Headlight for a motor vehicle

Patent metadata

Field	Value
Publication number	US-2016243979-A1
Application number	US-201615052301-A
Country	US
Kind code	A1
Filing date	Feb 24, 2016
Priority date	Feb 24, 2015
Publication date	Aug 25, 2016
Grant date	—

Abstract

A headlight for a motor vehicle includes at least two light sources and a driver, which is arranged to vary the light intensities of the light sources with a phase shift to one another periodically between a minimum and a maximum and in the course of a period to set intermediate values between the maximum and the minimum. In a phase of the period, in which the first light source reaches the maximum of its light intensity, the light intensity of the second light source is situated at an intermediate value and increases.

First claim

1 - 12 . (canceled)

13 . A headlight for a motor vehicle comprising:
a first light source having a first light intensity; a second light source having a second light intensity; and a driver configured to vary the first and second light intensities with a phase shift to one another periodically between a minimum value and a maximum value, and in the course of a period to set intermediate values between the maximum value and the minimum value, wherein in a phase of the period in which the first light intensity reaches the maximum value, the second light intensity is set at an intermediate value increasing to the maximum value.

14 . The headlight according to claim 13 , wherein the second light source is positioned closer to an edge of the headlight than the first light source.

15 . The headlight according to claim 13 , wherein the driver is configured to switch over the first and second light intensities simultaneously to the minimum value.

16 . The headlight according to claim 15 , wherein the driver is configured to switch over the first and second light intensities when the second light intensity reaches the maximum value.

17 . The headlight according to claim 15 , wherein the driver is configured to switch over the first light intensity at an intermediate value at the moment of the switchover.

18 . The headlight according to claim 13 , wherein at least one of the first and second light sources is configured to be switched over between the emission of colored light and the emission of white light.

19 . The headlight according to claim 18 , wherein at least one of the first and second light sources comprises an illuminant producing colored light and an illuminant producing white light.

20 . The headlight according to claim 18 , wherein at least one of the first and second light sources comprises an illuminant producing at least one colored light and at least one complementary illuminant, the light of which is able to be superimposed with the colored light to white light.

21 . The headlight according to claim 20 , wherein at least one of the first and second light sources comprises a diffuser which is beamed at by at least one of the illuminant and the complementary illuminant.

22 . The headlight according to claim 13 , further comprising a third light source emitting of white light or red light.

23 . The headlight according to claim 22 which, viewed from the direction of a beam emitted from the third light source, comprises a main region, via which the third light source emits, a first edge region, via which the first light source emits, and a second edge region, via which the second light source emits.

24 . The headlight according to claim 23 , wherein the first edge region extends between the main region and the second edge region.

25 . The headlight according to claim 24 , wherein at least one of the first and second light sources comprises a diffuser extending along one of the first and second edge regions.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Langkabel Frank
• Haberkorn Rouven
• Roeckl Philipp
• Bach Michael
• Schneider Ralph
• Schneider Ingolf

Classifications

• F21W2103/25

  for rear-view mirrors · CPC title

• H05B45/10

  Controlling the intensity of the light · CPC title

• B60Q1/0041 Primary

  of several lamps in relation to each other · CPC title

• B60Q1/28

  for indicating front of vehicle · CPC title

• F21S43/237

  rod-shaped · CPC title