发明名称 |
POLARIZING BEAM SPLITTER AND PROJECTION DEVICE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polarizing beam splitter capable of providing a compact projection device with high use efficiency of light, and provide a projection device using the polarizing beam splitter. <P>SOLUTION: A polarizing beam splitter (14) includes a polarization split surface (141) for transmitting a polarization component in a predetermined direction and reflecting a polarization component in a substantially orthogonal direction to the predetermined direction. The polarization split surface (141) is configured to include a curved surface so as to focus the reflected light in the polarization split surface (141). A projection device (1) is configured using the polarizing beam splitter (14). <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2012208202(A) |
申请公布日期 |
2012.10.25 |
申请号 |
JP20110072041 |
申请日期 |
2011.03.29 |
申请人 |
ASAHI KASEI E-MATERIALS CORP |
发明人 |
TANAKA YUJI |
分类号 |
G02B5/30;G03B21/00;G03B21/14;H04N5/74 |
主分类号 |
G02B5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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