Lighting device for vehicles and production method
AssigneeHella GmbH & Co. KGaA
InventorsDietmar Haut, Martin Muegge
Life of this patent
Estimating the term…
Abstract
A lighting device for vehicles, comprising a housing containing a light source and an optical unit. The optical unit has a microstructured surface having a plurality of microstructure elements. The microstructure elements are formed from a limited selection of microstructure elements formed differently in at least two extension directions of the surface.
Claims11
A lighting device for a vehicle, the lighting device comprising:
- a housing;
- a light source arranged in the housing;
- and
- an optical unit having a microstructured surface having a plurality of microstructure elements that are differently designed in at least two extension directions of the microstructured surface,
- wherein the microstructure elements include Y-shaped microstructure elements, U-shaped microstructure elements, V-shaped microstructure elements, linear microstructure elements and punctiform microstructure elements.
A method for producing an optical component of a lamp or headlamp for a vehicle having a microstructured surface via injection molding, the method comprising:
- providing an injection mold that has a tool surface having a microstructure;
- introducing into the mold surface, via laser machining, selected microstructure elements that are differently designed in an extension plane of the mold surface;
- and
- injection molding the optical components with a formation of the microstructure elements in a surface of the optical component,
- wherein the selected microstructure elements include Y-shaped microstructure elements, U-shaped microstructure elements, V-shaped microstructure elements, linear microstructure elements and punctiform microstructure elements.
A method for producing a tool insert for injection molding an optical component containing a microstructured surface, wherein a number of microstructure elements that are differently dimensioned in an extension plane of the tool insert are introduced into a surface of the same via laser machining, the microstructure elements including Y-shaped microstructure elements, U-shaped microstructure elements, V-shaped microstructure elements, linear microstructure elements and punctiform microstructure elements.
Dependencies are inferred from the claim text.