US Patent No. 10,716,180

LAMP WITH A YELLOW AND WITH A WHITE AND/OR BLUE LIGHT SOURCE GROUP


Patent No. 10,716,180
Issue Date July 14, 2020
Title Lamp With A Yellow And With A White And/or Blue Light Source Group
Inventorship Thomas Feil, Iggingen (DE)
Daniel Weissenberger, Giengen (DE)
Martin Petzold, Ellwangen (DE)
Assignee

Claim of US Patent No. 10,716,180

1. A lamp for a headlamp, the lamp comprising:at least two light source groups each including at least one controllable light source;
wherein the light sources of one light source group are set up for emitting yellow light;
wherein the light sources of another light source group are set up for emitting at least one of white or blue light;
wherein at least the light sources of the at least two light source groups are arranged for producing light that is collectively emittable;
further comprising a control unit;
wherein the lamp is configured to control at least the light sources of the at least two light source groups using the control unit;
wherein the light sources of the one light source group are controllable as a first subset and the light sources of the another light source group are controllable as a second subset; and
further comprising a storage unit containing a non-volatile stored information;
wherein the control unit is configured to control at least the light sources of the at least two light source groups in accordance with the stored non-volatile information in the storage unit;
wherein the lamp further comprises a sensor interface configured to receive at least one sensor signal; and
wherein the control unit is configured to control at least the light sources of the at least two light source groups in accordance with the at least one sensor signal;
wherein the lamp is configured to control a color point shift of emitted light using the at least two light source groups during the operation at least one of according to or proportionally to a state variable;
wherein the state variable comprises a parameter indicative of at least one of a degree of visibility during fog, a driving speed, or a vehicle position.