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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 9344691 B1

PDFFull Text
Expired
Date of Patent:
May. 17, 2016

Filed:

Jul. 24, 2012

Imaging device, object detecting apparatus, optical filter, and manufacturing method of optical filter

Applicants:

Hideaki Hirai, Kanagawa, JP;

Yasuhiro Sato, Kanagawa, JP;

Inventors:

Hideaki Hirai, Kanagawa, JP;

Yasuhiro Sato, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Frederick Bailey

Assistant Examiner:

Talha M Nawaz

Int. Cl.
CPC ...
H04N 7/12 (2006.01); H04N 11/02 (2006.01); H04N 11/04 (2006.01); H04N 9/04 (2006.01); G01N 21/958 (2006.01); G06K 9/00 (2006.01); H01L 27/146 (2006.01); G02B 5/20 (2006.01); G02B 5/30 (2006.01); B60R 1/00 (2006.01);
U.S. Cl.
CPC ...
H04N 9/045 (2013.01); B60R 1/00 (2013.01); G01N 21/958 (2013.01); G02B 5/201 (2013.01); G02B 5/3025 (2013.01); G06K 9/00791 (2013.01); G06K 9/00798 (2013.01); G06K 9/00825 (2013.01); H01L 27/14621 (2013.01); G01N 2021/9586 (2013.01); Y10T 156/10 (2015.01);
Abstract

An imaging device includes an optical filter. The optical filter has a configuration in which a polarization filter layer and a spectral filter layer are laminated in light transmission direction. Of the polarization filter layer and the spectral filter layer, the layer on the lower side in lamination direction has an uneven top face in the lamination direction. The optical filter is formed by filling the uneven top face with a predetermined filling material so as to even out the top face and then forming other layer.

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Hirai, Hideaki. (2016). Imaging device, object detecting apparatus, optical filter, and manufacturing method of optical filter (U.S. Patent No. 9344691). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9344691

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