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:
Oct. 30, 2018
Filed:
Dec. 07, 2017
Korea National University of Transportation Industry-academic Cooperation Foundation, Chungju-si, Chungcheongbuk-do, KR;
Humas. Co.ltd, Daejeon, KR;
SeungHwan Yi, Chungju-si, KR;
Keun Heon Lee, Daejeon, KR;
Hyeong-Gee Yeo, Bucheon-si, KR;
Jin Ho Kim, Incheon, KR;
KOREA NATIONAL UNIVERSITY OF TRANSPORTATION;
Industry-Academic Cooperation Foundation, Chungju-si, KR;
HUMAS. CO.LTD, Daejeon, KR;
Abstract
Provided is a white-cell type non-dispersive infrared gas sensor and more particularly, a non-dispersive infrared carbon dioxide gas sensor deposited with a hydrophobic thin film. To this end, in a carbon dioxide gas sensor for measuring a concentration of carbon dioxide included in gas, the gas sensor is a white-cell type, in the white-cell, first and second reflectorsandare disposed to face a third reflector, a light sourceis provided at one side of the third reflectorand a first detectorand a second detectorare provided at the other side. Further, a first hydrophobic thin filmmay be deposited on the entire reflection surface of the first reflector, a second hydrophobic thin filmmay be deposited on the entire reflection surface of the second reflector, and a third hydrophobic thin filmmay be deposited on the entire reflection surface of the third reflector