Aiming at the question that radiation Angle of emergent rays is quite large, we optimized the structure of lens duct.

针对透镜导管出射光线发散角较大的问题，对其结构进行了优化设计。

youdao

Aiming at the question that radiation Angle of emergent rays is quite large, we optimized the structure of lens duct.

针对透镜导管出射光线发散角较大的问题，对其结构进行了优化设计。

youdao