DR. CHARLES RAND BRIGGS, O.D.
Optometry at Rio Grande Blvd, Albuquerque, NM
License number
New Mexico 206
Category
Optometry
Type
Optometrist
Address
Address
7011 Rio Grande Blvd NW, Albuquerque, NM 87107
Phone
(505) 730-9170
(505) 344-2529 (Fax)
(505) 344-2529 (Fax)
Personal information
See more information about CHARLES RAND BRIGGS at radaris.comName
Address
Phone
500 Alvarado Dr NE, Albuquerque, NM 87108
Professional information
See more information about CHARLES RAND BRIGGS at trustoria.com
Interpenetrating Polymer Network Hydrophilic Hydrogels For Contact Lens
Interpenetrating Polymer Network Hydrophilic Hydrogels For Contact Lens
US Patent:
2001004, Nov 22, 2001
Filed:
Jan 8, 2001
Appl. No.:
09/757274
Inventors:
Hopin Hu - Albuquerque NM, US
Charles Briggs - Albuquerque NM, US
Tung Nguyen - Albuquerque NM, US
Hue Tran - Albuquerque NM, US
Eilene Rossberg - Albuquerque NM, US
Charles Briggs - Albuquerque NM, US
Tung Nguyen - Albuquerque NM, US
Hue Tran - Albuquerque NM, US
Eilene Rossberg - Albuquerque NM, US
International Classification:
C08L001/00, C08F008/30
US Classification:
523/106000, 525/903000, 525/178000
Abstract:
An interpenetrating polymer network (IPN) composition and a process for the manufacture of hydrogel contact lens using the invention material. The polymeric materials are formed by polymerization of: (1) an unsaturated alkyl(meth)acrylate or its derivatives such as 2-hydroxyethyl methacrylate as the principle monomer; (2) optionally vinyl containing comonomer(s) to enhance the resulting hydrogel water absorbing capability; (3) polymerizable multi-functional crosslinking agent(s); (4) an irradiation initiator and/or thermal initiator; (5) optionally other additives to impart the resulting hydrogel specific properties such as ultra-violet blocking ability and handling colors; in the presence of a soluble, hydrophilic IPN agent such as polyvinylpyrrolidone (PVP) or poly-2-ethyl-2-oxazoline (PEOX) with a specific molecular weight range. The novel hydrophilic hydrogel material in the present invention can be used to produce a spherical contact lens, a toric contact lens, a multifocal contact lens, a toric-multifocal contact lens, and other medical devices. The inventive hydrogel material shows a low degree of surface friction, a low dehydration rate, and a high degree of biodeposit resistance.
Method Of Making Toric Contact Lenses
Method Of Making Toric Contact Lenses
US Patent:
5066431, Nov 19, 1991
Filed:
Apr 20, 1990
Appl. No.:
7/511784
Inventors:
Charles R. Briggs - Albuquerque NM
Charles W. Neefe - Big Spring TX
Charles W. Neefe - Big Spring TX
International Classification:
B29D 1100
US Classification:
264 21
Abstract:
The invention relates to a method of spin casting lenses having optical surfaces which may be spherical, aspherical or toric in shape. The method provides a concave optical mold having a spherical, aspherical or toric optical surface. A convex optical mold having a spherical, aspherical or toric surface is also privided. A selected liquid lens monomer with a selected catalyst is placed in the concave lens mold. The convex optical mold is positioned in the concave mold displacing the liquid lens monomer. The optical axis of the concave and convex molds are aligned and the two molds rotated about their concurrent optical axis. The liquid monomer is allowed to polymerize forming a solid polymer lens. The finished lens is then removed from the molds.
Laminated Cosmetic Contact Lens And Method Of Making Same
Laminated Cosmetic Contact Lens And Method Of Making Same
US Patent:
5106182, Apr 21, 1992
Filed:
Sep 24, 1990
Appl. No.:
7/588464
Inventors:
Charles R. Briggs - Albuquerque NM
Charles W. Neefe - Big Spring TX
Barbara Smith - Big Spring TX
Charles W. Neefe - Big Spring TX
Barbara Smith - Big Spring TX
International Classification:
G02C 704
US Classification:
351162
Abstract:
The invention is a method of printing a replica of the natural iris on a contact lens. The printing is done using a rubber printing member having up raised rubber radial segments having a radius of substantially the same as the contact lens. The printing ink is applied to the radial printing segments and the rubber stamp is applied to the lens. Pressure is then applied to the rubber stamp forcing the edges of the radial printing segments to move outward moving an amount of printing ink ahead of the advancing edge. The lens is rotated and the process is repeated forming a geometric pattern resembling the human iris.
Contact Lenses
Contact Lenses
US Patent:
7279507, Oct 9, 2007
Filed:
Aug 2, 2004
Appl. No.:
10/937868
Inventors:
Hopin Hu - Albuquerque NM, US
Charles R. Briggs - Albuquerque NM, US
Tung Nguyen - Albuquerque NM, US
Hue Tran - Albuquerque NM, US
Filene Rossberg - Albuquerque NM, US
Charles R. Briggs - Albuquerque NM, US
Tung Nguyen - Albuquerque NM, US
Hue Tran - Albuquerque NM, US
Filene Rossberg - Albuquerque NM, US
Assignee:
CooperVision International Holding Company, LP - St. Michael
International Classification:
G02C 7/04
US Classification:
523108, 523106, 523107, 351160 H
Abstract:
An interpenetrating polymer network (IPN) composition and a process for the manufacture of hydrogel contact lens using the invention material. The polymeric materials are formed by polymerization of: (1) an unsaturated alkyl(meth)acrylate or its derivatives such as 2-hydroxyethyl methacrylate as the principle monomer; (2) optionally vinyl containing comonomer(s) to enhance the resulting hydrogel water absorbing capability; (3) polymerizable multi-functional crosslinking agent(s); (4) an irradiation initiator and/or thermal initiator; (5) optionally other additives to impart the resulting hydrogel specific properties such as ultra-violet blocking ability and handling colors; in the presence of a soluble, hydrophilic IPN agent such as polyvinylpyrrolidone (PVP) or poly-2-ethyl-2-oxazoline (PEOX) with a specific molecular weight range. The novel hydrophilic hydrogel material in the present invention can be used to produce a spherical contact lens, a toric contact lens, a multifocal contact lens, a toric-multifocal contact lens, and other medical devices. The inventive hydrogel material shows a low degree of surface friction, a low dehydration rate, and a high degree of biodeposit resistance.