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:
Jul. 26, 2005
Filed:
Apr. 26, 2001
Hans Göran Evald Martin, Delsbo, SE;
Hans Göran Evald Martin, Delsbo, SE;
Senseair AB, , SE;
Abstract
The invention relates to a gas cell (') that includes a cavity () for a chosen gas volume, a light source (), and one or more light bundle receiving units or detectors (). The cavity () is formed by and delimited by, inter alia, a first partially elliptical mirror surface () and two partially elliptical mirror surfaces, a second () and a third (), which are opposed to said first mirror surface () and which are so orientated in relation to each other that a light bundle () will be reflected by said mirror surfaces () so as to form an optical measurement path extremity, and terminate in a light-receiving unit () allocated to a chosen measurement path extremity. The light source () is disposed in one end region of said cavity () and a reflector () which functions to cause emitted light bundles to converge towards a focusing point (F) is also disposed in said one end region.