Invention Grant
US09022565B2 Method and apparatus for checking the centering of spectacles worn by a spectacle wearer
有权
用于检查由眼镜佩戴者佩戴的眼镜的对中的方法和装置
- Patent Title: Method and apparatus for checking the centering of spectacles worn by a spectacle wearer
- Patent Title (中): 用于检查由眼镜佩戴者佩戴的眼镜的对中的方法和装置
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Application No.: US13021796Application Date: 2011-02-07
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Publication No.: US09022565B2Publication Date: 2015-05-05
- Inventor: Ralf-Roland Sauer , Matthias Kubitza , Jésus Miguel Cabeza Guillén
- Applicant: Ralf-Roland Sauer , Matthias Kubitza , Jésus Miguel Cabeza Guillén
- Applicant Address: DE Aalen
- Assignee: Carl Zeiss Vision GmbH
- Current Assignee: Carl Zeiss Vision GmbH
- Current Assignee Address: DE Aalen
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: DE102008039416 20080813
- Main IPC: A61B3/11
- IPC: A61B3/11 ; G02C13/00

Abstract:
A method and an apparatus serve for checking the centering of spectacles worn by a spectacle wearer. The method comprises the steps of: a) measuring spectacle lenses mounted in a frame of the spectacles, wherein a position of permanent markings on the spectacle lenses is acquired relative to a coordinate system defined by the frame by means of an image recognition system; b) determining positions of nominal centering points, prescribed in a file, of the spectacle lenses in dependence on data of the spectacle lenses containing the position of the permanent markings; c) measuring physiological data of a spectacle wearer wearing the spectacles and determining positions of actual centering points of the spectacle lenses from the physiological data by means of a video centering instrument; d) determining the difference between the positions of the nominal centering points and the actual centering points; and e) comparing the difference to a prescribed difference threshold.
Public/Granted literature
- US20110205487A1 METHOD AND APPARATUS FOR CHECKING THE CENTERING OF SPECTACLES WORN BY A SPECTACLE WEARER Public/Granted day:2011-08-25
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