Method and apparatus for manufacturing lenses and a lens manufac

Details Method and apparatus for manufacturing lenses and a lens manufac Method and apparatus for manufacturing lenses and a lens manufac

1999-02-16

2000-12-26

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

264 132, 264511, 264571, 425117, 425388, 425808, B29D 1100

Patent

active

061653926

ABSTRACT:
A method of manufacturing a lens having a lens body integral with a functional sheet on one side thereof, includes an insert molding process including the steps of: placing the functional sheet as an insert in position in a mold defining a suction hole therein; and while attracting the functional sheet against a molding surface of the mold by a peripheral portion thereof by suction through the suction hole, supplying to the mold a molten plastic material for forming the lens body, to form the lens.

REFERENCES:
patent: 4950445 (1990-08-01), Salce et al.
patent: 4985186 (1991-01-01), Nose et al.
patent: 5494615 (1996-02-01), Wang Lee
patent: 5620635 (1997-04-01), DeRozier et al.
patent: 5800744 (1998-09-01), Munakata

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