CN115166927A - Focusing mechanism and method for optical lens assembly - Google Patents
Focusing mechanism and method for optical lens assembly Download PDFInfo
- Publication number
- CN115166927A CN115166927A CN202210832198.4A CN202210832198A CN115166927A CN 115166927 A CN115166927 A CN 115166927A CN 202210832198 A CN202210832198 A CN 202210832198A CN 115166927 A CN115166927 A CN 115166927A
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- focusing
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- clamping jaw
- screw rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 41
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000003384 imaging method Methods 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- 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
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/18—Focusing aids
- G03B13/24—Focusing screens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides an optical lens assembly focusing mechanism and a focusing method thereof, which can solve the problem of inconsistent left and right definition of a camera assembly. The moving mechanism comprises a screw rod, a ball head, a screw rod nut and a motor; the screw rod is arranged along the Z axis and is rotatably arranged on the machine body frame; the screw rod nut is arranged on the screw rod; the motor is arranged on the frame of the machine body and connected with the screw rod; the ball head is fixedly sleeved on the screw rod nut; the ball head is movably arranged in the focusing plate, the focusing plate is linked with the ball head to form a ball hinge, and an imaging SENSOR plate mounting position is arranged on the focusing plate; the moving mechanisms are three groups, and the ball heads of the three groups of moving mechanisms are arranged in a triangular manner; the XY axis displacement platform is fixed on the machine body frame; the lens clamping assembly is arranged on the XY axis displacement platform; the lens clamping assembly comprises a clamping jaw and an installation plate, the installation plate is installed on the XY axis displacement platform, the clamping jaw is installed on the installation plate, and a lens installation hole is formed in the clamping jaw.
Description
Technical Field
The invention relates to a focusing mechanism of an optical lens assembly and a focusing method thereof, which are mainly used for focusing of the optical lens assembly of a camera.
Background
The continuous improvement of camera subassembly definition, 4K and higher definition product are more and more common. However, in actual production, the welding flatness of the photosensitive component and the dimensional accuracy of the lens mount have a little deviation, which can cause the problem that the left and right definition of the camera assembly assembled conventionally is inconsistent.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the optical lens assembly focusing mechanism with a reasonable structural design and the focusing method thereof, which can solve the problem of inconsistent left and right definition of a camera assembly.
The technical scheme adopted by the invention for solving the problems is as follows: an optical lens assembly focusing mechanism, characterized in that: the device comprises a machine body frame, a moving mechanism, a focusing plate, an XY axis displacement platform and a lens clamping assembly; the moving mechanism comprises a screw rod, a ball head, a screw rod nut and a motor; the screw rod is arranged along the Z axis and is rotatably arranged on the frame of the machine body; the screw rod nut is arranged on the screw rod; the motor is arranged on the frame of the machine body and connected with the screw rod; the ball head is fixedly sleeved on the screw rod nut; the ball head is movably arranged in the focusing plate, the focusing plate and the ball head form a ball hinge link, and an imaging SENSOR plate mounting position is arranged on the focusing plate; the moving mechanisms are three groups, and the ball heads of the three groups of moving mechanisms are arranged in a triangular manner; the XY axis displacement platform is fixed on the machine body frame; the lens clamping assembly is arranged on the XY axis displacement platform; the lens clamping assembly comprises a clamping jaw and an installation plate, the installation plate is installed on the XY axis displacement platform, the clamping jaw is installed on the installation plate, and a lens installation hole is formed in the clamping jaw.
The moving mechanism also comprises a mounting seat; the left mounting plate and the right mounting plate are fixedly provided with mounting seats, and the screw rod is rotatably mounted on the mounting seats.
The clamping jaw comprises a fixed clamping jaw and a movable clamping jaw; the fixed clamping jaw is fixedly arranged on the XY axis displacement platform, and the movable clamping jaw is slidably arranged on the fixed clamping jaw.
The movable clamping jaw is elastically connected with the fixed clamping jaw through the elastic assembly.
The elastic component comprises a limiting screw and a spring; the limiting screw is fixed on the fixed clamping jaw, and the movable clamping jaw is sleeved on the limiting screw; the spring is sleeved on the limit screw, one end of the spring is connected with the limit screw, and the other end of the spring is connected with the movable clamping jaw.
The lens clamping assembly further comprises a guide shaft, the guide shaft is fixed on the fixed clamping jaw, and the movable clamping jaw is slidably mounted on the guide shaft.
The ball head is spherical.
The ball head consists of two hemispheroids which are fixed together oppositely.
