Variable message traffic signal lamp

Details Variable message traffic signal lamp Variable message traffic signal lamp

1998-09-17

2000-06-06

Hofsass, Jeffery A.

Communications: electrical

Traffic control indicator

345 83, 345151, 362240, 362293, G08G 1095

Patent

active

060724072

ABSTRACT:
A variable message traffic signal lamp comprising a single (LED) imbedded face, capable of displaying appropriate signal lights, symbols, or even character messages on the face, thus simplifying the design and the structure of the traffic signal head set so that fabrication and installation costs of traffic signal lights are reduced, and reducing power consumption and maintenance costs through the use of LED's, and displaying messages including not only the conventional traffic signal lights but also the progression of the signal phase in display so that one can predict the change of the current phase and prepare for it.

REFERENCES:
patent: 3234506 (1966-02-01), Hines
patent: 4271408 (1981-06-01), Teshima et al.
patent: 5150116 (1992-09-01), West
patent: 5519390 (1996-05-01), Casini
patent: 5917431 (1997-06-01), Sanada et al.

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