发明名称 |
COLOR LIGHT COMBINING SYSTEM FOR OPTICAL PROJECTOR |
摘要 |
A color light combining system comprises a polarizing beam splitter that includes a reflective polarizer film, a first prism face that receives a first unpolarized color light, a second prism face that receives a second unpolarized color light, and a third prism face that provides a first combined light output that includes combined first color light polarized in a first direction and second color light polarized in a second direction. The polarizing beam splitter includes a reflector at a fourth prism face. A color-selective stacked retardation polarization filter faces the third prism face. The first color selective stacked retardation polarization filter provides a second combined light output that includes the first and second color lights that are combined and have the same polarization direction. |
申请公布号 |
EP2153268(A4) |
申请公布日期 |
2010.12.15 |
申请号 |
EP20080755047 |
申请日期 |
2008.05.05 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
MAGARILL, SIMON;SNIVELY, DAVID M. |
分类号 |
G02B27/10;G02B27/18 |
主分类号 |
G02B27/10 |
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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