Optics system consists of a spherical primary mirror MB at the southern end, a reflecting Schmidt corrector ma at the northern end, with the focal plate in between.
光学系统由在南端的球面主镜MB、在北端的反射施密特改正镜MA构成,焦面在中间。
2
The optics window of photoelectric equipment has strong reflecting characteristics for the incident laser beam, which is known as cat eye effect.