Obstacle detection apparatus for vehicles
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United States of America Patent
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-
Apr 28, 1998
Grant Date -
N/A
app pub date -
Apr 26, 1995
filing date -
Oct 21, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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