Method for detecting appearance of module lens

Abstract

The invention relates to a method for detecting the appearance of a module lens. The method comprises: 1, placing a plurality of module lenses on a tray at equal distances, 2, capturing a plurality ofmodule lens images by a camera and extracting and separating a single module lens image from the captured images through an image search module, 3, carrying out binarization processing on the singlemodule lens image through an image analysis module to obtain a black-and-white binary image, dividing the binary image into target pixel and background pixel sets, extracting target pixel features through the image analysis module to obtain the sizes, positions and number of target areas, 4, determining whether the single module lens has a quality defect through a determining module, and 5, displaying the qualified condition of the single module lens through a computer display screen, and accurately determining whether the module lens has lens barrel foreign objects, lens barrel scratches, lens foreign objects and lens scratches. The method produces accurate detection results, timely finds quality defects, prevents subsequent processing, reduces a cost, reduces human interference and meetsproduction demands.

Description

technical field [0001] The invention relates to the field of module lens detection, in particular to a method for detecting the appearance of a module lens. Background technique [0002] Among the many components of the module lens, the lens is the key component. The lens is composed of a lens, a lens barrel, a substrate, a filter, and a sensor. During the assembly process, it is generally necessary to check the lens barrel for foreign objects, lens barrel scratches, lens foreign objects, etc. , Lens scratches and other appearance inspections, the traditional inspection method is to check by visual observation, the defect of this method is that it is greatly affected by human factors, the accuracy cannot be guaranteed, the error is large, and the results of different people looking at it from different directions Not the same, inefficient and lacking in practicality. Contents of the invention [0003] Aiming at the problems of low precision, large influence of human facto...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of low precision, large influence of human factors, and low efficiency in the existing technology of visually inspecting the lens, the present invention provides a method for inspecting the appearance of the module lens, and the specific technical solution is as follows:

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