Liquid crystal glass-based surface detection apparatus and liquid crystal glass-based surface detection method

Abstract

The present invention belongs to the technical field of optical imaging, and discloses a liquid crystal glass-based surface detection apparatus and a liquid crystal glass-based surface detection method. The liquid crystal glass-based surface detection apparatus comprises: an irradiation module for generating natural light along the surface of a liquid crystal glass to be detected at a preset angle; a polarizing module arranged on the surface of the irradiation module, wherein polarized light is obtained through the polarizing module according to the natural light generated by the irradiation module, and irradiates the surface of the liquid crystal glass to be detected along a preset angle; a detection module arranged at the reflected light path of the surface of the liquid crystal glass tobe detected, wherein the detection module detects the surface of the liquid crystal glass to be detected according to the received reflected light; and an extinction module arranged on the surface ofthe detection module and used for performing extinction on the reflected light so as to reduce the brightness of the reflected light reaching the detection module. According to the present invention,the reflected light on the surface of the liquid crystal glass is weakest, such that the influence of the internal structure of the liquid crystal glass on the imaging result can be eliminated, the defect on the surface of the liquid crystal glass can be highlighted, and the detection of the liquid crystal glass surface can be achieved.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and in particular relates to a surface detection device and a method thereof. Background technique [0002] Liquid crystal glass is a high-tech optoelectronic glass product made of liquid crystal film through high temperature and high pressure, interlayer packaging. Users can control the arrangement of liquid crystal molecules through the current energization or not, so as to control the transparent and opaque state of the glass. The ultimate goal is widely used in various fields, such as hospitals, shopping malls, vehicles, electronic devices and so on. [0003] The surface of liquid crystal glass needs to be inspected before leaving the factory; after production and leaving the factory, due to handling or moving, the surface of liquid crystal glass is easy to scratch, and the surface must also be inspected. The existing liquid crystal glass surface detection is realized by direct illum...

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Problems solved by technology

[0004] In view of the above problems, the present invention aims to provide a surface detection device and method based on liquid crystal glass, which effectively solves the interference problem caused by the detection of the surface of liquid crystal glass inside the liquid crystal glass in the prior art

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