Headlamp and method for operating same comprising a position and acceleration sensor and a control unit arranged in or directly on the headlamp

A method for operating an illumination device of a vehicle, the illumination device comprising a headlamp, a position and/or acceleration sensor, and a control unit, the method comprising:

• recording pitching movements of the vehicle using the position and/or acceleration sensor;
• and
• changing, by the control unit, a cut-off line of the headlamp to compensate for the pitching movements recorded by the position and/or acceleration sensor using an adjustment device coupled to the control unit, wherein the change of the cut-off line involves
• the control unit selecting correction parameters and/or items of calibration data, which are stored in a table or characteristic curve in the control unit, according to the recorded pitching movement of the vehicle, and
• the adjustment device mechanically adjusting the headlamp, at least one light source of the headlamp, a lens of the at least one light source, and/or a reflector of the at least one light source based on the selected correction parameters and/or items of calibration data stored in the control unit,
• wherein the position and/or acceleration sensor is integrated in the control unit and the control unit is arranged in the headlamp or directly on the headlamp, and
• wherein the position and/or acceleration sensor has a degree of accuracy less than 0.1°.