# US 10,309,603 B2 · Dual-function low-high beam lighting module for a motor vehicle

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- Number: US 10,309,603 B2
- Document ID: US10309603B2
- Status: Granted
- Kind: B2
- Application number: 15/149,365
- Filed: 2016-05-09
- Published: 2016-11-17
- Granted: 2019-06-04
- Earliest claimed: 2015-05-13
- Assignees: Valeo Vision
- Applicants: Valeo Vision
- Inventors: Jean-Luc Meyrenaud; Paul Racine; Ziyed Thabet
- Web page: https://patentgrep.com/patent/US10309603B2

## CPC

- F21S 41/26: Elongated lenses
- F21S 41/27: Thick lenses
- B60Q 1/1407: {General lighting circuits comprising dimming circuits}
- B60Q 1/16: illuminating the way asymmetrically
- F21S 41/143: the main emission direction of the LED being parallel to the optical axis of the illuminating device
- F21S 41/24: Light guides
- F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162)
- F21W 2102/155: having inclined and horizontal cutoff lines
- F21W 2103/55: Daytime running lights [DRL]
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS

## Abstract

A lighting module for a motor vehicle headlight intended to produce a low beam having an at least partly oblique cut-off. This same module further comprises an additional lighting function making it possible to generate a high type beam, the dimensions of the lighting module remaining identical. The light sources of the two respective low and high beam functions are arranged in a vicinity of the focus of an optical portion of the module such that the lighting module remains compact.

## Claims

### Claim 1

A lighting module for a motor vehicle, comprising:
an optical element to produce at least one first beam exhibiting an at least partly oblique cut-off, the optical element comprising at least one first optical portion having an optical axis and a focus,
at least one first light source, the at least one first light source being arranged at the focus for emitting first light rays toward the optical element to produce the at least one first beam, and
a second light source, the second light source being arranged at a distance from the focus, and not overlapping the focus, and offset downward relative to the at least one first light source on a vertical axis, the second light source emitting second light rays toward the optical element to produce a second beam at least partially lighting above the at least partly oblique cut-off, an optical beam formed by overlapping of the first beam with the second beam exhibiting no cut-off.

### Claim 2 (depends on 1)

The lighting module according to claim 1, wherein the second light source is offset relative to the at least one first light source on a transverse axis.

### Claim 3 (depends on 1)

The lighting module according to claim 1, wherein the at least one first light source exhibits a light emission zone comprising an edge, the edge being arranged at the focus of the at least one first optical portion of the optical element.

### Claim 4 (depends on 3)

The lighting module according to claim 3, wherein the at least one first light source is oriented facing the optical element such that the edge is an oblique edge.

### Claim 5 (depends on 4)

The lighting module according to claim 4, wherein the second light source is oriented facing the optical element identically to the at least one orientation of the first light source facing the optical element.

### Claim 6 (depends on 1)

The lighting module according to claim 1, wherein a low-type beam, comprising the at least one first beam, is generated when the at least one first light source is switched on, the second light source being switched off.

### Claim 7 (depends on 1)

The lighting module according to claim 1, wherein a high-type beam, comprising a superpositioning or a juxtapositioning of the at least one first beam and the second beam, is generated when the at least one first light source and the second light source are switched on.

### Claim 8 (depends on 1)

The lighting module according to claim 1, wherein a beam of daytime running light type is generated when the second light source is switched on while being powered using an electrical power lower than that needed to generate the second beam, the at least one first light source being switched off.

### Claim 9 (depends on 1)

The lighting module according to claim 1, wherein a distance between the at least one first light source and the second light source is less than or equal to a fraction of the focal distance of the at least one first optical portion.

### Claim 10 (depends on 1)

The lighting module according to claim 1, wherein the at least one first light source and the second light source each comprise a semiconductive light-emitting chip that can be selectively activated.

### Claim 11 (depends on 10)

The lighting module according to claim 10, wherein the at least one first light source and the second light source are formed by a same light-emitting diode of dual-chip type.

### Claim 12 (depends on 1)

The lighting module according to claim 1, wherein the at least one first light source and the second light source are formed by a matrix of diodes comprising at least two diodes each forming one of the at least one first light source and the second light source.

### Claim 13 (depends on 1)

The lighting module according to claim 1, wherein the at least one first optical portion is a lens.

### Claim 14 (depends on 1)

The lighting module according to claim 1, wherein a material of the at least one first optical portion is PVC, glass, polycarbonate, or PMMA.

### Claim 15 (depends on 1)

The lighting module according to claim 1, wherein the at least one first beam forms part of a low-type beam and wherein the optical element comprises at least one second optical portion having an optical axis, a focus, and a third light source arranged in a vicinity of the focus of the at least one second optical portion to produce the second beam forming part of the low-type beam.

### Claim 16

A lighting module for a motor vehicle, comprising:
an optical element to produce at least one first beam exhibiting an at least partly oblique cut-off, the optical element comprising at least one first optical portion having an optical axis and a focus,
at least one first light source, the at least one first light source being arranged at the focus for emitting first light rays toward the optical element to produce the at least one first beam, and
a second light source, the second light source being arranged at a distance from the focus, and not overlapping the focus, and offset relative to the at least one first light source on or near a vertical axis, the second light source emitting second light rays toward the optical element to produce a second beam at least partially lighting above the at least partly oblique cut-off, an optical beam formed by overlapping of the first beam with the second beam exhibiting no cut-off.

### Claim 17 (depends on 16)

The lighting module according to claim 16, wherein the second light source is offset relative to the at least one first light source on a transverse axis.

### Claim 18 (depends on 16)

The lighting module according to claim 16, wherein the at least one first light source exhibits a light emission zone comprising an edge, the edge being arranged at the focus of the at least one first optical portion of the optical element.

### Claim 19 (depends on 18)

The lighting module according to claim 18, wherein the at least one first light source is oriented facing the optical element such that the edge is an oblique edge.

### Claim 20 (depends on 19)

The lighting module according to claim 19, wherein the second light source is oriented facing the optical element identically to the orientation of the at least one first light source facing the optical element.
