×

TELEVISION SYSTEM FOR ENHANCING AND TRACKING AN OBJECT

  • US 3,840,699 A
  • Filed: 05/25/1972
  • Issued: 10/08/1974
  • Est. Priority Date: 05/25/1972
  • Status: Expired due to Term
First Claim
Patent Images

1. A tracking television system for enhancing the image of an object having unique spectral reflection characteristics, comprising a. a first television camera adapted to scan a scene, b. a second television camera adapted to scan said scene and operatively connected to said first camera, c. an optical filter mounted to said second camera and having a passband characteristic corresponding to the spectral characteristics of said object, said second camera being sensitive only to said spectral characteristics, d. circuit means connecting siad first and second cameras for electronically combining the outputs of both cameras whereby the image of said object will be enhanced with respect to said scene, e. tracking means responsive to the position of said object for controlling the direction of both of said cameras, f. said tracking means including gimbal means mounting said cameras for movement about mutually perpendicular axes, a pair of servo motors drivingly connected to said gimbal means for moving said cameras about said axes in response to directional signals and optical position sensing means including a silicon Schottky barrier dual axis detector connected to said servo motors and positioned to receive an image of said object focussed thereon, said sensing means adapted to generate directional signals corresponding to the position of said image, and g. reference signal generating means connected to said detector and error signal generating means connected to said detector and to said reference signal generating means for generating directional signals for said servo motors.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×