms rivet hot socket part 20h, thus completes the assembly (A and 1B referring to Fig.1) of optical unit 100.At this point, logical
Overheat caulking part (press section) 20h gives towards the other direction parallel with optical axis AX the first lens L1 as the first component
Defined pressing force.In the case where giving defined pressing force as the first lens L1, the seat surface layer of the 4th lens L4
61 deformations, the displacement such as abutment face 4a, and the seat surface layer 62 of the image side supporting end 20b of lens carrier 20 deforms, abutment face 21j
Displacement.In other words, the 4th lens L4 and image side supporting end 20b and clearance G A isodose deform, and allow the first lens L1's
The located adjacent of the predetermined surface 21i of abutment face (bearing surface) 1b and lens carrier 20.The abutment face (bearing surface) of second lens L2
2a is abutted relative to abutment face (bearing surface) 1b of the first lens L1, corrects the inclination of the second~the 6th lens L2~L6.Pass through
As such structure, even if temporary first lens L1, which has, is obliquely assembled to lens carrier 20, rivet hot socket part is being utilized
When the fixation of 20h, abutted by abutment face (bearing surface) 1b of the first lens L1 with the predetermined surface 21i of lens carrier 20 to exclude
Inclination, so the second lens L2 later lens will not tilt, can prevent the deterioration of optical property.
In filming apparatus 200, sensor portion 50 has to the quilt formed by the photographing optical system 10 of optical unit 100
The biography that shooting body image carries out the solid-state image pickup element 51 of light-to-current inversion and kept to solid-state image pickup element 51 or filter 52
Sensor bracket 53.Solid-state image pickup element 51 is, for example, cmos type imaging sensor.
In the optical unit 100 of first embodiment discussed above, due to being only laminated and multiple lens L1~L6
Corresponding multiple optical components, without other other than the first lens L1 as the first component by the fixation such as bonding
Optical component can realize the assembly of optical unit so not needing additional assembling working hour, cost.In addition, in pressing conduct
When the first lens L1 of the first component, abutment face (bearing surface) 1b and lens carrier 20 of the first lens L1 as the first component
Predetermined surface 21i abut, so even if temporarily obliquely assemble the optical component of a part, but pass through the as the first component
Abutment face (bearing surface) 1b of one lens L1 is abutted with the predetermined surface 21i of lens carrier 20, to exclude inclining for the first lens L1
Oblique ingredient, eliminating the second~the 6th lens L2~L6 being pressed also has a possibility that inclination ingredient, so can prevent
The deterioration of the optical property of optical unit 100.
(second embodiment)
Hereinafter, being illustrated to optical unit involved in second embodiment.In addition, the optics list of second embodiment
Member is item and first embodiment for being not particularly illustrated etc. made of deforming to the optical unit of first embodiment
It is identical.
As shown in Figure 4 A, optical unit 100 has photographing optical system 10 and stores the lens branch of photographing optical system 10
Frame 20.Photographing optical system 10 is made of the first~the 6th lens L1~L6, as other optical components, have diaphragm ST1~
ST3。
In this case, diaphragm ST2 is the chip part of the resin functioned as second component, there are several 10 μm or so
Wall thickness.Diaphragm ST2 is not limited to the diaphragm of adjustment opening, is also possible to light limitation use or ghost image countermeasure is used.Diaphragm ST2
The side the third lens L3 have the abutment face 8a vertical with optical axis AX, the 4th side lens L4 have it is vertical with optical axis AX against
Face 8b.Make the first~the 6th lens L1~L6 be overlapped in the state of, the abutment face 3b and diaphragm ST2 of the third lens L3 against
Face 8a is abutted, and the abutment face 8b of the abutment face 4a and diaphragm ST2 of the 4th lens L4 is abutted, and adjusts the third lens L3 and the 4th
The interval in the direction optical axis AX of lens L4.
