发明授权
- 专利标题: Ophthalmological instrument with improved alignment mechanism
- 专利标题(中): 具有改善对准机制的眼科仪器
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申请号: US548155申请日: 1995-10-25
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公开(公告)号: US5682224A公开(公告)日: 1997-10-28
- 发明人: Akinari Takagi , Hiroshi Iijima
- 申请人: Akinari Takagi , Hiroshi Iijima
- 申请人地址: JPX Tokyo
- 专利权人: Kabushiki Kaisha Topcon
- 当前专利权人: Kabushiki Kaisha Topcon
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX6-262609 19941026; JPX6-320019 19941222
- 主分类号: A61B3/10
- IPC分类号: A61B3/10 ; A61B3/14 ; A61B3/15 ; A61B3/16
摘要:
An alignment luminous flux is projected toward the cornea of an eye-to-be-detected by an alignment light projecting optical system. The alignment luminous flux reflected by the cornea is imaged on two light receiving means by an alignment light imaging optical system one of which light receiving means is disposed on the front side of an light collecting position adjacent to the cornea when the cornea is in a correct working distance and the other of which is on the back side.
公开/授权文献
- US3981477A Die segment for briquetting roll 公开/授权日:1976-09-21