WO2013080158A1 - Phare pour applications d'éclairage automobile - Google Patents

Phare pour applications d'éclairage automobile Download PDF

Info

Publication number
WO2013080158A1
WO2013080158A1 PCT/IB2012/056834 IB2012056834W WO2013080158A1 WO 2013080158 A1 WO2013080158 A1 WO 2013080158A1 IB 2012056834 W IB2012056834 W IB 2012056834W WO 2013080158 A1 WO2013080158 A1 WO 2013080158A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
light sources
led light
light
central
Prior art date
Application number
PCT/IB2012/056834
Other languages
English (en)
Inventor
Nils Benter
Benno Spinger
Michael BEIFUSS
Original Assignee
Koninklijke Philips Electronics N.V.
Philips Intellectual Property & Standards Gmbh
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 Koninklijke Philips Electronics N.V., Philips Intellectual Property & Standards Gmbh filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2013080158A1 publication Critical patent/WO2013080158A1/fr

Links

Classifications

    • 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
    • B60Q1/0029—Spatial arrangement
    • B60Q1/0041—Spatial arrangement of several lamps in relation to each other
    • B60Q1/0052—Spatial arrangement of several lamps in relation to each other concentric
    • 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
    • B60Q1/0029—Spatial arrangement
    • B60Q1/0041—Spatial arrangement of several lamps in relation to each other
    • B60Q1/0047—Signalling unit mounted on a headlamp unit
    • 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
    • F21S41/10—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
    • 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
    • F21S41/24—Light guides
    • 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/251—Light guides the light guides being used to transmit light from remote light sources
    • 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
    • B60Q2400/30—Daytime running lights [DRL], e.g. circuits or arrangements therefor
    • 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
    • F21S41/27—Thick lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities

Definitions

  • the present invention relates to a headlight for automotive lighting applications which at least comprises a central light source mounted on a base, an outcoupling optics arranged in front of the central light source and several LED light sources.
  • the headlight should be able to provide a homogeneous appearance in the DRL mode and a high optical efficiency.
  • the proposed headlight at least comprises a central light source mounted on a base, an outcoupling optics arranged in front of the central light source and designed to create a first light distribution of a first light beam emitted from the central light source, one or several LED light sources and one or several optical elements arranged in the beam path between the LED light sources and the outcoupling optics.
  • the LED light sources may be mounted on the same base as the central light source or on an additional base connected to the base of the central light source.
  • the optical elements are designed to guide and/or form second light beams emitted from the LED light sources such that the outcoupling optics creates a second light distribution of the second light beams different from the first light distribution.
  • the optical elements in the following also called micro-optical elements due to their small size, are mounted statically relative to the LED light sources and the base.
  • the same outcoupling optics is used for the generation of the first light distribution and for the generation of the second light distribution without mechanically moving any components of the headlight.
  • This allows a design of the headlight for performing an automotive LB lighting function with the first light distribution and a DRL function with the second light distribution.
  • the central light source and the outcoupling optics are arranged and designed in such an embodiment to perform the automo- tive LB lighting function.
  • the LED light sources and the micro-optical elements are arranged and designed to perform in combination with this outcoupling optics the automotive DRL function.
  • the central light source and the outcoupling optics may also be arranged and designed to perform a high beam and/or front fog lighting function.
  • the LED light sources or some of these light sources may be arranged and designed together with the corresponding micro-optical elements to perform a front turn indicator function and/or a position light function. Due to the use of the one or several micro- optical elements most of the light emitted by the LED light sources are directed through the outcoupling optics resulting in a good optical efficiency which decreases the amount of the required LED light sources and therefore decreases the costs.
  • the proposed construction allows to mount a central light source having a higher mounting height than the LED light sources together with the LED light sources on the same base and to achieve nevertheless a light emission of both types of light sources at the same level with respect to the outcoupling lens.
  • the micro-optical elements are designed to have their outcoupling faces at the same level as the emission surface of the central light source. This avoids to mount the LED light sources in another level as the central light source asking for a much more complicated board layout and manufacturing process.
  • mounting height in this context means the distance of the most distant edge of the corresponding element from the base.
  • the LED light sources and the micro-optical elements are thus preferably arranged and designed such the combination of each LED light source with its corresponding micro-optical element has approximately the same mounting height on the base or relative to the base as the central light source. With approximately the same height is meant that the height of the combination of LED light sources and micro- optical elements on the base does not deviate more than 10% from the height of the central light source on the base.
  • the LED light sources are arranged to at least partly surround the central light source on the base.
  • the micro-optical elements then preferably form a continuous or interrupted frame at least partly surrounding the central light source, i.e. are made of one single element or of several separated elements sur- rounding the central light source.
  • the micro-optical elements may be designed to optically is smear out dark gaps between the LED light sources and/or between the LED light sources and the central light source. This leads to a homogeneous light distribution with a high optical efficiency compared to an arrangement without such micro-optical elements.
  • the base preferably comprises one or several electronic circuits for operating the central light source and the LED light sources.
  • the base may also only include the electrical connections to the driving electronics for the light sources. This driving electronics, however, may also be integrated in the base.
  • the proposed headlight can be applied in automotive lighting functions to combine two or more functions in one optical cavity, e.g. LB with DRL and/or the front turn indicator.
  • Fig. 1 shows examples of a LB light and a DRL distribution
  • Fig. 2 shows a schematic view of a cross section of the basic optical setup of the proposed headlight
  • Fig. 3 shows a top view of an example of the micro-optical frame
  • Fig. 4 shows a side view of an example of the micro-optical frame
  • Fig. 5 shows a front cut view of an example of the micro-optical frame of the proposed headlight.
  • Figure 1 shows an example for the different light distributions of a LB light (Fig. la) and a DRL (Fig. lb). The figure has already being described in the introductory portion of the present description.
  • the headlight according to the present invention is provided.
  • Figure 2 shows a schematic cross sectional view of an example of such a headlight.
  • the central LB light source 2 and several LED light sources 3 are mounted on a common printed circuit board 1 (PCB).
  • the LB light source 2 is a high intensity light source, e. g. a LUXEON Altilon Core. This light source is positioned in the optical center of an optical outcoupling system, e. g. a lens or lens array or a reflector, which creates the whole or part of the required LB distribution.
  • Figure 2 shows the corresponding outcoupling optics as an outcoupling lens 5.
  • the LED light sources 3 are arranged on the PCB 3 to surround the LB light source 2.
  • the central LB light source 2 is also surrounded by an optical element 4 (micro optic frame) which guides the light of the LED light sources 3 to the emission plane of the LB light source 2.
  • the LED light sources 3 may be formed, e. g. by LUX- EON Altilon Fl LEDs. Due to the arrangement of the optical element 4 in front of the LED light sources 3, the light of the LED light sources 3 leaves the outcoupling face of the optical element 4 in the same plane as the emission plane of the LB light source 2 as shown in fig- ure 2.
  • the optical element 4 is designed to smear out the dark gap between the LED light sources 3 as well as the gap between the LB light source 2 and the LED light sources 3. This increases the homogeneity of the beam distribution and the optical appearance.
  • Figure 3 shows a top view of an example of the LED light sources 3, the LB light source 2 and the optical element 4 which is formed of three separate parts in the present example. These three parts form an interrupted optical frame partly surrounding the LB light source 2, but may also be combined to one single element if desired.
  • the LB light source 2 is connected via two wires to a driver electronics as also schematically indicated in the figure.
  • the micro-optical element 4 are designed as a light guide for the light emitted by the LED light sources 3 in this example.
  • figure 4 which shows a side view of the optical element 4
  • the height of the combination of optical frame and LED light sources on the PCB 1 is in the same order as the height of the LB light source on the PCB 1.
  • the same arrangement is also shown in a front cut view in figure 5.
  • the micro-optical element or frame 4 may e. g. be stacked, glued or screwed on the PCB 1 or on a potential back side heat sink.
  • additional amber light sources are positioned between the LED light sources 3 such that also the amber light is guided by the micro-optical elements 4.
  • LED light source optical element outcoupling lens region of highest intensity regions

