System and method for broadcasting colored light for emergency signalling
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United States of America Patent
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-
Mar 2, 1999
Issued Date -
N/A
app pub date -
Sep 18, 1997
filing date -
Feb 2, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A lighting system and method for broadcasting colored lights as emergency warning signals from a light source. A centralized continuous light source is coupled via a fiber optic transmission medium to an external display location such as a lens or the like located on a vehicle. The color and the relative intensity of each color is periodically modulated to alternate between at least two states such that the contrast between these alternating states is perceived by observers to be a flashing source of light with no off-time. The frequency and the duty cycle of the repetition rate of alternating between the states may be further controlled to better draw attention to the light source.
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