Patents by Inventor David Thomas Collier

David Thomas Collier 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: 4019804
    Abstract: In an optical scanning system having a rotary scanner with multiple reflectors, which scanner images a light-responsive detector and moves that image repeatedly across the flat image field of an objective to generate a scanning raster, an optical corrector is mounted in the beam imaging the detector to correct for the fact that the detector image moves in a curved path. The optical corrector has a stepped surface such as to adjust the detector image incrementally during a scan, in the direction normal to the plane of the image field of the objective, so as to make the detector image motion substantially parallel to said image field.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: April 26, 1977
    Assignee: Hawker Siddeley Dynamics Limited
    Inventor: David Thomas Collier
  • Patent number: 3935448
    Abstract: An optical scanning system has a dirigible head of generally spherical shape mounted on a support body for scanning through a substantially hemispherical field of view, and optical lenses, a scanner rotor and drive motor therefor, and a cryogenically-cooled detector element array are all mounted within the confines of the dirigible head. The head has a primary objective lens in its outer shell and further lenses are mounted within the head in an adjustable holder enabling different lenses to be brought into alignment with the objective lens. The scanner rotor is generally annular and rotates about an axis oblique to the optical axis of the objective lens; it comprises a multi-faceted reflector receiving the image beam from the lens system and reflecting it laterally on to the detector array.
    Type: Grant
    Filed: August 6, 1974
    Date of Patent: January 27, 1976
    Assignee: Hawker Siddeley Dynamics Limited
    Inventor: David Thomas Collier