This paper designs an optical system and some lenses for the BD OPU, including collimator lens, beam shaping lens for laser beam shaping, and cylinder lens for signal detecting.

• 本文设计了一套蓝光光学读取头的光路系统，包括用于光束处理的准直镜，整形棱镜，还有用于信号探测的柱面镜。