DESIGN, DEVELOPMENT, AND FABRICATION OF AN ULTRA-HIGH-RESOLUTION CATHODE-RAY TUBE.

Abstract

The 5-in UHR tube uses a two-spiral optical system for focus and collimation. At 18KV, it puts an average of 4muA through a spot of 1/3 mil. This resolution is fully preserved within a 4-in screen diameter by three dynamic corrections: one for focus and two for astigmatism. An analog computer derives these signals from deflection, using a new type of product-generator called the Roving-Square Tube (RST). Spotsize and shape are measured objectively by a new type of spot-dissector, using crossed slits and circular sweep. Errors from phosphor decay are eliminated by subcarrier modulation at 10 megacycles. Twelve ultra-high-resolution (UHR) tubes, plus the magnetic components required to operate them, were constructed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1964
Accession Number
AD0457825

Entities

People

  • E. T. Rate
  • K. Schlesinger

Organizations

  • General Electric

Tags

DTIC Thesaurus Topics

  • Analog Computers
  • Astigmatism
  • Cathode Ray Tubes
  • Computers
  • Deflection
  • Diameters
  • Fabrication
  • Generators
  • High Resolution
  • Modulation
  • Phosphors
  • Shape

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Human-Computer Interaction (HCI).
  • Image Processing and Computer Vision.