| 发明名称 |
Optical element and optical system having the same |
| 摘要 |
<p>In an optical element for reflecting light from an incidence surface of the optical element by one or more reflecting surfaces comprising off-axial curved surfaces, and causing the light to emerge from an emergence surface, at least one of the incidence surface, the emergence surface and the reflecting surface diffracting the light. <IMAGE></p> |
| 申请公布号 |
EP0908750(A2) |
申请公布日期 |
1999.04.14 |
| 申请号 |
EP19980117407 |
申请日期 |
1998.09.14 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
ARAKI, KEISUKE;TSUJI, SADAHIKO;TANAKA, TSUNEFUMI;KIMURA, KENICHI;NANBA, NORIHIRO;SARUWATARI, HIROSHI;ARATANI, MICHIHARU;AKIYAMA, TAKESHI |
| 分类号 |
G02B5/18;G02B17/00;G02B17/08;(IPC1-7):G02B17/06 |
主分类号 |
G02B5/18 |
| 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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