IP Library Granted Patent US 10,208,912
Granted Patent B2
US 10,208,912 · App. 15/772,904 · Granted Feb 19, 2019

Headlight for a vehicle

Inventors: Lukas Taudt (Wieselburg, AT); Irmgard Krenn (Purgstall/Erlauf, AT); Josef Plank (Purgstall/Erlauf, AT)
Assignee: ZKW Group GmbH
F21S41/663B60Q1/04F21S41/143F21S41/24F21S41/25F21W2102/19
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Quick Facts
Patent No.
US 10,208,912
App. No.
15/772,904
Granted
Feb 19, 2019
Kind
B2
Abstract

A headlamp ( 1 ) for a vehicle, comprising at least one light source ( 2 ), a primary optical system ( 3 ) for generating a lighting image, and an optical imaging system ( 4 ), wherein the lighting image can be projected onto the roadway as a light image by means of the optical imaging system ( 4 ), and the primary optical system ( 3 ) has a plurality of light guiding elements ( 5 ) and a support layer ( 6 ), wherein the light guiding elements ( 5 ) are arranged on a rear face ( 6 r ) of the support layer ( 6 ), and the lighting image can be generated on a front face ( 6 v ) of the support layer ( 6 ), the light guiding elements ( 5 ) are arranged adjacently to one another or in an overlapping manner in a row in an axis direction (y) and form at least one line ( 7 ), wherein each light guiding element ( 5 ) has a light inlet surface ( 5 e ) for coupling in light from at least one light source ( 2 ) and a light outlet surface ( 5 a ) for coupling out light, wherein the totality of the light guiding elements ( 5 ) of the at least one line ( 7 ) have a common border ( 8 ) which is constantly curved on at least one face oriented substantially along the axis direction (y) and together with the support layer ( 6 ) forms a section curve with a curved curve course ( 9, 10 ).

Claims (17)

1. A headlamp ( 1 ) for a vehicle, comprising:

at least one light source ( 2 );

a primary optical system ( 3 ) for generating a lighting image; and

an optical imaging system ( 4 ) configured to project the lighting image onto a roadway as a light image,

wherein the primary optical system ( 3 ) has a plurality of light guiding elements ( 5 ) and a support layer ( 6 ), wherein the light guiding elements ( 5 ) are arranged on a rear face ( 6 r ) of the support layer ( 6 ), and the lighting image can be generated on a front face ( 6 v ) of the support layer ( 6 ),

wherein the light guiding elements ( 5 ) are arranged adjacently to one another or in an overlapping manner in a row in an axis direction (y) and form at least one line ( 7 ), wherein each light guiding element ( 5 ) has a light inlet surface ( 5 e ) for coupling in light from at least one light source ( 2 ) and a light outlet surface ( 5 a ) for coupling out light, and

wherein the totality of the light guiding elements ( 5 ) of the at least one line ( 7 ) have a common border ( 8 ) which is constantly curved on at least one face oriented substantially along the axis direction (y) and together with the support layer ( 6 ) forms a section curve with a curved curve course ( 9 , 10 ).

2. The headlamp ( 1 ) according to claim 1 , wherein the headlamp ( 1 ) comprises a plurality of parallel lines ( 7 , 7 a , 7 b ).

3. The headlamp ( 1 ) according to claim 2 , wherein the lines ( 7 , 7 a , 7 b ) are arranged horizontally or vertically oriented in an installed position in the vehicle.

4. The headlamp ( 1 ) according to claim 2 , wherein all lines ( 7 , 7 a , 7 b ) form a common border ( 8 a ), which is constantly curved on at least one face oriented in the axis direction (y) and together with the support layer ( 6 ) forms a section curve with a curved curve course ( 9 , 10 ).

5. The headlamp ( 1 ) according to claim 1 , wherein the curve course ( 9 , 10 ) follows a cosine function.

6. The headlamp ( 1 ) according to claim 1 , wherein the curve course ( 9 , 10 ) is a segment of a circle.

7. The headlamp ( 1 ) according to claim 1 , wherein the curve course ( 9 , 10 ) is a segment of an ellipse.

8. The headlamp ( 1 ) according to claim 1 , wherein the curve course ( 9 , 10 ) is a freely shaped line.

9. The headlamp ( 1 ) according to claim 1 , wherein the curve course ( 9 , 10 ) is a freely shaped line corresponding to a segment of a circle with increasing curvature.

10. The headlamp ( 1 ) according to claim 1 , wherein the border ( 8 , 8 a ) forms a curve course ( 9 , 10 ) on each of two faces and both curved curve courses ( 9 , 10 ), considered jointly, form a convex shape.

11. The headlamp ( 1 ) according to claim 1 , wherein at least one light source ( 2 ) is assigned to each light guiding element ( 5 ) or the associated light inlet surface ( 5 e ).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2018
From: TAUDT, LUKAS; KRENN, IRMGARD; PLANK, JOSEF
To: ZKW GROUP GMBH
Reel/Frame 045729/0344 →
Priority Claims (1)
AT A 51088/2015 · Dec 21, 2015 · national
Continuity (1)
Related Publication 20180328562A1 · Nov 15, 2018
Cited By (1)
US 12,449,106