21 May 2009 Design on visible diffractive-refractive hybrid collimator
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Proceedings Volume 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 72822H (2009) https://doi.org/10.1117/12.830987
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China
Abstract
Collimator is an important equipment with high accuracy in optical experiment and measuement. In order to improve measuring accuracy, based on the particular aberration property of diffraction optical element, hybrid refractivediffractive aberration correction method is put forward. In this paper, a hybrid refractive-diffractive method is compared with conventional method with 80mm diameter, 500mm focal length and 550mm overall length. The resolution is less than 4.3". Having been optimized, the maximum spot is 5.2μm, and the modulation transfer function (MTF) at 50lp/mm is over 0.8, better than conventional method.
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Xu-hua Zhai, Xu-hua Zhai, Hong-tao Zhang, Hong-tao Zhang, Hai-shan Zhao, Hai-shan Zhao, Hai-feng Xu, Hai-feng Xu, Zhou Qu, Zhou Qu, } "Design on visible diffractive-refractive hybrid collimator", Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 72822H (21 May 2009); doi: 10.1117/12.830987; https://doi.org/10.1117/12.830987
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