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:
May. 09, 2023
Filed:
Sep. 13, 2018
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Ayako Matsumoto, Kanagawa, JP;
Shuntaro Ibuki, Kanagawa, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02F 1/1335 (2006.01); B32B 27/18 (2006.01); B32B 27/34 (2006.01); B32B 7/023 (2019.01); G02B 1/14 (2015.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/305 (2013.01); B32B 7/023 (2019.01); B32B 27/18 (2013.01); B32B 27/34 (2013.01); G02B 1/14 (2015.01); G02B 5/30 (2013.01); G02B 5/3033 (2013.01); G02B 6/0026 (2013.01); G02B 6/0056 (2013.01); G02F 1/1335 (2013.01); B32B 2307/418 (2013.01); B32B 2307/42 (2013.01); B32B 2457/20 (2013.01);
Abstract
Provided are an optical film including a base material, and a hard coat layer, in which a refractive index of the base material at a wavelength of 550 nm is 1.60 or more, a difference between a refractive index of the base material at a wavelength of 435 nm and a refractive index of the base material at a wavelength of 610 nm is 0.11 or more, and a peak intensity PV value of a power spectrum obtained by subjecting a reflectivity spectrum of the optical film to fast Fourier transform is 0.3 or less, a polarizing plate having the optical film and an image display device.