Patent ID: 9731649
Date: 2017-08-15
CPC Classifications: B60Q,F21S,G02B

Claim:
1. A lighting device for a motor vehicle, comprising: a light guide for totally reflecting guidance of light from two light sources along a light propagation axis, wherein light is coupled in from one of the two light sources at a coupling face on one end face of the light guide, and light is coupled in from the other of the two light sources at another coupling face on another end face of the light guide, wherein the light guide further comprises a decoupling face arranged along the light propagation axis for decoupling light which exits from the light guide at an exit face arranged along the light propagation axis accompanied by cancelation of the total reflection condition, wherein the light guide is configured such that the light intensity distribution of light, exiting at the exit face, of at least one of the two light sources has a gradient in the propagation direction of the light from the at least one of the two light sources; and a control device configured to activate the two light sources in a prescribed switch-on time interval when the lighting device is switched on, and wherein the brightness of at least one of the two light sources is modified on the basis of a ramp and/or step profile until a prescribed brightness value is reached, such that a centroid of the overall light distribution resulting at the exit face from the light intensity distributions of the two light sources travels in the prescribed switch-on time interval along the light propagation axis to one of said coupling faces.