Method of molding an eye color change contact lens blank

Details Method of molding an eye color change contact lens blank Method of molding an eye color change contact lens blank

1986-06-27

1987-12-01

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

264 27, 351162, 425808, B29D 1100

Patent

active

047103272

ABSTRACT:
A cosmetic contact lens is made by molding a colored cylinder with a cone shaped cavity at one end. A transparent monomer is polymerized in this cavity. The opposite end of the cylinder is cut to form a truncated cone in its outer surface. A clear and transparent monomer is polymerized to fill in the truncated cone portion of the cylinder. A contact lens is cut from the cylinder to form a lens having a colored iris area, and clear pupil and peripheral areas.

REFERENCES:
patent: 3189914 (1965-06-01), Gusewitch et al.
patent: 3270099 (1966-08-01), Camp
patent: 3560598 (1971-02-01), Neefe
patent: 3984506 (1976-10-01), Tsuetaki
patent: 4460523 (1984-07-01), Neefe

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