CN111263034A - Vehicle-mounted camera module focusing device and method - Google Patents
Vehicle-mounted camera module focusing device and method Download PDFInfo
- Publication number
- CN111263034A CN111263034A CN201911039957.6A CN201911039957A CN111263034A CN 111263034 A CN111263034 A CN 111263034A CN 201911039957 A CN201911039957 A CN 201911039957A CN 111263034 A CN111263034 A CN 111263034A
- Authority
- CN
- China
- Prior art keywords
- lens
- camera
- photosensitive chip
- picture
- degree
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- 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
-
- 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
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The invention relates to a vehicle-mounted camera module focusing device which comprises a camera to be assembled, a six-degree-of-freedom assembly manipulator and a picture card, wherein the camera to be assembled comprises a camera shell, the front end of the camera shell is provided with a lens clamped on the six-degree-of-freedom assembly manipulator, the rear end in the camera shell is provided with a photosensitive chip circuit board, the photosensitive chip circuit board is electrically connected with external monitoring equipment, the picture card is arranged in front of the projection of the lens, the six-degree-of-freedom assembly manipulator adjusts and focuses the lens, and external glue spraying equipment fills rapid hardening glue in a gap between the lens and the front end of the camera shell to form fixed connection. The invention also discloses a focusing method of the vehicle-mounted camera module, which comprises the processes of lens positioning, focusing, angle adjusting, aligning, dispensing and fixing and the like. The invention adopts the six-degree-of-freedom mechanical arm to automatically and quickly adjust and glue to fix the position relation between the lens and the photosensitive chip, and has the characteristics of automation, high efficiency and small error.
Description
Technical Field
The invention relates to a focusing device and a method for a camera module, in particular to an automatic and rapid focusing device and a method for a vehicle-mounted camera module, and belongs to the field of automotive electronics.
Background
The vehicle-mounted camera module mainly comprises a lens, a shell and a photosensitive chip, and a traditional lens focusing process adopts a screw tooth structure on the outer wall of the lens, a photosensitive chip circuit board is locked on the shell in advance by screws, the shell is matched with the lens through threads, and the depth of the lens in the shell is rotationally adjusted to control the distance between the lens and the photosensitive chip, so that the clearest imaging position is found.
Disclosure of Invention
The invention discloses a novel scheme for a vehicle-mounted camera module focusing device and a method, which adopts a six-degree-of-freedom manipulator to automatically and quickly adjust and glue to fix the position relation between a lens and a photosensitive chip, and solves the problems of inconvenient installation and large installation error caused by a thread combination mode in the conventional scheme.
The invention discloses a vehicle-mounted camera module focusing device which comprises a camera to be assembled, a six-degree-of-freedom assembling manipulator and a graphic card, wherein the camera to be assembled comprises a camera shell, the front end of the camera shell is provided with a lens clamped on the six-degree-of-freedom assembling manipulator, the rear end in the camera shell is provided with a photosensitive chip circuit board, the photosensitive chip circuit board is electrically connected with external monitoring equipment, the graphic card is arranged in front of the projection of the lens, the six-degree-of-freedom assembling manipulator positions and focuses the lens, and the external glue spraying equipment fills rapid hardening glue in a gap between the lens and the front end of the camera shell to form fixed connection.
The invention also discloses a focusing method of the vehicle-mounted camera module, which comprises the steps of ⑴ starting a photosensitive chip circuit board, monitoring and scanning a picture to display a pure color image, ⑵ clamping a lens by a six-degree-of-freedom mechanical arm to adjust the distance relative to the photosensitive chip, enabling the lens to gradually approach the photosensitive chip, gradually changing the monitoring and scanning picture from the pure color image to a fuzzy image card image to finish rough positioning of the lens height, ⑶ clamping the lens by the six-degree-of-freedom mechanical arm to perform translation adjustment relative to the image card, gradually aligning the center of the image card to the geometric center position of imaging of the photosensitive chip, gradually approaching the center of the image card image on the monitoring and scanning picture to the central position of a display picture to finish primary identification of the center of the image card, ⑷ clamping the lens by the six-degree-of-freedom mechanical arm to perform scanning, determining the center of the image and the lens position parameter corresponding to the clear display by monitoring and scanning the picture, calculating the inclination angle of the optical axis of the lens by a three-point linear slope algorithm, reversely rotating the lens clamping the lens with the optical center of the lens as a rotating shaft to eliminate the inclination angle, finishing adjustment of the optical axis angle of the lens, ⑸ clamping the lens to perform scanning focal length adjustment of the camera lens, determining whether the camera module is in the imaging center of the imaging center of the camera card, and the camera card, determining the camera module, and identifying the camera module, and determining whether the camera module, and identifying the camera module.
