Patent ID: 11878623
Assignee: ZKW GROUP GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. An illumination device (1) for a motor vehicle headlight or a motor vehicle, the illumination device comprising:
an illuminant (2); and
an optical device (3) associated with the illuminant (2), wherein the illuminant (2) is configured to generate light and emit the generated light onto the optical device (3), and the optical device (3) is configured to perform at least two different light functions from the light of the illuminant (2),
wherein the optical device (3) has an optically active region (4), which has an optical axis (x) and a main plane (4c), wherein the optically active region (4) has a light entry surface (4a) and a light emitting surface (4b) opposite the light entry surface (4a), wherein light emitted by the illuminant (2) enters the optically active region (4) of the optical device (3) via the light entry surface (4a), passes through the optically active region (4) of the optical device (3) and exits the optically active region (4) of the optical device (3) via the light emitting surface (4b), wherein the optical device (3) has an adjustment means (5), which is configured to adjust operating states of the optical device (3), wherein at least two different operating states of the optical device (3) are provided,
wherein in a first operating state (B1), the optical device forms a first light function with the light of the illuminant (2) as it passes through the optically active region (4a), and in a second operating state (B2), the optical device (3) forms a second light function that is different from the first light function with the light of the illuminant (2) as it passes through the optically active region (3),
wherein the illuminant (2) comprises a plurality of light sources (2a) spaced apart from one another at a minimum distance, which are arranged in a light source surface (2b) distributed on a light source support (2c) of the illuminant (2), wherein each light source (2a) emits a divergent light beam with an opening angle (a), which spreads along a main emission direction (6), wherein each light beam forms a luminous spot on the optically active region (4) of the optical device (3),
wherein the optically active region (4) of the optical device (3) has scattering elements (7), which are configured to scatter the light of the light sources (2a) around the main emission direction (6) when passing through the optically active region (4), and
wherein the adjustment means (5) is configured to adjust the optical device (3) in such a way that in the first operating state (B1), the optically active region (4) of the optical device (3) has a first normal distance (L1) to the light source surface (2b) and, in the second operating state (B2), the optically active region (4) of the optical device (3) has a second normal distance (L2) to the light source surface (2b), wherein the first normal distance (L1) is such that luminous spots of light beams from two adjacent light sources (2a) are overlap-free on the optically active region (4), wherein the second normal distance (L2) is greater than the first normal distance (L1) such that luminous spots of light beams from two adjacent light sources (2a) at least partially overlap on the optically active region (4),
wherein the illumination device is part of a motor vehicle head light.