发明申请
US20130265540A1 METHOD FOR CALCULATING A SPECTACLE LENS WITH IMPROVED NEAR ZONE
有权
用于计算具有改进的近区域的透镜的方法
- 专利标题: METHOD FOR CALCULATING A SPECTACLE LENS WITH IMPROVED NEAR ZONE
- 专利标题(中): 用于计算具有改进的近区域的透镜的方法
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申请号: US13990202申请日: 2011-09-06
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公开(公告)号: US20130265540A1公开(公告)日: 2013-10-10
- 发明人: Gregor Esser , Wolfgang Becken , Helmut Altheimer , Andrea Welk , Anne Seidemann , Edda Wehner , Werner Mueller , Dietmar Uttenweiler
- 申请人: Gregor Esser , Wolfgang Becken , Helmut Altheimer , Andrea Welk , Anne Seidemann , Edda Wehner , Werner Mueller , Dietmar Uttenweiler
- 优先权: DE1020100520936.2 20101130
- 国际申请: PCT/EP2011/004485 WO 20110906
- 主分类号: G02C7/02
- IPC分类号: G02C7/02
摘要:
Optimization and production of a spectacle lens for a specific wearing situation for correcting at least one astigmatic refraction of an eye of a spectacles wearer, which in a reference viewing direction of the eye has a cylinder reference value and a cylinder reference axis, comprising: specifying an object distance for at least one evaluation point of the spectacle lens; determining a transformed astigmatic refraction for the at least one evaluation point of the spectacle lens from the cylinder reference value and the cylinder reference axis depending on the specified object distance; and optimizing the spectacle lens such that for the at least one evaluation point a correction of the transformed astigmatic refraction by the spectacle lens in the specific wearing situation is taken into consideration, wherein determining the transformed astigmatic refraction comprises determining a transformed cylinder value and/or a transformed cylinder axis depending on the specified object distance.
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