Lens dyeing method and lens dyeing apparatus

Details Lens dyeing method and lens dyeing apparatus Lens dyeing method and lens dyeing apparatus

2011-08-23

2011-08-23

Pyon, Harold Y (Department: 1761)

Bleaching and dyeing; fluid treatment and chemical modification

Nontextile, dyeing process or product, including inorganic...

Contact lens

C008S444000, C008S115000, C118S641000

Reexamination Certificate

active

08002852

ABSTRACT:
A method of dyeing a lens, comprises the steps of: (a) applying a dyeing ink containing a sublimable dye onto a base material to produce a dyeing base body; (b) placing the dyeing base body and the lens so that a dye-applied surface of the dyeing base body and a surface of the lens to be dyed face each other in noncontact relation, and heating the dyeing base body under substantially a vacuum condition to sublimate and deposit the applied dye on the lens; and (c) heating the dye deposited surface of the lens by irradiation of infrared rays from one direction to fix the deposited dye on the lens.

REFERENCES:
patent: 5560751 (1996-10-01), Hoshiyama
patent: 6520999 (2003-02-01), Kamata et al.
patent: 0 610 141 (1994-02-01), None
patent: 0 982 432 (2000-03-01), None
patent: 2253919 (1992-09-01), None
patent: A-2001-59950 (2001-03-01), None

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