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Athermal design for infrared refractive/diffractive/reflective hybrid optical system
Cheng, Ximin1,2; Xie, Weimin1; Bai, Yu1,2,3; Jia, Xin1; Xing, Tingwen1
Volume9280
Pages928018
2014
Language英语
ISSN0277786X
DOI10.1117/12.2068585
Indexed ByEi
Subtype会议论文
AbstractThermal properties and dispersive capacity of diffractive optical elements were expounded in this paper, and the conclusion that optothermal expansion coefficient of diffractive optical element is independent of refractive index of the material was derived. The design method to athermalize the hybrid infrared optical system was studied, a new hybrid system with diffractive surface was structured on the foundation of refractive/reflective optical system using optical design software ZEMAX, and the surface was simulated by MATLAB. The image quality was improved obviously compared with the one without diffractive surface. The system worked at 3.7∼4.8um band with its' effective focal length of 70mm, field of view of 2° and possessed better athermal performance in the temperature range -40°∼+60°. The image quality achieved diffractive limit, besides, a compact structure, small volume and light weight were other advantages of the hybrid system. © 2014 SPIE.; Thermal properties and dispersive capacity of diffractive optical elements were expounded in this paper, and the conclusion that optothermal expansion coefficient of diffractive optical element is independent of refractive index of the material was derived. The design method to athermalize the hybrid infrared optical system was studied, a new hybrid system with diffractive surface was structured on the foundation of refractive/reflective optical system using optical design software ZEMAX, and the surface was simulated by MATLAB. The image quality was improved obviously compared with the one without diffractive surface. The system worked at 3.7∼4.8um band with its' effective focal length of 70mm, field of view of 2° and possessed better athermal performance in the temperature range -40°∼+60°. The image quality achieved diffractive limit, besides, a compact structure, small volume and light weight were other advantages of the hybrid system. © 2014 SPIE.
Conference NameProceedings of SPIE: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Conference Date2014
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Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7489
Collection应用光学研究室(二室)
Corresponding AuthorCheng, Ximin
Affiliation1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
2. University of Chinese Academy of Sciences, Beijing, China
3. University of Electronic Science and Technology of China, Chengdu, China
Recommended Citation
GB/T 7714
Cheng, Ximin,Xie, Weimin,Bai, Yu,et al. Athermal design for infrared refractive/diffractive/reflective hybrid optical system[C],2014:928018.
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