Headlight for a motor vehicle
AssigneeAudi AG
InventorsCarsten GUT, Florian KOCH
Life of this patent
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Abstract
The invention relates to a headlamp (1) for a motor vehicle, with a first semiconductor light source (2) for generating a first radiation, with a second semiconductor light source (3) for generating a second radiation, and with an optical coupling device (4) to couple the generated radiations, which coupling device comprises a first and a second coupling surface (5, 6), wherein a converter element (8) for converting a primary radiation emitted by the first semiconductor light source (2) into the generated first radiation is arranged in an optical path between the first semiconductor light source (2) and the first coupling surface (5) in order to improve the light quality of the headlamp.
Claims19
A headlamp for a motor vehicle, comprising
- a first semiconductor light source for emitting a primary radiation having a first wavelength;
- a second semiconductor light source for generating a second radiation having a second wavelength that is substantially the same as the first wavelength;
- an optical coupling device for coupling a first radiation and the second radiation, the optical coupling device includes a first and a second coupling surface;
- a converter element arranged in an optical path between the first semiconductor light source and the first coupling surface, the converter element configured to convert the primary radiation into a first radiation;
- and
- an optical filter element arranged between the converter element and the first coupling surface, the optical filter element being adjusted to the first wavelength.
-5. (canceled)
A motor vehicle, comprising:
- a headlamp including:
- a first semiconductor light source that, in operation, emits a primary radiation;
- a second semiconductor light source that, in operation, generates a second radiation having substantially a same wavelength as the primary radiation;
- an optical coupling device that, in operation, couples a first radiation and the second radiation, the optical coupling device includes a first and a second coupling surface;
- a converter element arranged in an optical path between the first semiconductor light source and the first coupling surface, the converter element configured to convert the primary radiation into a first radiation;
- and
- an optical filter element arranged between the converter element and the first coupling surface, the optical filter element being adjusted to a wavelength of the primary radiation.
A device, comprising:
- a first semiconductor light source that, in operation, emits a primary radiation having a first wavelength;
- a second semiconductor light source that, in operation, generates a second radiation having a second wavelength that is substantially the same as the first wavelength;
- an optical coupling device that, in operation, couples a first radiation and the second radiation, the optical coupling device having a first coupling surface and a second coupling surface;
- a converter element arranged in an optical path between the first semiconductor light source and the first coupling surface, the converter element, in operation, converting the primary radiation into a first radiation;
- and
- an optical filter element arranged in an optical path between the converter element and the first coupling surface, the optical filter element being adjusted to a wavelength of the primary radiation.
Dependencies are inferred from the claim text.