Diaphragm (second component) ST2 compared with the first~the 6th lens L1~L6 by being easier to the material shape of flexible deformation
At, it being deformed by the external force of several 100N or so, thickness changes, thus it enables that the interval variation of abutment face 8a, 8b, and energy
Shift up abutment face 8a, 8b in the optical axis side AX.In addition, in the present embodiment, can reduce the frame of the 4th lens L4
The spring rate in portion 14, also being capable of the compressive deformation in the same manner as diaphragm ST2.In this case, diaphragm ST2's and the 4th lens L4 is total
Displacement can eliminate between diaphragm ST2 and the 4th lens L4 or diaphragm ST2 or the 4th lens L4 and adjacent lens between
Gap.
The first~the 6th lens L1~L6 etc. is being inserted into lens carrier 20 according to the sequence from the 6th lens L6,
And pressed by the rivet hot socket part 20h as press section in the stage before first lens L1 etc., it is being set to the first lens L1's
Abutment face (bearing surface) 1b of flat part 11d and be set to lens carrier 20 object side supporting end 20a predetermined surface 21i it
Between be formed with 20 μm of clearance G A below.Later, it is pressed into the first lens L1 towards the other direction parallel with optical axis AX, makes first
The axial supporting part 24a of the object side supporting end 20a of the flat part 11d and lens carrier 20 of lens L1 is abutted, and makes lens branch
The riveting reservations 20g thermal deformation of 20 front end of frame forms rivet hot socket part 20h, thus completes the assembly (reference of optical unit 100
Fig. 4 A and 4B).When being pressed into the first lens L1 towards the other direction (inboard direction) parallel with optical axis AX, diaphragm ST2's
Thickness is reduced, abutment face 8a, 8b displacement, and the abutment face 21j displacement of the image side supporting end 20b of lens carrier 20.Change sentence
It talks about, diaphragm ST2 and image side supporting end 20b and clearance G A (referring to Fig. 4 B) isodose are deformed, and allow supporting for the first lens L1
By the located adjacent of face (bearing surface) 1b and the predetermined surface 21i of lens carrier 20.
(third embodiment)
Hereinafter, being illustrated to optical unit involved in third embodiment.In addition, the optics list of third embodiment
Member is item and first embodiment for being not particularly illustrated etc. made of deforming to the optical unit of first embodiment
It is identical.
As shown in Figure 5A, optical unit 100 has photographing optical system 10 and stores the lens branch of photographing optical system 10
Frame 20.Photographing optical system 10 is made of the first~the 6th lens L1~L6, as other optical components, has diaphragm ST1
~ST3.
In this case, only the first lens L1 is fixed independently on lens carrier 20, by the second~the 6th lens L2~
L6 is with the state support that is laminated in lens carrier 20.In other words, the second~the 6th lens L2~L6 is kept with chimerism
Positioned in lens carrier 20, and on the direction vertical with optical axis AX, become can be moved on the direction optical axis AX or
The state of sliding.The abutment face that the abutment face 2a of second lens L2 is arranged with the object side supporting end 20a in lens carrier 20
121j is abutted.It is in the rivet hot socket part 120h that the image side supporting end 20b of lens carrier 20 is arranged along the direction optical axis AX
One direction side (on the right side of attached drawing), and the second~the 6th lens L2~L6 is pressed as towards along the other direction in the direction optical axis AX
The press section of equal optical components functions.In other words, the abutment face 6b warp for the 6th lens L6 configured at the end in a direction
Engaged by diaphragm ST3 with rivet hot socket part 120h and receives pressing force.Herein, the 6th lens L6 is first in multiple optical components
Component, the 5th lens L5 are the third members adjacent with the first component.In other words, the 6th lens (first component) L6 against
Face 6a and the predetermined surface 121i and the 5th lens (third member) L5 of the image side supporting end 20b that lens carrier 20 is set
Abutment face (bearing surface) 5b is abutted.