Further, in the step ⑷ of the method of the present embodiment, the three-point fitting straight line slope algorithm determines the inclination angle of the optical axis of the current lens according to the phenomenon that the peak values of the sharpness scan curves are staggered, and by using the included angle between the horizontal plane and the connecting line of the lens height coordinates corresponding to the sharpness peak values of the three points on the same straight line on the monitored and scanned image.
Further, in step ⑺ of the method, the filled rapid-hardening glue is irradiated by high-power ultraviolet light, and the rapid-hardening glue is solidified within 5 seconds to form the anti-drawing force of more than 30 newtons.
And the method further comprises the step of detecting the imaging picture of the camera again after the ⑻ filled quick-setting glue is cured, so as to finish the imaging effect check.
The vehicle-mounted camera module focusing device and the method adopt a six-degree-of-freedom manipulator to automatically and quickly adjust and glue to fix the position relation between the lens and the photosensitive chip, and have the characteristics of automation, high efficiency and small error.
Drawings
Fig. 1 is a schematic diagram of a vehicle-mounted camera module focusing device.
FIG. 2 is a schematic diagram of a three-point fit straight-line slope algorithm.
Fig. 3 is a flowchart of a focusing method of the vehicle-mounted camera module.
Wherein, 1 is the picture card, 2 is the field of vision scope of camera lens, 3 is the camera lens, 4 is rapid hardening glue, 5 is the camera casing, 6 is sensitization chip circuit board.
In fig. 2, when there is an angle error between the lens and the photosensitive chip, the peak values of the sharpness scan curves are staggered, the heights of the lenses corresponding to the sharpness peak values of three points on the same straight line of the image are connected to form a line, and the included angle between the lens and the horizontal plane is the angle of the current inclination of the optical axis of the lens.
Detailed Description
The invention discloses a vehicle-mounted camera module focusing device which comprises a camera to be assembled, a six-degree-of-freedom assembling manipulator and a graphic card, wherein the camera to be assembled comprises a camera shell, the front end of the camera shell is provided with a lens clamped on the six-degree-of-freedom assembling manipulator, the rear end in the camera shell is provided with a photosensitive chip circuit board, the photosensitive chip circuit board is electrically connected with external monitoring equipment, the graphic card is arranged in front of the projection of the lens, the six-degree-of-freedom assembling manipulator positions and focuses the lens, and the external glue spraying equipment fills rapid hardening glue in a gap between the lens and the front end of the camera shell to form fixed connection.
The invention also discloses a focusing method of the vehicle-mounted camera module, which comprises the steps of ⑴ starting a photosensitive chip circuit board, monitoring and scanning a picture to display a pure color image, ⑵ clamping a lens by a six-degree-of-freedom mechanical arm to adjust the distance relative to the photosensitive chip, enabling the lens to gradually approach the photosensitive chip, gradually changing the monitoring and scanning picture from the pure color image to a fuzzy image card image to finish rough positioning of the lens height, ⑶ clamping the lens by the six-degree-of-freedom mechanical arm to perform translation adjustment relative to the image card, gradually aligning the center of the image card to the geometric center position of imaging of the photosensitive chip, gradually approaching the center of the image card image on the monitoring and scanning picture to the central position of a display picture to finish primary identification of the center of the image card, ⑷ clamping the lens by the six-degree-of-freedom mechanical arm to perform scanning, determining the center of the image and the lens position parameter corresponding to the clear display by monitoring and scanning the picture, calculating the inclination angle of the optical axis of the lens by a three-point linear slope algorithm, reversely rotating the lens clamping the lens with the optical center of the lens as a rotating shaft to eliminate the inclination angle, finishing adjustment of the optical axis angle of the lens, ⑸ clamping the lens to perform scanning focal length adjustment of the camera lens, determining whether the camera module is in the imaging center of the imaging center of the camera card, and the camera card, determining the camera module, and identifying the camera module, and determining whether the camera module, and identifying the camera module.
