Method for detecting appearance of module lens

A technology of appearance inspection and lens, which is applied in the direction of measuring devices, optical testing for flaws/defects, and material analysis through optical means. It can solve problems such as low efficiency, low precision, and large influence of human factors, so as to meet production needs and be accurate. The effect of high precision and cost reduction

Inactive Publication Date: 2018-11-16
东莞高伟光学电子有限公司
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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

Method used

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  • Method for detecting appearance of module lens

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Embodiment Construction

[0014] Attached below figure 1 , the specific embodiment of the present invention is described further:

[0015] A method for detecting the appearance of a module lens, comprising the following steps:

[0016] ① Place multiple module lenses equidistantly on the tray;

[0017] ② The camera shoots multiple module lens images, and the captured images are transmitted to the image search module of the computer. The image search module extracts and separates a single module lens image from the captured images. The image search module extracts and separates a single module through the ROI system Lens image, ROI system is the region of interest. The image to be processed outlines the area to be processed in the form of a box, circle, ellipse, irregular polygon, etc., which is called the region of interest. It can be viewed from the entire lens of multiple modules. A single module lens image is separated from the image, and the single module lens image is transmitted to the image ana...

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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...

Claims

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Application Information

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IPC IPC(8): G01N21/95
CPCG01N21/95G01N2021/9511
Inventor 郑载勋
Owner 东莞高伟光学电子有限公司
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