CN112987218A - Optical center calibration device and method - Google Patents
Optical center calibration device and method Download PDFInfo
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- CN112987218A CN112987218A CN202110171663.XA CN202110171663A CN112987218A CN 112987218 A CN112987218 A CN 112987218A CN 202110171663 A CN202110171663 A CN 202110171663A CN 112987218 A CN112987218 A CN 112987218A
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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
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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
- G03B43/00—Testing correct operation of photographic apparatus or parts thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/80—Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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Abstract
The invention provides an optical center calibration device and a method, the optical center calibration device comprises a fixing jig, a calibration camera and a relay lens, the fixing jig comprises a first supporting piece and a second supporting piece, the second supporting piece is fixed on the first supporting piece, the relay lens is used for being installed on the first supporting piece, the calibration camera is used for being installed on the second supporting piece, when the calibration camera is installed on the second supporting piece, a lens of the calibration camera faces towards the first supporting piece or the lens of the calibration camera faces towards the opposite direction of the first supporting piece, and the center of the lens of the calibration camera and the center of the relay lens are located on the same straight line. The optical center calibration device and the optical center calibration method finish the calibration of the optical component to be calibrated and the reference image through one calibration camera, save space and improve the convenience and precision of the calibration.
Description
Technical Field
The invention belongs to the technical field of optical component assembly, and particularly relates to an optical center calibration device and method.
Background
The digital camera integrates optical, mechanical and electronic products, integrates components of image information conversion, storage, transmission and the like, and has the characteristics of digital access mode, interactive processing with a computer, real-time shooting and the like. Light enters the camera through the camera module, is converted into a digital signal through the imaging element of the digital camera, and the digital signal is stored in the storage device through the image operation chip.
The center of a reference picture shot by a camera of a digital camera module needs to be aligned with the center of an optical axis of a lens module in the assembling process, so that the distortion and the brightness attenuation effect of a shot image can be reduced to the minimum. In the prior art, the center of an image shot by a digital camera and the center of an optical axis of a lens module are respectively positioned by two cameras, calibration between the cameras is complicated, and precision is not easy to guarantee.
Disclosure of Invention
The embodiment of the invention aims to provide an optical center calibration device to solve the technical problems of calibration complexity and difficulty in ensuring precision caused by the fact that a plurality of cameras are needed in calibration of optical components in the prior art.
Another object of the embodiments of the present invention is to provide a method for calibrating an optical center, so as to solve the technical problems of calibration complexity and difficulty in ensuring precision caused by the need of calibrating a plurality of cameras in calibration of an optical component in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the invention provides an optical center calibration device in a first aspect, which comprises a fixed jig, a calibration camera and a relay lens;
the fixing jig comprises a first supporting piece and a second supporting piece, the second supporting piece is fixed on the first supporting piece, the relay lens is used for being installed on the first supporting piece, and the calibration camera is used for being installed on the second supporting piece;
when the calibration camera is mounted on the second support piece, the lens of the calibration camera faces the first support piece or the lens of the calibration camera faces the opposite direction of the first support piece, and the center of the lens of the calibration camera and the center of the relay lens are located on the same straight line.
In one embodiment, the cross section of the first support part is of a circular ring structure, the second support part is of a plate structure, the first support part and the second support part are vertically arranged, and a groove for clamping the second support part is formed in the end face of the first support part.
In one embodiment, the relay device further comprises a rotary driving structure connected with the first support, and the rotary driving structure is used for driving the first support to rotate around the central line of the relay lens.
In one embodiment, the calibration device further comprises a sliding block, the sliding block is used for fixing the calibration camera, and the sliding block is detachably connected with the second support.
In one embodiment, the second support member has a sliding groove for being engaged with the sliding block, and the sliding groove has a limiting surface for limiting the sliding block to move in the vertical direction.
In one embodiment, the first support member has an opening, a bolt for tightly abutting against the slider is disposed at the opening, and a blind hole for receiving the top of the bolt is disposed at a position of the slider corresponding to the opening.
In one embodiment, the first support and the second support are both metal pieces.
A second aspect of the present invention provides an optical center calibration apparatus using the optical center calibration apparatus described above, the optical center calibration method including:
selecting a first center of an optical component to be calibrated and a second center of a reference image;
calibrating a first reference center by using a calibration camera and taking a first center of the optical component to be calibrated as a reference;
moving the first center of the optical component to be calibrated to a first reference center;
calibrating a second reference center by using a second center of the reference image as a reference through the calibration camera;
moving a second center of the reference image to the second reference center.
