共形光学系统设计研究

The Research of Conformal Optical System Design

设计了一个红外波段共形光学系统,并提出了整体解决方案。共形光学系统具有大偏心、大倾斜光学特性,因其特殊的光学结构须用瞬间视场和目标视场两个视场参量来描述,像差同时随两视场的变化而变化,使系统设计难度大幅增加。通过建立扩展形式的Wassermann-Wolf曲面结构、建立实际光线追迹模型与Zernike多项式模型相辅相成的像差评价体系,提出了共形光学系统整体设计方案,并给出了设计实例。实例结果表明,系统在整个目标视场范围内均得到较好成像质量。

A conformal optical system operating at infrared wavelength is designed and whole design solution is presented. The conformal optical system which is discentered and tilted needs two parameters to describe itself through field of regard （FOR） and field of view （FOV）. With variation of both fields, the system has dynamically varied characteristics in content of aberrations and the system＇s design becomes more difficult. Finally a whole design solution is presented in which an optical structure is based on extended Wassermann-Wolf surfaces, and estimating model of aberrations is also constructed by real raytracing and Zernike polynomials. An demonstrated example is illustrated and a fine image quality is obtained over full FOV.