EP4073420A1 - Fahrzeugbeleuchtungsvorrichtung - Google Patents

Fahrzeugbeleuchtungsvorrichtung

Info

Publication number
EP4073420A1
EP4073420A1 EP20808156.2A EP20808156A EP4073420A1 EP 4073420 A1 EP4073420 A1 EP 4073420A1 EP 20808156 A EP20808156 A EP 20808156A EP 4073420 A1 EP4073420 A1 EP 4073420A1
Authority
EP
European Patent Office
Prior art keywords
barrel
contact area
holder
lighting device
vehicle lighting
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.)
Withdrawn
Application number
EP20808156.2A
Other languages
English (en)
French (fr)
Inventor
Lotfi REDJEM SAAD
Clement RONGIER
Sebastien ROELS
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
Publication of EP4073420A1 publication Critical patent/EP4073420A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings

Definitions

  • LED Light Emitting Diodes
  • the invention provides a solution for the aforementioned technical problem by means of a vehicle lighting device comprising:
  • solid state refers to light emitted by solid-state electroluminescence, which uses semiconductors to convert electricity into light. Compared to incandescent lighting, solid state lighting creates visible light with reduced heat generation and less energy dissipation.
  • the typically small mass of a solid-state electronic lighting device provides for greater resistance to shock and vibration compared to brittle glass tubes/bulbs and long, thin filament wires. They also eliminate filament evaporation, potentially increasing the lifespan of the illumination device.
  • Some examples of these types of lighting comprise semiconductor light-emitting diodes (LEDs), organic light-emitting diodes (OLED), or polymer light-emitting diodes (PLED) as sources of illumination rather than electrical filaments, plasma or gas.
  • the support barrel is a part which is commonly used in some solid-state light source devices. This barrel is used as a support for a plurality of lenses which project the light pattern emitted by the light sources. This barrel tends to overheat due to light absorption and this invention provides a way of avoiding this overheating.
  • At least a portion of the second barrel contact area is in thermal contact with the second holder contact area by the interposition of an additional conductive element.
  • the interposition of an additional conductive element is useful when the geometry of the lighting device does not allow a direct contact, or when the additional conductive element has a higher thermal conductivity than the holder element itself.
  • the support barrel 3 further comprises a second barrel contact area 32, with a surface greater than the surface of the first barrel contact area 31.
  • This second barrel contact area 32 is in thermal contact with a second holder contact area 42 of the holder element 4, thus creating a thermal path for heat dissipation between the barrel 3 and the holder 4.
  • Heat coming from the light absorption performed by the barrel 3 is conducted along the conductive surface of the barrel and then dissipated by the holder 4, due to the thermal contact between the second barrel contact area 32 and the second holder contact area 42, so that the lenses 5 do not reach a dangerous temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP20808156.2A 2019-12-11 2020-11-24 Fahrzeugbeleuchtungsvorrichtung Withdrawn EP4073420A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1914207A FR3104680B1 (fr) 2019-12-11 2019-12-11 Dispositif d'éclairage de véhicule
PCT/EP2020/083146 WO2021115775A1 (en) 2019-12-11 2020-11-24 Vehicle lighting device

Publications (1)

Publication Number Publication Date
EP4073420A1 true EP4073420A1 (de) 2022-10-19

Family

ID=72178576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20808156.2A Withdrawn EP4073420A1 (de) 2019-12-11 2020-11-24 Fahrzeugbeleuchtungsvorrichtung

Country Status (3)

Country Link
EP (1) EP4073420A1 (de)
FR (1) FR3104680B1 (de)
WO (1) WO2021115775A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3125105B1 (fr) * 2021-07-12 2023-10-06 Valeo Vision Module lumineux de véhicule automobile comprenant un organe de maintien de l’optique de projection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936686A (en) * 1973-05-07 1976-02-03 Moore Donald W Reflector lamp cooling and containing assemblies
CN101726819B (zh) * 2008-10-16 2013-04-24 鸿富锦精密工业（深圳）有限公司 镜头组合结构及应用该镜头组合结构的投影装置
TWI405026B (zh) * 2009-07-29 2013-08-11 Qisda Corp 投影機及其鏡頭
JP6236745B2 (ja) * 2014-02-17 2017-11-29 スタンレー電気株式会社 車両用灯具
JP2016001270A (ja) * 2014-06-12 2016-01-07 株式会社リコー 光学ユニット及び画像投影装置
FR3044393B1 (fr) * 2015-11-27 2019-04-26 Valeo Vision Module d'eclairage de projecteur de vehicule automobile et projecteur associe
US10436416B2 (en) * 2017-07-19 2019-10-08 Ford Global Technologies, Llc Vehicle light assembly with heat sink
CN108873579B (zh) * 2018-06-19 2021-04-30 青岛海信激光显示股份有限公司 投影设备

Also Published As

Publication number Publication date
WO2021115775A1 (en) 2021-06-17
FR3104680A1 (fr) 2021-06-18
FR3104680B1 (fr) 2021-12-10

Similar Documents

Publication Publication Date Title
EP3371512B1 (de) Reduzierung der thermischen empfindlichkeit einer beleuchtungsanordnung
US11746976B2 (en) Automotive lighting device
ES2539476T3 (es) Elemento de iluminación con soporte de plástico
WO2021115775A1 (en) Vehicle lighting device
EP3916295A1 (de) Automobilbeleuchtungsvorrichtung
WO2013046294A1 (ja) 電球型ランプ
WO2022129392A1 (en) Automotive luminous module and method for manufacturing an automotive luminous module
EP4429918A1 (de) Beleuchtungsvorrichtung für kraftfahrzeuge
WO2021115796A1 (en) Vehicle lighting device
EP3657067B1 (de) Automobilbeleuchtungsvorrichtung und verfahren zur herstellung einer automobilbeleuchtungsvorrichtung
EP3562273A1 (de) Elektronische anordnung und beleuchtungsvorrichtung
FR3110955A1 (fr) Automotive lighting device
EP4397902A1 (de) Leuchtmodul und kraftfahrzeug-leuchtvorrichtung
EP3561375B1 (de) Kühlvorrichtung für eine fahrzeugbeleuchtungsvorrichtung
WO2019207135A1 (en) Electronic assembly, lighting device and method for manufacturing a lighting device
EP3660393B1 (de) Autobeleuchtungsvorrichtung
US11454369B2 (en) Automotive lighting device
EP4397903A1 (de) Leuchtvorrichtung für kraftfahrzeuge
EP3581849B1 (de) Kühlvorrichtung für eine kraftfahrzeugbeleuchtungsvorrichtung und kraftfahrzeugbeleuchtungsvorrichtung
US8256933B1 (en) Heat dissipation apparatus for a lamp
KR200462335Y1 (ko) 양면 방열형 ｌｅｄ 램프
JP2015099753A (ja) Ｌｅｄ電球
JPWO2013046294A1 (ja) 電球型ランプ
WO2012134323A1 (ru) Светодиодная лампа

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220616

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230528

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240103

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20240502