Abstract

La présente invention concerne un phare pour des applications d'éclairage automobile, comportant au moins une source lumineuse centrale (2) montée sur un socle (1), une optique de couplage de sortie (5) disposée devant la source lumineuse centrale (2), une pluralité de sources lumineuses LED (3) et un ou des élément(s) optiques (4) disposé(s) entre les sources lumineuses LED (3) et l'optique de couplage de sortie (5). Les éléments optiques (4) sont agencés pour guider et/ou former des faisceaux lumineux émis depuis les sources lumineuses LED (3) de sorte que l'optique de couplage de sortie (5) créée une distribution de lumière de ces faisceaux lumineux différente de la distribution de lumière du faisceau lumineux de la source lumineuse centrale (2). Le phare selon l'invention permet la combinaison d'une fonction de feu de croisement avec un feu de jour au moyen d'une même optique de couplage de sortie sans nécessiter de composants optiques mobiles.
PCT/IB2012/056834 2011-12-02 2012-11-29 Phare pour applications d'éclairage automobile WO2013080158A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161566032P 2011-12-02 2011-12-02
US61/566,032 2011-12-02

Publications (1)

Publication Number Publication Date
WO2013080158A1 true WO2013080158A1 (fr) 2013-06-06

Family

ID=47559591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/056834 WO2013080158A1 (fr) 2011-12-02 2012-11-29 Phare pour applications d'éclairage automobile

Country Status (1)

Country Link
WO (1) WO2013080158A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016188746A1 (fr) * 2015-05-26 2016-12-01 Koninklijke Philips N.V. Dispositif d'éclairage à mode de foclisation multiple
US9909747B2 (en) 2015-11-06 2018-03-06 Ford Global Technologies, Llc Vehicle lighting assembly with retractable cover providing daylight running lamp
WO2022110570A1 (fr) * 2020-11-27 2022-06-02 华域视觉科技(上海)有限公司 Élément optique à faisceau élevé, unité d'éclairage à faisceau élevé et véhicule

