发明名称 MEASUREMENT METHOD AND MEASUREMENT APPARATUS
摘要 The present invention provides a measurement apparatus that illuminates a surface to be tested having an aspheric surface using light beams that form spherical waves to measure a figure of the surface to be tested, including a detection unit configured to detect interference patterns between light beams from the surface to be tested and light beams from a reference surface, and a controller configured to control processing for obtaining a figure of the surface to be tested based on the interference patterns detected by the detection unit.
申请公布号 US2010177322(A1) 申请公布日期 2010.07.15
申请号 US20100685409 申请日期 2010.01.11
申请人 CANON KABUSHIKI KAISHA 发明人 NAKAUCHI AKIHIRO
分类号 G01B11/24;G01B11/02 主分类号 G01B11/24
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