Method and apparatus for increasing effective light intensity of

Details Method and apparatus for increasing effective light intensity of Method and apparatus for increasing effective light intensity of

1981-05-07

1983-06-07

Crosland, Donnie L.

Communications: electrical

Selective

Having indication or alarm

340 50, 340 84, 340 87, 362 35, 362170, 318359, 350 99, B60Q 146, H02P 508

Patent

active

043873626

ABSTRACT:
A rotating signal light for use on police cars, ambulances and other vehicles on which a warning light is required, the light being driven at a non-uniform speed of rotation for the purpose of enhancing light intensity in certain predetermined directions and reducing light intensity in other directions.

REFERENCES:
patent: 1100748 (1914-06-01), Laycock
patent: 1444543 (1923-01-01), Schuler
patent: 1561266 (1925-11-01), Menzies
patent: 2008408 (1937-07-01), Thompson
patent: 2096755 (1937-10-01), Parsberg
patent: 3133263 (1964-05-01), Norberg

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