Patents by Inventor John W. Glesener

John W. Glesener has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7462090
    Abstract: A method for detecting radiation is disclosed that includes forming a detector having a photocathode (22) with a protective layer (22c) of cesium, oxygen and fluorine; a microchannel plate (MCP) (24); and an electron receiver (26). Radiation is received at the photocathode (22). The photocathode (22) discharges electrons (34) in response to the received photons. Discharged electrons (34) are accelerated from the photocathode (22) to the input face (24a) of the microchannel plate (24). The electrons (34) are received at the input face (24a) of the microchannel plate (24). A cascade of secondary emission electrons (36) is generated in the microchannel plate (24) in response to the received electrons (34). The secondary emission electrons (36) are emitted from the output face (24b) of the microchannel plate (24). Secondary emission electrons (36) are received at the electron receiver (26). An output characteristic of the secondary emission electrons (36) is produced.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: December 9, 2008
    Assignee: Northrop Grumman Guidance and Electronics Company, Inc.
    Inventors: Joseph P. Estrera, Adriana Giordana, John W. Glesener
  • Patent number: 6624414
    Abstract: The present invention comprises an enhanced vision device having an image intensifier tube (16) with an input end (17a) and an output end (17b) with an IR phosphor (19) deposited on the input end (17a) of the image intensifier tube (16). The IR phosphor (19) produces photons in response to light of wavelengths that would be undetectable by the image intensifier tube (16).
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: September 23, 2003
    Assignee: Litton Systems, Inc.
    Inventor: John W. Glesener
  • Patent number: 6396049
    Abstract: An improved microchannel plate (24) is disclosed. The microchannel plate has an input side (24a) and an output side (24b). A coating (32) is applied to the input side (24a) to increase secondary electron production and to prevent ions from leaving the microchannel plate (24) and damaging the photocathode (22).
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: May 28, 2002
    Assignee: Northrop Grumman Corporation
    Inventors: Joseph P. Estrera, Michael J. Iosue, Adriana Giordana, John W. Glesener
  • Patent number: 6320180
    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 with an unfilmed input face and an output face receives the electrons from the photocathode and produces secondary emission electrons which are emitted from the output face. A screen receives the secondary electrons and displays a representation of the image.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: November 20, 2001
    Assignee: Litton Systems, Inc.
    Inventors: Joseph P. Estrera, John W. Glesener, Michael R. SaldaƱa
  • Patent number: 6303918
    Abstract: A method for detecting radiation comprising nine steps is disclosed. Step one, forming a detector having a photocathode (22) with a protective layer (22c) of cesium, oxygen and fluorine; a microchannel plate (MCP) (24); and an electron receiver (26). Step two, receiving radiation at the photocathode (22). Step three, photocathode (22) discharging electrons (34) in response to the received photons. Step four, accelerating discharged electrons (34) from the photocathode (22) to the input face (24a) of the microchannel plate (24). Step five, receiving the electrons (34) at the input face (24a) of the microchannel plate (24). Step six, generating a cascade of secondary emission electrons (36) in the microchannel plate (24) in response to the received electrons (34). Step seven, emitting the secondary emission electrons (36) from the output face (24b) of the microchannel plate (24). Step eight, receiving secondary emission electrons (36) at the electron receiver (26).
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: October 16, 2001
    Assignee: Litton Systems, Inc.
    Inventors: Joseph P. Estrera, Adriana Giordana, John W. Glesener
  • Patent number: 6267866
    Abstract: An electrode for electrochemical uses is made of a conductive metal mesh coated with boron-doped diamond. The electrode may be used in electrochemical reactions either as a cathode or as an anode, or can be used with an alternating current.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: July 31, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John W. Glesener, Paul M. Natishan, William E. O'Grady, Arthur A. Morrish, Brian R. Stoner, Patrick L. Hagans
  • Patent number: 5619093
    Abstract: In a system containing an electron field emitter array characterized by aying diamond powder to a substrate and affixing the powder thereto, the diamond powder being composed of particles having sharp tips which are adapted to emit electrons in a vacuum and in an electric field, which electrons impact a phosphor layer disposed on an anode spaced above the tips of the diamond powder particles.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: April 8, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John W. Glesener, Arthur A. Morrish
  • Patent number: 5381755
    Abstract: Diamond crystals and films having a well-controlled amount of dopant therein are synthesized by incorporating a dopant into a deposition species formed from a gaseous source of carbon and a gaseous source of hydrogen. Flame and/or plasma deposition may be used. Various apparatuses for carrying out the growth of the doped diamond are also disclosed.
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: January 17, 1995
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John W. Glesener, Arthur A. Merrish, Keith A. Snail