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.:
Date of Patent:
Dec. 29, 2020
Filed:
Mar. 29, 2018
Applicant:
Lg Innotek Co., Ltd., Seoul, KR;
Inventors:
Jae Hyun Kim, Seoul, KR;
Ji Hoon Kim, Seoul, KR;
Assignee:
LG INNOTEK CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 15/02 (2006.01); G01N 1/24 (2006.01);
U.S. Cl.
CPC ...
G01N 15/0211 (2013.01); G01N 1/24 (2013.01); G01N 2001/245 (2013.01);
Abstract
A particle sensing device according to one embodiment comprises: a light-emitting unit for emitting light; a first flow path unit arranged under the light-emitting unit so as to be vertical to an optical shaft of the light-emitting unit, and through which air including particles flows; a light-receiving unit arranged at the optical shaft under the first flow path unit, and on which light that has passed through the first flow path is incident; and a light-absorbing unit arranged at the optical shaft under the light-receiving unit and absorbing light that has passed through the light-receiving unit.