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:
Dec. 26, 2017
Filed:
Jan. 27, 2014
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
NITTO DENKO CORPORATION, Ibaraki-shi, JP;
Abstract
There is provided an anti-reflection film that has an excellent reflection characteristic (low reflectivity) in a wide spectrum and has an excellent reflection hue that is close to neutral, and a method by which such anti-reflection film can be produced with high productivity and at a low cost. An anti-reflection film according to the present invention includes: a substrate; and a medium-refractive index layer, a high-refractive index layer, and a low-refractive index layer in the stated order from a substrate side. A refractive index nof the substrate, a refractive index nof the medium-refractive index layer, and a refractive index nof the high-refractive index layer satisfy the following expression (1): where the refractive index nof the substrate, the refractive index nof the medium-refractive index layer, and the refractive index nof the high-refractive index layer have a relationship of n>n>n.