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:
May. 21, 1996
Filed:
Sep. 08, 1994
Christopher C Alexay, Walpole, NH (US);
William L Truett, Brattleboro, VT (US);
Christopher D Prozzo, Athens, VT (US);
Barry O'Dwyer, Harrisville, NH (US);
Janos Technology Inc., Townshend, VT (US);
Abstract
There is described within a portable, battery-powered multiple filter infrared spectrometer consisting of a highly efficient optical system employing an infrared source with a chopper, from which IR energy passes through compound parabolic concentrators (CPC's) and is directed by a beamsplitter to the external sample, where the beam intersects with the sample via reflection and is returned through the CPC and beamsplitter to a stationary filter assembly and discrete detector array where the energy is converted to an A.C. (alternating current) signal. This current energizes an LED bar graph display for spectral identification. This method and apparatus is used to determine IR spectra of solids, liquids on a mirror, and gases in a container with a mirror to reflect light.