New machining and testing method of large angle infrared wedge mirror parts

Ying Su; Rui Guo; Fumei Zhang; Zheng Zhang; Xuanmin Liu; Xu Zengqi; Wenting Li; Feng Zhang

doi:10.1117/12.2243645

28 October 2016 New machining and testing method of large angle infrared wedge mirror parts

Ying Su, Rui Guo, Fumei Zhang, Zheng Zhang, Xuanmin Liu, Xu Zengqi, Wenting Li, Feng Zhang

Proceedings Volume 9683, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 96831M (2016) https://doi.org/10.1117/12.2243645
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

Large angle wedge parts were widely used in the optical system that was used for achieving a wide range of scanning. Due to the parts having the characteristic of large difference in the thickness of both ends and high density, the accuracy of the wedge angle was hard to ensure to reach second level in optical processing. Generally, wedge mirror angle was measured by contact comparison method which was easy to damage the surface. In view of the existence of two practical problems, in this paper, based on theoretical analysis, by taking three key measures that were the accurate positioning for the central position of the large angle wedge part, the accuracy control of angle precision machined of wedge mirror and fast and non destructive laser assisted absolute measurement of large angle wedge, the qualified rate of parts were increased to 100%, a feasible, controllable and efficient process route for large angle infrared wedge parts was found out.

Citation Download Citation

Ying Su, Rui Guo, Fumei Zhang, Zheng Zhang, Xuanmin Liu, Xu Zengqi, Wenting Li, and Feng Zhang "New machining and testing method of large angle infrared wedge mirror parts", Proc. SPIE 9683, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 96831M (28 October 2016); https://doi.org/10.1117/12.2243645

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