# US 10,501,010 B2 · Motor vehicle lighting module configured to project a light beam forming a pixelized image

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- Number: US 10,501,010 B2
- Document ID: US10501010B2
- Status: Granted
- Kind: B2
- Application number: 15/964,716
- Filed: 2018-04-27
- Published: 2018-11-01
- Granted: 2019-12-10
- Earliest claimed: 2017-04-28
- Assignees: Valeo Vision
- Applicants: Valeo Vision
- Inventors: Pierre Albou; Vincent Godbillon
- Web page: https://patentgrep.com/patent/US10501010B2

## CPC

- F21S 41/645: {by electro-optic means, e.g. liquid crystal or electrochromic devices}
- B60Q 1/38: using immovably-mounted light sources, e.g. fixed flashing lamps
- F21S 41/153: arranged in a matrix
- F21S 41/155: Surface emitters, e.g. organic light emitting diodes [OLED]
- F21S 41/25: Projection lenses
- F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162)
- F21S 41/675: by moving reflectors
- G01C 21/365: {Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself}
- G09G 3/3426: {the different display panel areas being distributed in two dimensions, e.g. matrix}
- G09G 3/346: {based on modulation of the reflection angle, e.g. micromirrors (micromirrors devices per se G02B26/0833)}
- G09G 3/364: {with use of subpixels}
- H04N 9/3126: {for spatial light modulators in series}
- H04N 9/3138: {using arrays of modulated light sources (electroluminescent display devices G09G3/30)}
- H04N 9/3188: {Scale or resolution adjustment (scaling in general G06T3/40; resolution modifying circuits for displays in general G09G5/391)}
- B60Q 2400/50: Projected symbol or information, e.g. onto the road or car body
- G09G 2300/023: Display panel composed of stacked panels
- G09G 2340/0457: Improvement of perceived resolution by subpixel rendering
- 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
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A lighting module for a motor vehicle, configured to project a light beam forming a pixelized image. The lighting module includes a light source and a device for processing the light emitted by the light source includes a matrix of active elements configured to process at least a portion of the light beam emitted by the light source in such a manner as to form the pixelized image. The light source includes a matrix of emissive elements of which at least two emissive elements can be activated selectively and the matrix of emissive elements and of active elements are offset relative to one another in such a manner that each active element is arranged across a portion of the light beam emitted by an emissive element.

## Claims

### Claim 1

Lighting device for a motor vehicle, configured to project a light beam forming a pixelized image, comprising
a light source and a light transmitting processing device for processing the light emitted by the light source, the light transmitting processing device including a matrix of active elements configured to be activated or be deactivated to transmit or not transmit, respectively, at least a portion of the light beam emitted by the light source to a receiving side of the active elements in such a manner as to form the pixelized image at the output side of the active elements opposite of the receiving side,
wherein the light source includes a matrix of emissive elements of which at least two emissive elements are activated selectively,
wherein the matrix of emissive elements and the matrix of active elements are offset relative to one another in such a manner that each active element is arranged across a portion of the light beam emitted by an emissive element, and
wherein at least one active element passes through to the output side a portion of the light beam emitted by an emissive element and at least one active element conceals a portion of the light beam emitted by an emissive element to project the pixelized image outside the lighting device.

### Claim 2 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein each emissive element is configured to light at least two adjacent active elements.

### Claim 3 (depends on 2)

Motor vehicle lighting device according to claim 2, wherein surface area of the matrix of emissive elements is greater than surface area of the matrix of active elements.

### Claim 4 (depends on 2)

Motor vehicle lighting device according to claim 2, wherein surface area of at least one emissive element is equal to surface area of at least one active element.

### Claim 5 (depends on 2)

Motor vehicle lighting device according to claim 2, wherein surface area projected onto the light transmitting processing device, of a light beam emitted by an emissive element is equal to surface area of at least one active element.

### Claim 6 (depends on 2)

Motor vehicle lighting device according to claim 2, wherein the lighting device comprises a first projection optic arranged facing the output of the matrix of active elements, in such a manner as to project the pixelized image outside the lighting device.

### Claim 7 (depends on 2)

Motor vehicle lighting device according to claim 2, wherein at least one active element reflects a portion of the light beam emitted by an emissive element.

### Claim 8 (depends on 2)

Motor vehicle lighting device according to claim 2, wherein at least one active element is configured to refract a portion of the light beam emitted by an emissive element.

### Claim 9 (depends on 2)

Motor vehicle lighting device according to claim 2, wherein the lighting device comprises a second projection optic arranged between the light source and the light transmitting processing device, in such a manner as to project onto the matrix of active elements at least a portion of the light emitted by the light source.

### Claim 10 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein surface area of the matrix of emissive elements is greater than surface area of the matrix of active elements.

### Claim 11 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein surface area of at least one emissive element is equal to surface area of at least one active element.

### Claim 12 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein surface area projected onto the light transmitting processing device, of a light beam emitted by an emissive element is equal to surface area of at least one active element.

### Claim 13 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein the lighting device comprises a first projection optic arranged facing the output of the matrix of active elements, in such a manner as to project the pixelized image outside the lighting device.

### Claim 14 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein at least one active element reflects a portion of the light beam emitted by an emissive element.

### Claim 15 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein at least one active element is configured to refract a portion of the light beam emitted by an emissive element.

### Claim 16 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein the lighting device comprises a second projection optic arranged between the light source and the light transmitting processing device, in such a manner as to project onto the matrix of active elements at least a portion of the light emitted by the light source.

### Claim 17 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein the lighting device comprises a control device configured to control simultaneously the lighting and/or the extinction of the emissive elements and to activate and/or deactivate the active elements of the processing device.

### Claim 18 (depends on 1)

Motor vehicle lighting device according to claim 1, wherein each emissive element comprises a plurality of submillimetre electroluminescent rods for emitting a light beam.

### Claim 19 (depends on 18)

Motor vehicle lighting device according to claim 18, wherein the electroluminescent rods project from a substrate, and is formed directly on that substrate.

### Claim 20 (depends on 1)

Motor vehicle lighting device including a lighting device according to claim 1.
