A fast and intelligent detection device and method for optical lens defective products

Abstract

The invention discloses a quick and intelligent defective optical lens detection device and method. The detection device comprises a camera, an image analysis unit and a liquid crystal display panel which are sequentially connected. The method includes the following detection steps that optical lenses to be detected are placed on the liquid crystal display panel and background light of the liquid crystal display panel enters a camera head of the camera through the optical lenses; acquired images are output to the image analysis unit through the camera and segmented through the image analysis unit, and therefore sub-images corresponding to all the lenses are acquired; the image analysis unit compares the sub-images with a standard image corresponding to a standard lens for identification, and identification results indicating whether the lenses are defective or not are acquired and reflected through colors in the regions, corresponding to the lenses, on the liquid crystal display panel. By the adoption of the device and method, batch detection can be achieved, detection efficiency is high, and the results are objective and accurate.

Description

technical field [0001] The invention relates to optical lens detection, in particular to a fast and intelligent detection device and method for defective optical lenses that can realize batch processing, and belongs to the technical field of optical lens detection. Background technique [0002] In the production process of optical lenses, the quality inspection of optical lenses must be carried out when the products leave the factory. For example, the quality inspection of camera lenses, scopes and other products when they leave the factory is an important process. The unqualified products in the production of optical lens products come from two aspects: (1) cracks and cracks caused by the manufacturing process; (2) hair, dust and dirt may remain on the surface or inside. In the production of optical lenses, there are corresponding control requirements for these defects. The existing defect detection method generally uses artificial naked eyes to identify the optical lens u...

AI Technical Summary

Problems solved by technology

The disadvantages of the solution are: 1. The structure of the instrument is complex, including a mechanical device for horizontally moving the lens, which is more expensive; 2. The operation is complicated, and the operator needs to use the mechanical device to move the lens; 3. Due to the need for one or more times Move the optical lens to take pictures, and perform the XOR operation of two or more images, so only one optical lens can be detected at a time, and batch processing is not possible, so the detection speed is slow

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