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:
Nov. 24, 1992
Filed:
Nov. 28, 1990
Applicant:
Inventors:
Philip A McGee, Beltsville, MD (US);
Kenneth P VonBargen, Berwyn Heights, MD (US);
Assignee:
NIR Systems Incorporated, Silver Spring, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
356446 ; 25022729 ;
Abstract
In an optical instrument for infrared spectral analysis of powder, an improved fiber optic probe is provided. Fiber optics carry light to and from the probe and the fiber optics terminate in the probe in a fiber optic endface. A sapphire rod is positioned to abut the fiber optic endface. The sapphire rod has a distal endface arranged at slightly less than one-half the maximum acceptance angle of the optic fibers in the probe.