发明授权
US06669339B2 Fundus camera 失效
眼底相机

  • 专利标题: Fundus camera
  • 专利标题(中): 眼底相机
  • 申请号: US09813019
    申请日: 2001-03-21
  • 公开(公告)号: US06669339B2
    公开(公告)日: 2003-12-30
  • 发明人: Tsuguo Nanjyo
  • 申请人: Tsuguo Nanjyo
  • 优先权: JP2000-081048 20000322
  • 主分类号: A61B314
  • IPC分类号: A61B314
Fundus camera
摘要:
A fundus camera having a simplified unit mechanism having a fixation light disposed at a suitable position for efficiently guiding a sight line, the fundus camera comprising an illumination optical system for illuminating a fundus of an eye to be examined with visible illumination light for photographing and with invisible illumination light for observation, a photographing optical system having a first photographic element, for photographing an image of the fundus with visible reflection light from the fundus, an observation optical system having a second photographic element for photographing the image of the fundus with invisible reflection light from the fundus, a wavelength-selecting mirror dividing light into invisible light, a part of visible light, and most of the visible light, a light-dividing member further dividing the optical path of the observation optical system, and a fixation target disposed on the optical path divided from the optical path of the observation optical system by the light-dividing member and at a conjugate position with a photographing surface of the second photographic element.
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