Invention Application
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
- Patent Title: METHOD FOR CALCULATING A SPECTACLE LENS WITH IMPROVED NEAR ZONE
- Patent Title (中): 用于计算具有改进的近区域的透镜的方法
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Application No.: US13990202Application Date: 2011-09-06
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Publication No.: US20130265540A1Publication Date: 2013-10-10
- Inventor: Gregor Esser , Wolfgang Becken , Helmut Altheimer , Andrea Welk , Anne Seidemann , Edda Wehner , Werner Mueller , Dietmar Uttenweiler
- Applicant: Gregor Esser , Wolfgang Becken , Helmut Altheimer , Andrea Welk , Anne Seidemann , Edda Wehner , Werner Mueller , Dietmar Uttenweiler
- Priority: DE1020100520936.2 20101130
- International Application: PCT/EP2011/004485 WO 20110906
- Main IPC: G02C7/02
- IPC: G02C7/02

Abstract:
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.
Public/Granted literature
- US08992014B2 Method for calculating a spectacle lens with improved near zone Public/Granted day:2015-03-31
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