New fabrication technology in single point diamond turning for IR aspheric optical parts

Ying Su; Xianhe Chen; Xiaogang Guo; Guo Rui; Xuanmin Liu; Feng Zhang; Chao Yang; Yingyu Xiao; Zengqi Xu

doi:10.1117/12.2069649

6 August 2014 New fabrication technology in single point diamond turning for IR aspheric optical parts

Ying Su, Xianhe Chen, Xiaogang Guo, Guo Rui, Xuanmin Liu, Feng Zhang, Chao Yang, Yingyu Xiao, Zengqi Xu

Proceedings Volume 9281, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 92811L (2014) https://doi.org/10.1117/12.2069649
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

With the development of IR imaging technology, IR aspheric optical parts become more and more widely used in IR optical systems, the precision requirements are also becoming more and more rigorous. The precision of parts directly influences the image quality and optical efficiency of IR optical systems. However, the surface shape precision and surface inclination with high quality and high efficiency machining have been a challenge for the precision optics process. This paper focuses on the surface shape precision, surface roughness and surface inclination which affect the precision of IR aspheric parts, new fabrication technology for optimization parameters in turning process of different IR materials, surface inclination machining and accurate measurement of aspheric surface is proposed. By adopting the proposed technology, high precision aspheric parts with surface shape precision PV≤0.3μm (Φ ≤80mm), surface roughness Ra≤5nm and surface inclination≤30″ (Φ ≤30mm) can be manufactured.

Citation Download Citation

Ying Su, Xianhe Chen, Xiaogang Guo, Guo Rui, Xuanmin Liu, Feng Zhang, Chao Yang, Yingyu Xiao, and Zengqi Xu "New fabrication technology in single point diamond turning for IR aspheric optical parts", Proc. SPIE 9281, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 92811L (6 August 2014); https://doi.org/10.1117/12.2069649

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KEYWORDS

Aspheric lenses

Surface roughness

Infrared imaging

Surface finishing

Single point diamond turning

Diamond machining

Infrared materials

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