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:
Sep. 21, 1993
Filed:
Jul. 22, 1991
Applicant:
Inventor:
Dennis H Goldstein, Niceville, FL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2503381 ; 356368 ; 356367 ;
Abstract
An infrared laser polarimeter system for measuring the Mueller matrix of a sample is described which comprises, a infrared laser source for projecting a beam of preselected wavelength (preferably 3-14 .mu.m) along an optical axis, at least one polarizing element disposed along the axis for linearly polarizing the beam and producing an output beam for analysis, first and second rotatable optical retarders disposed between the source and polarizing element and defining a sample region therebetween, the second retarder being rotated at least five times that for the first retarder, an integrating sphere, and a detector for analyzing the output beam.