Patents by Inventor Allan Victor Stewart Gould

Allan Victor Stewart Gould 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).

  • Suppression of color fringing in lamps
    Patent number: 4100594
    Abstract: In a beam-projecting lamp such as a vehicle headlamp or theatre spotlight which has a mask to delimit the edge of the beam, color fringing due to the mask is reduced by the use of a mask having separate front and rear edges or by splitting the projection lens into upper and lower halves, the arrangement in each case producing both a virtual erect mask image from one half of the projection lens and a real inverted mask image from the other half.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: July 11, 1978
    Assignee: Thorn Electrical Industries Limited
    Inventor: Allan Victor Stewart Gould