Patent ID: 11906122
Assignee: ZKW GROUP GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An illumination device (1) for a vehicle headlight, comprising:
a lighting means (2), which is configured to generate and emit light;
a primary optic element (3), which is assigned to the lighting means (2), the primary optic element (3) having a primary light input face (3a) for receiving light emitted by the lighting means (2), the primary optic element (3) being configured to guide the light to a primary light output face (3b) of the primary optic element (3) and to emit it through the primary light output face (3b) in a main emission direction (4);
a secondary optic element (5), which is arranged after the primary optic element (3) in the light propagation direction and is spaced from the primary optic element (3), the secondary optic element (5) having a secondary light input face (5a), the secondary light input face (5a) and the primary light output face (3b) being arranged relative to each other such that the light from the lighting means (2) is emitted from the primary light output face (3b) via the secondary light input face (5a) into the secondary optic element (5), the light being guided inside the secondary optic element (5) to a secondary light output face (5b) of the secondary optic element (5), at least the secondary light input face (5a) and/or the secondary light output face (5b) being curved, the secondary optic element (5) having a spatial extent of at least 2 mm in the light propagation direction between the secondary light input face (5a) and the secondary light output face (5b),
wherein the secondary light input face (5a) is formed by a plurality of optical elements (6) which are arranged next to one another in a planar manner and are configured to refract the light beams as they enter the secondary optic element (5) such that the light beams are oriented in the direction of the main emission direction (4) after they are refracted on exiting the secondary light output face (5b),
wherein the primary optic element (3) has a single primary light input face (3a), wherein the lighting means (2) comprises a light source support (8) and a number of light sources (9), which can be activated individually, arranged thereon, wherein the light source support (8) is arranged on the primary light input face (3a) such that the light from the light sources (9) is exclusively emitted into the primary optic element (3) via the one primary light input face (3a),
wherein the light sources (9) are arranged on the light source support (8) along a substantially annular light source path, wherein the light source path is composed of an arrangement of the shortest distances between two adjacent light sources (9c),
wherein the secondary optic element (5) has a cutout (11) such that the secondary light output face (5b) has the shape of a closed path (12),
wherein the light source path reproduces the geometric shape of the closed path (12), and
wherein the lighting means (2) is arranged relative to the primary light input face (3a) such that the light is emitted from the lighting means (2) into the primary optic element (3) in a direction other than the main emission direction (4), wherein deflection means (3c) are arranged inside the primary optic element (3) and are configured to deflect the light, after it enters the primary optic element (3), in the direction of the main emission direction (4) inside the primary optic element (3) by means of the deflection means (3c).