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:
Feb. 17, 1987
Filed:
Oct. 04, 1985
Applicant:
Inventors:
Assignee:
Dragerwerk AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ; H01C / ;
U.S. Cl.
CPC ...
219543 ; 219553 ; 338308 ; 2504931 ;
Abstract
A radiation source for infrared radiation includes an area radiator and a resistance layer which are arranged on a support substrate. The heat capacity of the radiation source is to be reduced to the extent that a modulation of the intensity of the radiation source with sufficiently high frequencies is made possible. To this end it is provided that the resistance layer is disposed in a thinned region of the support substrate.