发明名称 |
Uniform speed scanning lens having a high resolving power |
摘要 |
A uniform speed scanning lens having a high resolving power comprises, in succession from the object side to the image side, a first component comprising a negative meniscus lens having its concave surface facing the object side, a second component comprising two or more positive lenses, and a third component comprising a negative lens having its concave surface facing the object side.
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申请公布号 |
US4527858(A) |
申请公布日期 |
1985.07.09 |
申请号 |
US19840675263 |
申请日期 |
1984.11.27 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
TAKAHASHI, SADATOSHI;TATEOKA, MASAMICHI |
分类号 |
G02B26/10;G02B9/34;G02B9/60;G02B13/00;G02B26/12;(IPC1-7):G02B9/58;G02B27/17 |
主分类号 |
G02B26/10 |
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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