Accession Number : AD0481934

Title :   FOCUSING DEVICES FOR SEARCHLIGHT BEACONS.

Descriptive Note : Test rept.,

Corporate Author : COAST GUARD BALTIMORE MD FIELD TESTING AND DEVELOPMENT CENTER

Personal Author(s) : Naus, D. A.

Report Date : 09 MAY 1966

Pagination or Media Count : 30

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)

Descriptors :   *FOCUSING), (*BEACON LIGHTS, SEARCHLIGHTS, BEAMS(ELECTROMAGNETIC), PERFORMANCE(ENGINEERING), NAVIGATIONAL AIDS, INDICATOR LIGHTS, AIRPORTS, MANUFACTURING, REFLECTORS, SAFETY, IMAGES, INSTRUMENTATION, XENON LAMPS, LIGHTHOUSES, TEST EQUIPMENT.

Distribution Statement : APPROVED FOR PUBLIC RELEASE