| Athermal design for infrared refractive/diffractive/reflective hybrid optical system | |
| Cheng, Ximin1,2; Xie, Weimin1; Bai, Yu1,2,3; Jia, Xin1; Xing, Tingwen1 | |
| Volume | 9280 |
| Pages | 928018 |
| 2014 | |
| Language | 英语 |
| ISSN | 0277786X |
| DOI | 10.1117/12.2068585 |
| Indexed By | Ei |
| Subtype | 会议论文 |
| Abstract | 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.; 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 Name | Proceedings of SPIE: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes |
| Conference Date | 2014 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/7489 |
| Collection | 应用光学研究室（二室） |
| Corresponding Author | Cheng, Ximin |
| Affiliation | 1. 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2014-2112.pdf（474KB） | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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