The optical system includes at least one lens element, which outputs the light in a collimated beam on the oscillating reflector regardless of an orientation of the oscillating reflector.
该光学系统包括至少一个透镜元件，其与振荡反射器的定向无关地以准直光束的形式将光输出在振荡反射器上。
2
The aberration characteristics of the optical system of a single conic reflector and a two-lens null corrector are discussed.
讨论了由单一二次反射镜和放在其后的两透镜无光焦度校正板组成的光学系统的像差特性。
3
The optical system consists of glass reflector and divergent lens.