Laser lighting device

Patent metadata

Field	Value
Publication number	US-10113706-B2
Application number	US-201414908224-A
Country	US
Kind code	B2
Filing date	Aug 13, 2014
Priority date	Sep 19, 2013
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

A lighting device with a laser light source, a deflecting reflector positioned at an angle to the laser light source, and a lens for focusing light from the laser light source to the deflecting reflector. In another embodiment, the lighting device includes only the laser light source and a lens arranged in the main radiation direction in front of the laser light source.

First claim

The invention claimed is:

1. A lighting device for vehicles, comprising:
a laser light source;
an upstream light conducting device for generating a predetermined lighting function, said light conducting device including
a reflector positioned at an angle to the laser light source for deflecting light from the laser light source towards a main radiation direction, a focusing lens for focusing the light of the laser light source in the direction of the reflector, and a light guide for conducting light to generate a further light function, wherein the laser light source and the reflector are arranged in the main radiation direction behind the light guide, such that the light emitted by said laser light source passes through the light guide; and wherein the reflector is formed elongated and narrow, wherein it has a width of less than 6 mm.

2. A lighting device for vehicles, comprising:
a laser light source;
an upstream light conducting device for generating a predetermined lighting function, said light conducting device including
a reflector positioned at an angle to the laser light source for deflecting light from the laser light source towards a main radiation direction, a focusing lens for focusing the light of the laser light source in the direction of the reflector, and a light guide for conducting light to generate a further light function, wherein the laser light source and the reflector are arranged in the main radiation direction behind the light guide, such that the light emitted by said laser light source passes through the light guide; and wherein the reflector has a length of 30 mm to 50 mm.

3. A lighting device for vehicles, comprising:
a laser light source;
an upstream light conducting device for generating a predetermined lighting function, said light conducting device including
a reflector positioned at an angle to the laser light source for deflecting light from the laser light source towards a main radiation direction, a focusing lens for focusing the light of the laser light source in the direction of the reflector, and a light guide for conducting light to generate a further light function, wherein the laser light source and the reflector are arranged in the main radiation direction behind the light guide, such that the light emitted by said laser light source passes through the light guide; and wherein the laser light source and the reflector are mounted on a common support body, which is mountable on a housing of the lighting device.

4. The lighting device according to claim 3 , wherein the support body includes at least a first and a second leg arranged at an angle to one another, wherein the reflector is attached to the first leg and the laser light source to the second leg.

5. The lighting device according to claim 4 , wherein the second leg of the support body comprises a snap-off end to which is fixed the laser light source.

6. A lighting device for vehicles, comprising:
a laser light source;
an upstream light conducting device for generating a predetermined lighting function, said light conducting device including:
a reflector positioned at an angle to the laser light source for deflecting light from the laser light source towards a main radiation direction, a focusing lens for focusing the light of the laser light source in the direction of the reflector, and a light guide for conducting light to generate a further light function, wherein the laser light source and the reflector are arranged in the main radiation direction behind the light guide, such that the light emitted by said laser light source passes through the light guide; and
wherein between the light conductor and the reflector is provided an anti-glare frame surrounding the reflector with a recess, through which the light reflected by the reflector is released in the direction of the light guide.

7. The lighting device according to claim 6 , wherein the recess of the anti-glare frames comprises narrow sides pointing to the reflector at an angle, wherein a long narrow side has a formation for the passage of light emitted by the laser light source toward the reflector.

8. The lighting device according to claim 6 wherein the laser light source is formed as a single laser diode.

9. The lighting device according to claim 6 , including the primary lens, wherein the primary lens is arranged integrated in an optical disc of the light conducting device, wherein the primary lens is designed such that the light is scattered for generating a fog light function or that the light is focused onto the reflector.

10. The lighting device according to claim 9 , including the primary lens, wherein the primary lens is arranged on at least one of a first flat side and on a second flat side of the optical disc.

11. The lighting device according to claim 9 wherein the light conducting device comprises only the optical disc which is arranged in the main radiation direction (H) of the lighting device in front of the laser light source.

Assignees

• Hella Kgaa Hueck & Co
• Hella Gmbh & Co Kgaa

Inventors

• Mügge Martin

Classifications

• F21W2103/00

  Exterior vehicle lighting devices for signalling purposes · CPC title

• F21S43/19

  Attachment of light sources or lamp holders · CPC title

• F21S43/13

  characterised by the type of light source · CPC title

• F21S43/50

  characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers · CPC title

• F21S43/40

  characterised by the combination of reflectors and refractors · CPC title