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:
Oct. 14, 2014
Filed:
Feb. 21, 2013
Applicant:
Exelis, Inc., McLean, VA;
Inventors:
Thomas Douglas Burton, Christiansburg, VA (US);
James Hoge Bowen, Salem, VA (US);
Kevin Patrick Hines, Daleville, VA (US);
Assignee:
Exelis, Inc., McLean, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/225 (2006.01); H04N 5/228 (2006.01); H04N 5/235 (2006.01); G02B 23/00 (2006.01); G02B 27/14 (2006.01); G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
H04N 5/235 (2013.01);
Abstract
A brightness tracking system for an optical device includes a first imager for viewing a target of interest, a second imager for viewing the same target of interest, and a photodiode circuit. The photodiode circuit (a) measures brightness levels of the target of interest received from the first imager, and (b) controls output brightness of the second imager, based on the measured brightness levels received from the first imager.