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. 24, 2004
Filed:
Jan. 16, 2002
William M. Carra, Fort Worth, TX (US);
Russell G. Torti, Arlington, TX (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A method is provided for determining one or more reflectance properties of a surface using a portable apparatus that includes reflecting a first beam of electromagnetic energy off of a measured surface, the first beam contacting the measured surface at an angle that is near normal to the measured surface. The method also includes reflecting a second beam of electromagnetic energy off of the measured surface, the second beam contacting the measured surface at an angle that is near grazing to the measured surface. Reflected portions of the first and second beams of electromagnetic energy are then collected and at least one reflectance characteristic value associated with the measured surface is determined based on the reflected portions of the first and second beams of electromagnetic energy.