LIGHTING DEVICE FOR VEHICLES

• US 20190309923A1
• Filed: 06/21/2019
• Published: 10/10/2019
• Est. Priority Date: 12/21/2016
• Status: Active Grant

• Current Assignee: Hella Gmbh & Co. Kgaa (Forvia SE)
• Original Assignee: Hella Gmbh & Co. Kgaa (Forvia SE)
• Inventors: SCHALL, Hans-Christian
• Granted Patent: US 10,935,208 B2
• Time in Patent Office: Days
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/237 rod-shaped
• CPC Class Codes: F21S 43/245 emitting light from one or more of its major surfaces
• CPC Class Codes: F21S 43/247 with a single light source being coupled into the light guide
• CPC Class Codes: F21S 43/27 Attachment thereof
• CPC Class Codes: F21S 45/47 Passive cooling, e.g. using fins, thermal conductive elements or openings
• CPC Class Codes: G02B 6/0006 Coupling light into the fibre in general G02B6/4298

Abstract

A lighting device for vehicles with an elongate optical waveguide, with a light source associated with a first end of the optical waveguide, with a carrier plate bearing the light source and with a holder which is connected to the optical waveguide in an end region, wherein the optical waveguide is provided with an opaque casing at least in the end region, which has at least one fastener via which the optical waveguide is fastened to the holder.

Claims

1. A lighting device for a vehicle, the lighting device comprising:

an elongate optical waveguide;

a light source assigned to a first end of the optical waveguide;

a carrier plate bearing the light source; and

a holder connected to the optical waveguide in an end region,

wherein the optical waveguide, at least in the end region, is provided with an opaque casing that has at least one fastener via which the optical waveguide is fastened to the holder.

2. The lighting device according to claim 1, wherein the casing completely surrounds a peripheral surface of the optical waveguide in its end region.

3. The lighting device according to claim 1, wherein the opaque casing is fixedly connected to the optical waveguide.

4. The lighting device according to claim 1, wherein the casing is integrally connected to the optical waveguide or fixedly connected as a casing part to the optical waveguide.

5. The lighting device according to claim 4, wherein the casing part is formed integrally with a first casing part segment and a second casing part segment, which are interconnected in a first connection region by a film hinge, wherein the first casing part segment and the second casing part segment surround the optical waveguide in abutment with a peripheral surface of the same, wherein in a second connection region, the first casing part segment is non-positively and/or positively connected to the second casing part segment.

6. The lighting device according to claim 4, wherein the casing part is formed in two parts with a first casing part segment and a second casing part segment, wherein the first casing part segment is connected with the second casing part segment via a latching mechanism.

7. The lighting device according to claim 1, wherein the fastener of the casing is formed as a plurality of latching elements that are connectable with a latching arm of the holder.

8. The lighting device according to claim 1, wherein the casing on one inner side has a recess, in which a rib of the optical waveguide engages for the stationary retention of the optical waveguide with the casing.

9. The lighting device according to claim 1, wherein an edge of the casing facing the first end of the optical waveguide is arranged spaced from an end face of the optical waveguide and wherein the holder has a receiving element, which is offset in an axial direction to a base body of the holder for abutment with the end face of the optical waveguide.

10. The lighting device according to claim 1, wherein on a side facing away from the first end of the optical waveguide, the casing has a flange ring for receiving an extension casing.