WO2019197204A1 - Phare pour véhicules - Google Patents

Phare pour véhicules Download PDF

Info

Publication number
WO2019197204A1
WO2019197204A1 PCT/EP2019/058229 EP2019058229W WO2019197204A1 WO 2019197204 A1 WO2019197204 A1 WO 2019197204A1 EP 2019058229 W EP2019058229 W EP 2019058229W WO 2019197204 A1 WO2019197204 A1 WO 2019197204A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
light
light distribution
headlight according
optics
Prior art date
Application number
PCT/EP2019/058229
Other languages
German (de)
English (en)
Inventor
Björn Dreßler
Ronny Letzin
Ewald Topp
Original Assignee
HELLA GmbH & Co. KGaA
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 HELLA GmbH & Co. KGaA filed Critical HELLA GmbH & Co. KGaA
Publication of WO2019197204A1 publication Critical patent/WO2019197204A1/fr

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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape 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
    • 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
    • F21S41/25—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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
    • F21W2102/18—Arrangement or contour of the emitted light for regions other than high beam or low beam for overhead signs

Definitions

  • the invention relates to a headlamp for vehicles of a light source, a pri märoptik for collecting light emitted by the light source, a projection optics for imaging the light for generating a predetermined light distribution, a diaphragm device comprising a blend edge, which leads to a light / Dark border in the light distribution can be mapped, means for generating an OS light distribution, by means of which a highly arranged traffic sign can be illuminated.
  • a headlight for vehicles which is able to produce a plurality of light distributions.
  • a daytime running light distribution can be generated, for example.
  • a disadvantage of the known headlamps is that for this purpose a plurality of light sources are required, which in each case have a different relative position with respect to a stored optical system.
  • a headlamp for vehicles which has a single light source, a primary and projection optics and a reteroptik between the Pri and the projection optics arranged aperture device.
  • the diaphragm device has a glare edge, so that a low-beam light distribution with a light / dark boundary can be generated.
  • a deflection surface is provided as means for generating an OS light distribution, by means of which a highly arranged traffic sign can be illuminated, so that the light is radiated out of the headlight at a relatively steep angle.
  • the OS light distribution runs above the light / dark limit of the light distribution.
  • a disadvantage of the known headlights that an additional component for providing the OS light distribution is required. Since this is arranged in the region of the projection optics designed as a projection lens, the projection optics have an inhomogeneous character.
  • the object of the present invention is therefore to provide a headlamp for vehicles with means for generating an OS light distribution, by means of which a highly arranged
  • the traffic sign can be illuminated in such a way that the costs can be further reduced on the one hand and a homogeneous appearance is ensured for a viewer from the outside, in particular a projection optics arranged in front of the light emission direction.
  • an OS diaphragm is provided, which is designed such that a proportion of light emitted by the primary optics light on a Such a subarea of the projection optics is such that this light component is imaged above the light / dark boundary for generating the OS light distribution.
  • the particular advantage of the invention is that no means for generating an OS light distribution must be arranged in the region of a projection optics, that is to say in a front region of the headlight, which is recognizable to a viewer from the outside.
  • the headlight can thus have a homogeneously formed projection optics, for example a projection lens.
  • an OS diaphragm is provided, which is arranged in the region of a primary optic, ie in the main emission direction behind the projection optics or between the projection optics and the primary optics.
  • This OS diaphragm is arranged such that a light component of the light emitted by the light source is "guided" into a region of the projection optical system by means of which, in addition to the actual light distribution, an OS light distribution can be generated.
  • This OS light distribution is spatially distinct from the light distribution.
  • the OS diaphragm is part of the diaphragm device.
  • Advantageously can thus be dispensed with an additional component within the headlamp.
  • the OS diaphragm is integrally connected to the blend edge and / or a diaphragm surface of the diaphragm device.
  • the cost of materials and the manufacturing cost can be reduced.
  • the glare surface of the glare device runs essentially perpendicular to a radiation surface of the primary optics.
