Camera optical axis correction device and method for multiple optical components

A technology of optical components and correction devices, which is applied to parts of color TVs, parts of TV systems, electrical components, etc., to achieve the effect of convenient operation, ensure the accuracy of calibration, and improve the efficiency and accuracy of calibration

Active Publication Date: 2021-06-11
深圳中科精工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The previous calibration method is to light up the Sensor, pass through the optical components and the teleconverter, take a picture of the Mark point in the center of the Chart, and manually adjust the positions of the optical components, teleconverter and Chart through the offset of the position of the Sensor’s imaging image. , so that the optical axes coincide, this method basically relies on manual alignment adjustment, without a fixed reference

Method used

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  • Camera optical axis correction device and method for multiple optical components
  • Camera optical axis correction device and method for multiple optical components
  • Camera optical axis correction device and method for multiple optical components

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Example 1: By adjusting the reference Mark point portion 13 while observing, to realize that the central axis A2 of the reference Mark point portion 13 is on the same central optical axis as the center of field of view of the top vision camera 12, the following steps are included:

[0051] S11: Find the Mark point in the center of the Chart through the top vision camera 12, so that the center of view of the top vision camera 12 is consistent with the Chart image 3 The center Mark point coincides;

[0052] S12: Take the central axis A2 of the reference Mark point 13 as the rotation axis, rotate the optical axis calibration jig 1 around the rotation axis in the horizontal direction, and take a picture of the Chart through the top vision camera 12 image 3 Center Mark point imaging, if the field of view center of the top vision camera 12 and Chart image 3 If the central Mark point coincides, it indicates that the central axis A1 where the top vision camera 12 is locat...

Embodiment 2

[0054] Example 2: Adjust the top vision camera 12 by calculating the offset, so that the central axis A2 of the reference mark point 13 is on the same central optical axis as the center of view of the top vision camera 12, including the following steps:

[0055] S11: Taking the central axis A2 of the reference Mark point 13 as the rotation axis, rotate the optical axis calibration jig 1 in turn around the rotation axis in the horizontal direction by angle θ1, angle θ2, and angle θ3, and place the optical axis calibration jig 1 at an angle Shoot Chart at θ1, angle (θ1+θ2), and angle (θ1+θ2+θ3) positions image 3 The central Mark point imaging of the top vision camera 12, the central axis A1 where the center of the field of view of the top vision camera 12, the central axis A2 of the reference Mark point part 13, Chart image 3 The central axis A3 where the central Mark point is located is projected to the same horizontal plane as shown in the image Figure 6 shown;

[0056]...

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Abstract

The invention discloses a camera optical axis correction device for multiple optical components, which comprises an optical axis correction jig and a bottom visual camera arranged below the optical axis correction jig, so that a fixed reference is provided when the optical axis of a camera is corrected, and the relative displacement between a top visual camera of the optical axis correction jig and a reference Mark point part can be adjusted in the X-axis direction and the Y-axis direction, and the calibration accuracy is prevented from being influenced by factors such as errors of the optical axis calibration jig in production. The invention further provides a camera optical axis correction method for the multiple optical components, calibration objects are sequentially corrected according to steps, the steps are simple, the process is clear, operation is convenient, the center Mark point of the Chart graph, the optical axis of a teleconverter, the optical axis of the optical components and the optical axis of the Sensor coincide, and the calibration efficiency and the calibration precision are greatly improved.

Description

technical field [0001] The invention relates to the technical field of camera precision assembly, in particular to a camera optical axis correction device and method for multiple optical components. Background technique [0002] In the packaging process of the camera, it involves the assembly of spare parts such as the image sensor (Sensor), the lens (optical component), and the Chart is used as a target for the Sensor to shoot and collect. When the camera contains multiple optical components, its precise assembly is important System calibration puts higher demands on it. [0003] With the widespread use of AA equipment, more and more cameras have begun to use the AA process, which greatly improves the quality of the camera module and increases the yield rate of the module factory. The premise of high yield output of the equipment is the system calibration of the equipment itself. Accurate and stable production. The so-called AA process, or Active Alignment, is interpreted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N17/00
CPCH04N17/002H04N23/663
Inventor 刘建辉黄辉
Owner 深圳中科精工科技有限公司
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