Patent ID: 11873961
Assignee: ZKW GROUP GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G | IPC F

Claim 0:
1. An illumination device (10) for a motor vehicle headlight, which illumination device (10) comprises:
at least one first light module (100) for producing a light distribution having at least one first and one second light source (110, 120), wherein the first light source (110) is designed to emit light in a first emission direction (X1), and wherein the second light source (120) is designed to emit light in a second emission direction (X2), wherein the first and the second emission direction (X1, X2) form an angle (W1) greater than zero degrees to each other;
a bulb shield (300), wherein the bulb shield (300) comprises an optically relevant shield edge (310) for producing a cut-off line, wherein the first light module (100) is arranged on an upper side of the bulb shield (300) and cooperates in combination with the optically relevant shield edge (310) of the bulb shield to produce light distribution;
a projection lens (400) with an optical axis (A), which is designed to image the light that can be produced by the first light module (100) in front of the illumination device (10), wherein the projection lens (400) is designed as a Fresnel lens, which Fresnel lens has a base body (410) and several annular steps (420) arranged on the base body (410), which steps (420) are arranged substantially concentrically to one another, wherein each step (420) has a main surface (420a) to project the light beams of the at least one light module (100) in front of the illumination device (10) and a sloping surface (420b) extending from the base body (410) to the main surface (420a), wherein the sloping surface (420a) forms a slope angle (W2) to the optical axis (A), and wherein the main surface (420a) and the sloping surface (420b) form a step edge (430) in a common surface section line,
wherein the slope angle (W2) varies continuously along the annular circumference of a step edge (430).