In one embodiment, the calibrating, by the calibration camera, a first reference center with reference to a first center of the optical component to be calibrated includes:
aligning the calibration camera to the first center and shooting;
and rotating the fixed jig at least three times, shooting, and fitting and calibrating the first reference center according to the shot image.
In one embodiment, said calibrating, by said calibration camera, a second reference center with respect to a second center of said reference image comprises:
aligning the calibration camera to the second center and shooting;
and rotating the fixed jig at least three times, shooting, and fitting and calibrating the second reference center according to the shot image.
The optical center calibration device provided by the invention comprises a fixing jig, a calibration camera and a relay lens, wherein the fixing jig comprises a first supporting piece and a second supporting piece, the second supporting piece is fixed on the first supporting piece, the relay lens is arranged on the first supporting piece, the calibration camera is arranged on the second supporting piece, a lens of the calibration camera faces towards the first supporting piece or the lens of the calibration camera faces towards the opposite direction of the first supporting piece, the center of the lens of the calibration camera and the center of the relay lens are positioned on the same straight line, and when the lens of the calibration camera faces towards the direction of the first supporting piece and the opposite direction of the first supporting piece, the center line of the relay lens is taken as a reference.
The optical center calibration method provided by the invention comprises the steps of selecting a first center of an optical component to be calibrated and a second center of a reference image; calibrating a first reference center by using a calibration camera and taking a first center of the optical component to be calibrated as a reference; moving the first center of the optical component to be calibrated to a first reference center; calibrating a second reference center by using a second center of the reference image as a reference through the calibration camera; and moving the second center of the reference image to the second reference center, and completing the calibration of the optical component to be calibrated and the reference image by a calibration camera, so that the space is saved, and the convenience and the precision of the calibration are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an optical center calibration apparatus according to an embodiment of the present invention;
FIG. 2 is an exploded view of an optical center alignment apparatus according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of an optical center calibration method according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-fixing a jig;
2-calibrating a camera;
3-a relay lens;
4-a slide block;
11-a first support;
12-a second support;
13-a bolt;
121-a chute;
122-a limiting surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The following describes the method and apparatus for calibrating an optical center according to the present invention with reference to specific embodiments.
Fig. 1 is a schematic structural diagram of an optical center calibration apparatus according to an embodiment of the present invention, and fig. 2 is a schematic exploded structural diagram of the optical center calibration apparatus according to the embodiment of the present invention, please refer to fig. 1 and fig. 2, a first aspect of the embodiment of the present invention provides an optical center calibration apparatus including a fixing jig 1, a calibration camera 2 and a relay lens 3;
the fixing jig 1 comprises a first support part 11 and a second support part 12, the second support part 12 is mounted on the first support part 11, the relay lens 3 is used for being mounted on the first support part 11, and the calibration camera 2 is used for being mounted on the second support part 12;
when the calibration camera 12 is mounted on the second support 11, the lens of the calibration camera 2 faces the first support 11 or the lens of the calibration camera 2 faces the opposite direction of the first support 11, and the center of the lens of the calibration camera 2 and the center of the relay lens 3 are located on the same straight line.
The fixing fixture 1 of the present embodiment includes a first supporting member 11 and a second supporting member 12, the second supporting member 12 is installed on the first supporting member 11, and the calibration camera is installed on the second supporting member 12, and the material and size of the first supporting member 11 and the second supporting member 12 are not particularly limited in the present embodiment.
When the calibration camera 2 of this embodiment is installed on the second support 12, when the camera of the calibration camera 2 faces the direction of the first support 11, the calibration camera 2 is used to calibrate the optical center in the first direction, when the camera of the calibration camera 2 faces the opposite direction of the first support 11, the calibration camera 2 is used to calibrate the optical center in the second direction, the lens center of the calibration camera 2 and the center of the relay lens 3 are located on the same straight line, when the calibration is performed by using the optical center calibration apparatus of this embodiment, only the orientation of the camera of the calibration camera 2 needs to be adjusted, the convenience of tuning is strong, when the camera of the calibration camera 2 faces the direction of the first support 11, the lens center of the calibration camera 2 and the center of the relay lens 3 are located on the same straight line, when the lens of the calibration camera 2 faces the opposite direction of the first support 11, the lens center of the calibration camera 2 and the center of the relay lens 3 are located on the same straight line, in the two calibration processes, the center line of the relay lens 3 is used as a reference, so that the precision can be ensured. The center pin of this embodiment relay lens 3 is unanimous with the optical axis that needs the calibration, and relay lens 3 need not dismantle the equipment that can directly be used for the camera module when assembling the camera module, can realize using materials on the spot.
