Patents by Inventor Arthur N. Woodbury

Arthur N. Woodbury 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).

  • Photographic system for varying flash fire aperture as a function of ambient scene light
    Patent number: 4329031
    Abstract: In a photographic exposure control system of the type which provides a flash fire signal at an appropriate follow focus aperture value corresponding to the camera-to-subject distance range, the ambient scene light intensity is measured prior to exposure and thereafter utilized to progressively vary the follow focus aperture value within determinate limits in inverse corresponding relation to the progressive variation of the detected ambient scene light intensity prior to exposure.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: May 11, 1982
    Assignee: Polaroid Corporation
    Inventors: Peter P. Carcia, George D. Whiteside, Arthur N. Woodbury
  • Photographic exposure control with scene light integration level determined as function of pre-exposure ambient scene light detect
    Patent number: 4306786
    Abstract: A photographic exposure control system provides for the termination of an exposure interval as a predetermined function of the scene light detected during the exposure interval wherein at least one parameter of the predetermined function is varied as another function of the ambient scene light detected prior to the exposure interval. The predetermined function may comprise the integration of the detected scene light to a selected level wherein the selected level of integration is the one parameter varied as a function of the ambient scene light detected prior to the exposure interval.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: December 22, 1981
    Assignee: Polaroid Corporation
    Inventors: Peter P. Carcia, Arthur N. Woodbury