Fiber optic traffic signal light system having a shutter control

Details Fiber optic traffic signal light system having a shutter control Fiber optic traffic signal light system having a shutter control

1994-08-02

1996-10-08

Peng, John K.

Communications: electrical

Traffic control indicator

340908, 340931, 34081542, 34081543, 362 32, 362300, 362317, G08G 1095

Patent

active

055635881

ABSTRACT:
The system includes a high-intensity light source, a fiber optic conduit for transmitting a light-beam, and colored lenses, which emit red, yellow, and green light on fiber optic lines. Each traffic light has a shutter and control means for opening and closing the shutters in the proper sequence for preset time periods to control red, yellow, and green lights.

REFERENCES:
patent: 4684919 (1987-08-01), Hihi
patent: 4924612 (1990-05-01), Kopelman
patent: 5010319 (1991-04-01), Killinger
patent: 5111183 (1992-05-01), Wang
patent: 5278554 (1994-01-01), Marton

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