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. 06, 2019
Filed:
May. 26, 2017
Lockheed Martin Corporation, Bethesda, MD (US);
David R. Twede, Orlando, FL (US);
James N. O'Sullivan, Orlando, FL (US);
Lockheed Martin Corporation, Bethesda, MA (US);
Abstract
An optical assembly that includes at least one polarizing filter assembly and at least one sensor. The polarizing filter assembly is configured to receive electromagnetic radiation (EMR) emitted by a sun and transmit at least three different portions of EMR towards the at least one sensor, each portion filtered based on a different polarization orientation. A processor device is configured to receive sensor data generated by the at least one sensor in response to receipt of the at least three different portions of EMR, and determine an elevation angle of the sun with respect to a horizon from a geographic location of the optical assembly.