Patents Assigned to James C. Cook
  • Control loop for motorized shutter operation
    Patent number: 5272426
    Abstract: A light system is disclosed for controlling the amount of light supplied from a high density light source to a target. A shutter is positioned between the light source and the target, and a motor is coupled to said shutter to control the position of said shutter. Either manual or automatic control of said shutter is provided by electronic means coupled to said motor.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: December 21, 1993
    Assignee: James C. Cook
    Inventor: James C. Cook, II