The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2005
Filed:
Apr. 09, 2002
Hirohisa Hokazono, Kanagawa, JP;
Kazuhiro Nakamura, Kanagawa, JP;
Hirohisa Hokazono, Kanagawa, JP;
Kazuhiro Nakamura, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Minami-Ashigara, JP;
Abstract
An antireflection film having a low reflectance and giving non-tinged reflected light with a low cost, which comprises: a transparent substrate; and a low-refractive layer having a lower refractive index than said transparent substrate, wherein the antireflection film has an average specular reflectance of 0.5% or less at an incidence angle of 5° in a wavelength region of from 450 to 650 nm, and, when CIE standard illuminant Din a wavelength region of from 380 to 780 nm is incident on the antireflection film at an incidence angle of 5°, the regular reflection light has a color having a* and b* values in a ranges specified by −7≦a*≦7 and −10*≦b*≦10 in the CIE 1976 L*a*b* color space.