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.:

US 7687775 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 30, 2010

Filed:

Dec. 20, 2007
Applicants:

Jason Charles Lashley, Sante Fe, NM (US);

Cyril P. Opeil, Chestnut Hill, MA (US);

James Lawrence Smith, Los Alamos, NM (US);

Inventors:

Jason Charles Lashley, Sante Fe, NM (US);

Cyril P. Opeil, Chestnut Hill, MA (US);

James Lawrence Smith, Los Alamos, NM (US);

Assignee:

Los Alamos National Security, LLC, Los Alamos, NM (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 5/10 (2006.01); G01J 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus and method are provided for sensing infrared radiation. The apparatus includes a sensor element that is positioned in a magnetic field during operation to ensure a λ shaped relationship between specific heat and temperature adjacent the Curie temperature of the ferroelectric material comprising the sensor element. The apparatus is operated by inducing a magnetic field on the ferroelectric material to reduce surface charge on the element during its operation.


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