发明名称 |
Projection optical system, image display apparatus, and image display system |
摘要 |
The invention discloses a projection optical system for projecting an original image onto a projection surface. The projection optical system comprises a plurality of aspherical curved mirrors, which reflects image light from the original image in sequence and then forms an image on the projection surface. The projection optical system forms a projected image on the projection surface at an aspect ratio different from that of the original image by a combination of reflective actions of the image light on the aspherical surfaces of the plurality of aspherical curved mirrors. Even in a projection optical system having a wide angle of view and a short distance of projection, it is possible to implement a projection optical system that is capable of suppressing distortion and performing an optical aspect conversion.
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申请公布号 |
US2003067691(A1) |
申请公布日期 |
2003.04.10 |
申请号 |
US20020196304 |
申请日期 |
2002.07.16 |
申请人 |
KUREMATSU KATSUMI;SUNAGA TOSHIHIRO |
发明人 |
KUREMATSU KATSUMI;SUNAGA TOSHIHIRO |
分类号 |
G02B17/00;G02B27/18;G03B21/00;H04N5/44;H04N5/74;(IPC1-7):G02B17/00 |
主分类号 |
G02B17/00 |
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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