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005007501U1 (de) * 2005-05-12 2005-08-18 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugleuchte umfassend mindestens eine Leuchtdiode
EP1903274A1 (fr) * 2006-09-19 2008-03-26 Schefenacker Vision Systems Germany GmbH Unité d'éclairage destinée à la production de feux de croisement et de route
DE102007052696A1 (de) * 2007-01-11 2008-07-17 Zizala Lichtsysteme Gmbh Totalreflexionsoptik-System für einen Scheinwerfer oder eine Lichteinheit eines Kraftfahrzeuges
US20090251915A1 (en) 2008-04-07 2009-10-08 Agoston Boroczki Three-mode integrated headlamp
EP2159481A1 (fr) * 2008-09-02 2010-03-03 Koito Manufacturing Co., Ltd. Dispositif d'éclairage pour véhicule
US20100226142A1 (en) * 2009-02-12 2010-09-09 Matthias Brendle Projection Module for a Motor Vehicle Headlight
EP2390561A1 (fr) * 2010-05-28 2011-11-30 Hella KGaA Hueck & Co. Module de projection à DEL pour un phare de véhicule
WO2012084481A1 (fr) * 2010-12-21 2012-06-28 Osram Ag Dispositif d'éclairage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005007501U1 (de) * 2005-05-12 2005-08-18 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugleuchte umfassend mindestens eine Leuchtdiode
EP1903274A1 (fr) * 2006-09-19 2008-03-26 Schefenacker Vision Systems Germany GmbH Unité d'éclairage destinée à la production de feux de croisement et de route
DE102007052696A1 (de) * 2007-01-11 2008-07-17 Zizala Lichtsysteme Gmbh Totalreflexionsoptik-System für einen Scheinwerfer oder eine Lichteinheit eines Kraftfahrzeuges
US20090251915A1 (en) 2008-04-07 2009-10-08 Agoston Boroczki Three-mode integrated headlamp
EP2159481A1 (fr) * 2008-09-02 2010-03-03 Koito Manufacturing Co., Ltd. Dispositif d'éclairage pour véhicule
US20100226142A1 (en) * 2009-02-12 2010-09-09 Matthias Brendle Projection Module for a Motor Vehicle Headlight
EP2390561A1 (fr) * 2010-05-28 2011-11-30 Hella KGaA Hueck & Co. Module de projection à DEL pour un phare de véhicule
WO2012084481A1 (fr) * 2010-12-21 2012-06-28 Osram Ag Dispositif d'éclairage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016188746A1 (fr) * 2015-05-26 2016-12-01 Koninklijke Philips N.V. Dispositif d'éclairage à mode de foclisation multiple
US10948148B2 (en) 2015-05-26 2021-03-16 Lumileds Llc Lighting device with multiple-focus mode
US9909747B2 (en) 2015-11-06 2018-03-06 Ford Global Technologies, Llc Vehicle lighting assembly with retractable cover providing daylight running lamp
WO2022110570A1 (fr) * 2020-11-27 2022-06-02 华域视觉科技(上海)有限公司 Élément optique à faisceau élevé, unité d'éclairage à faisceau élevé et véhicule

Similar Documents

Publication Publication Date Title
US11028987B2 (en) Double-row matrix illumination module and auxiliary illumination method thereof
JP5940757B2 (ja) 自動車のリヤコンビネーションランプ用の側方取付け型発光ダイオードモジュール
US9310057B2 (en) Lighting apparatus
EP2796772B1 (fr) Phare de véhicule
JP5863226B2 (ja) 自動車のリヤコンビネーションランプ用の後方取付け型発光ダイオードモジュール
US20090237952A1 (en) Semiconductor-based lighting system and lighting system components for automotive use
JP5615516B2 (ja) 自動車のリヤコンビネーションランプ用の後方取付け型発光ダイオードモジュール
CN102644895B (zh) 车辆用灯具
US10309603B2 (en) Dual-function low-high beam lighting module for a motor vehicle
US9671078B2 (en) Lighting unit for a motor vehicle
US10184634B2 (en) Headlamp including matrix static bending lights optical system
KR20160039222A (ko) 조명 방향의 평면에 인쇄 회로 기판을 포함하는, 특히 자동차 조명 부품을 위한 조명 시스템
US20120162997A1 (en) Light signal
WO2013080158A1 (fr) Phare pour applications d'éclairage automobile
US20120230046A1 (en) Vehicular illumination system
DE102009035544B4 (de) Scheinwerfer in einem Kraftfahrzeug mit mehreren Halbleiterlichtquellen
KR20160136900A (ko) 차량용 램프
JP2016527686A (ja) 照明システム、具体的には、照明方向に対して傾斜したプリント基板を備える自動車両用の照明部材
KR20080092472A (ko) 직접 조명 차량 램프
JP6150106B2 (ja) 車両用灯具
CN108375033A (zh) Led近光模组以及车辆
US20160290618A1 (en) Illuminating unit with two modules
KR20230165976A (ko) Fpcb를 이용한 차량용 조명장치
US20230235869A1 (en) Bendable lighting device
CN115698585A (zh) 用于机动车的头灯

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12815793

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12815793

Country of ref document: EP

Kind code of ref document: A1