The optical center calibration device provided by the embodiment comprises a fixing jig, a calibration camera and a relay lens, wherein the fixing jig comprises a first supporting piece and a second supporting piece, the second supporting piece is fixed on the first supporting piece, the relay lens is installed on the first supporting piece, the calibration camera is installed on the second supporting piece, a lens of the calibration camera faces towards the first supporting piece or a lens of the calibration camera faces towards the opposite direction of the first supporting piece, the center of the lens of the calibration camera and the center of the relay lens are located on the same straight line, and when the lens of the calibration camera faces towards the direction of the first supporting piece and the opposite direction of the first supporting piece, the center line of the relay lens is used as a reference.
In one embodiment of the present application, the cross section of the first supporting member 11 is a circular ring structure, the second supporting member 12 is a plate structure, and the end surface of the first supporting member 11 has a slot for clamping the second supporting member 12. The first support member 11 of this embodiment is in a circular ring structure, which facilitates rotation of the second support member 12 during use. The plate-shaped second supporting member 12 of this embodiment is clamped on the end surface of the first supporting member 11, and then fixed by the fixing member, so that the first supporting member 11 and the second supporting member 12 are fixed more firmly. The second supporting member 12 of this embodiment is a metal member, and the second supporting member 12 has a lightening hole.
Further, the optical center calibration device of this embodiment further includes a rotation driving structure, the rotation driving structure is connected to the first supporting member 11, and the rotation driving structure is configured to drive the first supporting member 11 to rotate around the central line of the relay lens 3. This embodiment is through setting up the rotation driving structure, when rotatory first support piece 11, does not need manual rotation, has improved the efficiency of demarcation.
Further, the optical center calibration device further comprises a sliding block 4, the sliding block 4 is used for fixing the calibration camera 2, the sliding block 4 is used for being mounted on the second support 12, the sliding block 4 is provided with a first plane attached to the second support 12 and a second plane attached to the calibration camera, and the sliding block 4 is detachably connected with the second support 12. The calibration camera 2 of this embodiment is installed on the slider 4, and the slider 4 is installed on the second support 12, and the slider 4 has the first plane of laminating with the second support 12 and the second plane of laminating with the calibration camera for it is firm to laminate with the second support 12 after the calibration camera 2 is installed on the second support 12, has improved the accuracy of calibrating camera 2 in the calibration process.
Preferably, in this embodiment, the second supporting member 12 has a sliding groove 121 for being engaged with the sliding block 4, and the sliding groove 121 has a limiting surface 122 for limiting the sliding block to move in the vertical direction. The sliding block 4 of the embodiment is slidably connected with the second supporting member 12, and when the limiting surface 122 clamps the sliding block 4, the sliding block 4 is installed in place, so that the installation speed can be increased when the camera 2 needs to be calibrated to adjust the direction of the lens. The sliding groove 121 of the embodiment penetrates through the top end of the second supporting part 12, when the lens direction of the calibration camera 2 is adjusted, only the sliding block 4 needs to slide out of the sliding groove 121, the sliding block 4 is rotated by 180 degrees and then the sliding block 4 is installed on the sliding groove 121, and the direction adjusting mode of the calibration camera is simple and rapid.
Furthermore, the second supporting member 12 has an opening, the opening is provided with a bolt 13 for tightly abutting against the sliding block, and a blind hole for accommodating the top of the bolt 13 is formed in a position corresponding to the opening on the sliding block 4. When the sliding block 4 of the embodiment is installed on the second supporting piece 12, the sliding block 4 is tightly abutted through the bolt 13, so that the sliding block 4 is firmly fixed on the second supporting piece 12, the firmness degree of the calibration camera 2 is further improved, and the calibration accuracy of the optical center calibration device is improved.
The optical center calibration device provided by the embodiment of the invention comprises a fixing jig, a calibration camera and a relay lens, wherein the fixing jig comprises a first supporting piece and a second supporting piece, the second supporting piece is fixed on the first supporting piece, the relay lens is arranged on the first supporting piece, the calibration camera is arranged on the second supporting piece, a lens of the calibration camera faces towards the first supporting piece or the lens of the calibration camera faces towards the opposite direction of the first supporting piece, the center of the lens of the calibration camera and the center of the relay lens are positioned on the same straight line, and the center line of the relay lens is used as a reference when the lens of the calibration camera faces towards the direction of the first supporting piece and the opposite direction of the first supporting piece.
