发明名称 |
Lens device and projector having diaphragm mechanisms with substantially square apertures |
摘要 |
The invention provides a lens device of a projector for projecting light that has been modulated and emitted by a display device, wherein said lens device has an optical axis and is arranged telecentric to rays of light emitted from said display device, said lens device has a diaphragm mechanism having an aperture at such a position that the lens device causes principal rays emitted from various locations on the display device to intersect with the optical axis, and said aperture is substantially square.
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申请公布号 |
US7111947(B2) |
申请公布日期 |
2006.09.26 |
申请号 |
US20060331027 |
申请日期 |
2006.01.13 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
ABE HIROKI;FUJIMORI TOMOO;TAKAHASHI MOTOO;SAMEJIMA KENJI |
分类号 |
G02B13/16;G03B21/00;G02B13/22;G02B27/18;G02F1/13;G02F1/133;G02F1/1335;G03B3/00;G03B9/02;G03B21/14;G03B21/22;H04N9/31 |
主分类号 |
G02B13/16 |
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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