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:
Feb. 08, 2011
Filed:
Feb. 20, 2009
Applicant:
Arne Tröllsch, Lübeck, DE;
Inventor:
Arne Tröllsch, Lübeck, DE;
Assignee:
Dräger Safety AG & Co. KGaA, Lübeck, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/59 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gas-measuring arrangement () with an open optical measuring section () is formed by a measuring device () with an array of lenses (), a phase mask (), an optical path mirror () positioned obliquely, and a reflecting mirror () located outside the measuring device () at the end of the open measuring section (). The light is decoupled to a detector () via a phase mask () and the optical path mirror (). The phase mask () diverges a light intensity spot and the light intensity ring is decoupled by an obliquely positioned optical path mirror () towards a detector ().