Wideband illumination device
First Claim
1. A wideband illumination device, in particular for use in a motor vehicle, which is formed by a multiplicity of semiconductor light sources, one portion of the semiconductor light sources emitting light in the visible wavelength region, and another portion of the semiconductor light sources emitting light in the non-visible wavelength region, wherein at least some of the semiconductor light sources are assigned individually or in groups to optical arrangements for generating an individual emission characteristic.
2 Assignments
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Accused Products
Abstract
The invention relates to a wideband illumination device comprising a plurality of semiconductor light sources arranged in a field as a light source, for obtaining a specified light distribution for a vehicle headlight in different operating conditions. Parts of the semiconductor light sources are able to emit light in the visible wavelength region, while others emit light in the non-visible wavelength region. In an especially advantageous manner, individual optical elements are associated with the semiconductor light sources, either individually or in groups, for the targeted production of different radiation characteristics. One such wideband illumination device can be used to create a compact individual headlight by which means both the immediate vicinity and the main beam region in front of a motor vehicle can be illuminated with visible light. The same headlight can also be used to provide light in the non-visible region for using with systems for improving night vision.
36 Citations
19 Claims
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1. A wideband illumination device, in particular for use in a motor vehicle,
which is formed by a multiplicity of semiconductor light sources, one portion of the semiconductor light sources emitting light in the visible wavelength region, and another portion of the semiconductor light sources emitting light in the non-visible wavelength region, wherein at least some of the semiconductor light sources are assigned individually or in groups to optical arrangements for generating an individual emission characteristic.
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14. A method for operating a wideband illumination device, comprising:
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forming an array of individual optical arrangements that are in each case assigned at least one semiconductor light source, in particular a light emitting diode, emitting light in the visible wavelength region by means of one portion of the semiconductor light sources, and emitting light in the non-visible wavelength region with another portion of the semiconductor light sources, wherein the semiconductor light sources can be driven individually or in groups individually. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification