Camera module test method, device, test drawing board and system

A technology of camera module and test method, which is applied in image communication, television, electrical components, etc., can solve the problems of low definition of calibration reference image and affect the accuracy of OIS calibration results, so as to improve accuracy, improve black-and-white contrast, The effect of ensuring focus accuracy

Pending Publication Date: 2021-12-10
KUNSHAN Q TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Focusing the camera module is an important step in OIS calibration. You need to move the camera module to the clear image position of the test chart to focus, and then perform OIS calibration. If the focus fails

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  • Camera module test method, device, test drawing board and system
  • Camera module test method, device, test drawing board and system
  • Camera module test method, device, test drawing board and system

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[0037] In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification will be described in detail below with reference to the accompanying drawings and specific embodiments. The detailed description of the technical solutions of the embodiments is not a limitation on the technical solutions of the present specification, and the embodiments of the present specification and the technical features in the embodiments may be combined with each other under the condition of no conflict.

[0038] figure 1 An exemplary camera module testing system provided by the embodiment of the present specification is shown, and the camera module testing system includes: a vibration table 101 , a test drawing board 102 , and a host computer 103 . The host computer 103 is respectively connected to the shaking table 101 and the camera module to be tested 104, and is used to execute...

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Abstract

The invention discloses a camera module test method, device, test drawing board and system, and the method comprises the steps: presetting a test template which comprises a black block and a plurality of black and white alternate annular regions surrounding the periphery of the black block, controlling a camera module to shoot the test drawing board, and adjusting the position of a lens of the camera module till the shooting definition meets a preset focusing condition; and then employing the test drawing board for carrying out optical anti-shake calibration on the focused camera module, so the focusing precision is ensured, and the reliability of OIS calibration is improved.

Description

technical field [0001] The invention relates to the technical field of product testing, in particular to a camera module testing method, device, testing board and system. Background technique [0002] With the gradual maturity of Optical Image Stabilization (OIS) technology of mobile phone camera modules, most of the flagship mobile phones on the market now have the OIS function. In order to ensure the normal use of the OIS function, the camera module with the OIS function needs to be OIS calibrated before leaving the factory. Focusing the camera module is an important step in OIS calibration. You need to move the camera module to the clear image position of the test chart to focus, and then perform OIS calibration. If the focus fails or is not accurate enough, it will lead to a non-vibrating state The resolution of the calibration reference image collected under the lower conditions is low, which affects the accuracy of the OIS calibration results. Contents of the invent...

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Application Information

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IPC IPC(8): H04N17/00
CPCH04N17/002
Inventor 王杰
Owner KUNSHAN Q TECH CO LTD
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