A kind of manufacturing method of frosted disc for processing tellurium oxide crystal

Abstract

The invention discloses a frosted disk for processing tellurium oxide crystals and a manufacturing method thereof. Heavy flint glass is used as the material of the frosted disk, which is cut into a circular frosted sheet with a thickness of 12-15mm. Drill a center hole in the center of the frosted sheet, and then use the center of the center hole as a reference to drill at least two through holes on the surface of the frosted sheet; stick the frosted sheet with holes on a 20-25mm thick ceramic substrate with wax; use 800 mesh The silicon carbide abrasive roughens the surface of the frosted sheet. The present invention uses heavy flint glass as the grinding disc material to overcome the problems of high hardness and strong toughness of the cast iron grinding disc, and the surface of the processed tellurium oxide crystal device has no defects such as scratches and cracks.

Description

technical field [0001] The invention relates to the technical field of optical device processing, in particular to a grinding disc for processing tellurium oxide crystals and a manufacturing method thereof. Background technique [0002] As an acousto-optic material with high quality factor, tellurium oxide crystal has good birefringence and optical rotation properties. Under the same clear aperture, the resolution of acousto-optic devices made of tellurium oxide crystal can be improved by orders of magnitude. It has many advantages such as faster response speed, lower driving power, higher diffraction efficiency, and more stable performance. Therefore, tellurium oxide crystals have been widely used in recent years, but because of the small hardness of tellurium oxide crystals, the material is brittle and fragile. Therefore, it is difficult to process, especially the grinding process of tellurium oxide crystal. The surface of tellurium oxide crystal device processed by tradit...

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Problems solved by technology

[0002] As an acousto-optic material with high quality factor, tellurium oxide crystal has good birefringence and optical rotation performance. Under the same clear aperture, the resolution of acousto-optic device made of tellurium oxide crystal can be increased by orders of magnitude. It has many advantages such as faster response speed, lower driving power, higher diffraction efficiency, and more stable performance. Therefore, tellurium oxide crystals have been widely used in recent years. However, due to the relatively small hardness of tellurium oxide crystals, the material is brittle and fragile. Therefore, the processing difficulty is high, especially the grinding process of tellurium oxide crystals. The surface of tellurium oxide crystal devices processed by traditional cast iron grinding discs will have scratches and cracks, and the product qualification rate is low.

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