CN105785543B - A kind of high-accuracy microlens array detent mechanism of micron order - Google Patents
A kind of high-accuracy microlens array detent mechanism of micron order Download PDFInfo
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- CN105785543B CN105785543B CN201610324201.6A CN201610324201A CN105785543B CN 105785543 B CN105785543 B CN 105785543B CN 201610324201 A CN201610324201 A CN 201610324201A CN 105785543 B CN105785543 B CN 105785543B
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- positioning
- regulation ring
- cover plate
- microlens array
- positioning regulation
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- 238000003384 imaging method Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
The present invention relates to a kind of high-accuracy microlens array detent mechanism of micron order, belong to positioner field.A kind of high-accuracy microlens array detent mechanism of micron order, including firm banking, positioning regulation ring and cover plate, the positioning regulation ring are arranged on firm banking, and cover plate is covered in positioning regulation ring；The distance between some positioning screws, the imaging sensor for adjusting microlens array and camera are provided between the firm banking, positioning regulation ring and cover plate three；Some fastening screws and some tie down screws are provided between the cover plate and positioning regulation ring, wherein fastening screw is used for securing cover plate and positioning regulation ring, tie down screw locks nut use, for the distance between imaging sensor of locked microlens array and camera.The present invention has the advantages that positioning precision is high, safe and reliable, adaptability is good and cost is cheap.
Description
Technical field
The present invention relates to a kind of positioner, more particularly, to a kind of high-accuracy microlens array detent mechanism of micron order.
Background technology
According to optical field imaging principle, microlens array need to be accurately arranged on apart from hundreds of microns of camera image sensor
Position, to gather the position of space light and strength information, and then realize single image sensor to space object 3-D view
Shooting.To obtain the 3-D view of high quality, it is desirable to which installation accuracy of the microlens array along optical axis direction is less than 1 micron, together
When microlens array plane and image sensor plane deflection angle be less than 5 degree.In addition, existing all types of camera image sensings
Narrow space between device and main lens, to avoid damage to camera body inherent structure, it is desirable to which detent mechanism is meeting high accuracy
Under conditions of positioning, highly integrated, reduction own dimensions are realized.
Chinese patent CN201203707U discloses apparatus for positioning accurate optical axis of atmosphere laser communication system, is connect by optics
Receipts shrink beam device, galvanometer, galvanometer controller, parallel light tube and high frame rate CCD, Amici prism and Hartmann sensor optical axis are accurate
Positioning unit is formed.For in atmosphere laser communication system, phenomena such as skew for hot spot, speckle, sensed based on Hartmann
On the basis of device, using the method for the microlens array based on Ze Nike, the accuracy of detection of final optical axis is better than 2MRAD, but should
Patent still can not be realized to be positioned to the high-accuracy microlens array of micron order.
The content of the invention
It is an object of the invention in view of the above-mentioned problems, providing a kind of high-accuracy microlens array localization machine of micron order
Structure, the high-accuracy positioning between microlens array and the imaging sensor of camera and the functional requirement of compact size can be achieved.
The object of the present invention is achieved like this：
A kind of high-accuracy microlens array detent mechanism of micron order, it is characterised in that including firm banking, positioning regulation ring
And cover plate；The firm banking is used to be arranged on camera body；The center of the positioning regulation ring is provided with micro- for installing
The shoulder hole of lens array, the small bore end for positioning the shoulder hole of regulation ring are arranged on firm banking, and the cover plate, which covers, to be positioned
The big nose end of the shoulder hole of regulation ring, the center of cover plate offer central through hole, and the area of the central through hole is less than positioning and adjusted
The area of macropore in ring upper shoulder hole；
Be provided with some positioning screws between the firm banking, positioning regulation ring and cover plate three, the positioning screw according to
It is secondary to be screwed into through cover plate and after positioning regulation ring in the connection screw thread hole of firm banking, adjusted by adjusting the stroke of positioning screw
Save the distance between imaging sensor of microlens array and camera；Some fastenings are provided between the cover plate and positioning regulation ring
Screw rod and some tie down screws, the fastening screw is screwed into the fastening thread hole of positioning regulation ring after passing through cover plate, to cover
Plate and positioning regulation ring between be connected, the tie down screw pass through cover plate after be screwed into positioning regulation ring tapped through hole after abut
In on firm banking, the tie down screw between cover plate and positioning regulation ring is also cased with locking nut, by tightening locking screw
Mother carrys out the distance between imaging sensor of locked microlens array and camera.