The machine body frame comprises a bottom plate, a left mounting plate and a right mounting plate; left side mounting panel and right mounting panel are fixed respectively in the left and right sides of bottom plate, the focusing board be located between left mounting panel and the right mounting panel.
A focusing method of a focusing mechanism of an optical lens assembly is characterized in that: the method comprises the following steps: the fixed-focus lens is arranged on the lens clamping assembly, the imaging SENSOR plate is arranged on the focusing plate, and the image is viewed through the display after the focusing plate is electrified; the positions of the ball heads of the three groups of moving mechanisms on the screw rod are adjusted through the work of the motors of the three groups of moving mechanisms, so that the back-and-forth movement and the angle adjustment of the focusing plate are realized, and the position and the angle of an imaging SENSOR plate arranged on the focusing plate are adjusted; when the imaging surface of the imaging SENSOR plate is adjusted to be completely coincident with the imaging surface of the fixed-focus lens, the image displayed on the display can reach a clearest state, and the focusing is finished; and after the focusing is finished, fixing the fixed-focus lens and the imaging SENSOR plate together.
Compared with the prior art, the invention has the following advantages and effects: structural design is reasonable, during the focusing, when adjusting the imaging plane of formation of image SENSOR board and the imaging plane complete coincidence of tight shot, the image that appears on the display can reach a clearest state, and the focusing is accomplished, so just can not appear the inconsistent problem of definition about the camera subassembly.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present invention.
Fig. 3 is a schematic top view of an embodiment of the present invention.
Fig. 4 isbase:Sub>A schematic sectional structure view ofbase:Sub>A-base:Sub>A of fig. 3.
Fig. 5 is a schematic perspective view of the embodiment of the present invention in operation.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
The embodiment of the invention comprises a machine body frame 10, a moving mechanism 20, a focusing plate 30, an XY axis displacement platform 40 and a lens clamping component 50.
The body frame 10 includes a bottom plate 101, a left mounting plate 102, and a right mounting plate 103; the left mounting plate 102 and the right mounting plate 103 are respectively fixed on the left and right sides of the bottom plate 101, and the left mounting plate 102 and the right mounting plate 103 are arranged side by side.
The moving mechanism 20 includes a mounting base 21, a lead screw 22, a ball 23, a lead screw nut 24 and a motor 26.
The left mounting plate 102 and the right mounting plate 103 are both fixedly provided with mounting seats 21; the screw rod 22 is arranged along the Z axis and is rotatably arranged on the mounting seat 21, so that the screw rod 22 is rotatably arranged on the left mounting plate 102 and the right mounting plate 103; as shown in fig. 1, the Z-axis points in the left-right direction. A lead screw nut 24 is mounted on the lead screw 22.
The motor 26 is mounted on the left mounting plate 102 or the right mounting plate 103, and in the embodiment, the motor 26 is mounted on the right mounting plate 103; the motor 26 is connected to the lead screw 22.
The ball head 23 is fixedly sleeved on the screw rod nut 24. The ball head 23 is spherical and is composed of two hemispheres 25, and the two hemispheres 25 are fixed together oppositely.
The ball head 23 is movably mounted in a focusing plate 30, and the focusing plate 30 and the ball head 23 form a ball hinge connection. The moving mechanisms 20 are three groups, the ball heads 23 of the three groups of moving mechanisms 20 are arranged in a triangular mode, and the leveling function is achieved through the principle that 3 points determine a plane. The focusing plate 30 is positioned between the left mounting plate 102 and the right mounting plate 103, and the imaging SENSOR plate mounting position is arranged on the focusing plate 30.
The XY-axis displacement table 40 is fixed to the left mounting plate 102 of the body frame 10 by screws.
The lens clamping assembly 50 is fixed on the XY axis displacement platform 40, and the XY axis displacement platform 40 can drive the lens clamping assembly 50 to move on the XY axis, as shown in fig. 1, the X axis points to the front and back direction, and the Y axis points to the up and down direction.
The lens holder assembly 50 includes a holding jaw, a guide shaft 53, an elastic member, and a mounting plate 56.
The mounting plate 56 is mounted on the XY-axis displacement stage 40.
The clamping jaw is installed on mounting plate 56, and the clamping jaw includes fixed clamping jaw 51 and movable clamping jaw 52, and fixed clamping jaw 51 is fixed mounting on mounting plate 56.
The movable jaw 52 is elastically connected to the fixed jaw 51 by an elastic member. The elastic assembly comprises a limit screw 54 and a spring 55; the limit screw 54 is fixed on the fixed clamping jaw 51, and the movable clamping jaw 52 is sleeved on the limit screw 54; the spring 55 is sleeved on the limit screw 54, one end of the spring is connected with the limit screw 54, and the other end of the spring is connected with the movable clamping jaw 52.
