The optical apparatus comprises a light deflectionunit including a deflection optical member.
该光学 装置包括包含偏转光学元件的光偏转单元。
2
The focusing is effected after the deflectionunit via a focusing lens in front of the scanner head.
通过扫描头前方聚焦透镜的反射单元，调焦发生了变化。
3
A new concept on the displacement operator for beam unit is established, and a method of calculating the deflection Angle of beam unit is then provided.