Chinese Optics Letters, 2019, 17 (11): 112201, Published Online: Sep. 4, 2019   

Stitching swing arm profilometer test for large aperture aspherics Download: 616次

Author Affiliations
Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Abstract
We implemented a stitching swing arm profilometer (SSAP) test for the inner and outer regions of a large aspheric surface with a short arm. The SSAP was more capable of improving sampling density of surface and was less sensitive to system error, like vibration noise and air-table noise. Firstly, a calculation model was built to evaluate the sampling density of the SSAP test. Then, sensitivity to system noise was tested when different lengths of arm were used. At the end, an experiment on a 3 m diameter aspheric mirror was implemented, where test efficiency was promoted, and high sampling density was achieved.

Ling Xiong, Erhui Qi, Xiao Luo, Feng Zhang, Donglin Xue, Xuejun Zhang. Stitching swing arm profilometer test for large aperture aspherics[J]. Chinese Optics Letters, 2019, 17(11): 112201.

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