continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6769/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :06/08/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "PROCESS FOR EDGING OPTICAL LENSES"
(51) International classification :B24B 9/14 (71)Name of Applicant :
(31) Priority Document No :60/774,346
1)ESSILOR INTERNATIONAL (COMPAGNIE
(32) Priority Date :17/02/2006 GENERALE D' OPTIQUE)
(33) Name of priority country :U.S.A.
Address of Applicant :147 RUE DE PARIS, 94220
(86) International Application No :PCT/EP2007/051450 CHARENTON LE PONT, FRANCE. France
Filing Date
:14/02/2007 (72)Name of Inventor :
(87) International Publication No :WO 2007/093620 1)GERALD FOURNAND
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
2)AGNES DE LEUZE-JALLOULI
3)BRUCE KEEGAN
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
A process for edging an optical lens for conforming the optical lens to the size and shape of a lens frame into which the optical lens is
to be accommodated, said process comprising : a) providing an optical lens having a convex surface, the convex surface being
provided with an anti-smudge topcoat rendering the optical lens inappropriate for edging : b) fixing a mounting element on the convex
surface of the optical lens, preferably on its center, by means of an adhesive pad adhering both to the mounting element and the
convex surface of the optical lens to form a mounting element/optical lens assembly ; c) placing the mounting element/optical lens
assembly in a grinding machine so that the optical lens is firmly maintained ; and d) edging the optical lens to the intended size and
shape, wherein, prior to step (b) of fixing the mounting element, the anti-smudge topcoat on the convex surface of the optical lens is
pre-treated with a solvent selected from the group consisting of alkanols and dialkyiketones under a mechanical stress.
No. of Pages : 13 No. of Claims : 11
The Patent Office Journal 24/10/2008 26195