On the design basis of two orthogonal direction output, polarization interference filter, this paper focus on the color separation and combination module used for the LCOS projection display.

• 在介绍任意形状双通道偏振正交输出双折射晶体的偏振干涉滤光片基础上,讨论了LCOS液晶投影仪分色与合色系统基本结构,设计了分合色为一体的新型光引擎。