Title:
【発明の名称】眼鏡用偏光膜および偏光眼鏡
Document Type and Number:
Japanese Patent JP3357803
Kind Code:
B2
Abstract:
A polarizing film or composite which can eliminate glare of the light reflected by an object and passing therethrough while maintaining the original color of the object. The polarizing film is color-adjusted so that the color coordinates L, a and b in the UCS color space, where L is the color brightness divided into 0 to 100 sections and in terms of tristimulus values X, Y and Z in the standard colorimetric system CIE, L=100Y+E,fra 1/2+EE , a=175 (1.02X-Y) Y+E,fra 1/2+EE , b=70 (Y-0.847Z) y+E,fra 1/2+EE , will be 22=L=70, -2.0=a=2.0, -2.0=b=2.0, that the light transmittance in the wavelength range of 410-710 nm will be within +30% of its average, and that the light transmittance in the wavelength range of 410-750 nm will be not more than 2% when two of said polarizing films are put one upon the other so that their polarizing axes extend perpendicularly to each other. The polarizing composite includes a pair of light-transmissive sheets or lenses and a polarizing film sandwiched between the sheets or lenses. The film and the sheets or lenses contain colorants so that the light transmittance satisfies the above conditions.
Inventors:
Koichi Tamura
Shoichi Mitsuuchi
Shoichi Mitsuuchi
Application Number:
JP28820796A
Publication Date:
December 16, 2002
Filing Date:
October 30, 1996
Export Citation:
Assignee:
Tarex Optical Industry Co., Ltd.
International Classes:
B29D11/00; G02B1/10; G02B1/11; G02B5/30; G02F1/1335; G02C7/12; (IPC1-7): G02B5/30; B29D11/00; G02B1/11; G02C7/12; G02F1/1335
Domestic Patent References:
JP6337312A | ||||
JP62159102A | ||||
JP8254669A | ||||
JP6270802A |
Attorney, Agent or Firm:
Bunji Kamata (2 outside)