Invention Application
- Patent Title: Series of progressive ophthalmic lenses with low divergence and rotation of astigmatism
- Patent Title (中): 渐进式眼镜系列具有低散光和旋转散光
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Application No.: US10573791Application Date: 2004-08-23
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Publication No.: US20070035696A1Publication Date: 2007-02-15
- Inventor: Helmut Altheimer , Gregor Esser , Wolfgang Becken , Walter Haimerl , Andrea Welk , Edda Wehner
- Applicant: Helmut Altheimer , Gregor Esser , Wolfgang Becken , Walter Haimerl , Andrea Welk , Edda Wehner
- Applicant Address: DE Muenchen D-80469
- Assignee: Rodenstock GmbH
- Current Assignee: Rodenstock GmbH
- Current Assignee Address: DE Muenchen D-80469
- Priority: DE10345214.1 20030929
- International Application: PCT/EP04/09400 WO 20040823
- Main IPC: G02C7/06
- IPC: G02C7/06

Abstract:
An ophthalmic lens and a method for producing a progressive ophthalmic lens having at least one progressive surface, where by a calculation and optimization step in the production of the progressive lens is performed. The absolute value of the rotation |rot {right arrow over (A)}| and/or the divergence |div {right arrow over (A)}| of a vectorial astigmatism {right arrow over (A)} is as small as possible, and the absolute value |{right arrow over (A)}| of the vectorial astigmatism {right arrow over (A)} is proportional to the absolute value of an astigmatism in the use position of the progressive lens. The direction of the vectorial astigmatism {right arrow over (A)} is proportional to the axial position of an astigmatism in the use position of the progressive lens or a surface astigmatism of the at least one progressive surface of the progressive lens.
Public/Granted literature
- US07334893B2 Series of progressive ophthalmic lenses with low divergence and rotation of astigmatism Public/Granted day:2008-02-26
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