发明名称 |
PROJECTION OPTICAL SYSTEM AND IMAGE PROJECTING APPARATUS |
摘要 |
A projection optical system including a first optical system configured to form a second image conjugate to a first image and a second optical system configured to include a reflective optical element which reflects light from the second image and to project a third image conjugate to the second image onto a projection surface is provided, wherein the first optical system has a Petzval sum with a sign opposite to a sign of a Petzval sum of the second optical system.
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申请公布号 |
US2008068563(A1) |
申请公布日期 |
2008.03.20 |
申请号 |
US20070854825 |
申请日期 |
2007.09.13 |
申请人 |
ABE ISSEI;FUJITA KAZUHIRO;TAKAURA ATSUSHI |
发明人 |
ABE ISSEI;FUJITA KAZUHIRO;TAKAURA ATSUSHI |
分类号 |
G03B21/28 |
主分类号 |
G03B21/28 |
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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