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. 17, 2000
Filed:
Mar. 15, 1994
Applicant:
Inventors:
Thomas Robert Schimert, Ovilla, TX (US);
Dayton D Eden, Dallas, TX (US);
Assignee:
Lockheed Martin Corporation, Bethesda, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
2503381 ; 257530 ;
Abstract
An infrared detector cell includes a plurality of uniformly spaced linear segments, which make up an optical grating. Each segment is selectively doped across its width to form a photovoltaic diode. The linear segments are ohmically connected between electrical conductors to produce a single cell detection signal. The cell comprises a diffractive resonant optical cavity. An array of cells can produce an infrared image. Cell configurations are illustrated for receiving both single dimension and linearly polarized radiation and two-dimension unpolarized radiation.