发明授权
- 专利标题: Optical system and optical apparatus including the same
- 专利标题(中): 光学系统和包括其的光学装置
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申请号: US13027656申请日: 2011-02-15
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公开(公告)号: US08194319B2公开(公告)日: 2012-06-05
- 发明人: Hironobu Koga
- 申请人: Hironobu Koga
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Canon U.S.A., Inc. IP Division
- 主分类号: G02B5/18
- IPC分类号: G02B5/18
摘要:
An optical system and an optical apparatus capable of properly correcting chromatic aberration over a visible wavelength range are obtained. An optical system includes a diffractive optical element and a refractive optical element on at least one of an object side and an image side of a stop. The following conditions are satisfied: |Δθgd|>0.038 0.003
公开/授权文献
- US20110134530A1 OPTICAL SYSTEM AND OPTICAL APPARATUS INCLUDING THE SAME 公开/授权日:2011-06-09
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