发明授权
- 专利标题: Automatic modification of a progressive lens design
- 专利标题(中): 自动修改渐进式镜片设计
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申请号: US13145495申请日: 2009-12-09
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公开(公告)号: US08888280B2公开(公告)日: 2014-11-18
- 发明人: Helmut Altheimer , Wolfgang Becken , Gregor Esser , Dietmar Uttenweiler , Andrea Welk
- 申请人: Helmut Altheimer , Wolfgang Becken , Gregor Esser , Dietmar Uttenweiler , Andrea Welk
- 申请人地址: DE Munich
- 专利权人: Rodenstock GmbH
- 当前专利权人: Rodenstock GmbH
- 当前专利权人地址: DE Munich
- 代理机构: Schiff Hardin LLP
- 优先权: DE102009005214 20090120
- 国际申请: PCT/EP2009/008812 WO 20091209
- 国际公布: WO2010/083860 WO 20100729
- 主分类号: G02C3/00
- IPC分类号: G02C3/00 ; G02C7/00 ; G02C7/02
摘要:
A method and apparatus for creating a progressive spectacle lens design by transforming a starting design. The starting design is defined to include specifications for the course of a principal line and specification of at least one base target isoastigmatism line with a constant base target astigmatism, in which the base target isoastigmatism line passes through a first predetermined control point {right arrow over (r)}1=(u1,y1). The method and apparatus transform the starting design by shifting the first control point {right arrow over (r)}1=(u1,y1) along a predetermined or predeterminable curve, taking into account the design and/or the spectacle lens wearer-specific data; modifying the course of the base target isoastigmatism line such that it passes through the shifted first control point {right arrow over (r)}′1(u′1,y′1); and calculating a target astigmatism distribution A(u,y), which exhibits the modified base target isoastigmatism line. Furthermore, the method and apparatus are provided to create the spectacle lens on the basis of the progressive spectacle lens design.
公开/授权文献
- US20120016645A1 AUTOMATIC MODIFICATION OF A PROGRESSIVE LENS DESIGN 公开/授权日:2012-01-19
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