Transparent or semitransparent material curved surface contour detecting system

Abstract

The invention discloses a transparent or semitransparent curved surface contour detecting system which comprises the components of: an illuminating device which is used for emitting a wideband illuminating beam; a dispersive objective lens which is in the light emitting direction of the illuminating beam and is used for realizing dispersion decomposition of the transmitted illuminating beam to a set of monochromatic beams of which the converging points correspond with the wavelength; a checking material supporting member which is used for fixing a transparent or semitransparent checking material; a spectrographic analysis device which is used for receiving upper-surface reflecting light and lower-surface reflecting light and detecting a spectral chromatic aberration between the upper-surface reflecting light and the lower-surface reflecting light; and a processor which is used for receiving the spectral chromatic aberration, obtains the thickness of a scanning position according to thespectral chromatic aberration and determining the contour of the transparent or semitransparent curved surface checking material according to the thickness of two or more than two scanning positions.The system is not affected by the light transmittance of the checking material and can accurately detect the contour.

Description

technical field [0001] The invention relates to the technical field of industrial detection, in particular to a detection system for curved surface contours of transparent or translucent materials. Background technique [0002] Along with this, in order to have a narrower frame, a larger screen-to-body ratio and a better visual experience, more smart terminal manufacturers have begun to adopt 3D curved glass screens in product design. The production process of 3D curved glass is similar to 2D and 2.5D production methods, and both need to go through the glass substrate cutting, fine carving, polishing, coating and other process links, but additionally, the production process of 3D curved glass screen needs to be added later The hot bending process is to bend the edge of a flat 2D glass plate into a 3D curved glass screen. [0003] However, if the angle of the chamfer is not processed accurately during the chamfering process of the 3D curved glass screen, the chamfer will not...

AI Technical Summary

Problems solved by technology

[0005] Based on this, in order to solve the problem of low detection accuracy of the laser triangulation method in the traditional technology for the curvature of the transparent / translucent curved glass and the flatness of the chamfer, a transparent or translucent material curved surface profile is proposed. Detection Systems

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