Generating a light emission pattern in a far field
AssigneeOSRAM GmbH
InventorsJuergen Hager, Stephan Schwaiger
Life of this patent
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Abstract
A lighting device for a headlight for generating a light emission pattern in a far field is provided. The lighting device includes at least two phosphor surfaces arranged rotationally movably between different positions, and at least one light source spaced apart from the phosphor surfaces and serving for emitting primary light for illuminating a portion of the phosphor surfaces. An associated predetermined light emission pattern is generatable in respectively exactly one predetermined position of the phosphor surfaces.
Claims20
A lighting device for a headlight for generating a light emission pattern in a far field, the lighting device comprising:
- at least two phosphor surfaces arranged rotationally movably between different positions;
- at least one light source spaced apart from the phosphor surfaces and serving for emitting primary light for illuminating a portion of the phosphor surfaces;
- wherein an associated predetermined light emission pattern is generatable in respectively exactly one predetermined position of the phosphor surfaces;
- and
- wherein the headlight is a vehicle headlight.
A lighting device for a headlight for generating a light emission pattern in a far field, the lighting device comprising:
- at least two phosphor surfaces arranged rotationally movably between different positions;
- at least one light source spaced apart from the phosphor surfaces and serving for emitting primary light for illuminating a portion of the phosphor surfaces;
- wherein an associated predetermined light emission pattern is generatable in respectively exactly one predetermined position of the phosphor surfaces;
- and
- wherein at least two different light emission patterns have a different shape.
A lighting device for a headlight for generating a light emission pattern in a far field, the lighting device comprising:
- at least two phosphor surfaces arranged rotationally movably between different positions;
- at least one light source spaced apart from the phosphor surfaces and serving for emitting primary light for illuminating a portion of the phosphor surfaces;
- wherein an associated predetermined light emission pattern is generatable in respectively exactly one predetermined position of the phosphor surfaces;
- and
- wherein the light emission pattern is generatable by a simultaneous illumination of a plurality of rotationally movable phosphor surfaces.
Dependencies are inferred from the claim text.