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. 29, 2019
Filed:
Jan. 14, 2014
Koninklijke Philips N.v., Eindhoven, NL;
Zhi-Xing Jiang, Southbury, CT (US);
Anthony Pierry, Plantsville, CT (US);
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A gas measurement detector includes first and second sources emitting mid- and near-infrared electromagnetic radiation respectively; source optics combining mid- and near-infrared electromagnetic radiation emitted by the first and second sources into a coaxial beam directed across a flow path of a flow of breathable gas; sensor optics dividing electromagnetic radiation in the coaxial beam that has traversed the flow path into first radiation that includes mid-infrared electromagnetic radiation and second radiation that includes near-infrared electromagnetic radiation; first and second radiation sensors generating output signals conveying information related to a parameter of the mid-infrared electromagnetic radiation in the first radiation and a parameter of the near-infrared electromagnetic radiation in the second radiation, respectively; and a processor determining a level of a gaseous molecular species based on the output signals with the output signals generated by the second radiation sensor compensating optical loss through the flow path.