According to the scheme, the position relation between the lens and the photosensitive chip is fixed in a six-degree-of-freedom mechanical arm automatic, quick adjustment and gluing mode, the vertical arrangement mode shown in the figure 1 is taken as an example, the lens is clamped on at most six-degree-of-freedom high-precision mechanical arms, the photosensitive chip is fixed under a plane graph card to serve as a reference position, the lens actively searches the position of the photosensitive chip according to the mechanical arm, the imaging state of the current position is calculated in real time, when the imaging effect is optimal, the lens and the shell are fixed by using special glue capable of being instantly cured to keep the position, and the assembly between the lens and the camera shell is completed. The six-degree-of-freedom manipulator can adopt the existing precision manipulator capable of realizing six-degree-of-freedom motion, and the related defocusing curve and the function description thereof are also the existing technical means, so that the repeated description is not needed. Based on the above, the scheme has the characteristic of high automation, the operation efficiency is greatly improved, and the assembly error is reduced.
In order to obtain the inclination angle of the optical axis of the lens, the scheme adopts a three-point fitting straight line slope algorithm, specifically, the inclination angle of the optical axis of the current lens can be determined by utilizing the included angle between a connecting line of lens height coordinates corresponding to definition peaks of three points in the same straight line on a monitoring scanning image and a horizontal plane according to the phenomenon of staggering of the definition scanning curve peaks. The other calculation steps and the selection of parameters involved in the above-described scheme can be implemented by methods which are publicly known or commonly known.
In order to quickly combine and fix the lens and the camera shell and ensure the connection strength of the lens and the camera shell, ⑺ of the method, high-power ultraviolet light is adopted to irradiate the filled quick-setting glue, the quick-setting glue is solidified within 5 seconds to form the drawing resistance of more than 30 newtons, in order to avoid accidental errors, the assembly quality is further improved, and the method further comprises the step of detecting an imaging picture of the camera again after the quick-setting glue filled in ⑻ is solidified, so that the imaging effect inspection is completed.
The scheme discloses an automatic and rapid focusing process of a vehicle-mounted camera module, and particularly relates to active alignment adjustment between a non-screw lens structure and a photosensitive chip, wherein a lens is clamped on at most 6 high-freedom-degree and high-precision mechanical arms, the photosensitive chip is fixed under a plane graph card to serve as a reference position, the lens actively searches the position of the relative photosensitive chip according to a mechanical arm, the imaging state of the current position is calculated in real time, when the imaging effect is optimal, the lens and a shell are fixed by special glue capable of being instantly cured to keep the position, and assembly between the lens and the shell is completed. The process mainly comprises the following steps: starting a photosensitive chip, imaging because no lens is arranged above the photosensitive chip, displaying a pure color image on a picture at the moment, carrying out height scanning by a six-degree-of-freedom manipulator clamping lens, when the lens is gradually close to the photosensitive chip from a distance, changing the picture from the pure color image into a blurry shot image content, finishing the rough positioning step of the lens height, carrying out primary identification on the center of a graphic card under the blurry state of the image to enable the center of the graphic card to be approximately aligned to the geometric center position of the imaging of the photosensitive chip, then carrying out focal length scanning to find the heights corresponding to the clearest points of the center and four corners of the image, calculating by a three-point fitting linear slope algorithm to obtain the inclination angle of the optical axis of the lens, reversely rotating the optical axis of the manipulator clamping lens by taking the optical center of the lens as a rotating shaft, finishing the adjustment of the angle of the optical axis of the lens, the method comprises the steps of identifying the coordinates of a central image point of a graphic card in a clear picture, aligning the central image point of the graphic card with the geometric center of a photosensitive chip by a translation lens according to the pixel size of the photosensitive chip, then judging distortion consistency, identifying the coordinates of a four-corner diagram symmetrical in position in the picture, calculating the distance from each coordinate to the center, judging whether the lengths of the four-corner pixels are within specifications or not, then dispensing and curing, wherein a gap exists between the lens and a shell at the moment, glue is required to be filled, high-power ultraviolet irradiation is carried out, the glue can be solidified within 5 seconds and has the pull-out resistance of more than 30 newtons, finally, imaging effect inspection is carried out, and secondary detection is required to be carried out on an imaging picture of a camera after the.
