ILLUMINATION DEVICE FOR A MOTOR VEHICLE AND MOTOR VEHICLE

• US 20120257403A1
• Filed: 04/06/2012
• Published: 10/11/2012
• Est. Priority Date: 04/08/2011
• Status: Abandoned Application

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: WILFERT, Ralf
• Application Number:
  US13/441,143
• Publication Number:
  US 20120257403A1
• Time in Patent Office: Days
• US Class Current: 362/516
• CPC Class Codes: B60Q 1/28 for indicating front of vehicle
• CPC Class Codes: B60Q 2400/30 Daytime running lights [DRL], e.g. circuits or arrangements therefor
• CPC Class Codes: F21S 43/239 plate-shaped
• CPC Class Codes: F21S 43/245 emitting light from one or more of its major surfaces
• CPC Class Codes: F21S 43/249 with two or more light sources being coupled into the light guide
• CPC Class Codes: F21S 43/251 the light guides being used to transmit light from remote light sources

Abstract

An illumination device includes, but is not limited to at least one light-conductor plate and at least one light source. The at least one light-conductor plate includes, but is not limited to a first main surface and a first lateral surface. In addition, the at least one light-conductor plate includes, but is not limited to light-decoupling elements at least in a part region of the volume of the at least one light-conductor plate. The at least one light-conductor plate is arranged in an outer region of the motor vehicle and forms a decorative shaped part of the motor vehicle. Light of the at least one light source can be coupled into the at least one light-conductor plate via the first lateral surface and can be at least partially decoupled from the at least one light-conductor plate with the light-decoupling elements via the first main surface.

Claims

1. An illumination device for a motor vehicle, comprising:

a light-conductor plate comprises a first main surface and a first lateral surface and light-decoupling elements at least in a part region of a volume of the light-conductor plate, the light-conductor plate is arranged in an outer region of the motor vehicle and forms a decorative shaped part of the motor vehicle; and

a light source configured for coupling into the light-conductor plate via the first lateral surface and with the light-decoupling elements, the light source configured for decoupling at least partially from the light-conductor plate with the light-decoupling elements via the first main surface.

2. The illumination device according to claim 1, wherein the light-conductor plate comprises polymethyl methacrylate (PMMA) and light-defusing nanoparticles as the light-decoupling elements.

3. The illumination device according to claim 1, wherein the light source is arranged adjacent to the first lateral surface.

4. The illumination device according to claim 1,

wherein the illumination device further comprises a light conductor,

wherein the light source is adjacent to the light conductor, and

wherein a light of the light source and configured to couple into the light-conductor plate with the light conductor.

5. The illumination device according to claim 1,

wherein the light-conductor plate additionally comprises a second main surface located opposite the first main surface, and

wherein the light-conductor plate comprises a reflector on the second main surface.

6. The illumination device according to claim 5, wherein the reflector comprises a semi-transparent coating.

7. The illumination device according to claim 1, wherein the light source is a light-emitting diode.

8. The illumination device according to claim 1, wherein the light-conductor plate has a polygon-shape.

9. The illumination device according to claim 1, wherein an arrangement density of the light-decoupling elements increases from the first lateral surface of the light-conductor plate in a direction of a second lateral surface of the light-conductor plate located opposite the first lateral surface.

10. The illumination device according to claim 9, wherein the illumination device is arranged in a front region of the motor vehicle.

11. The illumination device according to claim 10, wherein the illumination device is arranged adjacent to an air inlet opening for providing ambient air for a heat exchanger of the motor vehicle.

12. The illumination device according to claim 11, wherein the light-conductor plate surrounds the air inlet opening.

13. The motor vehicle according to claim 10, wherein the illumination device is configured to form a daytime running lamp of the motor vehicle.

14. The motor vehicle according to claim 12, wherein the illumination device is configured to form a parking light lamp of the motor vehicle.

15. The motor vehicle according to claim 12, wherein the illumination device is configured to form a stationary light lamp of the motor vehicle.