Invention Grant
US09459468B2 Method of making a spectacle lens providing an astigmatic correction and spectacles including said spectacle lens
有权
制造提供散光矫正的眼镜镜片和包括所述眼镜镜片的眼镜的方法
- Patent Title: Method of making a spectacle lens providing an astigmatic correction and spectacles including said spectacle lens
- Patent Title (中): 制造提供散光矫正的眼镜镜片和包括所述眼镜镜片的眼镜的方法
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Application No.: US13901270Application Date: 2013-05-23
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Publication No.: US09459468B2Publication Date: 2016-10-04
- Inventor: Helmut Wietschorke
- Applicant: Carl Zeiss Vision International GmbH
- Applicant Address: DE Aalen
- Assignee: Carl Zeiss Vision International GmbH
- Current Assignee: Carl Zeiss Vision International GmbH
- Current Assignee Address: DE Aalen
- Agency: Walter Ottesen, P.A.
- Priority: DE102012010221 20120523
- Main IPC: G02C7/02
- IPC: G02C7/02 ; G02C7/06 ; A61B3/103

Abstract:
A method of making a spectacle lens providing at least an astigmatic correction includes measuring a direction of an axis of an astigmatism of an eye for each of three different directions of gaze of the eye. Thereafter, a position of the spectacle lens is determined relative to the eye. A shape of a surface of the spectacle lens is computed based on the determined position of the spectacle lens relative to the eye and the at least three measured directions of the axis of the astigmatism. A primary orientation of the eye is determined based on the three measured directions of the axis of the astigmatism. The shape of the surface of the spectacle lens is calculated based on the determined position of the spectacle lens relative to the eye and by applying Listing's Law based on the determined primary orientation of the eye.
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