激光测照器光学系统小型化的研究

为解决传统激光测照器光学系统只实现光束准直、光束均匀度较差的问题，对激光测照器光学系统小型 化进行研究。对激光光束进行扩束，利用盖师贝格-撒克斯通(Gerchberg-Saxton，GS)改进算法设计用于光束匀化和 准直的二元光学元件B1 和B2，根据光功率恒定原理，建立光束匀化的坐标变换公式，在ZEMAX 中编写宏指令设计 非球面透镜组光学系统。结果表明：该系统能使光束均匀度达到96.2%，发散角优于0.25 mrad，实现了光学系统的 小型化(光学系统结构为110 mm×42 mm×42 mm)。

Miniaturization of Optical System for Laser Illuminator

In order to solve the problem that the traditional laser illuminator optical system only realizes the beam collimation and the beam uniformity is poor, the miniaturization of the laser illuminator optical system is studied. Expanding the laser beam, the binary optical elements B1 and B2 for beam homogenization and collimation are designed by Gerchberg-Saxton (GS) improved algorithm. According to the principle of constant optical power, the coordinate transformation formula of beam homogenization is established, and the macroinstruction is written in ZEMAX to design the optical system of aspheric lens group. The results show that the system can make the beam uniformity reach 96.2%, the divergence angle is better than 0.25 mrad, and realize the miniaturization of the optical system (the optical system size is 110 mm×42 mm×42 mm).