Patents by Inventor Roger James Frost Wilhem

Roger James Frost Wilhem 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: 7259362
    Abstract: An electro-optic device is disclosed which has a plurality of independently-gatable portions. One example is an image intensifier having a number of segmented photocathode areas (GP). The corresponding portions of the intensifier can be energized independently via contact stripe (CS). Used in conjunction with an appropriate trigger signal generator, imaging device and beam splitter, the device may be used to capture a series of images at very high speed. An electrical device having a reflective tunnel for generating a plurality of input images is also disclosed.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: August 21, 2007
    Assignee: DRS Tactical Systems Limited
    Inventors: Mark John Riches, Roger James Frost Wilhem, Brian Arthur Cant
  • Patent number: 7109468
    Abstract: An electro-optic device is disclosed which has a plurality of independently-gatable portions. One example is an image intensifier having a number of segmented photocathode areas (GP). The corresponding portions of the intensifier can be energized independently via contact strips (CS). Used in conjunction with an appropriate trigger signal generator, imaging device and beam splitter, the device may be used to capture a series of images at very high speed. An electrical device having a reflective tunnel for generating a plurality of input images is also disclosed.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: September 19, 2006
    Assignee: DRS Tactical Systems Limited
    Inventors: Mark John Riches, Roger James Frost Wilhem, Brian Arthur Cant