Based on the above contents, the scheme has the following characteristics that ⑴ scheme is not limited by the angle of view of a lens and the distance of a graphic card, the lens can be clamped by a small clamping jaw, the space for installing a distance-increasing lens is provided, the requirement of remote focusing is met, ⑵ scheme uses a six-degree-of-freedom precision mechanical arm for active alignment, the angle error between the appearance and the actual optical axis caused by lens assembly can be compensated, ⑶ scheme does not need threaded fixation of the lens and a shell, the problems of unstable lens fixation and air tightness caused by threaded gaps are solved, and ⑷ scheme has simpler process flow and time efficiency in large-scale production of vehicle-mounted camera modules.
The system, the device, the module and the like disclosed in the present disclosure may be implemented by using general and customary schemes known in the art, and the involved algorithms may use known general and customary algorithms, or may be modified as appropriate according to specific situations.
The focusing device and method for the vehicle-mounted camera module are not limited to the contents disclosed in the specific embodiment, the technical solutions presented in the embodiments can be extended based on the understanding of the skilled in the art, and the simple alternative solutions made by the skilled in the art according to the solution in combination with common general knowledge also belong to the scope of the solution.
Claims (5)
1. The vehicle-mounted camera module focusing device is characterized by comprising a camera to be assembled, a six-degree-of-freedom assembling manipulator and a picture card, wherein the camera to be assembled comprises a camera shell, a lens clamped on the six-degree-of-freedom assembling manipulator is arranged at the front end of the camera shell, a photosensitive chip circuit board is arranged at the rear end in the camera shell and electrically connected with external monitoring equipment, the picture card is arranged in front of the visual field of the lens, the six-degree-of-freedom assembling manipulator positions and focuses the lens, and rapid-setting glue is filled in a gap between the lens and the front end of the camera shell by external glue spraying equipment to form fixed connection.
2. The focusing method of the vehicle camera module of the focusing apparatus of the vehicle camera module according to claim 1, comprising the steps of:
⑴ starting the photosensitive chip circuit board to monitor the scanning picture to display pure color image;
⑵ six-degree-of-freedom manipulator clamps the lens to adjust the distance relative to the photosensitive chip, the lens approaches the photosensitive chip gradually, the monitoring scanning picture is changed from pure color image to fuzzy image of the graphic card gradually, and the coarse positioning of the lens height is completed;
⑶ six-degree-of-freedom manipulator clamping lens for translational adjustment relative to the position of the graphic card, the center of the graphic card gradually aligning to the geometric center position of the imaging of the photosensitive chip, and monitoring the center of the graphic card image on the scanning picture to gradually approach the center position of the display picture, so as to complete the primary identification of the center of the graphic card;
⑷ the six-freedom manipulator clamping lens carries out focal length scanning, the corresponding lens position parameters when the center and four corners of the image are displayed clearly are determined by monitoring the scanning picture, the inclination angle of the lens optical axis is calculated by a three-point fitting straight line slope algorithm, the six-freedom manipulator clamping lens reversely rotates and levels by taking the lens optical center as a rotating shaft to eliminate the inclination angle, and the adjustment of the lens optical axis angle is completed;
⑸ six-degree-of-freedom mechanical arm clamps the lens to perform focal length scanning, confirms that the photosensitive chip is in the clearest focal plane of the lens imaging through the defocusing curve, identifies the central image point coordinate of the image card in the clear picture, and translates the lens to align the central image point of the image card with the geometric center of the photosensitive chip according to the pixel size of the photosensitive chip;
⑹ identifying coordinates of four corners of the symmetrical graph card in the monitoring picture, calculating the distance from each coordinate to the center of the monitoring picture, judging whether the pixel length of the four corners is within the specification, and finishing the judgment of distortion consistency;
⑺ filling quick-setting glue in the gap between the lens and the front end of the camera shell by using external glue spraying equipment to finish glue dispensing and curing.