A focusing method of a focusing mechanism of an optical lens assembly comprises the following steps:
before the lens is clamped, the movable clamping jaw 52 is pulled outwards by hand, so that the lens mounting hole position is enlarged, and then the fixed-focus lens 60 is placed in the lens mounting hole position. When the hand is released, the movable clamping jaw 52 moves reversely under the elastic action of the limiting screw 54 and the spring 55, so that the lens mounting vacancy is reduced, and the fixed-focus lens 60 is clamped.
The fixed focus lens 60 is mounted on the lens clamping assembly 50, and the imaging SENSOR board 70 is mounted on the focusing board 30, so that the images can be viewed through the display after the power is on. The position of the ball 23 of the three-group moving mechanism 20 on the lead screw 22 can be adjusted by the operation of the motor 26 of the three-group moving mechanism 20, so that the front and back movement and the angle adjustment of the focusing plate 30 are realized, and the position and the angle of the imaging SENSOR plate 70 mounted on the focusing plate 30 are adjusted. When the imaging plane of the imaging SENSOR plate 70 is adjusted to be completely coincident with the imaging plane of the fixed-focus lens 60, the image displayed on the display reaches a clearest state, and the focusing is completed, so that the problem of inconsistent left and right definitions of the camera assembly cannot occur; after the focusing is completed, the fixed-focus lens 60 and the imaging SENSOR board 70 can be solidified together by glue, and the production of the high-quality camera assembly is completed.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above described contents are merely illustrative of the structures of the present invention. Equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. An optical lens assembly focusing mechanism, characterized in that: the device comprises a machine body frame, a moving mechanism, a focusing plate, an XY axis displacement platform and a lens clamping assembly; the moving mechanism comprises a screw rod, a ball head, a screw rod nut and a motor; the screw rod is arranged along the Z axis and is rotatably arranged on the machine body frame; the screw rod nut is arranged on the screw rod; the motor is arranged on the frame of the machine body and connected with the screw rod; the ball head is fixedly sleeved on the screw rod nut; the ball head is movably arranged in the focusing plate, the focusing plate is linked with the ball head to form a ball hinge, and an imaging SENSOR plate mounting position is arranged on the focusing plate; the moving mechanisms are three groups, and the ball heads of the three groups of moving mechanisms are arranged in a triangular manner; the XY axis displacement platform is fixed on the machine body frame; the lens clamping assembly is arranged on the XY axis displacement platform; the lens clamping assembly comprises a clamping jaw and an installation plate, the installation plate is installed on the XY axis displacement platform, the clamping jaw is installed on the installation plate, and a lens installation hole is formed in the clamping jaw.
2. The optical lens assembly focusing mechanism of claim 1, wherein: the moving mechanism further comprises a mounting seat; the left mounting plate and the right mounting plate are fixedly provided with mounting seats, and the screw rod is rotatably mounted on the mounting seats.
3. The optical lens assembly focusing mechanism of claim 1, wherein: the clamping jaw comprises a fixed clamping jaw and a movable clamping jaw; the fixed clamping jaw is fixedly arranged on the XY axis displacement platform, and the movable clamping jaw is slidably arranged on the fixed clamping jaw.
4. The optical lens assembly focusing mechanism of claim 3, wherein: the movable clamping jaw is elastically connected with the fixed clamping jaw through an elastic assembly.
5. The optical lens assembly focusing mechanism of claim 4, wherein: the elastic component comprises a limit screw and a spring; the limiting screw is fixed on the fixed clamping jaw, and the movable clamping jaw is sleeved on the limiting screw; the spring is sleeved on the limit screw, one end of the spring is connected with the limit screw, and the other end of the spring is connected with the movable clamping jaw.
6. The optical lens assembly focusing mechanism of claim 3, wherein: the lens clamping assembly further comprises a guide shaft, the guide shaft is fixed on the fixed clamping jaw, and the movable clamping jaw is slidably mounted on the guide shaft.
7. The optical lens assembly focusing mechanism of claim 1, wherein: the bulb is spherical.
8. The optical lens assembly focusing mechanism of claim 1, wherein: the bulb consists of two hemispheroids which are fixed together relatively.
9. The optical lens assembly focusing mechanism of claim 1, wherein: the machine body frame comprises a bottom plate, a left mounting plate and a right mounting plate; left side mounting panel and right mounting panel are fixed respectively in the left and right sides of bottom plate, the focusing board be located between left mounting panel and the right mounting panel.
