Optical lens coated with a patterned removable film and method for edging such a lens
US-2017097446-A1 · Apr 6, 2017 · US
Method of shaping an ophthalmic lens
US8926401B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8926401-B2 |
| Application number | US-201113223401-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 1, 2011 |
| Priority date | Sep 7, 2010 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A method of shaping an ophthalmic lens for mounting in a mixed surround of an eyeglass frame that presents at least one half-rim, includes: a) a step of acquiring a longitudinal profile characterizing the shape desired for the outline of the lens; b) a step of subdividing the longitudinal profile into a first arc associated with the half-rim and a second arc, in which step the positions of two singular points of the longitudinal profile are acquired that characterize the positions of the two ends of the half-rim; c) a first step of finishing the ophthalmic lens, during which a first portion of its outline is brought to the shape of the first arc; and d) a second step of finishing the ophthalmic lens, during which a second portion of its outline is brought to the shape of the second arc. In step b), the position of at least one of the two acquired singular points is corrected so as to reduce the length of the first arc of the longitudinal profile.
First claim
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What is claimed is: 1. A shaping method for shaping an ophthalmic lens for mounting in a mixed surround of an eyeglass frame, the method comprising: a) a step of acquiring a longitudinal profile characterizing the shape desired for an outline of said ophthalmic lens; b) a step of subdividing said longitudinal profile into a final first arc associated with a first segment of the mixed surround and a second arc distinct from said final first arc, in which step the positions of two…
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Frequently asked questions
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- What does patent US8926401B2 cover?
- A method of shaping an ophthalmic lens for mounting in a mixed surround of an eyeglass frame that presents at least one half-rim, includes: a) a step of acquiring a longitudinal profile characterizing the shape desired for the outline of the lens; b) a step of subdividing the longitudinal profile into a first arc associated with the half-rim and a second arc, in which step the positi…
- Who is the assignee on this patent?
- Lemaire Cédric, Batherosse Romain, Essilor Int
- What technology area does this patent fall under?
- Primary CPC classification B24B9/14. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).