3. The focusing method for the vehicle-mounted camera module according to claim 2, wherein the slope algorithm of the three-point fitting straight line in the step ⑷ is to determine the current inclination angle of the optical axis of the lens by using the included angle between the line and the horizontal plane formed by connecting the height coordinates of the lens corresponding to the sharpness peaks of the three points on the same straight line on the monitored and scanned image according to the phenomenon of the staggering of the sharpness scanning curve peaks.
4. The focusing method for the vehicle-mounted camera module as claimed in claim 2, wherein in step ⑺, the filled quick-setting glue is irradiated by high-power ultraviolet light, and the quick-setting glue is solidified within 5 seconds to form the anti-drawing force of more than 30 newtons.
5. The method for focusing the vehicle-mounted camera module according to claim 2, further comprising the steps of:
⑻, after the rapid hardening glue filled in the camera is solidified, the imaging picture of the camera is detected again, and the imaging effect check is completed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019207725058 | 2019-05-27 | ||
| CN201920772505 | 2019-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111263034A true CN111263034A (en) | 2020-06-09 |
| CN111263034B CN111263034B (en) | 2021-06-15 |
Family
ID=70950182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911039957.6A Active CN111263034B (en) | 2019-05-27 | 2019-10-29 | Focusing method for vehicle-mounted camera module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111263034B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866571A (en) * | 2021-01-08 | 2021-05-28 | 深圳睿晟自动化技术有限公司 | Lens focusing method and device, terminal and computer readable storage medium |
| CN117714865A (en) * | 2024-02-05 | 2024-03-15 | 福州锐景达光电科技有限公司 | Focusing method of camera module and focusing system of camera module |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662293A (en) * | 2012-05-21 | 2012-09-12 | 信利光电(汕尾)有限公司 | Close-range focusing device and method |
| US20130147968A1 (en) * | 2011-12-13 | 2013-06-13 | Hon Hai Precision Industry Co., Ltd. | Testing method for camera |
| CN104574419A (en) * | 2015-01-28 | 2015-04-29 | 深圳市安健科技有限公司 | Lens distortion parameter calibration method and system |
| CN105445885A (en) * | 2015-10-30 | 2016-03-30 | 宁波舜宇光电信息有限公司 | Adjustable optical lens and shooting module, and manufacturing method for the adjustable optical lens and the shooting module |
| CN106644410A (en) * | 2016-12-21 | 2017-05-10 | 信利光电股份有限公司 | Camera module optical center position measuring method and system |
| CN106937028A (en) * | 2015-12-30 | 2017-07-07 | 南昌欧菲光电技术有限公司 | Camera module assemble method and camera module |
| 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 |
| CN107656418A (en) * | 2016-07-26 | 2018-02-02 | 宁波舜宇光电信息有限公司 | The test of adjustable focus camera module inclined light shaft and computational methods |
| CN108581869A (en) * | 2018-03-16 | 2018-09-28 | 深圳市策维科技有限公司 | A kind of camera module alignment methods |
| CN109451237A (en) * | 2018-11-13 | 2019-03-08 | 信利光电股份有限公司 | A kind of focusing AA method and apparatus of camera module |
-
2019
- 2019-10-29 CN CN201911039957.6A patent/CN111263034B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130147968A1 (en) * | 2011-12-13 | 2013-06-13 | Hon Hai Precision Industry Co., Ltd. | Testing method for camera |
| CN102662293A (en) * | 2012-05-21 | 2012-09-12 | 信利光电(汕尾)有限公司 | Close-range focusing device and method |
| CN104574419A (en) * | 2015-01-28 | 2015-04-29 | 深圳市安健科技有限公司 | Lens distortion parameter calibration method and system |
