Distance measuring apparatus

Details Distance measuring apparatus Distance measuring apparatus

1992-06-03

1994-02-01

Hellner, Mark

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 5, G01C 308

Patent

active

052836223

ABSTRACT:
A distance measuring apparatus installed on a car for measuring the distance of the car from the one in front. The distance measuring apparatus comprises a laser generator for emitting a laser beam, a photosensor for receipt of the laser beam reflected from the car in front, means for calculating the distance between the cars when the photosensor receives the reflected laser beam, and a control unit for controlling an adjustable range of the emitted laser beam according to the calculated distance.

REFERENCES:
patent: 4639588 (1987-01-01), Shinoda
patent: 4716298 (1987-12-01), Etoh
patent: 4786164 (1988-11-01), Kawata

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