Research on a high-precision measuring technique for the curvature radius of a concave spherical surface

Jiaming Lin; Datu Su; Fen Yin; Dingguo Sha

doi:10.1117/12.218457

8 September 1995 Research on a high-precision measuring technique for the curvature radius of a concave spherical surface

Jiaming Lin, Datu Su, Fen Yin, Dingguo Sha

Author Affiliations +

Proceedings Volume 2536, Optical Manufacturing and Testing; (1995) https://doi.org/10.1117/12.218457
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

A novel focus-setting technique is elaborated in terms of its theoretical analysis and experimental results. Upon the new technology a high precision instrument for measuring curvature radius of polished concave spherical surface has been developed and its practical applications are discussed. According to the appraisal made by author-itative experts, the relative measuring error of curvature radius has been reduced to the magnitude of (Delta) R/R<EQ 1/100000. The present instrument is one of key measuring devices in developing high imaging quality and large size optical instruments in advanced science and technology.

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Jiaming Lin, Datu Su, Fen Yin, and Dingguo Sha "Research on a high-precision measuring technique for the curvature radius of a concave spherical surface", Proc. SPIE 2536, Optical Manufacturing and Testing, (8 September 1995); https://doi.org/10.1117/12.218457

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