Freeform reflector light source used for space traceable spectral radiance calibration on the solar reflected band

doi:10.1364/OE.481105

CIOMP OpenIR

	Freeform reflector light source used for space traceable spectral radiance calibration on the solar reflected band
	Y. Jiang; J. Tian; W. Fang; D. Hu and X. Ye
	2023
发表期刊	Optics Express
ISSN	10944087
卷号	31 期号:5 页码:8049-8067
摘要	For purpose of improving the accuracy of in-orbit radiometric calibration of Chinese Space-based Radiometric Benchmark (CSRB) reference payload on the reflected solar band and reduce resource consumption, this paper proposed a freeform reflector radiometric calibration light source system based on the beam shaping characteristics of the freeform surface. The design method of initial structure discretization based on Chebyshev points was used to design and solve the freeform surface, and the feasibility of the design method was verified by optical simulation. The designed freeform surface is machined and tested, and the test results show that the surface roughness root mean square (RMS) of the freeform reflector is 0.61 μm, which indicates that the continuity of the machined surface is good. The optical characteristics of the calibration light source system are measured, the results show that the irradiance uniformity and radiance uniformity are better than 98% in the effective illumination area of 100mm× 100 mm on the target plane. The constructed freeform reflector calibration light source system can meet the requirements of large area, high uniformity and light weight for onboard calibration of the payload of the radiometric benchmark, improving the measurement accuracy of spectral radiance on the reflected solar band. © 2023 Optica Publishing Group.
DOI	10.1364/OE.481105
URL	查看原文
收录类别	sci ; ei
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67569
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Jiang,J. Tian,W. Fang,et al. Freeform reflector light source used for space traceable spectral radiance calibration on the solar reflected band[J]. Optics Express,2023,31(5):8049-8067.
APA	Y. Jiang,J. Tian,W. Fang,&D. Hu and X. Ye.(2023).Freeform reflector light source used for space traceable spectral radiance calibration on the solar reflected band.Optics Express,31(5),8049-8067.
MLA	Y. Jiang,et al."Freeform reflector light source used for space traceable spectral radiance calibration on the solar reflected band".Optics Express 31.5(2023):8049-8067.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Freeform reflector l（10962KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载