偏振干涉滤光片宽角度光谱特性是设计研制中的关键。

The wide angle spectrum characteristic of polarization interference filter (PIF) is key to the design and manufacture.

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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。

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.

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