Method of manufacturing a contact lens

Details Method of manufacturing a contact lens Method of manufacturing a contact lens

1992-09-11

1995-07-18

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

264 18, 264 27, B29D 1100

Patent

active

054338980

ABSTRACT:
Methods of manufacturing a contact lens form a mold which has a first section formed from a first material and a second section formed from a second material. The methods permit the facile preparation of contact lenses having two or more differing materials, for example, a composite lens, a bifocal lens, a trifocal lens and the like.

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patent: 5246634 (1993-09-01), Ichikawa et al.
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