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. 15, 2017
Filed:
Jul. 16, 2015
Intevac, Inc., Santa Clara, CA (US);
Kenneth Costello, Union City, CA (US);
Kevin Roderick, San Jose, CA (US);
INTEVAC, INC., Santa Clara, CA (US);
Abstract
An image intensifier and a method of fabrication are disclosed. The image intensifier contains a photocathode assembly () including a vacuum window to generate photoelectrons in response to light, a vacuum package () and an anode assembly () to receive the photoelectrons. The anode assembly is mounted to the vacuum package via a compliant, springy, support structure (). The anode additionally includes one or more insulating spacers () on the surface facing the photocathode so as to precisely index the position of the anode assembly with respect to the photocathode surface. The photocathode and vacuum window assembly is pressed into the vacuum package to generate a sealed leak tight vacuum envelope. During the photocathode assembly to vacuum package assembly pressing operation, the inner surface of the photocathode assembly contacts the insulating spacer/spacers of the anode assembly, thereby compressing the compliant support structure. This structure and assembly method result in a precisely indexed photocathode to anode assembly sealed image intensifier.