发明名称 |
Reflecting optical system |
摘要 |
A reflecting optical system including a concave mirror and a convex mirror having opposing reflecting surfaces and disposed coaxially with each other. The reflecting optical system is provided with aspherical lens portions disposed between an object field and the concave mirror and between the concave mirror and an image field, respectively, to achieve a wider superior imaging region of arcuate shape.
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申请公布号 |
US4688904(A) |
申请公布日期 |
1987.08.25 |
申请号 |
US19840662601 |
申请日期 |
1984.10.19 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HIROSE, RYUSHO;SUZUKI, AKIYOSHI |
分类号 |
G02B13/18;G02B17/00;G02B17/08;G03F7/20;(IPC1-7):G02B17/08 |
主分类号 |
G02B13/18 |
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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