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:
Mar. 30, 1982
Filed:
Apr. 04, 1980
Applicant:
Inventor:
Peter-Wilhelm Steinhage, Wiesbaden, DE;
Assignee:
Heimann GmbH, Wiesbaden, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250333 ; 250330 ;
Abstract
A camera tube for thermal imaging is disclosed comprising an entrance window of an electrically conductive material, a target for converting the thermal image, and an electron beam system for scanning the target. Incident thermal radiation is modulated by means of a mechanical chopper functioning as a modulator directly in front of the entrance window. The entrance window is electrically isolated from the target and is preferably grounded. By so doing, the target is shielded against electrical influences due to the modulator.