US 7,455,796 B2
Process for transferring a coating onto a surface of a lens blank
Peiqi Jiang, Tarpon Springs, Fla. (US); Fadi O. Adileh, Largo, Fla. (US); Yassin Yusef Turshani, Largo, Fla. (US); and Steven Weber, Clearwater, Fla. (US)
Assigned to Essilor International Compagnie Generale d'Optique, Charenton Cedex (France)
Appl. No. 10/482,722
PCT Filed Jul. 01, 2002, PCT No. PCT/EP02/07239
§ 371(c)(1), (2), (4) Date Jan. 02, 2004,
PCT Pub. No. WO03/004255, PCT Pub. Date Jan. 16, 2003.
Application 10/482722 is a continuation in part of application No. 09/899367, filed on Jul. 02, 2001, granted, now 6,562,466.
Prior Publication US 2004/0194880 A1, Oct. 07, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. B29D 11/00 (2006.01)
U.S. Cl. 264—1.7  [156/275.5; 156/275.7; 156/285; 156/295; 264/2.5] 56 Claims
OG exemplary drawing
 
1. A process for transferring a coating onto at least one geometrically defined surface of a lens blank which comprises:
providing a lens blank having at least one geometrically defined surface;
providing a flexible mold part having an internal surface bearing a coating and an external surface, the internal surface being conformable to the geometrically defined surface of the lens blank when brought into contact therewith;
depositing on said geometrically defined surface of said lens blank or said coating a pre-measured amount of a curable glue;
moving relatively to each other the lens blank and the flexible mold part to either bring the coating into contact with the curable glue or bring the curable glue into contact with the geometrically defined surface of the lens blank;
applying a sufficient pressure onto the external surface of the flexible mold part so that the thickness of a final glue layer after curing is less than 100 micrometers;
curing the glue; and
withdrawing the flexible mold part to recover the lens blank with the coating adhered onto the geometrically defined surface thereof.