Patents by Inventor Thomas St. John

Thomas St. John 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: 7031579
    Abstract: An optical system provides a higher resolution image, especially for use with a projection system, using a combiner formed of fiber optics each having an input end and an output end, with the fiber optics grouped together so that the combiner has one or more image input ends each configured to receive an image from an associated image source. The input images are combined to yield an output image at the other end of the combiner that is smaller in area than the sum of the input image areas, increasing resolution. According to an embodiment, the output image is also counter-distorted to compensate for the distortion of the image caused by the relay optics used in projection.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: April 18, 2006
    Assignee: L-3 Communications Corporation
    Inventors: Ashok Sisodia, Thomas St. John
  • Publication number: 20050140573
    Abstract: A visor display apparatus for is supported on the head of a user, preferably on a helmet on the user's head. The apparatus comprises a support structure supported on the head of a user and supporting a viewing portion facing one of the eyes of the user. The apparatus also includes a housing supporting therein an image display system. The image display system has three LEDs generating light, being red, green and blue. Plastic optical fibers are bonded to the LEDs and receive light from the LEDs, combining the three colors of light in a single output. A reflective display receives image data and forms an image therefrom. The output of the optical fibers transmits the light to the reflective display so that the light received from the LED is reflected by the reflective display to project the image. The apparatus further has optics receiving the projected image from the reflective display and transmitting said image to the viewing portion so as to be viewed by the user.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 30, 2005
    Inventors: Andrew Riser, J. Rodgers, Ashok Sisodia, Thomas St. John
  • Publication number: 20040001679
    Abstract: An optical system provides a higher resolution image, especially for use with a projection system, using a combiner formed of fiber optics each having an input end and an output end, with the fiber optics grouped together so that the combiner has one or more image input ends each configured to receive an image from an associated image source. The input images are combined to yield an output image at the other end of the combiner that is smaller in area than the sum of the input image areas, increasing resolution. According to an embodiment, the output image is also counter-distorted to compensate for the distortion of the image caused by the relay optics used in projection.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 1, 2004
    Inventors: Ashok Sisodia, Thomas St. John