Reflector road sign with self-provided light means

Details Reflector road sign with self-provided light means Reflector road sign with self-provided light means

1997-01-17

1997-12-30

Phan, James

Optical: systems and elements

Signal reflector

Discrete reflecting elements formed as a unitary mass

359515, 359551, 359552, 404 16, G02B 5136, G02B 512

Patent

active

057037191

ABSTRACT:
A reflector road sign including a reflector body made of a tempered glass having Fe.sub.2 O.sub.3 content below 0.3%, a casing made to receive the reflector body, a solar lighting system installed in the reflector body, the solar lighting system including a LED (light emitting diode) lamp, a solar cell assembly, a rechargeable battery connected to the solar cell assembly, a control circuit connected to the rechargeable battery and the LED lamp and controlling the LED lamp to operate when the intensity of ambient light drops below a predetermined level, and a reflecting device mounted around the LED lamp to reflect light in desired directions.

REFERENCES:
patent: 4050834 (1977-09-01), Lee
patent: 4668120 (1987-05-01), Roberts
patent: 5003441 (1991-03-01), Crowe et al.
patent: 5365372 (1994-11-01), Chen
patent: 5453729 (1995-09-01), Chu

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