Invention Grant
- Patent Title: Method for determining a base system of diffraction gratings for color fringe correction of spectacle lenses
- Patent Title (中): 用于确定眼镜镜片颜色校正的衍射光栅的基本系统的方法
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Application No.: US13988239Application Date: 2011-11-16
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Publication No.: US09022560B2Publication Date: 2015-05-05
- Inventor: Wolfgang Becken , Gregor Esser , Helmut Altheimer , Edda Wehner , Stephan Trumm , Werner Mueller , Dietmar Uttenweiler
- Applicant: Wolfgang Becken , Gregor Esser , Helmut Altheimer , Edda Wehner , Stephan Trumm , Werner Mueller , Dietmar Uttenweiler
- Applicant Address: DE Munich
- Assignee: Rodenstock GmbH
- Current Assignee: Rodenstock GmbH
- Current Assignee Address: DE Munich
- Agency: Schiff Hardin LLP
- Priority: DE102010051637 20101117
- International Application: PCT/EP2011/005779 WO 20111116
- International Announcement: WO2012/065735 WO 20120524
- Main IPC: G02C7/06
- IPC: G02C7/06 ; G02C7/02
Abstract:
A method for producing a series of base lenses, which cover a predetermined power range, wherein each base lens of the series has a base power different from the base powers of the other base lenses of the series, and has at least one diffractive base grating, the method comprising: specifying the base powers of each base lens of the series and calculating the base grating of each base lens of the series so as to minimize the color fringe of the respective base lens with the specified base power in a predetermined region of the spectacle lens.
Public/Granted literature
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