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:
Aug. 26, 2014
Filed:
Mar. 11, 2011
Gert Nützel, Brive la Gaillarde, FR;
Pascal Lavoute, Brive la Gaillarde, FR;
Christophe Fontaine, Brive la Gaillarde, FR;
Richard Jackman, Brive la Gaillarde, FR;
Gert Nützel, Brive la Gaillarde, FR;
Pascal Lavoute, Brive la Gaillarde, FR;
Christophe Fontaine, Brive la Gaillarde, FR;
Richard Jackman, Brive la Gaillarde, FR;
Photonis France SAS, , FR;
Abstract
A photo cathode for use in a vacuum tube including a cathode layer, having an entrance face capable of absorbing photons impinging on the cathode layer, and an exit face for releasing electrons upon impinging of the photons, and an electron exit layer, in facing relationship with the exit face of the cathode layer for improving the releasing of the electrons, and a carbon containing layer, positioned between the exit face of the cathode layer and the electron exit layer, for bonding the electron exit layer to the cathode layer.