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:
Jan. 27, 1976
Filed:
Mar. 04, 1974
Robert P Hunt, Menlo Park, CA (US);
Spectrotherm Corporation, Santa Clara, CA (US);
Abstract
An infrared imaging system (thermograph) that electronically forms an optical display of an object as viewed in the infrared portion of the spectrum wherein a given brightness level of the optical image may be set to correspond to a particular object temperature. A reference object (target) within the thermograph is periodically imaged simultaneously with the electronic video circuits being reset to a reference voltage proportional to the absolute temperature of the target. Temperature variations of the target during a period use of the thermograph thus does not affect the brightness level of the optical images, and the optical image brightness becomes a measure of the absolute temperature of the optical image.