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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.:

US 9810821 B1

PDFFull Text
Expired
Date of Patent:
Nov. 07, 2017

Filed:

Jun. 10, 2015

Infrared ray cutoff filter

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Toshihide Ezoe, Shizuoka, JP;

Kazuto Shimada, Shizuoka, JP;

Shinichiro Sonoda, Kanagawa, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Arnel C Lavarias

Int. Cl.
CPC ...
F21V 9/04 (2006.01); G02B 5/20 (2006.01); B32B 7/02 (2006.01); C08L 101/12 (2006.01); G02B 5/22 (2006.01); G02B 5/28 (2006.01); C09D 5/33 (2006.01); C09D 183/04 (2006.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/28 (2006.01); C08K 3/22 (2006.01); C08K 5/16 (2006.01); C08K 5/3417 (2006.01); G02B 1/04 (2006.01); H04N 9/04 (2006.01); C08K 5/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/208 (2013.01); B32B 7/02 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/283 (2013.01); C08K 3/22 (2013.01); C08K 5/16 (2013.01); C08K 5/3417 (2013.01); C08L 101/12 (2013.01); C09D 5/004 (2013.01); C09D 183/04 (2013.01); G02B 1/04 (2013.01); G02B 5/223 (2013.01); G02B 5/282 (2013.01); H04N 9/045 (2013.01); B32B 2264/102 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/418 (2013.01); B32B 2457/00 (2013.01); C08K 5/0041 (2013.01); C08K 2003/2241 (2013.01);
Abstract

An infrared ray cutoff filter including two or more high refractive index layers with a refractive index ranging from 1.65 to 2.00 and two or more low refractive index layers with a refractive index ranging from 1.20 to 1.45. At least one layer of the two or more high refractive index layers and the two or more low refractive index layers contains a dye having a maximum absorption wavelength in a range of 600 nm to 820 nm, and the two or more low refractive index layers are a plurality of kinds of layers which have different film thickness within a range of 50 nm to 250 nm.

Find Patent Forward Citations

Ezoe, Toshihide. (2017). Infrared ray cutoff filter (U.S. Patent No. 9810821). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9810821

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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