Lighting device integrating pair of light functions with collimating elements associated with primary light sources and light guiding elements associated with secondary light sources

Patent metadata

Field	Value
Publication number	US-10746372-B2
Application number	US-201916283070-A
Country	US
Kind code	B2
Filing date	Feb 22, 2019
Priority date	Feb 23, 2018
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

The invention relates to a lighting device with a multiple light function, which comprises a primary light source and secondary light source ( 2 a, 2 b ) associated with optical elements which are adapted to guide light to the output of the device. The primary light source ( 2 a ) is associated with collimating elements ( 4 ) and the secondary light source ( 2 b ) is associated with light guiding elements ( 3 ), whereby the collimating elements ( 4 ) and the light guiding elements ( 3 ) are arranged in a common light guiding body (A), the output of the light beams is situated behind the level ( 6 ) of the exit ends of the collimating elements ( 4 ) and on the output side of light guiding body (A) a light scattering filter ( 7 ) is arranged.

First claim

The invention claimed is:

1. A lighting device with a multiple light function comprising:
a plurality of primary light sources for emitting light beams;
a plurality of secondary light source for emitting light beams;
optical elements adapted to receive and guide the light beams from the primary light sources and the secondary light sources, the optical elements including collimating elements associated with the primary light sources and light guiding elements associated with the secondary light sources, the collimating elements and the light guiding elements being arranged in a light guiding body, an output of the light beams from the light guiding elements being situated in a direction of light propagation beyond a level of exit ends of the collimating elements; and
a light scattering filter located to receive and scatter the light beams received from the optical elements.

2. The lighting device with a multiple light function according to claim 1 , wherein the light guiding body is a one-piece light guiding body including the collimating elements and the light guiding elements.

3. The lighting device with a multiple light function according to claim 1 , wherein the collimating elements are formed unitarily in the light guiding body, the light guiding body defining apertures between the collimating elements, the light guiding elements including separate elements located in the apertures, the light guiding elements each having an output surface configured as a circular end surface.

4. The lighting device with a multiple light function according to claim 1 , wherein the light guiding body is configured as a flat light guide having a rear portion on which the light guiding elements and the collimating elements are arranged, each of the collimating elements being associated with a respective one of the primary light sources and each of the light guiding elements being associated with a respective one of the secondary light sources, the light guiding elements being arranged on the rear portion so that longitudinal axes of the light guiding elements align with a plane of the flat light guide, the collimating elements being arranged on the rear portion so that longitudinal axes of the collimating elements align with reflective surfaces of the light guiding body for reflecting the light beams from the collimating elements into the plane of the flat light guide.

5. The lighting device with a multiple light function according to claim 1 , wherein the primary light sources and the secondary light sources are mounted on a common carrier.

6. The lighting device with a multiple light function according to claim 1 , wherein the primary light sources and the secondary light sources are mounted on a common carrier in a common plane.

7. The lighting device with a multiple light function according to claim 1 , wherein the primary light sources and the secondary light sources are mounted on separate carriers.

8. The lighting device with a multiple light function according to claim 1 , wherein the light guiding elements are each configured with a cylindrical shape.

9. The lighting device with a multiple light function according to claim 1 , wherein the light guiding elements are each configured with a frustoconical shape.

10. The lighting device with a multiple light function according to claim 1 , wherein the collimating elements are each configured with a rotational collimating reflective surface having a center with an input surface for receiving the light beams from a respective one of the primary light sources, the input surfaces each being configured as a hollow, slightly conical surface with a concave face.

11. The lighting device with a multiple light function according to claim 1 , wherein the primary light sources and the secondary light sources each include respective LED arrays arranged in a matrix.

Assignees

• Varroc Lighting Systems Sro

Inventors

• Sousek Pavel
• Socha Tomas
• Najdek David

Classifications

• F21S43/249 Primary

  with two or more light sources being coupled into the light guide · CPC title

• F21S43/239

  plate-shaped · CPC title

• F21S43/235

  Light guides · CPC title

• F21S43/255

  Filters · CPC title

• B60Q1/00

  Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor (for lighting vehicle interior B60Q3/00) · CPC title