Vehicle Light

• US 20080062710A1
• Filed: 10/18/2005
• Published: 03/13/2008
• Est. Priority Date: 10/28/2004
• Status: Active Grant

• Current Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Stanitzok, Ewald, Haack, Albrecht
• Granted Patent: US 7,614,768 B2
• Time in Patent Office: Days
• US Class Current: 362/541
• CPC Class Codes: B60Q 1/302 mounted in the vicinity, e.g. in the middle, of a rear window
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/239 plate-shaped
• CPC Class Codes: F21S 43/243 emitting light from one or more of its extremities
• CPC Class Codes: F21S 43/249 with two or more light sources being coupled into the light guide
• CPC Class Codes: F21S 43/30 characterised by reflectors

Abstract

The invention relates to a vehicle light, in particular a brake light a brake light, comprising at least one light source and a light guiding device wherein the light emitted by the light source can be injected and which comprises decoupling means for decoupling the light or a part thereof. Deviation means are arranged between the light source and the decoupling means in such a manner that the light is expanded and parallelised within the light guiding device.

Claims

1. Vehicle light, in particular brake light, having at least one light source and a light guide device into which light emitted by the light source can be directed and which possesses output means for outputting the light or a portion thereof, wherein between the light source and the output means diverting means are provided in such a way that inside the light guide device widening and parallelisation of the light takes place.

2. Vehicle light according to claim 1, characterised in that the light guide device has a plate-shaped basic form.

3. Vehicle light according to claim 1 or 2, characterised in that the diverting means are constructed for the multiple, in particular twofold, diversion of the light.

4. Vehicle light according to any of the preceding claims, characterised in that the diverting means comprise at least one incision constructed on the light guide device which defines internal reflection surfaces for diverting the light.

5. Vehicle light according to claim 4, characterised in that the incision extends all the way through the light guide device.

6. Vehicle light according to claim 4 or 5, characterised in that for each light source a plurality, in particular three, incisions are provided which are arranged with mirror symmetry with respect to a central plane.

7. Vehicle light according to any of claims 4 to 6, characterised in that a first incision arranged in the main beam direction of the light source possesses front internal reflection surfaces by means of which light emitted substantially in the main beam direction of the light source is laterally divertable.

8. Vehicle light according to any of claims 4 to 7, characterised in that a second and third incision each arranged outside the main beam direction of the light source each have a front and/or rear internal reflection surface, wherein by means of the front internal reflection surfaces light whose beam direction is inclined at an angle differing from zero to the main beam direction of the light source is laterally divertable and/or due to the rear internal reflection surfaces light already diverted laterally previously is divertable in the main beam direction of the light source.

9. Vehicle light according to any of the preceding claims, characterised in that an outer surface, in particular an end face of the light guide device, has external reflection surfaces for diverting the light which form part of the diverting means.

10. Vehicle light according to claim 9, characterised in that by means of the external reflection surfaces light already diverted laterally previously is divertable in the main beam direction of the light source.

11. Vehicle light according to claim 9 or 10, characterised in that the external reflection surfaces are arranged like a cascade or steps.

12. Vehicle light according to any of claims 9 to 11, characterised in that the external reflection surfaces each associated with a light source are arranged with mirror symmetry with respect to a central plane.

13. Vehicle light according to any of the preceding claims, characterised in that the diverting means are arranged in such a way that the widening and parallelisation of the light takes place substantially in a plane.

14. Vehicle light according to any of the preceding claims, characterised in that a plurality of light sources are arranged in a row running parallel to at least one reflection surface of the output means.

15. Vehicle light according to any of the preceding claims, characterised in that reflection surfaces for diverting the light are constructed as part of prisms or facets or prism-like or facet-like depressions.

16. Vehicle light according to any of the preceding claims characterised in that the light guide device is simultaneously constructed as a housing part, in particular a housing half shell.