Traffic signal using light-emitting diodes

Details Traffic signal using light-emitting diodes Traffic signal using light-emitting diodes

1988-09-02

1990-09-04

Crosland, Donnie L.

Communications: electrical

Traffic control indicator

Intersection normally under local controller

340762, 340907, 34081503, 362800, G08G 107

Patent

active

049548220

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.

REFERENCES:
patent: 4271408 (1981-06-01), Teshima et al.
patent: 4298869 (1981-11-01), Okuro
patent: 4654629 (1987-03-01), Bezos et al.

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