| CN105445885A (en) * | 2015-10-30 | 2016-03-30 | 宁波舜宇光电信息有限公司 | Adjustable optical lens and shooting module, and manufacturing method for the adjustable optical lens and the shooting module |
| CN106937028A (en) * | 2015-12-30 | 2017-07-07 | 南昌欧菲光电技术有限公司 | Camera module assemble method and camera module |
| 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 |
| CN107656418A (en) * | 2016-07-26 | 2018-02-02 | 宁波舜宇光电信息有限公司 | The test of adjustable focus camera module inclined light shaft and computational methods |
| CN106644410A (en) * | 2016-12-21 | 2017-05-10 | 信利光电股份有限公司 | Camera module optical center position measuring method and system |
| CN108581869A (en) * | 2018-03-16 | 2018-09-28 | 深圳市策维科技有限公司 | A kind of camera module alignment methods |
| CN109451237A (en) * | 2018-11-13 | 2019-03-08 | 信利光电股份有限公司 | A kind of focusing AA method and apparatus of camera module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866571A (en) * | 2021-01-08 | 2021-05-28 | 深圳睿晟自动化技术有限公司 | Lens focusing method and device, terminal and computer readable storage medium |
| CN117714865A (en) * | 2024-02-05 | 2024-03-15 | 福州锐景达光电科技有限公司 | Focusing method of camera module and focusing system of camera module |
| CN117714865B (en) * | 2024-02-05 | 2024-04-16 | 福州锐景达光电科技有限公司 | Focusing method of camera module and focusing system of camera module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111263034B (en) | 2021-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017088469A1 (en) | High-precision automatic optical detection system and method based on mechanical arm | |
| US10996422B2 (en) | Camera module and method for assembling same | |
| CN111263034A (en) | Vehicle-mounted camera module focusing device and method | |
| CN102789111A (en) | Lens calibration system and method thereof | |
| CN109442170B (en) | CCD adjustment mechanism | |
| CN104315978A (en) | Method and device for measuring pipeline end face central points | |
| CN109348129A (en) | A kind of the clarity detection method and system of cameras with fixed focus | |
| US8786713B1 (en) | Fixture for aligning auto-focus lens assembly to camera sensor | |
| JP2007528161A (en) | Camera manufacturing apparatus and camera apparatus | |
| CN111598836B (en) | System and method for adjusting position and angle of optical fiber based on machine vision | |
| CN109131082A (en) | A kind of monocular panorama based entirely on vision is parked image system and its method of parking | |
| CN103096006B (en) | A kind of projector equipment and projected picture correcting method thereof | |
| CN114292021A (en) | System and method for adjusting preform rod in real time in quartz optical fiber drawing process | |
| CN106657982B (en) | A kind of camera module image clarity calibration method and device | |
| CN106131436B (en) | A kind of the focusing test device and focusing test method of aerial camera | |
| CN111596425A (en) | Automatic light focusing system for collimator to focus light | |
| CN111770329B (en) | Method for correcting position of photosensitive element | |
| CN114114564B (en) | Space light-optical fiber coupling device and method based on visual detection | |
| CN109064513A (en) | The automatic calibration algorithm of six degree of freedom in a kind of encapsulation of camera | |
| CN110244428B (en) | Lens assembling method and system | |
| CN109581619B (en) | Automatic focus detection device and aerial camera | |
| CN113008138A (en) | Product processing positioning system and method based on visual identification technology | |
| CN210141980U (en) | Calibration device | |
| CN207516545U (en) | A kind of laser module light path automates regulating device | |
| CN219347646U (en) | 3D visual inspection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |