Compact multiple beam type vehicle light system
View Patent ↗The invention relates to a vehicle light system comprising a laser device for generating a laser beam, further comprising a light output module provided with a phosphor element for emitting a light beam upon incidence of the generated laser beam and provided with an optical element associated with the phosphor element for producing a light output beam. Furthermore, the light system comprises a further light output module provided with a corresponding further phosphor element and a second optical element. The laser device is arranged to switch between a first state, in which the generated laser beam is directed to the phosphor element, and a second state in which the generated laser beam is directed to the further phosphor element.
1. A vehicle light system, comprising
a laser device for generating a laser beam,
a light output module provided with a phosphor element for emitting a light beam upon incidence of the generated laser beam and provided with an optical element associated with the phosphor element for producing a light output beam,
a further light output module provided with a corresponding further phosphor element and a further optical element,
wherein the laser device is arranged to switch between a first state, in which the generated laser beam is directed to the phosphor element, and a second state in which the generated laser beam is directed to the further phosphor element.
2. A vehicle light system according to claim 1 , wherein the laser device comprises an optical switch for changing the direction and/or position of the laser beam.
3. A vehicle light system according to claim 1 , comprising a plurality of light output modules provided with a phosphor element for emitting a light beam upon incidence of the generated laser beam and provided with an optical element associated with the phosphor element for producing a light output beam, wherein the laser device is arranged to switch the direction and/or position of the generated laser beam towards a phosphor element of a selected light output module.
4. A vehicle light system according to claim 1 , comprising a single laser device.
5. A vehicle light system according to claim 1 , wherein the phosphor element of an output module is arranged to emit a yellow-orange broadband light beam upon incidence of a blue light laser beam leading to white light.
6. A vehicle light system according to claim 1 , wherein the phosphor element of an output module is arranged to emit red, green and blue light upon incidence of a blue, violet or UV laser beam.
7. A vehicle light system according to claim 1 , wherein the output beam shape of the optical element provided with a first light output module differs from the output beam shape of the optical element provided with a second light output module.
8. A vehicle light system according to claim 1 , wherein the output beam direction of the optical element provided with a first light output module differs from the output beam direction of the optical element provided with a second light output module.
9. A vehicle light system according to claim 1 , further comprising an automotive control system.
10. An illumination system for a vehicle, comprising a control system, a vehicle light system and a sensor connected to the control system, wherein the control system is arranged to generate a vehicle light system control signal in dependence upon a parameter measured by the sensor.
11. A method of controlling a vehicle light system, the method comprising the steps of: switching a laser device between a first state, in which a laser beam generated by the laser device is directed to a phosphor element provided in a first light output module, and a second state, in which the generated laser beam is directed to the phosphor element provided in a second light output module, the phosphor elements being arranged to emit a light beam upon incidence of the generated laser beam, and the light output modules being further provided with an optical element for producing a light output beam.