Wherein, it is cased with retaining spring on the positioning screw.
Wherein, the shoulder hole of the positioning regulation ring is square opening, in two adjacent hole walls of the big bore ends of shoulder hole
Center have stopper slot, limit spring, the another two phase of the big bore ends of shoulder hole are placed with the stopper slot
Adjacent hole wall is then positioning reference plane.
Wherein, axis of the axis of the limit spring perpendicular to the shoulder hole of positioning regulation ring.
Wherein, the positioning screw is provided with the fine thread that specification is M1.4.
Wherein, the positioning screw, fastening screw and tie down screw are respectively three, and three positioning screws and three locks
Tight screw rod is distributed in isosceles triangle respectively.
Beneficial effects of the present invention are：
(1) positioning precision is high：By using the positioning screw of fine thread, regulation stepping stroke can be controlled at 1 micron
Below；By adjusting the stroke of three positioning screws, the image sensor plane of microlens array and camera can be accurately controlled
Between deflection.
(2) it is safe and reliable：The thickness of the positioning regulation ring of sophisticated design has the function of regulation travel limit, is avoided that micro-
Lens array mutually collides with imaging sensor；Microlens array is in radial and axial all limited locations spring and tie down screw, guarantee
The distance between the microlens array of setting and the image sensor plane of camera will not occur among camera long-time use
Change.
(3) adaptability is good：The present invention is compact to design, can be directly mounted between camera image sensor and main lens,
Any modification need not be made to camera body and camera lens installation sleeve.
(4) cost is cheap：All parts can be processed using ordinary metallic material by Digit Control Machine Tool, produce cost in batches
It is low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the installation diagram of the present invention.
Fig. 3 is the structural representation after present invention installation microlens array.
Embodiment
With reference to specific embodiments and the drawings, the present invention is expanded on further.
As depicted in figs. 1 and 2, the high-accuracy microlens array detent mechanism of a kind of micron order, including firm banking 1, positioning
Regulation ring 2 and cover plate 3.
Firm banking 1 is used to be arranged on camera body, and installation is fixed usually using screw rod.
The center of positioning regulation ring 2 is provided with the shoulder hole 21 for installing microlens array.In the present invention, the shoulder hole 21
For square opening, stopper slot 22 is had at the center of two adjacent hole walls of the big bore ends of shoulder hole 21, described spacing
Limit spring 8 is placed with groove 22, the axis of the limit spring 8 is perpendicular to the axis of the shoulder hole 21 of positioning regulation ring 2, ladder
The adjacent hole wall of another two of the big bore ends in hole 21 is then positioning reference plane.
The center of cover plate 3 offers central through hole 31, and the area of the central through hole 31 is less than the positioning upper shoulder hole of regulation ring 2
The area of macropore in 21.
