10 m大口径薄膜衍射主镜的色差校正技术研究

任智斌; 胡佳盛; 唐洪浪; 金鑫

doi:doi:10.3788/gzxb20174604.0422004

光子学报, 2017, 46 (4): 0422004, 网络出版: 2017-05-03

10 m大口径薄膜衍射主镜的色差校正技术研究

Study on Chromatic Aberration Correction of 10 Meter Large Aperture Membrane Diffractive Primary Lens

论文大纲

任智斌 ^*胡佳盛唐洪浪金鑫

作者单位

哈尔滨工业大学航天学院, 哈尔滨 150001

衍射光学遥感薄膜像质分析光学设计 Diffractive optics Remote sensing Membrane Image analysis Optical design

摘要

分析了薄膜衍射主镜的成像性能及色散特性, 利用含有衍射面的反射式消色差光路校正了衍射主镜的强色散, 使成像系统的工作波段达到40 nm、视场达到0.02°, 设计了10 m口径、115.73 m总长的短结构合成孔径薄膜衍射成像系统.结果表明, 消色差光路将两边缘波长0.58 μm与0.62 μm之间的焦距差由5.34 m减小到17.27 μm.该研究提供了一种薄膜衍射主镜成像系统的设计方案, 可为超大口径薄膜衍射成像系统的工程化研究提供参考.

Abstract

The imaging and dispersion characteristics of membrane diffraction primary lens were studied, and the strong dispersion of diffraction primary lens was corrected by using the reflective achromatic optical light path with diffractive optical surface. Thus, the membrane diffractive optical system with an aperture of 10 m and a total length of 115.73 m was designed with the waveband of 40 nm, the field of view of 0.02°. The results show that, the focal length difference between the two edge wavelength of 0.58 μm and 0.62 μm decreases from 5.34 m to 17.27 μm by uing the achromatic optical path. This study presents a design method for the imaging system with membrane diffraction primary lens, which can provide references for the engineering research of the large aperture membrane diffraction imaging system.

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任智斌, 胡佳盛, 唐洪浪, 金鑫. 10 m大口径薄膜衍射主镜的色差校正技术研究[J]. 光子学报, 2017, 46(4): 0422004. REN Zhi-bin, HU Jia-sheng, TANG Hong-lang, JIN Xin. Study on Chromatic Aberration Correction of 10 Meter Large Aperture Membrane Diffractive Primary Lens[J]. ACTA PHOTONICA SINICA, 2017, 46(4): 0422004.

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