# US 10,480,744 B2 · Lighting system for motor vehicles

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- Number: US 10,480,744 B2
- Document ID: US10480744B2
- Status: Granted
- Kind: B2
- Application number: 15/759,905
- Filed: 2016-09-14
- Published: 2018-08-23
- Granted: 2019-11-19
- Earliest claimed: 2015-09-14
- Assignees: Valeo Vision
- Applicants: Valeo Vision
- Inventors: Marine Courcier; Vanesa Sanchez; Xavier Morel; Jean-Luc Meyrenaud; Stephan Sommerschuh; Weicheng Luo; Hafid El Idrissi
- Web page: https://patentgrep.com/patent/US10480744B2

## CPC

- F21S 41/675: by moving reflectors
- B60Q 1/085: {due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers (B60Q1/10, B60Q1/12, B60Q1/1423 take precedence)}
- F21S 41/141: Light emitting diodes [LED]
- F21S 41/321: {the reflector being a surface of revolution or a planar surface, e.g. truncated}
- F21S 41/365: successively reflecting the light
- F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162)
- B60Q 2300/312: Adverse weather
- B60Q 2400/50: Projected symbol or information, e.g. onto the road or car body
- F21W 2102/19: for curves
- F21W 2102/20: Illuminance distribution within the emitted light
- F21Y 2115/10: Light-emitting diodes [LED]
- 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
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

A motor-vehicle lighting system including a device for projecting a low beam into a projection zone, wherein the projecting device is configured so that the low beam includes a zone of lesser illumination located in the interior of the projection zone. A preferred application is the field of lighting equipment for motor vehicles.

## Claims

### Claim 1

A motor-vehicle lighting system comprising:
a device for projecting a low beam into a projection zone, wherein the projecting device is configured so that the low beam comprises an interior zone within the projection zone having an average luminance lower than that of a remainder of the projection zone located in an interior of the projection zone, and
a device for projecting an additional beam configured to at least partially cover the interior zone.

### Claim 2 (depends on 1)

The lighting system as claimed in claim 1, wherein the interior zone comprises an upper limit that is angularly offset with respect to an upper limit of the low beam by an angular value of at least 5° with respect to a point of emission of the low beam.

### Claim 3 (depends on 1)

The system as claimed in claim 1, wherein the interior zone is symmetric with respect to a vertical plane passing through an optical axis of the device for projecting the low beam.

### Claim 4 (depends on 1)

The system as claimed in claim 1, wherein the interior zone covers an angular sector of less than 10° in horizontal cross section.

### Claim 5 (depends on 1)

The system as claimed in claim 1, wherein the average luminance in the interior zone is lower by at least 70% than the average luminance in the remainder of the projection zone of the low beam.

### Claim 6 (depends on 1)

A motor-vehicle equipped with at least one system as claimed in claim 1.

### Claim 7

A motor-vehicle lighting system comprising
a device for projecting a low beam into a projection zone, wherein the projecting device is configured so that the low beam comprises an interior zone having an average luminance lower than that of the remainder of the projection zone located in an interior of the projection zone, and
a device for projecting an additional beam of pixelized rays and configured to at least partially cover the interior zone.

### Claim 8 (depends on 7)

The system as claimed in claim 7, wherein the additional beam is configured to produce an outline of at least one pictogram.

### Claim 9 (depends on 7)

The system as claimed in claim 7, wherein the interior zone is entirely covered by the additional beam.

### Claim 10 (depends on 7)

The system as claimed in claim 7, wherein the device for projecting an additional beam comprises a micromirror-array system.

### Claim 11

A motor-vehicle lighting system including a device for projecting a low beam into a projection zone, wherein:
the projecting device is configured so that the low beam comprises an interior zone having an average luminance less than that of a remainder of the projection zone located in an interior of the projection zone, and
the device for projecting the low beam includes at least a plurality of modules that are each able to produce a sub-beam that participates in the low beam.

### Claim 12 (depends on 11)

The system as claimed in claim 11, wherein the plurality of modules comprises at least one first group of at least one module located on a first side of the optical axis of the device for projecting the low beam, and a second group of at least one module located on a second side of said optical axis.

### Claim 13 (depends on 12)

The system as claimed in claim 12, wherein the first group is configured to illuminate only the first side of the optical axis and the second group is configured to illuminate only the second side of the optical axis.

### Claim 14 (depends on 13)

The system as claimed in claim 13, wherein the first group is configured to produce a beam comprising a segment of lesser illumination on a lateral beam edge located on the first side of the optical axis and the second group is configured to produce a beam comprising a segment of lesser illumination on a lateral beam edge located on the second side of the optical axis, the segments of lesser illumination participating to form the interior zone.

### Claim 15 (depends on 14)

The system as claimed in claim 14, wherein each among the first group and second group is configured to produce a beam having a profile, in a vertical plane perpendicular to the optical axis, with a heightwise constriction in the direction of the optical axis.

### Claim 16 (depends on 13)

The system as claimed in claim 13, wherein the first group and second group are configured to produce beams that are symmetric to one another relative to a vertical plane passing through the optical axis.

### Claim 17 (depends on 11)

The system as claimed in claim 11, wherein the device for projecting the low beam is configured so that a relative position of at least two sub-beams is modifiable between at least one position wherein the interior zone is present and at least one other position wherein the interior zone is absent.

### Claim 18 (depends on 17)

The system as claimed in claim 17, wherein the plurality of modules comprises at least one module that is configured to produce a rotatable sub-beam.

### Claim 19 (depends on 18)

The system as claimed in claim 18, wherein the relative position of the sub-beams respectively produced by the modules of the first group and by those of the second group is modifiable.

### Claim 20 (depends on 19)

The system as claimed in claim 19, comprising a third group of at least one module located along the optical axis.
