Illumination device

A method for producing an illumination device, the method comprising:

• providing an optoelectronic light source having a light emission surface for the emission of light;
• producing an optical body, through which the light passes, for light redistribution, on which optical body the light is incident with a main direction, wherein the optical body is produced by injection molding, wherein the optical body is divided into an inner lens part and an outer reflector part adjoining thereon outward in relation to directions perpendicular to the main direction, which optical body parts are formed monolithically with one another, wherein the inner lens part is configured as a Fresnel lens, so that a light passage surface of the inner lens part is subdivided into active flanks and folding flanks, which Fresnel lens having the active flanks acts as a collimating lens, so that a first part of the light which passes through the Fresnel lens via the active flanks is refracted toward the main direction, wherein a second part of the light which passes through the Fresnel lens via the folding flanks is refracted away from the main direction, in which the folding flanks, observed in sectional planes which each contain a center axis of the optical body, extend substantially parallel to one another, insofar as they lie on the same side of the center axis, and wherein a reflection surface is provided on the outer reflector part, on which the second part of the light is incident and is reflected thereon and deflected with the reflection toward the main direction.

An illumination device comprising

• an optoelectronic light source having a light emission surface for the emission of light and an optical body, through which the light passes, for light redistribution, on which optical body the light is incident with a main direction,
• wherein the optical body is divided into an inner lens part and an outer reflector part adjoining thereon outward in relation to directions perpendicular to the main direction, which optical body parts are formed monolithically with one another,
• wherein the inner lens part is configured as a Fresnel lens, so that a light passage surface of the inner lens part is subdivided into active flanks and folding flanks, which Fresnel lens having the active flanks acts as a collimating lens, so that a first part of the light which passes through the Fresnel lens via the active flanks is refracted toward the main direction, wherein a second part of the light which passes through the Fresnel lens via the folding flanks is refracted away from the main direction, and wherein a reflection surface is provided on the outer reflector part, on which the second part of the light is incident and is reflected thereon and deflected with the reflection toward the main direction,
• in which the second part of the light enters therein at an inner surface of the outer reflector part and the reflection surface is arranged on an outer surface, which is opposite to the inner surface, of the outer reflector part, in which the outer surface of the outer reflector part forms a total reflection surface and is molded to comprise a plurality of oblong prism protrusions, each of which has two flanks, which taper toward one another outward into a respective ridge for each prism protrusion and enclose there a respective wedge angle of at least 60° and at most 120° in each case with one another, so that each of the prism protrusions forms a reflection prism, at which at least the majority of the respective part incident thereon of the second part of the light is deflected by twofold total reflection toward the main direction.