A liquid crystal glass-based surface detection device and method thereof

Abstract

The invention belongs to the technical field of optical imaging, and discloses a liquid crystal glass-based surface detection device and a method thereof, wherein the device includes: an irradiation module that generates natural light along the surface of the liquid crystal glass to be detected at a preset angle; The module is arranged on the surface of the irradiation module, and the polarizing module obtains polarized light based on the natural light generated by the irradiation module, and the polarized light irradiates the surface of the liquid crystal glass to be detected along a preset angle; the detection module is arranged on the reflection light path of the surface of the liquid crystal glass to be detected, The detection module detects the surface of the liquid crystal glass to be detected based on the received reflected light; the extinction module is arranged on the surface of the detection module, and the extinction module is used for extinction of the reflected light to reduce the brightness of the reflected light reaching the detection module. It makes the refracted light on the surface of the liquid crystal glass the weakest, thereby eliminating the influence of the internal structure of the liquid crystal glass on the imaging result, highlighting the defects on the surface of the liquid crystal glass, and realizing the detection of the surface of the liquid crystal glass.

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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