Radius measurement of large aperture long-focal-length lens using computer-generated hologram

Jian-Peng Cui; Zhi-Gang Li; Zhen-Jun Bao; Heng Zhao; Ning Zhang; Jie Liu; Di-Long Wu; Hua Xu; Ping Ma

doi:10.1117/12.2616261

27 October 2021 Radius measurement of large aperture long-focal-length lens using computer-generated hologram

Jian-Peng Cui, Zhi-Gang Li, Zhen-Jun Bao, Heng Zhao, Ning Zhang, Jie Liu, Di-Long Wu, Hua Xu, Ping Ma

Proceedings Volume 11927, Optical Technology and Measurement for Industrial Applications Conference 2021; 119270E (2021) https://doi.org/10.1117/12.2616261
Event: SPIE Technologies and Applications of Structured Light, 2021, Online, Japan

Abstract

We present a method of using computer-generated hologram (CGH) to measure the radius of curvature of large aperture long-focal-length lens. In this method, a large aperture transmission CGH is used as a transmission sphere to generate the test and reference wavefronts by means of diffraction. To verify the feasiblity of this method, a 450 mm × 450 mm transmission CGH is designed and fabricated for measuring the radius of 440 mm × 440 mm spatial filter lens. Experimental results and error analysis show that the CGH test method features high accuracy and good repeatability.

Citation Download Citation

Jian-Peng Cui, Zhi-Gang Li, Zhen-Jun Bao, Heng Zhao, Ning Zhang, Jie Liu, Di-Long Wu, Hua Xu, and Ping Ma "Radius measurement of large aperture long-focal-length lens using computer-generated hologram", Proc. SPIE 11927, Optical Technology and Measurement for Industrial Applications Conference 2021, 119270E (27 October 2021); https://doi.org/10.1117/12.2616261

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