Report on Ultra-Violet Signalling Equipment, Tests of January 1938

Abstract

Ultra-violet transmitters were made of the General Electric Company Type H-3 high pressure, high intensity, mercury lamp screened by an ultra-violet filter of Corning "Violet Ultra" black glass. The transmitted radiation was almost entirely the mercury 366 uu ultra-violet line. The ultra-violet receivers were fluorescent telescopes. Tests of the equipment at night between a destroyer and a submarine showed that the range with the ultra-violet telescope was about 4800 yards and with ordinary binoculars about 3200 yards. It was concluded that the ratio of the ultra-violet telescope range to binocular range was too small to give desired security and therefore that the equipment was not suitable for Service application.

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Document Details

Document Type
Technical Report
Publication Date
Aug 12, 1938
Accession Number
AD1155979

Entities

People

  • Edward O. Hulburt

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Binoculars
  • Destroyers
  • Electromagnetic Radiation
  • High Pressure
  • Intensity
  • Lamps
  • Mercury Lamps
  • Optical Equipment
  • Optical Magnification Devices
  • Radiation
  • Security
  • Submarines
  • Telescopes
  • Transmitters

Readers

  • Astronomy and Astrophysics.
  • Military Science
  • Vision Science/Vision Psychology/Cognitive Neuroscience.

Technology Areas

  • Space