Traffic signal using light-emitting diodes
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United States of America Patent
Stats
-
Sep 4, 1990
Grant Date -
N/A
app pub date -
Sep 2, 1988
filing date -
Sep 2, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A traffic control device includes a housing having a display structure. The display structure includes a non-reflective support panel supporting a plurality of light emitting diode elements arranged in a configuration defining a traffic control symbol. The light emitting diode elements are high intensity limited dispersion L.E.D.'s which emit light in an attenuated angular spread about a central axis. The light emitting diode elements are supported on with their control axis generally parallel to each other and generally perpendicular to the support panel.
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Cited Art Landscape
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