| 摘要 |
The present invention relates to a device for automatic correction of the orientation of at least one motor-vehicle (V) headlamp (P) upon variations in the attitude of the motor vehicle (V), including an emitter (1) projecting, onto the ground in front of the vehicle (V), two light spots (T1, T2) which are spaced apart in a direction parallel to the longitudinal axis of the vehicle (V), a sensor (2) of the illumination of the light spots (T1, T2) comprising an objective (3) forming an image (I1, I2) of the light spots (T1, T2) on a receiver (6) and supplying an output signal (dc1, dc2) for each one, processing means (5) suitable for deriving a control signal from the output signal from the sensor (2), and an actuator (4) controlled by the control signal and able to alter the elevation orientation of a reflector (R) of the headlamp (P). According to the present invention, the control signal for the actuator (4) is derived by the processing means (5) on the basis of a linear function of the output signals (dc1, dc2) supplied by the sensor (2) for each image (I1, I2) of each light spot (T1, T2)
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