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:
Aug. 25, 1981
Filed:
Sep. 10, 1979
Applicant:
Inventors:
Robert D Rosenthal, Gaithersburg, MD (US);
Scott B Rosenthal, Gaithersburg, MD (US);
Assignee:
Trebor Industries, Inc., Gaithersburg, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G01N / ; G01J / ;
U.S. Cl.
CPC ...
364498 ; 364497 ; 250338 ; 356416 ;
Abstract
An apparatus for near infrared quantitative analysis with an infrared emitting diode (IRED) source utilizes narrow bandpass filters and silicon detectors to provide highly accurate and inexpensive measurement. A narrow bandpass filter in the light path of the IRED passes wavelengths outside the half power bandwidth points of the IRED. A silicon detector together with a sensitive amplifier is used to accurately measure linearly up to six decades of light sensitivity at desired wavelengths.