Device for detecting road surface condition

Details Device for detecting road surface condition Device for detecting road surface condition

1987-01-09

1988-11-01

Rosenberger, R. A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356 4, G01B 1130

Patent

active

047814659

ABSTRACT:
A device for detecting road surface condition in front of a running car by radiating a directional beam or beams onto a point or points on the road surface at predetermined distance or distances in front of the car body and receiving the reflected beam or beams from said point or points, and determining the road surface condition based on the measurement of the distance or distances.

REFERENCES:
patent: 4040738 (1977-09-01), Wagner
patent: 4456829 (1984-06-01), Fohey
patent: 4541723 (1985-09-01), Pirlet
patent: 4632543 (1986-12-01), Endo

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