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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 10692903 B1

PDFFull Text
Date of Patent:
Jun. 23, 2020

Filed:

Dec. 10, 2018

Color filter for image sensor, image sensor, and method of manufacturing color filter for image sensor

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Ryoji Goto, Kanagawa, JP;

Kazuto Shimada, Kanagawa, JP;

Shigeaki Nimura, Kanagawa, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Igwe U Anya

Int. Cl.
CPC ...
H01L 27/146 (2006.01); G02B 1/11 (2015.01); G02B 5/22 (2006.01); G02B 5/26 (2006.01); G02B 5/30 (2006.01); G02B 5/20 (2006.01); G02B 3/00 (2006.01); H04N 9/04 (2006.01); H04N 5/33 (2006.01);
U.S. Cl.
CPC ...
H01L 27/1461 (2013.01); G02B 1/11 (2013.01); G02B 3/00 (2013.01); G02B 5/20 (2013.01); G02B 5/208 (2013.01); G02B 5/22 (2013.01); G02B 5/26 (2013.01); G02B 5/30 (2013.01); H01L 27/146 (2013.01); H01L 27/1462 (2013.01); H01L 27/14621 (2013.01); H01L 27/14629 (2013.01); H01L 27/14645 (2013.01); H01L 27/14685 (2013.01); H04N 5/33 (2013.01); H04N 9/04511 (2018.08); H01L 27/14627 (2013.01);
Abstract

Provided are: a color filter for an image sensor in which an infrared filter having no particulate defects or the like can be laminated adjacent to an image pickup element and in which the total thickness of an image sensor can be significantly reduced; an image sensor including the color filter for an image sensor; and a method of manufacturing the color filter for an image sensor. The color filter for an image sensor includes: two or more absorbing color filters that absorb light components having different wavelength ranges; and a cholesteric reflecting layer in which a right circularly polarized light cholesteric layer having right circularly polarized light reflecting properties and a left circularly polarized light cholesteric layer having left circularly polarized light reflecting properties are laminated.

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