Fig. 3 is a schematic flow chart of an optical center calibration method according to an embodiment of the present invention, and please refer to fig. 3, a second aspect of the embodiment of the present invention provides an optical center calibration method, which is described in detail by taking a reference image and an assembly platform in an assembly process of a digital camera as an example. The optical center calibration method adopts the optical center calibration device in the above embodiment, and the optical center calibration method includes:
s101, selecting a first center of an optical component to be calibrated and a second center of a reference image;
specifically, in this step, the optical component to be calibrated is an assembly platform, the reference image is a reference image in an assembly process of the digital camera, and a first center of the optical component and a second center of the reference image in this embodiment are measured by a physical method, for example, a center of an image obtained by shooting the image.
S102, calibrating a first reference center by using a first center of the optical component to be calibrated as a reference through a calibration camera;
specifically, in this step, the calibration camera is aligned to the first center of the optical component to be calibrated, the optical component to be calibrated is photographed after the calibration camera is aligned to the first center of the optical component to be calibrated, the fixed jig is rotated by a preset angle after the photographing is completed, the optical component to be calibrated is continuously photographed after the rotation is completed, a plurality of images of the optical component to be calibrated are obtained after the plurality of images are photographed, the center of each image of the optical component to be calibrated is found, and the first reference center of the optical component to be calibrated is obtained through fitting.
S103, moving the first center of the optical component to be calibrated to a first reference center;
specifically, after the first reference center is obtained, the first center of the optical component to be calibrated is moved to the first reference center.
S104, calibrating a second reference center by using a second center of the reference image as a reference through the calibration camera;
specifically, in the step, the calibration camera is aligned to the second center of the reference image, the reference image is shot after the calibration camera is aligned to the second center of the reference image, the fixture is rotated by a preset angle after shooting is completed, the reference image to be shot is continuously shot after rotation is completed, multiple shot images of the reference image are obtained after multiple shots are taken, the center of each shot image is found, and the second reference center of the reference image is obtained through fitting. For example, after each shooting is completed, the fixed jig may be rotated by 90 degrees and then the shooting may be continued, and the rotation on the relay lens may be repeated 3 times.
And S105, moving the second center of the reference image to the second reference center.
Specifically, after the second reference center is obtained, the second center of the optical component to be calibrated is moved to the second reference center.
S101-S105 in this embodiment are only used to facilitate understanding of implementation steps of this embodiment, in the present invention, step S103 is after step S102, step S105 is after step S104, and in other embodiments, the order of step S104 and step S102 may be changed.
In an embodiment, preferably, calibrating, by the calibration camera, the first reference center with the first center of the optical component to be calibrated as a reference includes:
aligning the calibration camera to the first center and shooting;
and rotating the fixed jig at least three times, shooting, and fitting and calibrating the first reference center according to the shot image.
Preferably, in this embodiment, the calibrating, by the calibration camera, a second reference center with a second center of the reference image as a reference includes:
aligning the calibration camera to the second center and shooting;
and rotating the fixed jig at least three times, shooting, and fitting and calibrating the second reference center according to the shot image.
In the embodiment, the fixture is fixed through multiple rotation, images are shot for multiple times, the influence of the assembly tolerance between the fixture and the relay lens on the calibration center is reduced by using the fitting value of the images shot for multiple times, and the calibration precision is improved.
The optical center calibration method of the embodiment is completed through one calibration camera, the calibration convenience is high, the same calibration camera saves space, the mutual calibration errors of a plurality of cameras are eliminated, the calibration precision is high, the hardware errors are eliminated by matching the first reference center and the second reference center through four times of image shooting, the optical component to be calibrated and the reference image are aligned by using the same reference, and the calibration consistency is good.
