Apparatus for adjusting the light projecting angle of vehicle he

Details Apparatus for adjusting the light projecting angle of vehicle he Apparatus for adjusting the light projecting angle of vehicle he

1988-12-12

1990-11-06

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

362 71, B60L 114, B60Q 110

Patent

active

049688960

ABSTRACT:
A light projecting angle adjusting apparatus for a vehicle headlamp, where the division voltage points of a resistor device, across which a supply voltage is applied, are selected one at a time, to provide different division voltages as set voltages. A division voltage provided by a reference resistor device across which the supply voltage is applied is defined as a reference voltage which is compared with the selected set voltage. An output signal is generated according to the result of comparison and the light projecting angle of the headlamp is adjusted to a value which is determined from the output signal.

REFERENCES:
patent: 3634677 (1972-01-01), Stuttgart
patent: 4162424 (1979-07-01), Zillgitt et al.
patent: 4486688 (1984-12-01), Schmitz
patent: 4583152 (1986-04-01), Kawai et al.
patent: 4599544 (1986-07-01), Martin
patent: 4692668 (1987-09-01), Brown
patent: 4833573 (1989-05-01), Miyauchi et al.

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