Plastic optical element, plastic optical element producing...

Details Plastic optical element, plastic optical element producing... Plastic optical element, plastic optical element producing...

2005-05-17

2005-05-17

Vargot, Mathieu D. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Nonmechanical aftertreatment

C264S492000, C425S174200, C425S445000

Reexamination Certificate

active

06893586

ABSTRACT:
A plastic optical element producing method produces a plastic optical element by an injection molding, and includes the step of cooling the optical element to a room temperature to cool an optical surface of the plastic optical element with priority over other surfaces of the plastic optical element in a state where a temperature of the plastic optical element is within a predetermined temperature range which is less than or equal to a glass transition temperature of the resin material.

REFERENCES:
patent: 5603871 (1997-02-01), Koseko et al.
patent: 6015514 (2000-01-01), Koseko
patent: 6287504 (2001-09-01), Kanematsu et al.
patent: 8-201717 (1996-08-01), None
patent: 9-49976 (1997-02-01), None
patent: 10-288749 (1998-10-01), None
patent: 11-77842 (1999-03-01), None

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