Invention Grant
- Patent Title: Method for determining an ophthalmic lens
- Patent Title (中): 确定眼科镜片的方法
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Application No.: US12442840Application Date: 2007-09-25
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Publication No.: US08007102B2Publication Date: 2011-08-30
- Inventor: Diane De Gaudemaris , Cyril Guilloux , Fabien Muradore
- Applicant: Diane De Gaudemaris , Cyril Guilloux , Fabien Muradore
- Applicant Address: FR Charenton Cedex
- Assignee: Essilor International (Compagnie Générale d'Optique)
- Current Assignee: Essilor International (Compagnie Générale d'Optique)
- Current Assignee Address: FR Charenton Cedex
- Agency: HKH Law, LLC
- Priority: FR0608515 20060928
- International Application: PCT/FR2007/001562 WO 20070925
- International Announcement: WO2008/037892 WO 20080403
- Main IPC: G02C7/02
- IPC: G02C7/02 ; G02C7/04 ; G02C7/06

Abstract:
A method for determining an ophthalmic lens includes choosing an initial lens with a first face and a second face and defining an initial surface for the second face of the lens with a central zone of diameter Dini and a peripheral zone of inner diameter Drac greater than the diameter Dini of the central zone, each point of the central zone and the peripheral zone having an altitude defined with respect to an axis (Z) normal to the second face of the lens and having the centre of the central zone as its origin, the altitude of the peripheral zone being defined as the minimum of the points situated on the diameter Drac; the peripheral zone having a maximum radius of curvature comprised between the maximum radius of curvature of the first face and the maximum radius of curvature of the central zone.
Public/Granted literature
- US20090244480A1 METHOD FOR DETERMINING AN OPHTHALMIC LENS Public/Granted day:2009-10-01
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