发明名称 |
Projection image display apparatus and polarization converter with optimally aligned phase difference plates |
摘要 |
Disclosed is a projection image display apparatus which includes a light source; and an illumination optics including a phase difference plate. The illumination optics is configured to form an image on a liquid crystal panel with light beams emitted from the light source. The phase difference plate has a deviation in viewing angle characteristics and is arranged to yield a desirable phase difference for a light beam directed in a direction of high intensity among incident light beams distributed at various angles. |
申请公布号 |
US8201946(B2) |
申请公布日期 |
2012.06.19 |
申请号 |
US20080268565 |
申请日期 |
2008.11.11 |
申请人 |
HORIKOSHI RYOKO;SONY CORPORATION |
发明人 |
HORIKOSHI RYOKO |
分类号 |
G03B21/14;G02B5/30 |
主分类号 |
G03B21/14 |
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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