In use, first firm banking 1 is fixedly mounted on camera body through screw rod.Then, microlens array is arranged on
In shoulder hole 21, then by the placement limit spring 8 in stopper slot 22, the motion of microlens array in the axial direction is limited, with
Ensure the axiality of the imaging sensor of microlens array and camera.Afterwards, cover plate 3 covers the shoulder hole in positioning regulation ring 2
21 big nose end, it is screwed into after passing through cover plate 3 using three fastening screws 6 in the fastening thread hole of positioning regulation ring 2 so that cover plate
3 are connected with positioning regulation ring 2, and cover plate 3, microlens array and the positioning three of regulation ring 2 are assembled into an entirety.This
It is attached entirely through three positioning screws 5 in isosceles triangle distribution with firm banking 1, specifically, positions regulation ring 2
The small bore end of shoulder hole 21 be arranged on firm banking 1, the positioning screw 5 for being cased with retaining spring 9 sequentially passes through cover plate 3 and fixed
It is screwed into after the regulation ring 2 of position in the connection screw thread hole of firm banking 1, now between microlens array and the imaging sensor of camera
Distance is more than the distance of required regulation, then adjusts microlens array and camera by adjusting the stroke of positioning screw 5
The distance between imaging sensor.To prevent from adjusting the trickle change of stroke, the regulation row required for reaching caused by vibrations
Cheng Hou, using three in isosceles triangle be distributed be cased with locking nut tie down screws 7 carry out it is locked, specifically, locking screw
Bar 7 pass through cover plate 3 after be screwed into positioning regulation ring 2 tapped through hole after be connected on firm banking 1, locking nut 4, which is enclosed on, to be located at
, can locked microlens array and camera by tightening locking nut 4 on tie down screw 7 between cover plate 3 and positioning regulation ring 2
The distance between imaging sensor.
To make the present invention realize micron-sized locating effect, positioning screw 5 is provided with the fine thread that specification is M1.4, led to
Precession positioning screw 5 is crossed, minimum 0.3/360 millimeter adjustable range can be achieved.
Claims (5)
1. a kind of high-accuracy microlens array detent mechanism of micron order, it is characterised in that including firm banking (1), positioning regulation
Ring (2) and cover plate (3)；The firm banking (1) is used to be arranged on camera body；Open at the center of the positioning regulation ring (2)
Have for installing the shoulder hole of microlens array (21), the small bore end of the shoulder hole (21) of positioning regulation ring (2), which is arranged on, fixes
On base (1), the cover plate (3) covers the big nose end in the shoulder hole (21) of positioning regulation ring (2), and the center of cover plate (3) is opened
Provided with central through hole (31), the area of the central through hole (31) is less than the face of macropore in positioning regulation ring (2) upper shoulder hole (21)
Product；
Some positioning screws (5) are provided between the firm banking (1), positioning regulation ring (2) and cover plate (3) three, it is described fixed
Position screw rod (5) is screwed into the connection screw thread hole of firm banking (1) after sequentially passing through cover plate (3) and positioning regulation ring (2), passes through tune
The stroke of section positioning screw (5) adjusts the distance between imaging sensor of microlens array and camera；The cover plate (3) and
Some fastening screws (6) and some tie down screws (7) are provided between positioning regulation ring (2), the fastening screw (6) passes through cover plate
(3) it is screwed into after in the fastening thread hole of positioning regulation ring (2), to being connected between cover plate (3) and positioning regulation ring (2), institute
State tie down screw (7) to be connected on firm banking (1) through after being screwed into the tapped through hole of positioning regulation ring (2) after cover plate (3), position
Tie down screw (7) between cover plate (3) and positioning regulation ring (2) is also cased with locking nut (4), by tightening locking nut
(4) the distance between imaging sensor of locked microlens array and camera is carried out；
The shoulder hole (21) of the positioning regulation ring (2) is square opening, in two adjacent holes of the big bore ends of shoulder hole (21)
The center of wall has stopper slot (22), is placed with limit spring (8) in the stopper slot (22), shoulder hole (21) it is big
The adjacent hole wall of another two of bore ends is then positioning reference plane.
2. the high-accuracy microlens array detent mechanism of a kind of micron order according to claim 1, it is characterised in that described fixed
Retaining spring (9) is cased with position screw rod (5).
A kind of 3. high-accuracy microlens array detent mechanism of micron order according to claim 1, it is characterised in that the limit
Axis of the axis of position spring (8) perpendicular to the shoulder hole (21) of positioning regulation ring (2).