10. A method of focusing an optical lens assembly focusing mechanism as claimed in any one of claims 1 to 9, wherein: the method comprises the following steps: the fixed-focus lens is arranged on the lens clamping assembly, the imaging SENSOR plate is arranged on the focusing plate, and the image is checked through the display after the focusing lens is electrified; the positions of the ball heads of the three groups of moving mechanisms on the screw rod are adjusted through the work of the motors of the three groups of moving mechanisms, so that the back-and-forth movement and the angle adjustment of the focusing plate are realized, and the position and the angle of an imaging SENSOR plate arranged on the focusing plate are adjusted; when the imaging surface of the imaging SENSOR plate is adjusted to be completely coincident with the imaging surface of the fixed-focus lens, the image displayed on the display can reach a clearest state, and the focusing is finished; and after the focusing is finished, fixing the fixed-focus lens and the imaging SENSOR board together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210832198.4A CN115166927A (en) | 2022-07-15 | 2022-07-15 | Focusing mechanism and method for optical lens assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210832198.4A CN115166927A (en) | 2022-07-15 | 2022-07-15 | Focusing mechanism and method for optical lens assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115166927A true CN115166927A (en) | 2022-10-11 |
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ID=83494893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210832198.4A Pending CN115166927A (en) | 2022-07-15 | 2022-07-15 | Focusing mechanism and method for optical lens assembly |
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| Country | Link |
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| CN (1) | CN115166927A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005013755A1 (en) * | 2005-03-22 | 2006-09-28 | Trioptics Gmbh | System composite lens formation method, involves arranging lens on lens surface after application of adhesive, where lens is adjusted on generated optical axis of another lens and adhesive is hardened |
| CN104977693A (en) * | 2015-07-12 | 2015-10-14 | 安徽捷迅光电技术有限公司 | Adjustable imaging mechanism based on transmission platform |
| CN106772890A (en) * | 2017-02-21 | 2017-05-31 | 苏州艾力光电科技有限公司 | A kind of plate type optical erecting device |
| CN108562992A (en) * | 2018-06-20 | 2018-09-21 | 中国人民解放军国防科技大学 | Precise reflector frame based on flexible hinge |
| CN210427908U (en) * | 2019-09-09 | 2020-04-28 | 易通光子(北京)科技有限责任公司 | Three-dimensional optical adjustment frame of high stability of no elastic element |
| CN111458896A (en) * | 2020-04-28 | 2020-07-28 | 中国科学院西安光学精密机械研究所 | Image surface butt joint and coaxial adjusting device and method for full-waveband high-precision zoom optical system |
| CN213423523U (en) * | 2020-11-18 | 2021-06-11 | 深圳市博鑫通科技有限公司 | Automatic debugging equipment for optical fiber collimator |
| CN217821048U (en) * | 2022-07-15 | 2022-11-15 | 杭州晨安科技股份有限公司 | Focusing mechanism of optical lens assembly |
-
2022
- 2022-07-15 CN CN202210832198.4A patent/CN115166927A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005013755A1 (en) * | 2005-03-22 | 2006-09-28 | Trioptics Gmbh | System composite lens formation method, involves arranging lens on lens surface after application of adhesive, where lens is adjusted on generated optical axis of another lens and adhesive is hardened |
| CN104977693A (en) * | 2015-07-12 | 2015-10-14 | 安徽捷迅光电技术有限公司 | Adjustable imaging mechanism based on transmission platform |
| CN106772890A (en) * | 2017-02-21 | 2017-05-31 | 苏州艾力光电科技有限公司 | A kind of plate type optical erecting device |
| CN108562992A (en) * | 2018-06-20 | 2018-09-21 | 中国人民解放军国防科技大学 | Precise reflector frame based on flexible hinge |
| CN210427908U (en) * | 2019-09-09 | 2020-04-28 | 易通光子(北京)科技有限责任公司 | Three-dimensional optical adjustment frame of high stability of no elastic element |
| CN111458896A (en) * | 2020-04-28 | 2020-07-28 | 中国科学院西安光学精密机械研究所 | Image surface butt joint and coaxial adjusting device and method for full-waveband high-precision zoom optical system |
| CN213423523U (en) * | 2020-11-18 | 2021-06-11 | 深圳市博鑫通科技有限公司 | Automatic debugging equipment for optical fiber collimator |
| CN217821048U (en) * | 2022-07-15 | 2022-11-15 | 杭州晨安科技股份有限公司 | Focusing mechanism of optical lens assembly |
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