Lens defect detection device

Abstract

The invention relates to a lens defect detection device, comprising a camera, a lens, a display screen, a ring light source, a transparent flat plate, an electric displacement platform, an electric lifting platform and an electric slide rail, wherein the camera is connected with the lens and is fixed to the electric displacement platform and can move up and down with the electric displacement platform to adjust the size of a view field of the camera, and the camera is fixed directly below the lens for assisting multi-angle lighting to shoot a tested lens; the transparent flat plate is fixedlyconnected to the electric slide rail and is used for placing the tested lens, and the electric slide rail carries the transparent flat plate to move so as to come in and get out from the detection device; and the display screen is fixed on the electric lifting platform for projecting black and white stripes, is placed below the transparent flat plate, and is driven by the electric lifting platformto move up and down to project onto the tested lens.

Description

technical field [0001] The invention relates to a lens defect detection device. Background technique [0002] Lenses are a common type of optical device. However, in the process of lens production, due to the limitations of equipment and technology, various defects will inevitably occur, which will affect its final optical performance. Therefore, before the lens is officially put into use, an inspection process needs to be introduced to prevent the defective lens from affecting the final performance of the device and causing irreparable losses. At present, lens defect detection is often realized through manual inspection. However, manual inspection has the following obvious disadvantages: (1) From the perspective of production process and cost, manual inspection will introduce unnecessary additional links to production assembly, which is not conducive to the realization of fully automatic production assembly, and will also increase labor costs. (2) From the perspective of ...

AI Technical Summary

Problems solved by technology

However, manual inspection has the following obvious disadvantages: (1) From the perspective of production process and cost, manual inspection will introduce unnecessary additional links to production assembly, which is not conducive to the realization of fully automatic production assembly, and will also increase labor costs

(2) From the perspective of production efficiency, the speed of manual detection is slow, and online detection cannot be realized

(3) From the perspective of detection results, the reliability of manual detection cannot be guaranteed, and it is easy to introduce human error

However, there are still problems in the application of visual inspection in lens defect detection. For example, the scale of lens defects is often small, which is difficult to obtain through direct photography;

Images