Patent Number: 6,297,494

Title: Method and system for enhanced vision employing an improved image intensifier with a gated power supply and reduced halo

Abstract: The present invention comprises a method for detecting photons and generating a representation of an image. A photocathode receives photons from an image. A power supply to the photocathode is gated such that the photocathode is switched between an on state and an off state. The photocathode discharges electrons in response to the received photons while the photocathode is in the on state. A microchannel plate is located no more than about 125 microns from the photocathode. The microchannel plate has an unfilmed input face and an output face that receives the electrons from the photocathode. The microchannel plate produces secondary emission electrons which are emitted from the output face. A screen receives the secondary electrons and displays a representation of the image.

Inventors: Estrera; Joseph P. (Dallas, TX), Iosue; Michael J. (Phoenix, AZ), Saldana; Michael R. (New Braunfels, TX)

Assignee: Litton Systems, Inc.

International Classification: H01J 31/50 (20060101); H01J 31/08 (20060101); H01J 040/14 ()

Expiration Date: 10/02/2018