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. 07, 1992
Filed:
Aug. 09, 1990
Applicant:
Inventor:
Philippe E Gravisse, F-75015 Paris, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359359 ; 359350 ; 359326 ; 359885 ;
Abstract
Process for disturbing the transmission of electromagnetic radiation emitted by a source within a predetermined wavelength band, for reception by a receiver designed to detect signals situated in said band, characterized by a screen (3) placed between said source (1) and said receiver (4), which absorbs at least part of the radiation emitted on said wavelength band and re-emits it on wavelengths outside said band. Furthermore, a screen for implementing this process.