Surface casting onto a polycarbonate photochromic substrate

Details Surface casting onto a polycarbonate photochromic substrate Surface casting onto a polycarbonate photochromic substrate

2006-06-07

2011-10-04

Johnson, Christina (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Changing mold size or shape during molding or with shrinkage...

Reexamination Certificate

active

08029707

ABSTRACT:
A system and method for providing photochromic segmented multifocal optical lenses. A latex primer formulation is provided for effectuating adhesion of a surface casting composition onto a lens having a photochromic coating. The method provides efficient, cost effective production of durable photochromic segmented lenses, via secure adhesion of a surface casting layer onto a photochromic substrate while maintaining desirable optical characteristics. A composite optical lens is advantageously formed having a photochromic base lens, a primer composition bonded to a convex surface of said base lens, and a cured casting composition bonded to said primer composition layer. The cured casting formulation includes a segment region to impart multifocal qualities onto the resultant composite optical lens.

REFERENCES:
patent: 5531940 (1996-07-01), Gupta et al.
patent: 5702819 (1997-12-01), Gupta et al.
patent: 6455653 (2002-09-01), Nunez et al.
patent: 6630083 (2003-10-01), Nunez et al.
patent: 2003/0017340 (2003-01-01), Jiang et al.
patent: 2004/0194880 (2004-10-01), Jiang et al.
patent: 2005/0089630 (2005-04-01), Schlunt et al.
patent: 198780556A1 (1988-06-01), None
patent: WO0161382 (2001-08-01), None
patent: WO02096627 (2002-12-01), None
patent: WO03004255 (2003-01-01), None
patent: WO2005118268 (2005-12-01), None
patent: WO2006133307 (2006-12-01), None

Affiliated with

Also associated with

Rating

Surface casting onto a polycarbonate photochromic substrate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface casting onto a polycarbonate photochromic substrate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface casting onto a polycarbonate photochromic substrate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4290881