发明名称 |
Polarizing beam splitter |
摘要 |
The present invention provides a unique polarizing beam splitter (PBS) that is suitable for use in projection systems and displays. The PBS contains at least one prism having at least one major surface and having a refractive index of at least about 1.6 and a birefringent film disposed on the major surface of the prism. The birefringent film is a multi-layer film having layers of at least a first material and a second material. After uniaxial stretching, the film exhibits a refractive index difference of less than about 0.15 units in the stretched direction.
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申请公布号 |
US6609795(B2) |
申请公布日期 |
2003.08.26 |
申请号 |
US20010878575 |
申请日期 |
2001.06.11 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
WEBER MICHAEL F.;BRUZZONE CHARLES L.;CONDO PETER D.;HAMER KEVIN M.;HEBRINK TIMOTHY J.;MERRILL WILLIAM W. |
分类号 |
G02B5/04;C08G63/12;G02B5/30;G02B27/28;G03B21/00;(IPC1-7):G03B21/00;G03B21/14;G02B1/10;B32B7/02 |
主分类号 |
G02B5/04 |
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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