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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 10656020 B1

PDFFull Text
Date of Patent:
May. 19, 2020

Filed:

Sep. 27, 2016

Light detection device

Applicant:

Hamamatsu Photonics K.k., Hamamatsu-shi, Shizuoka, JP;

Inventors:

Masaki Hirose, Hamamatsu, JP;

Katsumi Shibayama, Hamamatsu, JP;

Takashi Kasahara, Hamamatsu, JP;

Toshimitsu Kawai, Hamamatsu, JP;

Hiroki Oyama, Hamamatsu, JP;

Yumi Teramachi, Hamamatsu, JP;

Assignee:

HAMAMATSU PHOTONICS K.K., Hamamatsu-shi, Shizuoka, JP;

Attorney:

Faegre Drinker Biddle & Reath LLP

Primary Examiner:

Cuong Q Nguyen

Int. Cl.
CPC ...
H01L 31/02 (2006.01); G01J 5/08 (2006.01); G02B 26/00 (2006.01); G01J 3/26 (2006.01); G01J 3/02 (2006.01); G01J 5/20 (2006.01); G02F 1/21 (2006.01); H01L 31/0203 (2014.01); H01L 31/0232 (2014.01); H01L 31/0304 (2006.01); G01J 5/04 (2006.01); H01L 37/02 (2006.01);
U.S. Cl.
CPC ...
G01J 5/0862 (2013.01); G01J 3/0213 (2013.01); G01J 3/0256 (2013.01); G01J 3/0291 (2013.01); G01J 3/26 (2013.01); G01J 5/20 (2013.01); G02B 26/00 (2013.01); G02F 1/21 (2013.01); H01L 31/0203 (2013.01); H01L 31/02005 (2013.01); H01L 31/02327 (2013.01); H01L 31/03046 (2013.01); G01J 5/045 (2013.01); G02F 2001/213 (2013.01); H01L 37/02 (2013.01);
Abstract

A light detection device includes: a Fabry-Perot interference filter provided with a light transmission region; a light detector configured to detect light transmitted through the light transmission region; a package having an opening and accommodating the Fabry-Perot interference filter and the light detector; and a light transmitting unit arranged on an inner surface of the package so as to close an opening, the light transmitting unit including a band pass filter configured to transmit light incident on the light transmission region. When viewed from a direction parallel to the line, an outer edge of the Fabry-Perot interference filter is positioned outside an outer edge of the opening, and an outer edge of the light transmitting unit is positioned outside the outer edge of the Fabry-Perot interference filter.

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