Accession Number:

AD0712819

Title:

EVALUATION OF LARGE COMMERCIAL FLASHTUBES,

Descriptive Note:

Corporate Author:

COAST GUARD BALTIMORE MD FIELD TESTING AND DEVELOPMENT CENTER

Personal Author(s):

Report Date:

1970-10-02

Pagination or Media Count:

32.0

Abstract:

The report examines the optical properties of commercially available helical coil flashtubes operated in first and fourth order fixed classical lenses. The old classical lenses which remain in service in lighthouses were originally designed for multiple wick oil burning light sources. These sources have been replaced by various improved electric incandescent lamps as they become available. Intensity, vertical beam profile and lenslamp ratio have been measured for a 1000-watt tungsten-halogen incandescent lamp, and 3.2 K joule and 24 K joule helical coil flashtubes in first and fourth order lenses. Author

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating
  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE