Patents by Inventor Geoffrey H. Hunt

Geoffrey H. Hunt 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).

  • Optical screens
    Patent number: 4231068
    Abstract: A cathode ray tube has an optical screen formed of a series of strips aligned with the writing direction of the cathode ray tube raster. The strips each comprise a layer of electro-optical material, and are electrically interconnected with the cathode ray tube circuitry so that each strip is transparent when the raster is writing on a cathode ray tube display face behind it. The electro-optical material is preferably a liquid crystal material.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: October 28, 1980
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventor: Geoffrey H. Hunt
  • Night vision system comprising a light source and image intensifier powered in alteration
    Patent number: 4209691
    Abstract: A night vision system for use in an environment having at least one observer using artificial light means (lamp lit instruments, torch, etc.) and at least one observer using a light intensifying direct vision device has a power supply which supplies pulses of power to the artificial light device and which switches off the light intensifying direct vision device in synchronism with the pulses.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: June 24, 1980
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventor: Geoffrey H. Hunt