Accession Number : AD0649827

Title :   CAMERA TUBE WITH INTERNAL IMAGE-MOTION COMPENSATION.

Descriptive Note : Final rept. no. 14, 1 Feb 63-15 Nov 66,

Corporate Author : GENERAL ELECTRIC CO SYRACUSE N Y PICKUP TUBE OPERATION

Personal Author(s) : Schlesinger,Kurt

Report Date : MAR 1967

Pagination or Media Count : 142

Abstract : A three-inch image orthicon with electrostatic motion-compensation was developed and tested. It measures 21-inches overall, of which 7-1/2 inches are taken up by the image-section. Resolution is of the order of 17 line-pairs per mm. Capabilities include the tracking of translatory motion of images projected on photocathode within a 1-1/16 inch circle. In this process, storage gains of over 40db in light-sensitivity have been realized. Image-deflection requires a balanced voltage of 500 volt per terminal. A feedback-dc-amplifier is described which operates on a single-ended input of 10 volts. In circuit, its square-wave response extends beyond 300 kilo-Hertz, including d-c. Image misregistry follows an r to the 3rd power-law with radius (r). Errors of superposition stay below 0.8%, and 2.8%, respectively, within areas of 9/16-inch and 1-1/16-inch diameter on photocathode. Several types of test-equipment are described. This includes gating-pulse generators, electronic switches of the type 'DPDT', and a special film-transport for continuous-motion at one frame per second, complete with synchronous slow-scan circuitry. (Author)

Descriptors :   (*CAMERA TUBES, *IMAGE MOTION COMPENSATION), IMAGE ORTHICONS, FOCUSING, SCANNING, PHOTOCATHODES, DEFLECTION, IMAGES, TELEVISION CAMERAS, AIRBORNE, PULSE GENERATORS, ELECTRONIC SWITCHES

Subject Categories : Photography
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE