Patents by Inventor Willy J. P. Bols

Willy J. P. Bols 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).

  • Brightness intensifier tube with alignment marker
    Patent number: 5212590
    Abstract: In a brightness intensifier tube there is provided, preferably in the exit screen or, in the case of a brightness intensifier comprising a channel plate intensifier, on an input electrode thereof, a fixed alignment marker, for example by local burning in of screen material by photoelectrons from the entrance screen which are liberated therefrom by irradiation by a laser beam. For tubes comprising a fixed entrance optical system the alignment marker is preferably provided by focused application of light via the optical system.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: May 18, 1993
    Assignee: U.S. Philips Corp.
    Inventor: Willy J. P. Bols