发明申请
- 专利标题: FUNDUS CAMERA
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申请号: US12432626申请日: 2009-04-29
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公开(公告)号: US20090279051A1公开(公告)日: 2009-11-12
- 发明人: Nobuyoshi Kishida , Tomoyuki Iwanaga , Hideyuki Ohban , Shinya Tanaka
- 申请人: Nobuyoshi Kishida , Tomoyuki Iwanaga , Hideyuki Ohban , Shinya Tanaka
- 申请人地址: JP TOKYO
- 专利权人: CANNON KABUSHIKI KAISHA
- 当前专利权人: CANNON KABUSHIKI KAISHA
- 当前专利权人地址: JP TOKYO
- 优先权: JP2008-122916 20080509
- 主分类号: A61B3/14
- IPC分类号: A61B3/14 ; A61B3/12
摘要:
A fundus camera includes a fundus photographing optical system including an image-recording image sensor for photographing a fundus image via a focusing lens, a focus target having a plurality of regions for forming light fluxes passing through a plurality of different areas on pupil of a subject's eye, and a focus drive unit for driving the focusing lens based on positions of a plurality of images of the focus target in an image captured by the image-recording image sensor and on contrast of the images.
公开/授权文献
- US08002411B2 Fundus camera 公开/授权日:2011-08-23
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