US 12,109,936 B2
Lighting device for a motor vehicle for creating a light animation
Werner Thomas, Münchsmünster (DE); and Reiner Lendle, Hassmersheim (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Appl. No. 17/604,108
Filed by Audi AG, Ingolstadt (DE)
PCT Filed Apr. 15, 2020, PCT No. PCT/EP2020/060628
§ 371(c)(1), (2) Date Dec. 30, 2021,
PCT Pub. No. WO2020/212449, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 10 2019 205 641.5 (DE), filed on Apr. 17, 2019.
Prior Publication US 2022/0194293 A1, Jun. 23, 2022
Int. Cl. B60Q 1/50 (2006.01); B60Q 1/26 (2006.01); B60Q 1/30 (2006.01); F21S 41/143 (2018.01); F21S 41/155 (2018.01); F21S 41/663 (2018.01); F21Y 115/15 (2016.01)
CPC B60Q 1/2607 (2013.01) [B60Q 1/507 (2022.05); B60Q 1/535 (2022.05); B60Q 1/543 (2022.05); B60Q 1/547 (2022.05); F21S 41/143 (2018.01); F21S 41/155 (2018.01); F21S 41/663 (2018.01); B60Q 2300/45 (2013.01); B60Q 2400/10 (2013.01); B60Q 2900/40 (2022.05); F21Y 2115/15 (2016.08)] 10 Claims
OG exemplary drawing
 
1. A lighting device for a motor vehicle for creating a light animation, comprising:
a light emission device for creating the light animation, the light emission device being subdivided into a plurality of segments; and
a control unit which is configured to:
separately control each of the plurality of segments of the light emission device;
control the plurality of segments differently at a plurality of points in time with respect to a photometric parameter relating to each of the plurality of segments in order to create and/or output the light animation;
apply a different current or voltage to each segment of the plurality of segments such that an average of the photometric parameter of the lighting device across the plurality of segments for the light animation is within a predefined interval;
determine a subset of the plurality of segments that forms a closed curve;
keep constant a first corresponding luminance of the subset of the plurality of segments that are assigned to the closed curve;
vary a second corresponding luminance of another subset of the plurality of segments that are assigned to an inner region of the closed curve for the light animation; and
use a control function to control each of the plurality of segments, wherein the control function describes a luminance of each of the plurality of segments at points in time and the predefined interval of the average photometric parameter wherein the predefined interval has a lower limit and an upper limit, and wherein the control function is a random function created using a random generator.