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:
Mar. 07, 2017
Filed:
Jul. 01, 2015
Sergey Suchalkin, Stony Brook, NY (US);
Gregory Belenky, Port Jefferson, NY (US);
Leon Shterengas, Port Jefferson, NY (US);
David Westerfeld, Central Islip, NY (US);
Sergey Suchalkin, Stony Brook, NY (US);
Gregory Belenky, Port Jefferson, NY (US);
Leon Shterengas, Port Jefferson, NY (US);
David Westerfeld, Central Islip, NY (US);
Other;
Abstract
An LED optimized for use in low-cost gas or other non-solid substance detection systems, emitting two wavelengths ('colors') of electromagnetic radiation from the same aperture is disclosed. The LED device emits a light with a wavelength centered on an absorption line of the target detection non-solid substance, and also emits a reference line with a wavelength that is not absorbed by a target non-solid substance, while both wavelengths are transmitted through the atmosphere with low loss. Since the absorption and reference wavelengths are emitted from the same exact aperture, both wavelengths can share the same optical path, reducing the size and cost of the detector while also reducing potential sources of error due to optical path variation.