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:
Nov. 24, 2015
Filed:
Mar. 24, 2014
Exelis, Inc., McLean, VA (US);
Marek W. Kowarz, Henrietta, NY (US);
Jeffrey Daniel Newman, Pittsford, NY (US);
Exelis, Inc., Herndon, VA (US);
Abstract
A terahertz (THz) imaging device includes a tunable filter and a focal plane array (FPA) for receiving selected optical wavelengths of light. The tunable filter includes: (a) a first mirror comprised of a thick silicon substrate and a thin silicon membrane, in which the thin silicon membrane is separated from the thick silicon substrate by a gridded cell structure, (b) a second mirror comprised of a thick silicon substrate and a thin silicon membrane, in which the thin silicon membrane is separated from the thick silicon substrate by another gridded cell structure, and (c) a variable gap disposed between the first and second mirrors. The gridded cell structure may have a hexagonal shape, a square shape, a rectangular shape, a triangular shape or a rhombus-like shape.