发明申请
- 专利标题： OPTICAL SYSTEM, BARREL, AND OPTICAL INSTRUMENT USING SAME
- 专利标题（中）： 光学系统，棒材和光学仪器
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申请号： US13454148申请日： 2012-04-24
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公开(公告)号： US20120275027A1公开(公告)日： 2012-11-01
- 发明人: Takeharu OKUNO
- 申请人： Takeharu OKUNO
- 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
- 优先权： JP2011-097767 20110426
- 主分类号： G02B1/11
- IPC分类号： G02B1/11 ; G02B3/00
摘要：
Provided is an optical system having at least two or more lenses, wherein at least one of the lenses comprises an anti-reflection film formed by a wetting method on a part of or the entirety of the light beam effective surface thereof, and wherein at least one of the lenses other than the lens comprising the anti-reflection film is fixed to the space between the lens and a barrel for holding the lens via an energy-curable resin to be filled therein.
公开/授权文献
- US09250362B2 Optical system, barrel, and optical instrument using 公开/授权日：2016-02-02
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