Lens edging method, lens edging program and edging controller
US-2016031058-A1 · Feb 4, 2016 · US
Method for cutting-out a multi-layer ophthalmic lens
US9475166B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9475166-B2 |
| Application number | US-201314399715-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 3, 2013 |
| Priority date | May 9, 2012 |
| Publication date | Oct 25, 2016 |
| Grant date | Oct 25, 2016 |
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Abstract
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A method for cutting-out a multi-layer ophthalmic lens ( 100 ) following a desired contour (C 3 ), includes: a step of pre-blanking the ophthalmic lens ( 100 ) using a preliminary tool ( 210; 223 ), according to a preliminary contour (C 1, C 1′ ); a step of blanking the ophthalmic lens ( 100 ) using a blanking wheel ( 210 ), following a blanking contour (C 2, C 3 ); and a step of finishing the ophthalmic lens ( 100 ) using a finishing tool ( 212 ). According to the invention, the preliminary contour (C 1, C 1′ ) is larger than the desired contour (C 3 ), and the blanking wheel ( 210 ) used has a granulometry of between 0.1 and 0.5 mm and is controlled in relation to the ophthalmic lens ( 100 ) so as to apply a radial force of between 0.1 and 5 N to the ophthalmic lens ( 100 ) during the blanking step.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for trimming an ophthalmic lens along a desired outline, said ophthalmic lens comprising a substrate and at least one coating film that is made of a different material to that of the substrate and that covers a main face of the substrate, comprising: a step of pre-roughing the ophthalmic lens by means of a preliminary tool, along a preliminary outline separate and deduced from said desired outline; a step of roughing the ophthalmic lens by…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B24B9/148Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US9475166B2 cover?
- A method for cutting-out a multi-layer ophthalmic lens ( 100 ) following a desired contour (C 3 ), includes: a step of pre-blanking the ophthalmic lens ( 100 ) using a preliminary tool ( 210; 223 ), according to a preliminary contour (C 1, C 1′ ); a step of blanking the ophthalmic lens ( 100 ) using a blanking wheel ( 210 ), following a blanking contour (C 2, C 3 ); and a step of finishing th…
- Who is the assignee on this patent?
- Godeau Muriel, Lapprand Aude, Lemaire Cedric, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification B24B9/148. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 25 2016 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).