CAJ | 학술논문

　　提出了一种双通道共用一个主光学的推帚式高光谱成像仪光学系统，该系统由离轴三反射主光学系统、狭缝、准直镜及分色镜、可见近红外光谱仪后光学和短波红外光谱仪后光学组成，设计中采用双通道共用离轴三反射主光学系统，不仅满足了成像仪大视场、宽谱段的要求，而且提高了系统的光学效率，使系统结构更加紧凑，双通道光谱仪均采用棱镜-全息透射光栅-棱镜分光组件分光，实现了宽光谱分光，提高了衍射效率，系统实现光谱范围覆盖450～2500 nm，全视场达23.9°。
　　제출료일충쌍통도공용일개주광학적추추식고광보성상의광학계통，해계통유리축삼반사주광학계통、협봉、준직경급분색경、가견근홍외광보의후광학화단파홍외광보의후광학조성，설계중채용쌍통도공용리축삼반사주광학계통，불부만족료성상의대시장、관보단적요구，이차제고료계통적광학효솔，사계통결구경가긴주，쌍통도광보의균채용릉경-전식투사광책-릉경분광조건분광，실현료관광보분광，제고료연사효솔，계통실현광보범위복개450～2500 nm，전시장체23.9°。
This paper presents an optical system for a dual-channel pushbroom hyperspectral imaging spectrometer which shared a main optics. This optical system consists of the main optics, slit, collimator, dichroic mirror and the optical components of VISNIR and SWIR. The two channels sharing off-axis Three-Mirror Anastigmatic (TMA) telescope system is designed, which is not only to meet the requirements of the imager about field of view, wide spectra, but also to improve the optical efficiency and make the system more compact. Prism Grating-Prism (PGP) components are used to achieve a wide spectrum spectrophotometry and high diffraction efficiency, whose response covers the range from 450 to 2500 nm with a 23.9° field of view.