IP Library Granted Patent US 9,822,935
Granted Patent B2
US 9,822,935 · App. 14/662,298 · Granted Nov 21, 2017

Light source arrangement having a plurality of semiconductor laser light sources

Inventor: Martin Daniels (Berlin, DE)
Assignee: OSRAM GmbH
F21K9/52H01S5/4012F21W2101/10F21W2131/20F21W2131/406F21Y2115/10F21Y2115/30H01S5/005H01S5/0071
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Quick Facts
Patent No.
US 9,822,935
App. No.
14/662,298
Granted
Nov 21, 2017
Kind
B2
Abstract

A light source arrangement is provided. The light source arrangement may include a plurality of semiconductor laser light sources arranged in such a way that the laser light emitted by the semiconductor laser light sources is aligned in parallel, and a deflection unit configured to collect and influence all beam paths of the laser light emitted by the semiconductor laser light sources so as to form a beam. The deflection unit has a first mirror element with a concavely curved surface, which is embodied to capture and reflect the laser light emitted by the semiconductor laser light sources by the surface. The light source arrangement may further include a second mirror element with a convexly curved surface, which is embodied to capture and focus the laser light reflected by the first mirror element.

Claims (31)

1. A light source arrangement, comprising:

a plurality of semiconductor laser light sources arranged in such a way that the laser light emitted by the semiconductor laser light sources is aligned in parallel, and

a deflection unit configured to collect and influence all beam paths of the laser light emitted by the semiconductor laser light sources so as to form a beam,

wherein the deflection unit has a first mirror element with a concavely curved surface, which is embodied to capture and reflect the laser light emitted by the semiconductor laser light sources by the surface, and a second mirror element with a convexly curved surface, which is embodied to capture and focus the laser light reflected by the first mirror element,

wherein the first mirror element has a passage opening,

wherein an optical waveguide is arranged in the passage opening, said optical waveguide extending beyond the first mirror element, and

wherein the curvatures and the distance between the surfaces of the first and the second mirror element are embodied in such a way that a focus of the concavely curved surface coincides with a virtual focus of the convexly curved surface.

2. The light source arrangement of claim 1 ,

wherein the optical waveguide is arranged in the passage opening, said optical waveguide extending beyond the first mirror element on the rear side in relation to the concavely curved surface of the first mirror element.

3. The light source arrangement of claim 1 ,

wherein the second mirror element is embodied to focus the laser light reflected from the surface thereof into the passage opening.

4. The light source arrangement of claim 1 ,

wherein the optical waveguide projects beyond the concavely curved surface of the first mirror element in the direction of the second mirror element and the second mirror element is embodied to focus the laser light reflected from the surface thereof onto a coupling surface of the optical waveguide.

5. The light source arrangement of claim 1 ,

wherein a cross-sectional area of the passage opening is embodied in a manner matched to an arrangement of the semiconductor laser light sources.

6. The light source arrangement of claim 1 ,

wherein the deflection unit has a lens in the beam path between the semiconductor laser light sources and the first mirror element.

7. The light source arrangement of claim 6 ,

wherein the lens has an integral embodiment with the second mirror element.

8. The light source arrangement of claim 1 ,

wherein a distance between the semiconductor laser light sources and the concavely curved surface of the first mirror element is less than a distance between the convexly curved surface of the second mirror element and the concavely curved surface of the first mirror element.

9. A headlight/spotlight, comprising:

a housing having a light exit opening, and

a light source arrangement arranged in the housing,

the light source arrangement comprising:

a plurality of semiconductor laser light sources arranged in such a way that the laser light emitted by the semiconductor laser light sources is aligned in parallel, and

a deflection unit configured to collect and influence all beam paths of the laser light emitted by the semiconductor laser light sources so as to form a beam,

wherein the deflection unit has a first mirror element with a concavely curved surface, which is embodied to capture and reflect the laser light emitted by the semiconductor laser light sources by the surface, and a second mirror element with a convexly curved surface, which is embodied to capture and focus the laser light reflected by the first mirror element,

wherein the first mirror element has a passage opening,

wherein an optical waveguide is arranged in the passage opening, said optical waveguide extending beyond the first mirror element, and

wherein the curvatures and the distance between the surfaces of the first and the second mirror element are embodied in such a way that a focus of the concavely curved surface coincides with a virtual focus of the convexly curved surface.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2020
From: OSRAM GMBH
To: CORETRONIC CORPORATION
Reel/Frame 053348/0838 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 19, 2015
From: DANIELS, MARTIN
To: OSRAM GMBH
Reel/Frame 035864/0432 →
Priority Claims (1)
DE 10 2014 205 452 · Mar 24, 2014 · national
Continuity (1)
Related Publication 20150267878A1 · Sep 24, 2015