Primary optical unit, secondary optical unit, module, arrangement, vehicle headlight, and headlight system

Patent metadata

Field	Value
Publication number	US-10962187-B2
Application number	US-201715825189-A
Country	US
Kind code	B2
Filing date	Nov 29, 2017
Priority date	Dec 1, 2016
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

In various embodiments, an optical unit for a radiation source matrix is provided. The optical unit may include a plurality of coupling surfaces, which are arranged in at least one line, and at least one decoupling surface. At least one coupling surface, which is arranged at a line end of the line formed by the coupling surfaces arranged in at least one line, is widened when viewed in the direction of the at least one line.

First claim

What is claimed is:

1. A headlight, comprising:
a module, comprising:
a radiation source matrix; and
an optical unit, comprising:
a plurality of light-transmissive optical coupling surfaces ( 30 - 42 ) positioned in light-receiving relation to the radiation source matrix ( 6 ), which are arranged in at least one line, the plurality comprising at least three optical coupling surfaces ( 30 - 42 ) of which at least one intermediate optical coupling surface ( 32 - 40 ) is positioned at an intermediate location between line ends of the at least one line; and
at least one optical decoupling surface;
wherein each of two terminal said optical coupling surfaces ( 30 , 42 ), which is arranged at a respective line end of the line formed by the plurality of coupling surfaces arranged in at least one line, is wider, when viewed in a direction of the at least one line, than the at least one intermediate optical coupling surface ( 32 - 40 ).

2. The headlight as claimed in claim 1 , wherein the at least one decoupling surface ( 48 ) is configured oblong along the at least one line and asymmetrically transverse to the at least one line.

3. A headlight, comprising:
an arrangement, comprising:
at least two groups, which each have a radiation source matrix, from each of which a primary optical unit is connected downstream, the primary optical unit comprising:
a plurality of light-transmissive optical coupling surfaces ( 30 - 42 ) positioned in light-receiving relation to the radiation source matrix ( 6 ), which are arranged in at least one line, the plurality comprising at least three optical coupling surfaces ( 30 - 42 ) of which at least one intermediate optical coupling surface ( 32 - 40 ) is positioned at an intermediate location between line ends of the at least one line; and
at least one optical decoupling surface;
wherein each of two terminal said optical coupling surfaces ( 30 , 42 ), which is arranged at a respective line end of the line formed by the plurality of coupling surfaces arranged in at least one line, is wider, when viewed in a direction of the at least one line, than the at least one intermediate optical coupling surface ( 32 - 40 );

and from each of which a secondary optical unit is connected downstream, the secondary optical unit comprising:
a light-transmissive optical coupling surface and an optical decoupling surface, wherein at least one of the optical coupling surface or the decoupling surface has a structure, using which transitions between radiation sources are smoothed;

wherein light images of the groups are superimposed.

4. The headlight as claimed in claim 3 , wherein the at least one decoupling surface ( 48 ) is configured oblong along the at least one line and asymmetrically transverse to the at least one line.

5. A headlight system for a vehicle, the headlight system comprising:
a left headlight and a right headlight, each headlight comprising:
a module, comprising:
a radiation source matrix; and
an optical unit, comprising:
a plurality of light-transmissive optical coupling surfaces ( 30 - 42 ) positioned in light-receiving relation to the radiation source matrix ( 6 ), which are arranged in at least one line, the plurality comprising at least three optical coupling surfaces ( 30 - 42 ) of which at least one intermediate optical coupling surface ( 32 - 40 ) is positioned at an intermediate location between line ends of the at least one line; and
at least one optical decoupling surface;
wherein each of two terminal said optical coupling surfaces ( 30 , 42 ), which is arranged at a respective line end of the line formed by the plurality of coupling surfaces arranged in at least one line, is wider, when viewed in a direction of the at least one line, than the at least one intermediate optical coupling surface ( 32 - 40 );
wherein an illuminated angle ranges of the middle optical coupling surfaces of the module of the left headlight overlap with the illuminated angle ranges of the middle optical coupling surfaces of the module of the right headlight.

6. The headlight system as claimed in claim 5 ,
wherein the overlap occurs congruently or wherein the overlap occurs with an offset.

7. The headlight system as claimed in claim 5 ,
wherein the overlap occurs congruently or wherein the overlap occurs with an offset in the horizontal direction.

8. The headlight system as claimed in claim 5 , wherein the at least one decoupling surface ( 48 ) is configured oblong along the at least one line and asymmetrically transverse to the at least one line.

9. A headlight system for a vehicle, the headlight system comprising:
a left headlight and a right headlight, each headlight comprising:
an arrangement, comprising:
at least two groups, which each have a radiation source matrix, from each of which a primary optical unit is connected downstream, the primary optical unit comprising:
a plurality of light-transmissive optical coupling surfaces, ( 30 - 42 ) positioned in light-receiving relation to the radiation source matrix ( 6 ), which are arranged in at least one line, the plurality comprising at least three optical coupling surfaces ( 30 - 42 ) of which at least one intermediate optical coupling surface ( 32 - 40 ) is positioned at an intermediate location between line ends of the at least one line; and
at least one optical decoupling surface;
wherein each of two terminal said optical coupling surfaces ( 30 , 42 ), which is arranged at a respective line end of the line formed by the plurality of coupling surfaces arranged in at least one line, is wider, when viewed in a direction of the at least one line, than the at least one intermediate optical coupling surface ( 32 - 40 );
and from each of which a secondary optical unit is connected downstream, the secondary optical unit comprising:
a light-transmissive optical coupling surface and an optical decoupling surface, wherein at least one of the optical coupling surface or the decoupling surface has a structure, using which transitions between radiation sources are smoothed;

wherein light images of the groups are superimposed;
wherein an illuminated angle ranges of the middle optical coupling surfaces of the arrangement of the left headlight overlap with the illuminated angle ranges of the middle optical coupling surfaces of the arrangement of the right headlight.

10. The headlight system as claimed in claim 9 ,
wherein the overlap occurs congruently or wherein the overlap occurs with an offset.

11. The headlight system as claimed in claim 9 , wherein the at least one decoupling surface ( 48 ) of each primary optical unit is configured oblong along the at least one line and asymmetrically transverse to the at least one line.

Assignees

• Osram Gmbh
• Osram Beteiligungsverwaltung Gmbh

Inventors

• Feil Thomas
• Hartmann Andreas
• Pappelheim Eugen

Classifications

• F21S41/26

  Elongated lenses · CPC title

• F21W2102/145

  wherein the light is emitted between two parallel vertical cutoff lines, e.g. selectively emitted rectangular-shaped high beam · CPC title

• F21S41/151

  arranged in one or more lines · CPC title

• F21S41/663

  by switching light sources (by switching incandescent light sources F21S41/162) · CPC title

• F21S41/322

  the reflector using total internal reflection · CPC title