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. 02, 1984
Filed:
Jun. 14, 1982
Applicant:
Inventors:
Koichi Matsumoto, Kyoto, JP;
Haruo Kotani, Kyoto, JP;
Assignee:
Horiba, Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250338 ; 250349 ;
Abstract
A pyroelectric infrared detector of the dual element type has its two elements connected in parallel but with opposite polarities. The dual elements are arranged such that the detector element outputs may be taken out from only one side of the pyroelectric material used to form the detector. The detector utilizes supplementary elements which are insensitive to infrared radiation and interconnecting members to connect the supplementary elements to the detector elements so as to enable the interconnection of the dual parallel elements with opposite polarities to external circuitry by wires connected to only a single side of the pyroelectric material.