Obstacle detection apparatus for vehicles

Communications: electrical – External condition vehicle-mounted indicator or alarm – Transmitter in another vehicle

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Details

340901, 340435, 340436, 340438, 180167, 180169, 250236, 250224, G08G 116

Patent

active

057450501

ABSTRACT:
An obstacle detecting apparatus including a light projecting assembly for projecting the laser light generated in a laser light emitting element through a light emitting path, a light introducing assembly for introducing the laser light reflected by an obstacle into a light receiving element through a light receiving path, and a driving motor for driving the light emitting assembly and at least a portion of the light introducing assembly. The light path in the light projecting assembly is different from the light introducing path, and a distance to the obstacle is obtained based on a propagating delay time from emitting the laser light by the laser light emitting element until receiving the laser light by the laser light receiving element. Also included is a direction detecting device for detecting a direction in which the laser light is projected, a light emission level detecting device for detecting a strength of the laser light, a stain detecting device for detecting stains on the housing, and a cleansing device for sweeping the surface of the housing.

REFERENCES:
patent: 4558215 (1985-12-01), Kaneko et al.
patent: 4668859 (1987-05-01), Winterer
patent: 4849731 (1989-07-01), Melocik
patent: 5026153 (1991-06-01), Suzuki et al.
patent: 5122796 (1992-06-01), Beggs et al.
patent: 5293162 (1994-03-01), Bachalo
patent: 5519377 (1996-05-01), Murphy

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