In pressing the stage before the 6th lens L6 etc. by rivet hot socket part 120h, in the frame portion for being set to the 6th lens L6
16 abutment face (bearing surface) 6a and be set to lens carrier 20 image side supporting end 20b predetermined surface 121i between be formed with
20 μm of clearance G A below (referring to Fig. 5 B).Later, it is pressed into the 6th lens L6 towards the other direction parallel with optical axis AX, makes the
The axial supporting part 24b of the image side supporting end 20b of the frame portion 16 and lens carrier 20 of six lens L6 is abutted, and makes lens carrier 20
The riveting reservations 120g thermal deformation of rear end forms rivet hot socket part 120h, thus completes the assembly of optical unit 100 (referring to figure
5A and 5B).When being pressed into the 6th lens L6 towards the other direction (inboard direction) parallel with optical axis AX, as second component
The 4th lens L4 abutment face 4a displacement, and the object side supporting end 20a of lens carrier 20 abutment face 121j displacement.
In other words, the 4th lens (second component) L4 and image side supporting end 20b and clearance G A isodose are deformed to allow the 6th thoroughly
The located adjacent of the predetermined surface 121i of abutment face (bearing surface) 6a and lens carrier 20 of mirror L6.
(other)
More than, the optical unit 100 as specific embodiment is illustrated, but is not limited to involved by the present invention
And optical unit, be able to carry out various deformations.For example, constituting the piece number of optical lens of photographing optical system 10 and unlimited
It in 6 pieces, such as can be the combined optical lens of 3 pieces or more of various positive negative powers.In addition, the shape of lens carrier 20
It can suitably be changed according to purposes of photographing optical system etc..
In above-mentioned first and third embodiment, the 4th lens L4 is set as second component, but can be by the 4th thoroughly
The second component of compressive deformation is set as other than mirror L4.In addition, however it is not limited to only by the 4th such a optical component of lens L4
Be set as second component and can compressive deformation, multiple lens or optical element can be set as to second component, shared for fixed
The function for the compressive deformation that position abuts.
In the above-described first embodiment, the abutment face 21j of the image side supporting end 20b of lens carrier 20 is deformed, but
In the deformation by second components such as the 4th lens L4 with regard in enough situations, or make supporting for image side supporting end 20b
By the indeformable structure of face 21j.Similarly, in the above-described 3rd embodiment, make the object side supporting end of lens carrier 20
The abutment face 121j of 20a is deformed, but in the deformation by second components such as the 4th lens L4 with regard in enough situations, or
Make the indeformable structure of abutment face 121j of object side supporting end 20a.
In the above-described embodiment, shape is separated in the regional area of multiple positions (such as 3 positions) circumferentially
It at abutment face 4a, 4b of the 4th lens L4 and the abutment face 21j of image side supporting end 20b, but also can be not need multiple
Abutment face 4a, 21j are formed in regional area, and annular section circumferentially is set as abutment face or seat surface to allow to position
The structure of abutting.
Claims (6)
1. a kind of optical unit, have multiple optical components including multiple optical lenses and by above-mentioned multiple optical components with
The lens carrier of the state support of overlapping, wherein
The first component in above-mentioned multiple optical components in the end configuration in the direction along optical axis direction has and said lens
The bearing surface that the predetermined surface of bracket abuts,
Said lens bracket has a press section, above-mentioned press section via the above-mentioned first component towards one side to it is opposite another
One direction presses above-mentioned multiple optical components,
The supporting end of the above-mentioned other direction of second component or said lens bracket is above-mentioned in above-mentioned multiple optical components
In lens carrier in the state of the above-mentioned multiple optical components of overlapping, before by the pressing of above-mentioned press section, in the above-mentioned first component
Defined gap is formed along optical axis direction between above-mentioned bearing surface and the above-mentioned predetermined surface of said lens bracket, and by above-mentioned
In the case that the defined pressing force towards above-mentioned other direction is given to the above-mentioned first component in press section, in the direction of the optical axis with
The deformation of above-mentioned gap isodose is to allow the above-mentioned bearing surface of the above-mentioned first component and the above-mentioned predetermined surface of said lens bracket
Located adjacent.
