There is provided an aiming adjustment method for a vehicle headlamp which performs aiming adjustment based on a reference point on a light-dark boundary of a light distribution pattern, the method includes setting, as the reference point, an intersection between a vertical light-dark boundary of a part of multi-divided light distribution patterns which are to be synthesized to form a high-beam light distribution pattern and a horizontal light-dark boundary of a low-beam light distribution pattern.

The invention relates to a motor vehicle headlamp that has a housing and a light module that is connected to the housing by an adjustment device for adjusting the main beam direction thereof. The adjustment device has a threaded adjustment assembly and a pivot lever, which is supported in the housing such that it can pivot about a stationary pivot point in relation to the housing. The pivot lever has a movement input coupling section at a distance to the pivot point, with which it is coupled in a flexible manner to the adjustment assembly. The pivot lever is connected to the light module at a movement output coupling section that is at a distance to the pivot point and the movement input coupling section.

A method of illumination includes energizing a light source of a lighting apparatus to emit a plurality of light rays. The method also includes directing a first light ray of the plurality of light rays into a first upper passageway. The method also includes directing a second light ray of the plurality of light rays into a first lower passageway. The method also includes redirecting the first light ray from the first upper passageway into a second upper passageway. The method also includes redirecting the second light ray from the second upper passageway into a second lower passageway.

A system includes an attachment part and a holding element for holding the attachment part on a carrier part, the holding element having a threaded part connected to the attachment part and an internal thread for a holding screw, and a spacer part, the spacer part and the threaded part having interacting threads, the spacer part having a through opening flush with the internal thread of the threaded part when the spacer part is screwed to the threaded part, with the result that the carrier part can be held between a head of the holding screw and the spacer part, the threaded part having a holding section for holding the attachment part, the holding section having at least one latching element which interacts with at least one corresponding latching element of the attachment part for releasably latching the attachment part on the threaded part.

A vehicle headlight aiming device is provided that includes, a device housing having an input drive gear, a screw chamber, an output screw having a screw shaft, a screw first end that is rotationally coupled at least indirectly with the input drive gear, and a screw second end. The device further including an indicator nut having a base with a nut indicator mark, a first leg and second leg extending from a base bottom portion, and an expandable threaded opening extending between a first threaded wall of the first leg and a second threaded wall of the second leg, the threaded walls selectively engageable with a threaded portion of the screw shaft, wherein the threaded opening is expandable to disengage the first threaded wall and the second threaded wall from the threaded portion to allow longitudinal movement of the indicator nut within the device housing without rotating the output screw.

A vehicle headlamp is provided, where a high beam module includes a primary optical element (2) and a primary light source (3) located on a back side of the primary optical element (2), and light emitted by the primary light source (3) forms a high beam light shape after passing through the primary optical element (2), where the high beam module is further provided with an auxiliary light source (4) beside the primary light source (3), light emitted by the auxiliary light source (4) forms an auxiliary light shape (6) after passing through the primary optical element (2), and when the low beam module is in a light-emitting state, the auxiliary light source (4) is in a light-emitting state. Beneficial effects: in a low beam lighting mode, a high beam part of the vehicle headlamp remains on, which improves the beauty of the overall appearance of the vehicle headlamp. Moreover, because the brightness of the auxiliary light source (4) is very weak, and does not affect the light intensity and uniformity of low beam light shapes (7 and 8) of a vehicle, other nearby vehicles would not be affected, and thus the driving safety of the vehicles would not be affected.

A torque limiting adjuster for adjusting the position of an adjustable part of a lighting device includes a housing, an output shaft, a driving gear, a driven gear, and a biasing element. The housing includes a main opening and a first threaded portion. The driven gear includes a gearing portion adapted to be engaged with the driving gear. The driving and driven gears are engaged by the biasing element. The output shaft has a first linear guiding portion oriented in a main direction and a second threaded portion coupled with the first threaded portion. The driven gear has a second linear guiding portion slidably coupled with the first linear guiding portion. The second linear guiding portion is configured to transmit the rotation of the driven gear to the first linear guiding portion when the driven gear rotates driven by the driven gear. The driven gear exerts a reaction force on the driving gear that overcomes the biasing element when the driven gear is forced to rotate beyond the predetermined limit position.

A headlamp leveling device and a headlamp leveling method. The headlamp leveling device may include a control voltage generator that generates a control voltage based on a width of a pulse, a control integrated circuit (IC) that controls a rotation direction of a motor by comparing a voltage level of a feedback voltage with a voltage level of the control voltage, a shaft position detector that generates a voltage corresponding to a position of the shaft moving with rotation of the motor, and a feedback voltage generator that generates the feedback voltage based on a voltage generated to correspond to the position of the shaft.