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:
Nov. 14, 2000
Filed:
Jan. 07, 1994
Applicant:
Inventor:
Philippe Pradere, Grenoble, FR;
Assignee:
Thomson Tubes Electroniques, Velizy, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313371 ;
Abstract
Disclosed is an improvement in image converter tubes that convert the X-ray image given by their input screen into a visible image. Stray glimmer develops on the insulators inside these tubes and the disclosure makes it possible to eliminate this glimmer by the deposition, on the insulators, of a thin layer of a product such as diamond-like carbon having a low secondary electron emission rate. Metal oxides are also suitable for this purpose. Application to image intensifiers.