Apparatus for regulating the illumination field of a vehicle hea

Details Apparatus for regulating the illumination field of a vehicle hea Apparatus for regulating the illumination field of a vehicle hea

1998-02-06

2000-11-07

Vu, David

Electric lamp and discharge devices: systems

Special application

Vehicle

362 71, B60Q 106

Patent

active

061441597

ABSTRACT:
A headlight illumination field regulating apparatus includes an electromagnetic radiation emitter, a reflected radiation sensor, an evaluation unit, and a unit for adjusting the alignment position of the headlights. The electromagnetic radiation emitter operates to radiate electromagnetic radiation on the road to the front of the automobile and the reflected radiation sensor senses reflected radiation and creates a data point representative of the irradiated spot. The evaluation unit evaluates the data points to establish the position of the detected spot or area and thereafter compares the evaluated position with a predetermined desired position and subsequently generate a correction signal to control the regulation or adjustment of the headlights into a proper light projecting orientation which ensures a proper projection limit of the beam of the headlight.

REFERENCES:
patent: 4620267 (1986-10-01), Cibie
patent: 4679935 (1987-07-01), Fukuda et al.
patent: 5193894 (1993-03-01), Lietar et al.
patent: 5633710 (1997-05-01), Kumra et al.

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