FR3055979B1 - CHARACTERISTICS OF PIXELISE LIGHT BEAM - Google Patents

CHARACTERISTICS OF PIXELISE LIGHT BEAM Download PDF

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Publication number
FR3055979B1
FR3055979B1 FR1658622A FR1658622A FR3055979B1 FR 3055979 B1 FR3055979 B1 FR 3055979B1 FR 1658622 A FR1658622 A FR 1658622A FR 1658622 A FR1658622 A FR 1658622A FR 3055979 B1 FR3055979 B1 FR 3055979B1
Authority
FR
France
Prior art keywords
light beam
pixelated
pixelise
projection
motor vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1658622A
Other languages
French (fr)
Other versions
FR3055979A1 (en
Inventor
Nicolas Lefaudeux
Antoine De Lamberterie
Guillaume THIN
Samira MBATA
Thomas Canonne
Van-Thai HOANG
Vincent DuBois
Francois-Xavier AMIEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Priority to FR1658622A priority Critical patent/FR3055979B1/en
Priority to PCT/EP2017/072740 priority patent/WO2018050593A1/en
Publication of FR3055979A1 publication Critical patent/FR3055979A1/en
Application granted granted Critical
Publication of FR3055979B1 publication Critical patent/FR3055979B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
    • F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3138—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using arrays of modulated light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/50—Projected symbol or information, e.g. onto the road or car body

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Instrument Panels (AREA)

Abstract

L'invention se rapporte notamment à un dispositif lumineux (7) de véhicule automobile (1) comportant une source lumineuse pixélisée et un système optique agencé pour projeter un faisceau lumineux pixélisé (10) émis par la source lumineuse pixélisée, la projection du faisceau lumineux pixélisé sur la route incluant une image (9) présentant un contraste compris entre 1,5 et 4, une résolution comprise entre 0,025° et 0,75°, et/ou une netteté comprise entre 0,075° et 0,2. L'invention offre une projection d'un faisceau lumineux pixélisé par un dispositif lumineux de véhicule automobile améliorée.The invention relates in particular to a light device (7) of a motor vehicle (1) comprising a pixelated light source and an optical system arranged to project a pixelated light beam (10) emitted by the pixelated light source, the projection of the light beam pixelated on the road including an image (9) having a contrast between 1.5 and 4, a resolution between 0.025 ° and 0.75 °, and / or a sharpness between 0.075 ° and 0.2. The invention provides a projection of a pixelated light beam by an illuminated device of an improved motor vehicle.

FR1658622A 2016-09-15 2016-09-15 CHARACTERISTICS OF PIXELISE LIGHT BEAM Active FR3055979B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1658622A FR3055979B1 (en) 2016-09-15 2016-09-15 CHARACTERISTICS OF PIXELISE LIGHT BEAM
PCT/EP2017/072740 WO2018050593A1 (en) 2016-09-15 2017-09-11 Motor vehicle light device comprising a pixelated light source and method of projecting a pixelated light beam from said motor vehicle light device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1658622A FR3055979B1 (en) 2016-09-15 2016-09-15 CHARACTERISTICS OF PIXELISE LIGHT BEAM
FR1658622 2016-09-15

Publications (2)

Publication Number Publication Date
FR3055979A1 FR3055979A1 (en) 2018-03-16
FR3055979B1 true FR3055979B1 (en) 2019-04-05

Family

ID=57348948

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1658622A Active FR3055979B1 (en) 2016-09-15 2016-09-15 CHARACTERISTICS OF PIXELISE LIGHT BEAM

Country Status (2)

Country Link
FR (1) FR3055979B1 (en)
WO (1) WO2018050593A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3079470A1 (en) * 2018-04-03 2019-10-04 Valeo Vision LUMINOUS DEVICE OF A MOTOR VEHICLE HAVING AT LEAST ONE PIXELIZED LIGHT SOURCE
FR3084307A1 (en) * 2018-07-27 2020-01-31 Valeo Vision LIGHTING SYSTEM FOR A MOTOR VEHICLE
FR3086901B1 (en) * 2018-10-01 2020-11-13 Valeo Vision PROCESS FOR DRIVING PIXELLIZED LIGHT BEAM PROJECTION MODULES FOR VEHICLES
EP3670261B1 (en) * 2018-12-19 2023-04-19 Valeo Vision Method for correcting a light pattern and automotive lighting device assembly
DE102019111007A1 (en) * 2019-04-29 2020-10-29 HELLA GmbH & Co. KGaA Method for controlling a headlight of a motor vehicle
FR3100309B1 (en) * 2019-09-03 2022-01-07 Vignal Systems Signaling device and vehicle comprising this device
FR3104742B1 (en) * 2019-12-12 2023-03-31 Valeo Comfort & Driving Assistance Vehicle display system
CN112776800B (en) * 2021-01-19 2022-08-16 中国第一汽车股份有限公司 Early warning method, device, equipment and storage medium
DE102021201550A1 (en) * 2021-02-18 2022-08-18 Psa Automobiles Sa Method for operating a high-resolution projection headlight and projection headlight system for a motor vehicle
DE102021111021B3 (en) * 2021-04-29 2022-05-12 HELLA GmbH & Co. KGaA Method for operating a high-resolution headlight of a vehicle
FR3138552A1 (en) * 2022-07-26 2024-02-02 Valeo Comfort And Driving Assistance Electronic device and method for monitoring the presence of an optical element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8733939B2 (en) * 2012-07-26 2014-05-27 Cloudcar, Inc. Vehicle content projection
DE102013104276B4 (en) * 2013-04-26 2023-07-20 HELLA GmbH & Co. KGaA Method for adjusting at least one footprint parameter in a local footprint portion of a footprint
DE102014214522A1 (en) * 2014-07-24 2016-01-28 Volkswagen Aktiengesellschaft Method and device for projecting light symbols on a roadway
DE102014016332A1 (en) * 2014-11-05 2016-05-12 Audi Ag Headlight for a motor vehicle and method for operating a headlight

Also Published As

Publication number Publication date
FR3055979A1 (en) 2018-03-16
WO2018050593A1 (en) 2018-03-22

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