Apparatus for controlling a headlight of a vehicle

Details Apparatus for controlling a headlight of a vehicle Apparatus for controlling a headlight of a vehicle

1987-12-28

1990-01-02

Yusko, Donald J.

Electric lamp and discharge devices: systems

Special application

Vehicle

315 79, 315 83, 362 64, 362 65, 362 66, 362 71, 250211R, G08B 2100, B60Q 126, B60Q 110

Patent

active

048915599

ABSTRACT:
In an apparatus for controlling a headlight of a vehicle, a light from a preceding or oncoming vehicle can be detected without being disturbed by a light reflected on guardrails and the like, or light from a traffic signal, street lights and the like, and the illumination area of the headlight can be suitably adjusted without unnecessary switching of an illumination mode of the headlight. This control is carried out by receiving a light impinging on the front end of the vehicle by a light receiving member divided into a plurality of regions, by carrying out a comparison and discrimination between the light detection signals from the plurality of regions, and based on a result thereof, by selecting an appropriate illumination mode of the headlight.

REFERENCES:
patent: 3617795 (1971-11-01), Peek
patent: 4197491 (1980-04-01), Connell et al.
patent: 4558259 (1985-12-01), Craig
patent: 4559544 (1986-07-01), Martin
patent: 4564789 (1986-01-01), Kokubu
patent: 4583152 (1987-04-01), Kawai et al.
patent: 4599544 (1986-07-01), Martin
patent: 4675535 (1987-06-01), Tsunekawa et al.
patent: 4728861 (1988-03-01), Kurihara et al.

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