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

1996-02-28

1997-04-08

Swarthout, Brent A.

Communications: electrical

Traffic control indicator

340916, 340927, 340930, 34081542, 34081564, 34081575, 362 32, G08G 1095

Patent

active

056191944

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: 5387908 (1995-02-01), Henry et al.

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