Road structure – process – or apparatus – Traffic director – Attenuated lane marker type
Patent
1990-10-19
1993-08-31
Britts, Ramon S.
Road structure, process, or apparatus
Traffic director
Attenuated lane marker type
404 16, 404 15, G08B 100, E01F 1100
Patent
active
052403440
ABSTRACT:
A lane marker which is attached to the surface of a road to define the boundary between two lanes, and which is adapted to receive light from the headlights of a rear one of two vehicles traveling in the same direction on the road and direct a portion of that light forwardly from the marker for viewing from the forward vehicle, to indicate to the driver of the forward vehicle the position of the rear vehicle with respect to the marker. The device includes a prism or other light directing unit or assembly acting by refraction and/or reflection to aim the light forwardly within a preferably limited angle assuring sufficient intensity of the light for effective viewing by the driver of the forward vehicle. The device may also reflect some of the light back to the trailing vehicle for viewing by its driver.
REFERENCES:
patent: 3519327 (1970-07-01), Nakajima
patent: 3627403 (1971-12-01), Hedgewick
patent: 3836226 (1974-09-01), Cechetini
patent: 4076383 (1978-02-01), Heasley
patent: 4234265 (1980-11-01), Otis
patent: 4609266 (1986-09-01), Blom
patent: 4674850 (1987-06-01), Blom
patent: 4726706 (1988-02-01), Attar
Britts Ramon S.
Connolly Nancy P.
Green William P.
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