Affiliation:
1. Chubu University
2. RIKEN Institute of Physical and Chemical Research
Abstract
Demands of glass Fresnel lens is increasing in solar panel in order to increase power efficiency. Glass lens is usually molded by glass molding method with tungsten carbide molds. In this study, large Fresnel lens molds made of tungsten carbide are tested to be ground by simultaneous 2-axis (Y, Z) controlled grinding method. The resinoid bonded diamond wheel was trued with a rare metal truer to improve the sharpness of the wheel edge. In the grinding test of the tungsten carbide mold, a form accuracy of less than 0.8 μm P-V and surface roughness of 18 nm Rz were obtained, and it is clarified that the proposed grinding method is useful for the Fresnel grinding.
Publisher
Trans Tech Publications, Ltd.
Reference2 articles.
1. Suzuki. H, Kamano. T, et al., Study on micro aspherical optical component with glass molding - Improvement of form accuracy by deformation correction in Solidification shrinkage process - Proc. JSPE autumn meeting, (1999)266.
2. Yamamoto. Y, Suzuki. H, et al., Study on grinding of micro Fresnel lens mold (2nd report) - precision truing of grinding wheel that having sharp edge with truer is made of Mo, and high precision grinding of Fresnel shape- , Japan Society for Precision Engineering, 73, 6, (2006).
Cited by
6 articles.
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