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Accession Number:
AD0481934
Title:
FOCUSING DEVICES FOR SEARCHLIGHT BEACONS.
Descriptive Note:
Test rept.,
Corporate Author:
COAST GUARD BALTIMORE MD FIELD TESTING AND DEVELOPMENT CENTER
Report Date:
1966-05-09
Pagination or Media Count:
30.0
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
Distribution Statement:
APPROVED FOR PUBLIC RELEASE