Headlight for a vehicle
First Claim
1. A headlight for a vehicle, havinga reflector having a focal point and a center axis,a semiconductor light source in the area of the focal point of the reflector,a transparent lens, anda metal cooling element,wherein the cooling element firmly connected to the light source both mechanically and thermally, extends from the light source to the lens and is fixed in the lens by projecting into or passing through the lens.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a headlight 1 in particular based on the projection principle. The headlight has a semiconductor light source 4, which is arranged at the focal point of the reflector 2 and is connected to a cooling element 5. This cooling element 5 extends from the semiconductor light source 4 to the transparent lens 3, through which the light that is reflected by the reflector 2 is emitted, passes through the transparent lens 3, and projects beyond it. This arrangement of a semiconductor light source 4, a cooling element 5 and a transparent lens 3 ensures that the light source 4 is cooled effectively. In addition, the arrangement and the form of the cooling element 5 ensure that the cooling element 5 does not shadow, or only slightly shadows, the reflected light. This leads to a high light yield from the headlight 1 according to the invention, and to a long life.
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Citations
16 Claims
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1. A headlight for a vehicle, having
a reflector having a focal point and a center axis, a semiconductor light source in the area of the focal point of the reflector, a transparent lens, and a metal cooling element, wherein the cooling element firmly connected to the light source both mechanically and thermally, extends from the light source to the lens and is fixed in the lens by projecting into or passing through the lens.
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15. A headlight for a vehicle, having
a reflector having a focal point, a light source in the area of the focal point of the reflector, and a transparent lens, wherein the light source is a semiconductor light source which emits infrared radiation, and wherein a cooling element is provided which is thermally connected to the light source, extends from the light source to the lens and projects into the lens or passes through it, wherein the cooling element is sealed from the lens by means of an elastic sealing agent.
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16. A headlight for a vehicle, having
a reflector having a focal point, a light source in the area of the focal point of the reflector, and a transparent lens, wherein the light source is a semiconductor light source which emits infrared radiation, and wherein a cooling element is provided which is thermally connected to the light source, extends from the light source to the lens and projects into the lens or passes through it, wherein the power supply for the light source is provided via the cooling element.
Specification