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演示了实现高亮度液晶投影显示的三种光路。在每种方式中，非偏振入射光的两个偏振分量都得到有效的利用，从而达到了极佳的光调制效率。并分析了每种方式的优点与缺点。
Demonstrated the realization of high-brightness LCD projection display of the three light paths. In either approach, both polarization components of unpolarized incident light are effectively utilized, resulting in excellent light modulation efficiency. And analyzed the advantages and disadvantages of each method.