2. optical unit according to claim 1, wherein
When the pressing force as defined in being given by above-mentioned press section, the above-mentioned bearing surface of the above-mentioned first component is the same as above-mentioned lens carrier
The bearing surface of above-mentioned predetermined surface and the third member adjacent with the above-mentioned first component abuts.
3. optical unit described in any one according to claim 1 and in 2, wherein
Above-mentioned second component has lens body and supports the lens frame of the lens body from surrounding,
Said lens bracket and said lens frame are formed by resin material.
4. optical unit according to any one of claims 1 to 3, wherein
Above-mentioned press section is the caulking part in a part formation of said lens bracket.
5. optical unit described in any one according to claim 1~4, wherein
The above-mentioned bearing surface of the above-mentioned first component and the above-mentioned predetermined surface of said lens bracket extend perpendicular to optical axis direction.
6. a kind of manufacturing method of optical unit, being will include state group of the multiple optical components of multiple optical lenses to be overlapped
It is filled to lens carrier and makes the manufacturing method of the optical unit of said lens bracket bearing, wherein
The first component in above-mentioned multiple optical components in the end configuration in the direction along optical axis direction has and said lens
The bearing surface that the predetermined surface of bracket abuts,
Said lens bracket has a press section, above-mentioned press section via the above-mentioned first component towards one side to it is opposite another
One direction presses above-mentioned multiple optical components,
In the state of being overlapped above-mentioned multiple optical components in said lens bracket, before by the pressing of above-mentioned press section, pass through
The supporting end of the above-mentioned other direction of second component or said lens bracket is above-mentioned first in above-mentioned multiple optical components
Gap as defined in being formed in the direction of the optical axis between the above-mentioned bearing surface of component and the above-mentioned predetermined surface of said lens bracket, and
In the case where being given the above-mentioned first component towards the defined pressing force of above-mentioned other direction by above-mentioned press section, make above-mentioned
Second component or above-mentioned supporting end deformed in the direction of the optical axis with above-mentioned gap isodose so that the above-mentioned first component it is upper
State the above-mentioned predetermined surface located adjacent of bearing surface and said lens bracket.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018032393A JP7037113B2 (en) | 2018-02-26 | 2018-02-26 | Optical unit and manufacturing method of optical unit |
| JP2018-032393 | 2018-02-26 |
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| Publication Number | Publication Date |
|---|---|
| CN110196475A true CN110196475A (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910137850.9A Pending CN110196475A (en) | 2018-02-26 | 2019-02-25 | The manufacturing method of optical unit and optical unit |
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| JP (1) | JP7037113B2 (en) |
| CN (1) | CN110196475A (en) |
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| JP2015175918A (en) * | 2014-03-13 | 2015-10-05 | 日本電産サンキョー株式会社 | wide-angle lens unit |
| CN106405988A (en) * | 2015-06-30 | 2017-02-15 | 罗伯特·博世有限公司 | Camera housing for adjusting an optical system |
| CN107664800A (en) * | 2016-07-29 | 2018-02-06 | 日本电产三协株式会社 | Optical unit |
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| CN201281795Y (en) * | 2008-03-28 | 2009-07-29 | 富士能株式会社 | Lens assembling body and photographic device |
| JP5315084B2 (en) * | 2009-02-17 | 2013-10-16 | オリンパスイメージング株式会社 | Lens assembly |
| JP2012002945A (en) * | 2010-06-15 | 2012-01-05 | Fujifilm Corp | Lens barrel and lens barrel assembling method |
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| Publication number | Publication date |
|---|---|
| JP2019148660A (en) | 2019-09-05 |
| JP7037113B2 (en) | 2022-03-16 |
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