Patents Assigned to Lifetouch National School Studies Inc.
  • Depth-of-field indicator for a camera
    Patent number: 6081670
    Abstract: An apparatus for controlling a camera to achieve sharp, clear pictures includes a sensor for determining the distance of the camera from a subject and a controller for calculating the camera's depth-of-field, determining whether the subject is within the depth-of-field, and generating various signals which are provided to control operation of the camera or convey pertinent information to the photographer.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: June 27, 2000
    Assignee: Lifetouch National School Studies Inc.
    Inventors: Ricky J. Madsen, Jon A. Holmes, Trygve D. Peterson