Patent ID: 11965633
Assignee: ZKW GROUP GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An illumination device (10) for a motor vehicle headlight for producing an asymmetrical dipped beam distribution (50), wherein the dipped beam distribution (50) has a homogeneous light distribution in the region (51) below the intersection HV of the horizontal line H-H and the vertical line V-V of an aiming screen for measuring a light distribution up to at least −3° along the vertical line V-V, the illumination device (10) comprising:
an illuminant (100) for emitting light;
a screen (200) with a screen edge (200a), wherein the screen (200) is arranged in such a way that the screen edge (200a) cooperates to produce an asymmetrical dipped beam distribution (50), and wherein the screen (200) comprises a first and a second screen section (210, 220), wherein the second screen section (220) is elevated relative to the first screen section (210) as seen in a correctly installed state of the illumination device in a motor vehicle, and wherein the first and the second screen section (210, 220) are connected to one another by a connecting section (230) of the screen (200); and
a projection optics system (300) comprising an optical axis (A), which projection optics system (300) is designed to project the dipped beam distribution (50) produced by the screen (200) in combination with the illuminant towards a main emission direction (X) in front of the illumination device (10),
wherein the connecting section (230) of the screen has a deflection surface (240) with an end edge (241), which end edge (241) forms a section of the screen edge (200a) of the screen (200),
wherein a first virtual axis (y) is arranged orthogonally to the main emission direction (X), wherein the first virtual axis (y) as seen in a correctly installed state of the illumination device is arranged in a horizontal plane, and
wherein the deflection surface (240) extends along a plane, wherein the plane has a spatial vector (A), which spatial vector (A), as seen in the main emission direction (X), forms a first angle (W1) of 1* to 3* to the first axis (y), and as seen along the first axis (y), forms a second angle (W2) of 1* to 3* to the main emission direction (X) in order to direct at least part of the light of the illuminant (100) incident on the deflection surface (240) towards the region (51) below the intersection HV up to at least −3* along the vertical line V-V.