含二元光学元件的光学系统成像特性和设计方法

Imaging Properties & the Methods of Design for Optical System with Binary Optics Elements

二元光学元件（ＢＯＥ）用于常规光学系统可以提供附加设计参数和选择光学材料的自由度。本文主要研究了基面为平面或球面的旋转对称ＢＯＥ的成像特性以及设计制作的方法：用两种等效模型推导了ＢＯＥ的初级象差，分析了产生差别的物理实质；给出一、三级成像特性与色差公式，编制了程序可解析求解满足初级象差平衡的折／衍混合系统的初始结构参数，用ＣＯＤＥ—Ｖ校算，结果吻合；给出了生成掩膜的算法，编制了程序，在激光照排机上输出了掩膜图。最后结合可见、紫外、红外波段的３个典型系统设计例子，讨论了二元光学元件在光学系统中应用的场合和限制。

Binary optics element(BOE)used in conventioi1al system can provide addition alparamemeters ,freedom for material selection in optical design.This thesis mainly studies theimage properties & the methods of design and fabrication :By using two equivalent models,BOE's primary aberrations are deduced,the reason for the difference of these two models is analyzed;lst order and 3rd order image properties and chromatic aberrations are presented,and the program for the aberration analysis and the prelimenary solutions of refractive-diffractive hybrid system.which satisfies the balance of primary aberrations is accomplished,the resuIts are comsistent with those given by CODE V;The algorithm and program formask generating are presented,and the mask film is output using laser imager.With the design examples for some typical systems in visible,ultra-violet,infrared band,the applicationsof the BOE and its limitations are discussed in the end.