公开(公告)号：CA2691219C

公开(公告)日：2015-09-08

申请号：CA2691219

申请日：2008-06-17

Applicant: ESSILOR INT

Inventor： BERZON RONALD ,  CHEN XU ,  DANG HOA THIEN ,  HARMON RONALD ,  LOCKWOOD MATTHEW ,  OBORDO JOEY OLIVEROS ,  VALERI ROBERT ALAN

IPC: B29D11/00 ,  B29C37/00 ,  B29C45/04

Abstract: A method and coating used to prepare a photo chromically-enabled bifocal ophthalmic lens. The method and equipment includes injection molding a single vision lens (10e), for example, from polycarbonate. The clamp opens vertically and the top insert (20) is exchanged for a bifocal mold (30) having a base curve similar to the single vision lens. The thermos et coating includes compounds from several acrylate classes, and is applied to the single vision lens. The coating may include a photochromic dye. The coating is also formulated to receive a photochromic solution through an imbibition process.

公开(公告)号：CA2691231A1

公开(公告)日：2008-12-24

申请号：CA2691231

申请日：2008-06-18

Applicant: ESSILOR INT

Inventor： BERZON RONALD

IPC: B29D11/00 ,  C08J7/04

Abstract: A method and coating used to prepare a photochromically-enabled bifocal ophthalmic lens. The coating is a high adhesive strength acrylate-based coating that contains a small quantity of a polycarbonate-based TPU. The coating is applied to produce an intermediate imbibable bifocal surface. A photochromic solution is subsequently imbibed by contact with the bifocal surface.

公开(公告)号：CA2691219A1

公开(公告)日：2008-12-24

申请号：CA2691219

申请日：2008-06-17

Applicant: ESSILOR INT

Inventor： BERZON RONALD ,  CHEN XU ,  DANG HOA THIEN ,  HARMON RONALD ,  LOCKWOOD MATTHEW ,  OBORDO JOEY OLIVEROS ,  VALERI ROBERT ALAN

IPC: B29D11/00 ,  B29C37/00 ,  B29C45/04

Abstract: A method and coating used to prepare a photo chromically-enabled bifocal ophthalmic lens. The method and equipment includes injection molding a single vision lens (10e), for example, from polycarbonate. The clamp opens vertically and the top insert (20) is exchanged for a bifocal mold (30) having a base curve similar to the single vision lens. The thermos et coating includes compounds from several acrylate classes, and is applied to the single vision lens. The coating may include a photochromic dye. The coating is also formulated to receive a photochromic solution through an imbibition process.