The optical center calibration method provided by the embodiment of the invention comprises the steps of selecting a first center of an optical component to be calibrated and a second center of a reference image; calibrating a first reference center by using a calibration camera and taking a first center of the optical component to be calibrated as a reference; moving the first center of the optical component to be calibrated to a first reference center; calibrating a second reference center by using a second center of the reference image as a reference through the calibration camera; and moving the second center of the reference image to the second reference center, and completing the calibration of the optical component to be calibrated and the reference image by a calibration camera, so that the space is saved, and the convenience and the precision of the calibration are improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An optical center alignment device, comprising: the device comprises a fixed jig, a calibration camera and a relay lens;
the fixing jig comprises a first supporting piece and a second supporting piece, the second supporting piece is fixed on the first supporting piece, the relay lens is used for being installed on the first supporting piece, and the calibration camera is used for being installed on the second supporting piece;
when the calibration camera is mounted on the second support piece, the lens of the calibration camera faces the first support piece or the lens of the calibration camera faces the opposite direction of the first support piece, and the center of the lens of the calibration camera and the center of the relay lens are located on the same straight line.
2. The optical center alignment device of claim 1, wherein: the cross section of the first supporting piece is of a circular ring-shaped structure, the second supporting piece is of a plate-shaped structure, the first supporting piece and the second supporting piece are vertically arranged, and the end face of the first supporting piece is provided with a groove for clamping the second supporting piece.
3. The optical center alignment device of claim 2, wherein: the rotary driving structure is connected with the first supporting piece and used for driving the first supporting piece to rotate around the central line of the relay lens.
4. The optical center alignment device of claim 3, wherein: the calibration camera further comprises a sliding block, the sliding block is used for fixing the calibration camera, and the sliding block is detachably connected with the second supporting piece.
5. The optical center alignment device of claim 4, wherein: the second supporting piece is provided with a sliding groove which is used for being embedded with the sliding block, and the sliding groove is provided with a limiting surface which is used for limiting the sliding block to move along the vertical direction.
6. The optical center alignment device of claim 5, wherein: the second supporting piece is provided with an opening, a bolt used for tightly abutting against the sliding block is arranged at the opening, and a blind hole used for accommodating the top of the bolt is formed in the position, corresponding to the opening, of the sliding block.
7. The optical center alignment device of claim 1, wherein: the first support piece and the second support piece are both metal pieces.
8. An optical center calibration method using the optical center calibration device according to any one of claims 1 to 7, the optical center calibration method comprising:
selecting a first center of an optical component to be calibrated and a second center of a reference image;
calibrating a first reference center by using a calibration camera and taking a first center of the optical component to be calibrated as a reference;
moving the first center of the optical component to be calibrated to a first reference center;
calibrating a second reference center by using a second center of the reference image as a reference through the calibration camera;
moving a second center of the reference image to the second reference center.
9. The method for calibrating an optical center according to claim 8, wherein calibrating the first reference center with the first center of the optical component to be calibrated as a reference by the calibration camera comprises:
aligning the calibration camera to the first center and shooting;
and rotating the fixed jig at least three times, shooting, and fitting and calibrating the first reference center according to the shot image.
10. The method of optical center calibration as claimed in claim 8, wherein said calibrating a second reference center with reference to a second center of said reference image by said calibration camera comprises:
aligning the calibration camera to the second center and shooting;
and rotating the fixed jig at least three times, shooting, and fitting and calibrating the second reference center according to the shot image.
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| CN202110171663.XA CN112987218A (en) | 2021-02-08 | 2021-02-08 | Optical center calibration device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110171663.XA CN112987218A (en) | 2021-02-08 | 2021-02-08 | Optical center calibration device and method |
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| CN112987218A true CN112987218A (en) | 2021-06-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101394398B1 (en) * | 2013-02-14 | 2014-05-14 | (주)하이비젼시스템 | Regulator of camera module and setting method of the same |
| CN106997103A (en) * | 2016-01-25 | 2017-08-01 | 深圳市睿晟自动化技术有限公司 | A kind of device and method of rapid alignment minisize optical lens optical axis |
| CN110045477A (en) * | 2019-04-16 | 2019-07-23 | 中国科学院光电技术研究所 | A kind of optical element automatic centering method based on Phase-Resolved Analysis |
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2021
- 2021-02-08 CN CN202110171663.XA patent/CN112987218A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101394398B1 (en) * | 2013-02-14 | 2014-05-14 | (주)하이비젼시스템 | Regulator of camera module and setting method of the same |
| CN106997103A (en) * | 2016-01-25 | 2017-08-01 | 深圳市睿晟自动化技术有限公司 | A kind of device and method of rapid alignment minisize optical lens optical axis |
| CN110045477A (en) * | 2019-04-16 | 2019-07-23 | 中国科学院光电技术研究所 | A kind of optical element automatic centering method based on Phase-Resolved Analysis |
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Application publication date: 20210618 |