The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2015
Filed:
Dec. 21, 2009
Helmut Altheimer, Baisweil-Lauchdorf, DE;
Wolfgang Becken, Munich, DE;
Gregor Esser, Munich, DE;
Dietmar Uttenweiler, Icking, DE;
Helmut Altheimer, Baisweil-Lauchdorf, DE;
Wolfgang Becken, Munich, DE;
Gregor Esser, Munich, DE;
Dietmar Uttenweiler, Icking, DE;
Rodenstock GmbH, Munich, DE;
Abstract
A method and apparatus for creating a progressive spectacle lens design by transforming a starting design. The starting design is defined to include specification of a principal line, specifications for target astigmatism values A(u=0,y) along the principal line, and specifications for the course of a base target isoastigmatism line, which is described by a one-dimensional function of the form u(y)=ƒ(y). The method and apparatus transform the starting design by modifying the course of the base target isoastigmatism line u(y)→u'(y), and calculating the target astigmatism values A(u,y) of the spectacle lens design by an interpolation between the target astigmatism values A(u=0,y) on the principal line and the target astigmatism values A(u′(y),y) on the modified base target isoastigmatism line. Furthermore, the method and apparatus are provided to create the spectacle lens for the wearer on the basis of the progressive spectacle lens design.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile