Device and method for detecting cracking edge of front side surface of lens based on boat-shaped light source

Abstract

The invention relates to a device and a method for detecting the cracking edge of the front side surface of a lens based on a boat-shaped light source, and belongs to the technical field of image processing. The device for detecting the cracking edge of the front side surface of the lens based on the boat-shaped light source is characterized by comprising a dark box, the boat-shaped light source,a fixed frame, a lining plate and an air cylinder, wherein the five surfaces of the box body of the dark box are sealed by plates; an openable glass door is arranged at the front surface of the dark box; a hole is formed in the lining plate, and the lining plate is fixedly arranged at the middle lower part of the box body; the boat-shaped light source consists of a boat-shaped space and light sources, the boat-shaped space is formed by a circular arc-shaped panel and two semicircular panels through two fixed plates, the light sources are arranged at both sides of an opening of the boat-shapedspace, and two cameras are arranged at the top 30-degree area and bottom 30-degree area of the circular arc-shaped panel by using the transverse middle line as the boundary; an air cylinder is arranged under the boat-shaped light source, is arranged on the fixed frame and is used for driving the boat-shaped light source to move front and back in the hole range of the lining plate; the cameras areused for photographing the front side edge of the lens which is radiated by the boat-shaped light source. The device has the advantages that the light source reflection condition at the surface of thelens is effectively improved, and the detection precision is improved.

Description

technical field [0001] The invention relates to a device and method for detecting edge bursts on the front side of a lens based on a boat-shaped light source, and belongs to the technical field of image processing. Background technique [0002] With the improvement of the development level of modern manufacturing automation production industry, consumers have more and more stringent requirements on product appearance, size, performance, etc. Efficiency, high-precision automated production requirements, with the increase in labor costs, and the continuous application of machine vision technology in the field of edge detection, more and more manufacturing companies began to use machine vision edge detection technology to replace manual detection to reduce production cost, and at the same time realize the production process of automatic detection, marking, and rejection in the production process of the lens. However, in the existing detection technology, for mirrors of differen...

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Problems solved by technology

[0002] With the improvement of the development level of modern manufacturing automation production industry, consumers have more and more stringent requirements on product appearance, size, performance, etc. Efficiency, high-precision automated production requirements, with the increase in labor costs, and the continuous application of machine vision technology in the field of edge detection, more and more manufacturing companies began to use machine vision edge detection technology to replace manual detection to reduce production cost, and at the same time realize the production process of automatic detection, marking, and rejection in the production process of the lens. However, in the existing detection technology, for mirrors of different sizes, especially some lenses with small sizes, they are limited by the light when they rotate. , mechanical claws and other external factors, the lens boundary or part of the lens boundary cannot be fully scanned by the light, there are problems such as missed detection, incomplete reflection surface of the light source, large reflection error, etc.

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