RESEARCH IN ADVANCED PHOTOELECTRIC INFORMATION STORAGE

Abstract

Improvements of the tape storage camera tube increases the resolution from 40 to 75 line pairs per millimeter for small rasters at 5% response. Response curves showing 60 line pairs per millimeter at 10% response were measured. No grating disturbance or any effect of grating orientation was observed. The hard copy film photo of the display kinescope showed 23 line pairs per millimeter (retina dimension) resolution, 8 shades of gray resolvable by the eye, and a contrast of 80 percent. When the stored picture was underscanned by 18X to show only the AF test pattern, 64 line pairs per millimeter were resolved. Photodiodes were made to test the image section operation. Aperature response curves had a 5% response of 98 line pairs per millimeter, which when corrected for the aperture response of the lens became 220 line pairs per millimeter. A technique was developed for measuring the aperture response curves of lenses and image displays. Studies indicated that a mechanical means (harmonic drive) may be the best for smooth tape drive.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1963
Accession Number
AD0423982

Entities

People

  • A. S. Jensen
  • W. G. Beran
  • W. G. Reininger

Organizations

  • Westinghouse Electric Corporation

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Amplifiers
  • Camera Tubes
  • Cameras
  • Dielectric Properties
  • Electromagnetic Fields
  • Electron Guns
  • Hard Copy
  • Heat Energy
  • High Resolution
  • Image Orthicons
  • Materials Processing
  • Measurement
  • Optics
  • Photographic Film
  • Photographs
  • Photography

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Electronics Engineering
  • Image Processing and Computer Vision.

Technology Areas

  • Directed Energy