发明授权
- 专利标题： Self-conscious type eye examining apparatus
- 专利标题（中）： 自觉型眼检仪
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申请号： US93158申请日： 1987-09-01
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公开(公告)号： US4798457A公开(公告)日： 1989-01-17
- 发明人: Kazuo Morohashi , Nobuyuki Miyake , Tsunemi Gonda
- 申请人： Kazuo Morohashi , Nobuyuki Miyake , Tsunemi Gonda
- 申请人地址： JPX Tokyo
- 专利权人： Nikon Corporation
- 当前专利权人： Nikon Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX57-152759 19820903
- 主分类号： A61B3/02
- IPC分类号： A61B3/02 ; A61B3/028
摘要：
A self-conscious type eye examining apparatus is provided with a Stokes' cross cylinder in a view field window, a spherical lens group having a plurality of spherical lenses selectively disposed in the optical path of the cross cylinder, a first electric rotating device coupled to the cross cylinder to rotate the cross cylinder independently, a second electric rotating device for inserting a predetermined lens of the spherical lens group into the view field window, and a control device for controlling the rotations of the first and second electric rotating devices in a predetermined relation.
公开/授权文献
- USD416889S Motion picture player 公开/授权日：1999-11-23