Method of supplying power to an automobile headlight lamp and headlight using that method
First Claim
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1. A power supply method of supplying power to a dual-mode automobile headlight light source able to provide either lighting in a main beam mode or lighting in a dipped beam mode, wherein said method comprises the step of:
- supplying the light source with electrical power at a first voltage when it is in main beam mode during which said light source emits a main beam of a first intensity;
supplying said light source with at a second voltage when it is in dipped beam mode during which said light beam emits a second beam of a lower intensity, the second voltage being lower than the first voltage; and
activating a cap or shutter to cause a cut-off of the second beam, thereby providing a dipped beam from said second beam.
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Abstract
A method and headlight adapted to supply power to a dual-mode automobile headlight light source able to provide either main beam mode lighting or dipped beam mode lighting, wherein the light source is supplied with electrical power at a first voltage when it is in main beam mode and at a second voltage when it is in dipped beam mode, the second voltage being lower than the first voltage.
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Citations
20 Claims
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1. A power supply method of supplying power to a dual-mode automobile headlight light source able to provide either lighting in a main beam mode or lighting in a dipped beam mode, wherein said method comprises the step of:
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supplying the light source with electrical power at a first voltage when it is in main beam mode during which said light source emits a main beam of a first intensity; supplying said light source with at a second voltage when it is in dipped beam mode during which said light beam emits a second beam of a lower intensity, the second voltage being lower than the first voltage; and activating a cap or shutter to cause a cut-off of the second beam, thereby providing a dipped beam from said second beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A headlight for automobile vehicles comprising:
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a light source associated with a lighting module generating a light beam, a removable cap, and power supply means for supplying a voltage to the light source, wherein the power supply means are adapted to generate alternately a first voltage when the headlight is in a main beam mode during which said light source emits a main beam of a first intensity and a second voltage, lower than the first voltage, when the headlight is in a dipped beam mode during which said light beam emits a second beam of a lower intensity; wherein said removable cap is adapted to be movable between a first position where said removable cap does not block said main beam or a second position wherein said removable cap partially blocks said second beam to produce a dipped beam. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification