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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 11196983 B1

PDFFull Text
Date of Patent:
Dec. 07, 2021

Filed:

Nov. 05, 2019

Imaging system including light source, image sensor, and double-band pass filter

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventor:

Hisashi Watanabe, Osaka, JP;

Assignee:

PANASONIC INIELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Alison Slater

Int. Cl.
CPC ...
G01J 3/50 (2006.01); G02B 1/00 (2006.01); G02B 5/22 (2006.01); H01L 27/146 (2006.01); H04N 5/33 (2006.01); H04N 13/25 (2018.01); H04N 13/156 (2018.01); H04N 13/254 (2018.01); H04N 13/257 (2018.01); H04N 13/271 (2018.01); H04N 13/268 (2018.01); H04N 9/04 (2006.01); G06T 7/521 (2017.01); G02B 5/20 (2006.01); H01L 27/30 (2006.01); H01L 51/00 (2006.01); H04N 13/00 (2018.01);
U.S. Cl.
CPC ...
H04N 13/25 (2018.05); G02B 5/201 (2013.01); G02B 5/208 (2013.01); G06T 7/521 (2017.01); H01L 27/14649 (2013.01); H01L 27/307 (2013.01); H04N 5/332 (2013.01); H04N 9/045 (2013.01); H04N 13/156 (2018.05); H04N 13/254 (2018.05); H04N 13/257 (2018.05); H04N 13/268 (2018.05); H04N 13/271 (2018.05); H01L 51/0046 (2013.01); H01L 51/0054 (2013.01); H04N 2013/0077 (2013.01);
Abstract

An imaging system includes a light source that, in operation, emits an emitted light containing a near-infrared light in a first wavelength region, an image sensor, and a double-band pass filter that transmits a visible light in at least a part of a wavelength region out of a visible region and the near-infrared light in the first wavelength region. The image sensor includes light detection cells, a first filter that selectively transmits the near-infrared light in the first wavelength region, second to fourth filters that selectively transmit lights in second to fourth wavelength regions, respectively, which are contained in the visible light, and an infrared absorption filter. The infrared absorption filter faces the second to fourth filters and absorbs the near-infrared light in the first wavelength region.

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