CAJ | 학술논문

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。
고질량적성상광보의광학계통필수구비대선시장、대상대구경、관광보성상、체적소、중량경등우점，인차리축전반사계통성위해영역적일개연구방향。개소료일충기우새덕이상차이론적대선시장、대상대구경리축삼반광학계통적설계방법。해방법통과대초급상차방정조진행약속우화，구득만족요구적초시결구삼수，병재우화적과정중，불단지조정계통중각개경자적편심화경사，재보증성상질량지전제하，소제계통적차란。최후적설계결과표명료저충방법적유효성화가행성。
The high-qualified optical systems which are used in imaging spectrometers must have some advantages, 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. A method 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-order aberration theory. After the constrained optimization of a set of Seidel aberration coefficient functions, the designer could achieve the initial construction parameters of the optical system, i. e. the radii and separations of lenses. And during the designing process, decenters and tilts of mirrors were adjusted continuously 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.