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:
Jul. 22, 1980
Filed:
Feb. 21, 1979
Applicant:
Inventor:
Charles K Asawa, Pacific Palisades, CA (US);
Assignee:
Hughes Aircraft Company, Culver City, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250338 ; 250340 ; 250353 ;
Abstract
The specification describes a novel pyroelectric detector in which one input detector electrode is mounted directly on one surface of a pyroelectric substrate and is used for absorbing chopped incoming infrared radiation. The output detector electrodes are capacitively coupled to the reverse substrate surface and provide an AC coupled output signal with a minimum of conductive heat transfer from the pyroelectric substrate.