发明授权
US5108174A Method and device for determining lens characteristics including its
power
失效
用于确定包括其功率的镜头特性的方法和装置
- 专利标题： Method and device for determining lens characteristics including its power
- 专利标题（中）： 用于确定包括其功率的镜头特性的方法和装置
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申请号： US601434申请日： 1990-10-23
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公开(公告)号： US5108174A公开(公告)日： 1992-04-28
- 发明人: Xavier Lippens
- 申请人： Xavier Lippens
- 申请人地址： FRX Creteil Cedex
- 专利权人： Essilor International Cie Generale d'Optique
- 当前专利权人： Essilor International Cie Generale d'Optique
- 当前专利权人地址： FRX Creteil Cedex
- 优先权： FRX8914782 19891110
- 主分类号： G01M11/00
- IPC分类号： G01M11/00 ; G01M11/02
摘要：
To determine the focal power of an ophthalmic lens, a plurality of light rays are passed through the lens and a photosensitive position sensor is disposed on the exit side of the lens to measure the coordinates of the points at which the light beams impinge on an analysis plane perpendicular to the lens axis. The light rays comprise three light rays on a circle and a light ray on the system axis.
公开/授权文献
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