Multiple Tempered Glass Surface Stress Tester

Abstract

The invention discloses a multi-tempered glass surface stress meter, which is provided with an outer frame, and a light emitting unit, a light refraction element, and an imaging unit are sequentially arranged in the outer frame along an optical path, and the light emitting unit includes at least two light sources and at least two light sources Height adjustment device, the light sources are respectively fixed on the light source height adjustment device; the light refraction element includes at least two refraction prisms, and the refraction prisms are respectively located in the light emitting direction of the light source, for placing the glass to be measured; the imaging unit includes at least two imaging mirrors barrel, at least two imaging lens barrel angle adjustment mechanisms and at least two image sensors, the front ends of the imaging lens barrels are respectively located in the light refraction direction of the refracting prism, and the rear ends of the imaging lens barrels are respectively equipped with image sensors. The strain gauge of the present invention can accurately read the interference fringes strengthened once and multiple times at the same time by adopting a multi-optical path system, so that the measurement accuracy and efficiency can be greatly improved, and it has broad market application prospects.

Description

technical field [0001] The invention relates to a glass stress detection device, in particular to a multi-time tempered glass surface stress meter. Background technique [0002] We know that tempered glass, also known as strengthened glass, is a kind of prestressed glass, which usually uses chemical or physical methods to form compressive stress on the surface of the glass. Glass is widely used in building doors and windows, glass curtain walls, electronic instruments and other fields. However, there will be a large number of micro-cracks on the edge of tempered glass after cutting, which will reduce the strength of the glass. Especially with the vigorous development of the touch industry, the specification requirements of the touch products themselves are becoming increasingly strict. Since the touch panel uses external pressure to sense the operation of the components to achieve the use effect, the mechanical pressure resistance of the product is The important specificat...

AI Technical Summary

Problems solved by technology

When the strain gauge is used to detect the surface stress of secondary tempered glass, although all the stripes can be identified through the wide-angle lens set at the front of the eyepiece, the position of the secondary stripes is still difficult to read because the secondary strengthening stripes will be obviously thicker after zooming in. Take, only one estimate can be taken, which affects the measurement accuracy

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