Invention Grant
- Patent Title: Prescription-dependent and individualization-dependent modification of the temporal peripheral nominal astigmatism and adaption of the object distance function to changed object distances for near and/or far vision
- Patent Title (中): 时间周边标称散光的处方依赖和个性化依赖性修改,以及物体距离函数适用于近视和/或远视的变化的物体距离
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Application No.: US13880922Application Date: 2011-10-13
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Publication No.: US09176331B2Publication Date: 2015-11-03
- Inventor: Helmut Altheimer , Robert Kaster , Martin Zimmermann , Wolfgang Becken , Gregor Esser , Dietmar Uttenweiler , Andrea Welk
- Applicant: Helmut Altheimer , Robert Kaster , Martin Zimmermann , Wolfgang Becken , Gregor Esser , Dietmar Uttenweiler , Andrea Welk
- Applicant Address: DE Munich
- Assignee: Rodenstock GmbH
- Current Assignee: Rodenstock GmbH
- Current Assignee Address: DE Munich
- Agency: Schiff Hardin LLP
- Priority: DE102010049168 20101021
- International Application: PCT/EP2011/005144 WO 20111013
- International Announcement: WO2012/052133 WO 20120426
- Main IPC: G02C7/02
- IPC: G02C7/02 ; G02C7/06

Abstract:
Method for optimization of a progressive spectacle lens, which method comprises: defining a starting nominal astigmatism distribution for the spectacle lens; determining a transformed nominal astigmatism distribution and optimizing the spectacle lens on the basis of the transformed nominal astigmatism distribution, wherein the determination of a transformed nominal astigmatism distribution comprises multiplication of the maximum temporal nominal astigmatism of the starting nominal astigmatism distribution by a factor k as a result of which a modified maximum temporal astigmatism is obtained, wherein k is a function of a prescription value, and/or at least of one parameter of the spectacle lens or of the arrangement thereof in front of the eyes, and transformation of the starting nominal astigmatism distribution on the basis of the modified maximum temporal astigmatism.
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