发明授权
- 专利标题: Fundus camera
- 专利标题(中): 眼底相机
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申请号: US12415547申请日: 2009-03-31
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公开(公告)号: US07837329B2公开(公告)日: 2010-11-23
- 发明人: Masayuki Yoshino , Yoshiaki Mimura , Akira Tawada , Naoki Ichikawa
- 申请人: Masayuki Yoshino , Yoshiaki Mimura , Akira Tawada , Naoki Ichikawa
- 申请人地址: JP Aichi-ken
- 专利权人: Nidek Co., Ltd.
- 当前专利权人: Nidek Co., Ltd.
- 当前专利权人地址: JP Aichi-ken
- 代理机构: Muncy, Geissler, Olds & Lowe, PLLC
- 优先权: JP2008-092397 20080331; JP2008-255757 20080930; JP2009-040245 20090224
- 主分类号: A61B3/14
- IPC分类号: A61B3/14
摘要:
A fundus camera favorably performing focusing on a fundus of an examinee's eye without a black dot plate in a target projection optical system comprises an illumination optical system comprising a light source and an objective lens, a photographing optical system comprising a focusing lens movable in the optical axis direction and a diopter correction lens to correct a diopter of severe ametropia, a first moving mechanism comprising a first driving unit moving the focusing lens, a focus detection optical system comprising a projection optical system comprising a light source and a photo-receiving optical system comprising a photodetector, a second moving mechanism comprising a second driving unit moving a part of the detection optical system including at least one of the projection light source and the photodetector in the optical axis direction, a monitor, and a control unit controlling the second unit in conjunction with movement of the focusing lens.
公开/授权文献
- US20090244483A1 FUNDUS CAMERA 公开/授权日:2009-10-01