G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
Landscapes
Physics & Mathematics
(AREA)
Electromagnetism
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General Physics & Mathematics
(AREA)
Lighting Device Outwards From Vehicle And Optical Signal
(AREA)
Pedestrian presence warning light for supplementary wear - has luminous source produced by transparent stalk, with fluorescent top and torch type unit underneath, worn on back