Stray light characteristics of the diffractive telescope system
文献类型：期刊论文
| 作者 | Liu, Dun1,2; Wang, Lihua1; Yang, Wei1; Wu, Shibin1; Fan, Bin1; Wu, Fan1 |
| 刊名 | Optical Engineering
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 57期号:2页码:025105 |
| 关键词 | Charge coupled devices Density (optical) Diffraction Diffractive optical elements Glare Image enhancement Light sources Optical systems Space telescopes Stars |
| ISSN号 | 0091-3286 |
| DOI | 10.1117/1.OE.57.2.025105 |
| 文献子类 | J |
| 英文摘要 | Diffractive telescope technology is an innovation solution in construction of large light-weight space telescope. However, the nondesign orders of diffractive optical elements (DOEs) may affect the imaging performance as stray light. To study the stray light characteristics of a diffractive telescope, a prototype was developed and its stray light analysis model was established. The stray light characteristics including ghost, point source transmittance, and veiling glare index (VGI) were analyzed. During the star imaging test of the prototype, the ghost images appeared around the star image as the exposure time of the charge-coupled device improving, consistent with the simulation results. The test result of VGI was 67.11%, slightly higher than the calculated value 57.88%. The study shows that the same order diffraction of the diffractive primary lens and correcting DOE is the main factor that causes ghost images. The stray light sources outside the field of view can illuminate the image plane through nondesign orders diffraction of the primary lens and contributes to more than 90% of the stray light flux on the image plane. In summary, it is expected that these works will provide some guidance for optimizing the imaging performance of diffractive telescopes. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. |
| 语种 | 英语 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/9321]  |
| 专题 | 光电技术研究所_质量处（质检中心） |
| 作者单位 | 1.Chinese Academy of Sciences, Institute of Optics and Electronics, Chengdu, China; 2.University of Chinese Academy of Sciences, Beijing, China |
| 推荐引用方式 GB/T 7714 | Liu, Dun,Wang, Lihua,Yang, Wei,et al. Stray light characteristics of the diffractive telescope system[J]. Optical Engineering,2018,57(2):025105. |
| APA | Liu, Dun,Wang, Lihua,Yang, Wei,Wu, Shibin,Fan, Bin,&Wu, Fan.(2018).Stray light characteristics of the diffractive telescope system.Optical Engineering,57(2),025105. |
| MLA | Liu, Dun,et al."Stray light characteristics of the diffractive telescope system".Optical Engineering 57.2(2018):025105. |
入库方式： OAI收割
来源：光电技术研究所
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