光学精密工程2017，Vol.25Issue(4)：867-874,8.DOI:10.3788/OPE.20172504.0867
大孔径面视场PG成像光谱仪的光学设计
Optical design of PG imaging spectrometer with large aperture and surface field
摘要
Abstract
As linear field imaging by slit led to small aperture and low optical transmittance in imaging spectrometers, a large aperture imaging spectrometer based on prism-grating (PG) component was proposed.The PG imaging spectrometer employed a surface-relief type grating which can reduce the cost and fabrication difficulty of gratings.Although the large aperture imaging spectrometer had higher optical efficiency and time efficiency, the color aberrations and spectral line curvature were difficult to correct.Thereby, the telescope system was unified with the optical splitting system, which enabled the telocentric optical path mach and the aperture match with the perfect correction of spectral line curvature and color aberrations.In addition, an aspheric mirror and correction mirror were mounted to compensate the asymmetry aberration.The results demonstrate that the spectral range of the PG imaging spectrometer is 400-1000 nm, the Modulation Transfer Function(MTF) is greater than 0.65 and the spectral resolution is 2.5 nm.The spectral line curvature is less than 5 μm, and color aberrations were less than 8 μm in full spectrum.关键词
成像光谱仪/大孔径/面视场/谱线弯曲/色畸变Key words
imaging spectrometer/large aperture/surface field/spectral line curvature/color aberration分类
机械制造引用本文复制引用
杨晋,张锐,潘明忠,崔继承..大孔径面视场PG成像光谱仪的光学设计[J].光学精密工程,2017,25(4):867-874,8.基金项目
国家重大科学仪器设备开发专项(No.2014YQ120351) （No.2014YQ120351）
国家重大科研装备研制项目(No.ZDYZ2008-1) （No.ZDYZ2008-1）
国家自然科学基金资助项目(No.61505204) （No.61505204）
吉林省科技发展计划项目(No.20140203011GX) （No.20140203011GX）
