发明名称 |
Projection display device |
摘要 |
In a projection display device, a polarization converting element is provided between an imager and a refracting optical system for converting a polarization direction of light after modulation into a direction radially extending from the center of the optical axis of the refracting optical system. Light transmitted through the polarization converting element is incident onto the refracting optical system in a state of P-polarized light or a state close to the state of P-polarized light. Thereby, the transmittance of light through the refracting optical system is made substantially uniform and increased. |
申请公布号 |
US8057044(B2) |
申请公布日期 |
2011.11.15 |
申请号 |
US20080244299 |
申请日期 |
2008.10.02 |
申请人 |
AMANO RYUHEI;SANYO ELECTRIC CO., LTD. |
发明人 |
AMANO RYUHEI |
分类号 |
G03B21/14;G02B5/30;G02B27/28 |
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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