摘要
高质量的成像光谱仪光学系统必须具备大线视场、大相对口径、宽光谱成像、体积小、重量轻等优点,因此离轴全反射系统成为该领域的一个研究方向。介绍了一种基于赛德尔像差理论的大线视场、大相对口径离轴三反光学系统的设计方法。该方法通过对初级像差方程组进行约束优化,求得满足要求的初始结构参数,并在优化的过程中,不断地调整系统中各个镜子的偏心和倾斜,在保证成像质量地前提下,消除系统的遮拦。最后的设计结果表明了这种方法的有效性和可行性。
The high - qualified optical systems which are used in imaging spectrometers must have someadvantages, such as large linear FOV, large relative aperture, wide-spectral imaging, light weighted, etc,which makes the off-axis all reflective optical systems an important research direction in this field. Amethod for the design of off-axial reflective 3-mirror optical system with large linear field of view（FOV）and large relative aperture was described in this paper. The method was based on the 3rd -orderaberration theory. After the constrained optimization of a set of Seidel aberration coefficient functions, thedesigner could achieve the initial construction parameters of the optical system, i. e. the radii andseparations of lenses. And during the designing process, decenters and tilts of mirrors were adjustedcontinuously to eliminate the obscurations under the premise of assurance of image quality. In the end,the design results were given, and the MTF curves prove the feasibility of this method.
出处
《红外与激光工程》
EI
CSCD
北大核心
2013年第7期1863-1865,共3页
Infrared and Laser Engineering
关键词
成像光谱仪
赛德尔像差理论
离轴三反光学系统
结构参数
无遮拦
imaging spectrometer Seidel aberration theory off-axial reflective optical system construction parameters without obscurationin imaging spectrometers
