中文摘要：

极化的宽带的表演横梁 splitters (PBS ) 对事件角度敏感。由考虑激光来源的光谱并且使用针优化方法，为基于激光的显示的大接受角度 PBS 被设计。在传播和思考的极化的平均的度能为 13.6 的一个接受角度到达 0.989 和 0.980 ? 僚 ????????? 瀠潨潴楮 ????? 倨 ???????? 潰慬楲敺吗？

英文摘要：

The performance of broadband polarizing beam splitters（PBSs） is sensitive to the incident angle.By taking account of the spectrum of the laser source and using the needle optimization method,a large acceptance angle PBS for laser-based displays is designed.The average degrees of polarization in transmission and reflection can reach 0.989 and 0.980 for an acceptance angle of 13.6in air using two materials,while better results of 0.993 and 0.989 for an acceptance angle of 14.8？in air are attained when three common materials are used.Both designs consist of 40 layers.