SCOTT OLEN REID
Broker in Irvine, CA
License number
Pennsylvania RM423205
Category
Real Estate Commission
Type
Broker Multi-Licensee-Standard
Address
Address
2
Irvine, CA 92618
Pennsylvania
Pennsylvania
Professional information
Method For Curing Plastic Lenses
US Patent:
4919850, Apr 24, 1990
Filed:
May 6, 1988
Appl. No.:
7/190856
Inventors:
Ronald D. Blum - Roanoke VA
Scott Reid - Irvine CA
Howard P. Silverman - Monrovia CA
Scott Reid - Irvine CA
Howard P. Silverman - Monrovia CA
International Classification:
B29D 1100
US Classification:
264 14
Abstract:
The disclosure relates to a method and apparatus for making lenses and a composition of molding material which can be utilized in the method and apparatus for molding lenses of optical quality. A monomer is used with initiators in conjunction with the molding apparatus to mold plastic lenses of optical quality without requirement for any additional polishing or grinding, except for perhaps shaping the edges. The molding material includes a composition of liquid monomer with a thermal initiator and a UV initiator each of which can be activated during the molding process. Initially, the molding forms with the liquid monomer compositions therein are heated to activate the thermal initiator and form the molding material into a gel. The gelled material is then subjected to a UV light source for completing the cure. Prepolymerized molding material can be used in some instances to avoid an intermediate step of thermal curing.