A multi-camera module focusing method and system based on near-infrared environment

Abstract

A focusing method and system thereof based on a multi-camera module in a near-infrared environment, the focusing method comprising the following steps: After infrared light reaches a test standard plate, it is reflected and enters each of the cameras of the multi-camera module ; carry out the focusing operation on the camera through the focusing hand wheel; and send the image information collected by each of the cameras to the analysis center for processing, and determine whether to continue the next step of focusing operation or determine the multiple The camera module fails. This method can not only greatly reduce the production cost of the test equipment, simplify the focusing method, and match the special focusing tooling, reduce the damage probability of the test line, but also improve the production probability. Match differences.

Description

technical field [0001] The present invention relates to a camera module focusing method and system thereof, in particular to a multi-camera module focusing method and system based on an infrared environment. Background technique [0002] The camera module is installed on mobile phones, computers, televisions, monitoring equipment or other digital devices for image information collection. Camera modules are generally composed of lenses, lens barrels, lens holders, photosensitive chips, resistors, capacitors, and circuit boards. The lens is installed in the lens barrel, and the lens barrel is screwed together with the lens holder through threads, and the focal length of the camera is adjusted by screwing the lens barrel up and down. Before the camera module leaves the factory, it needs to be focused. When focusing, the usual method is to use light to make the photosensitive chip obtain image data and then transmit it to the computer according to the principle of chip imaging...

AI Technical Summary

Problems solved by technology

[0006] (1) When adjusting the focus on the CCM machine, there will be a phenomenon that the test plate cannot be filled in the test screen, that is to say, because the two cameras are set at intervals and face the test plate, passing through the parallel plane of the test plate It is impossible for light to reach the image sensors of the two cameras, so that the test drawing of each camera can only show part of the test standard;

[0007] (2) When the dual cameras are working at the same time, the actual imaging area of ​​the wide-angle camera above 120° is twice that of the single-lens module; therefore, it is necessary to use a large-area planar light source, which is too heavy for mass production and production costs;

[0008] (3) Due to the use of dual cameras, there will inevitably be differences when the two cameras collect image information, and there are no measures for comparing and processing the differences between multiple cameras in the traditional focusing method;

[0009] (4) Each camera needs to be focused, so when the focus of a camera is completed, the focus device needs to be removed from the camera, and then installed on another camera to focus on the other camera, so that the focus operation will become complicated;

[0010] (5) The infrared imaging effect of the traditional transmission test standard is poor

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