FOCUSING DEVICES FOR SEARCHLIGHT BEACONS.

Abstract

Two focusing devices, operating on the pinhole camera principle, were used to focus 24-in. and 36-in. searchlight beacons presently being used in Charleston Lighthouse. Using these devices a collimated, horizontal beam was obtained from each beacon. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 09, 1966
Accession Number
AD0481934

Entities

People

  • D. A. Naus

Tags

DTIC Thesaurus Topics

  • Light Sources
  • Lighthouses
  • Lighting Equipment
  • Navigational Aids
  • Navigational Equipment
  • Navigational Lights
  • Searchlights
  • Signal Lights

Fields of Study

  • Physics

Readers

  • Aviation Safety and Air Traffic Management
  • Image Processing and Computer Vision.
  • Military Engineering.