Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1996-04-10
1998-06-23
Vargot, Mathieu D.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 11, 264334, 264402, 425808, B29D 1100
Patent
active
057701199
ABSTRACT:
An automated demolding apparatus for reliably and repeatedly mechanically separating contact lens mold portions of a mold assembly without damaging the contact lens formed there between. Before demolding, the second mold portion is irradiated by a laser beam, which is absorbed thereby to cause a substantial temperature gradient between the second mold portion and the contact lens being demolded.
REFERENCES:
patent: 5080839 (1992-01-01), Kindt-Larsen
patent: 5294379 (1994-03-01), Ross et al.
patent: 5326505 (1994-07-01), Adams et al.
patent: 5417557 (1995-05-01), Ross et al.
Dagobert Henri Armand
Walker Craig William
Johnson & Johnson Vision Products Inc.
Vargot Mathieu D.
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