4. the high-accuracy microlens array detent mechanism of a kind of micron order according to claim 1, it is characterised in that described fixed
Position screw rod (5) is provided with the fine thread that specification is M1.4.
5. the high-accuracy microlens array detent mechanism of a kind of micron order according to claim 1, it is characterised in that described fixed
Position screw rod (5), fastening screw (6) and tie down screw (7) are respectively three, and three positioning screws (5) and three tie down screws
(7) it is distributed respectively in isosceles triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324201.6A CN105785543B (en) | 2016-05-16 | 2016-05-16 | A kind of high-accuracy microlens array detent mechanism of micron order |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324201.6A CN105785543B (en) | 2016-05-16 | 2016-05-16 | A kind of high-accuracy microlens array detent mechanism of micron order |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105785543A CN105785543A (en) | 2016-07-20 |
| CN105785543B true CN105785543B (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610324201.6A Active CN105785543B (en) | 2016-05-16 | 2016-05-16 | A kind of high-accuracy microlens array detent mechanism of micron order |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107509015A (en) * | 2017-09-18 | 2017-12-22 | 丁志宇 | Optical field imaging device |
| CN108919454B (en) * | 2018-07-18 | 2020-07-07 | 中山新诺科技股份有限公司 | Adjusting mechanism, micro-lens array system and exposure machine |
| CN109348095A (en) * | 2018-09-28 | 2019-02-15 | 魏润杰 | A kind of microlens array positioning mechanism |
| CN116626839B (en) * | 2023-05-30 | 2024-03-29 | 浙江荷湖科技有限公司 | High-precision multi-axis adjusting device for micro lens array |
| CN116381954B (en) * | 2023-06-05 | 2023-09-22 | 河南百合特种光学研究院有限公司 | Gaussian-conversion flat-top ultraviolet laser shaping lens system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2886032B2 (en) * | 1993-04-20 | 1999-04-26 | 株式会社ピーエフユー | Optical adjustment mechanism of image reading device |
| CN2938152Y (en) * | 2006-06-20 | 2007-08-22 | 大瀚光电股份有限公司 | Lens focusing mechanism |
| CN202305959U (en) * | 2011-09-30 | 2012-07-04 | 富港电子（东莞）有限公司 | Adjustable lens holder |
| JP6191111B2 (en) * | 2012-09-28 | 2017-09-06 | セイコーエプソン株式会社 | projector |
| CN103064165A (en) * | 2012-12-25 | 2013-04-24 | 彭中 | Adjusting device for verticality and separation distance between shot and imaging chip |
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Effective date of registration: 20200102 Address after: 201109 room 1103, building 1, No. 951, Jianchuan Road, Minhang District, Shanghai Patentee after: Yimu (Shanghai) Technology Co.,Ltd. Address before: 200240 Dongchuan Road, Shanghai, No. 800, No. Patentee before: SHANGHAI JIAO TONG University |
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Address after: 201100 room 1206, building 1, No. 951, Jianchuan Road, Minhang District, Shanghai Patentee after: Yimu (Shanghai) Technology Co.,Ltd. Address before: 201109 room 1103, building 1, 951 Jianchuan Road, Minhang District, Shanghai Patentee before: Yimu (Shanghai) Technology Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: A positioning mechanism of micron high precision microlens array Effective date of registration: 20220124 Granted publication date: 20180313 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Shanghai Branch Pledgor: Yimu (Shanghai) Technology Co.,Ltd. Registration number: Y2022310000014 |
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Address after: Room 102, 1st Floor, Building 98, No. 1441 Humin Road, Minhang District, Shanghai, 2019; Room 302, 3rd Floor, Building 98; Room 402, 4th Floor, Building 98 Patentee after: Yimu (Shanghai) Technology Co.,Ltd. Address before: 201100 room 1206, building 1, No. 951, Jianchuan Road, Minhang District, Shanghai Patentee before: Yimu (Shanghai) Technology Co.,Ltd. |