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12 December 2018 Design of computer generated hologram for testing the wedged focus lens with large aperture
Jian-Peng Cui, Ning Zhang, Jie Liu, Hua Xu, Ding-Yao Yan, Ping Ma
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Proceedings Volume 10847, Optical Precision Manufacturing, Testing, and Applications; 108470S (2018) https://doi.org/10.1117/12.2505496
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China
Abstract
A method for measuring the wavefront of wedged focus lens by using the Fizeau interferometer with large aperture and a reflective computer generated hologram (CGH) is proposed. The CGH has 6 zones: one main zone for the null testing of wedged focus lens, one additional zone for alignment the CGH substrate with the interferometer, and four others for the pre-alignment of wedged focus lens by projecting four marks. CGH design process was performed, including the ray trace model for multizone CGH and the optical testing configuration. Simulation results show that the desired precision can be reached with use of CGH and confirm the feasibility of this measurement method.
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Jian-Peng Cui, Ning Zhang, Jie Liu, Hua Xu, Ding-Yao Yan, and Ping Ma "Design of computer generated hologram for testing the wedged focus lens with large aperture", Proc. SPIE 10847, Optical Precision Manufacturing, Testing, and Applications, 108470S (12 December 2018); https://doi.org/10.1117/12.2505496
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KEYWORDS
Computer generated holography
Wavefronts
Optical alignment
Diffraction
Optical design
Optical testing
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