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Title:
COLORING METHOD FOR PLASTIC OPTICAL MEMBER AND PLASTIC OPTICAL MEMBER COLORED BY THE METHOD
Document Type and Number:
Japanese Patent JP2012123236
Kind Code:
A
Abstract:

To color a plastic optical member in a desired color with high optical permeability and without causing unevenness in color and to overcome problems related to coloring processing such as wastewater disposal and energy loss.

In a coloring method for coloring a plastic optical member through irradiation with ionizing radiations such as gamma rays and electron beams, a dose of the radiation employed for irradiating the plastic optical member is selected from radiation doses precedently determined in accordance with colors to be obtained, and a color of the plastic optical member attained a prescribed period of time after the irradiation is employed as a color to be obtained.


Inventors:
KATO SUMIO
KIDA FUMIO
YOSHII FUMIO
NAKAJIMA JUNSAKU
NAGASAWA NAOTANE
Application Number:
JP2010274479A
Publication Date:
June 28, 2012
Filing Date:
December 09, 2010
Export Citation:
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Assignee:
SUN LUX OPTICAL CO LTD
JAPAN ATOMIC ENERGY AGENCY
International Classes:
G02C7/10; C08J7/00; D06P5/00; G02C7/00; G02C7/02
Domestic Patent References:
JPS57158239A1982-09-30
JP2002037907A2002-02-06
JP2007532707A2007-11-15
JPS57158239A1982-09-30
JP2002037907A2002-02-06
Foreign References:
WO2009081385A22009-07-02
Attorney, Agent or Firm:
Yukihiko Takada