  • An extension of the blend area thus intersects the emission surface in a dividing line which separates an upper and a lower section of the primary optics.
  • a first portion of light is emitted which, by means of the blend surface, impinges on such a portion of the projection optics that the OS light distribution can be generated.
  • a second light component in such a region of the projection optics that the light distribution (low-beam light distribution) is generated.
  • the diaphragm surface is arranged in such a way that a forced division of the light emitted by the primary optics takes place in the direction of the projection optics.
  • a vertical angle range and / or a light intensity of the OS light distribution can be adjusted by a vertical angular position of the diaphragm surface.
  • the shape of the OS light distribution can thus be set to a horizontal only by changing a relative position of the diaphragm surface.
  • the height of a shading strip can be set, which extends between the light / dark boundary of the light distribution and the OS light distribution.
  • the glare of oncoming traffic can thereby be reduced.
  • the illuminance levels in ECE measurement points, such as HV, B50L can be minimized, making it easier to comply with ECE regulations.
  • FIG. 1 is a front perspective view of a headlamp according to the invention
  • FIG. 2 is a front view of the headlamp seen from a lower area
  • Fig. 3 is a side view of the headlamp
  • FIG. 4 shows a representation of the light distributions imaged on a measuring screen at a distance of 25 m.
  • a headlamp for vehicles has a pot-shaped housing with an opening arranged in the main emission direction H of the same front, which is closed by a glass-clear cover.
  • several modules for example, for low beam, daytime running lights, high beam, etc. may be arranged.
  • a projection module 1 is provided which has a number of LED light sources as light source 2.
  • six light sources 2 are provided, each of which is preceded by primary optics elements 3 of a primary optic 4.
  • the primary optics elements 3 or the primary optics 4 serve to collect light emitted by the light sources 2 in the direction of a projection optics 5 arranged in the main emission direction H in front of the primary optics 4.
  • the primary optics elements 3 are designed as lens elements.
  • the primary optic elements 3 may have a collimating effect, so that the light is substantially parallelized.
  • the primary optics elements 3 are preferably designed such that the light emitted by the same impinges on an entry surface of the projection optics 5.
  • the primary optics 4 is attached to a carrier 6, to which the light sources 2, not shown in FIG. 3, are attached.
  • a diaphragm device 7 which has a diaphragm surface 8 and a diaphragm edge 9 which is arranged in the front in the main emission direction H.
  • the diaphragm surface 8 extends substantially perpendicularly to a radiating surface 10 of the primary optics 4 or to the primary optics 4.
  • the diaphragm surface 8 extends at the level of a lower region of the primary optics 4 or the radiating surface 10.
  • An extension plane E B of the diaphragm surface 8 intersects the primary optics 4 or the emission surface 10 thereof in the lower region, preferably over an entire width bp of the primary optics 4.
  • the diaphragm surface 8 which preferably consists of a light-absorbing material, thus leads to a splitting of the light emitted by the primary optics 4 ,
  • a first light component 11 of the light emitted by the light sources 2 or the primary optics 4 runs below the diaphragm surface 8.
  • a second light component 12 of the light emitted by the light sources 2 or the primary optics 4 extends above the diaphragm surface 8 is discharged from a lower portion 13 of the radiating surface 10.
  • the second light component 12 is emitted from an upper section 14 of the emission surface 10 of the primary optics 4.
  • the area ratio of the upper portion 14 to the lower portion 13 and the luminous flux of the second light portion 12 to the first light portion 11 is greater than seven, preferably in the range of nine to eleven.
  • the light sources 2 each have the same relative position to the upstream optics, namely the primary optics 3 of the primary optics 4.
  • the first light component 11 strikes a lower region of a light entry surface of the projection optics 5, by means of which it is refracted to produce an OS light distribution 15, which is used to illuminate a highly arranged traffic sign (OS overhead sign).
  • the second light component 12 strikes the entire light entry surface of the projection optical system 5 approximately, by means of which it is refracted to the light source.
  • the projection optical system 5 is designed as a lens which has the light entry surface on a side facing the primary optic 4 and a light exit surface on a side remote from the primary optic 4.
  • the projection optics 5 can also take several lenses. It is essential that the projection optical system 5 images the first light component 11 and the second light component 12 in order to generate the US light distribution 15 or low-beam light distribution 16.
  • an OS diaphragm 18, which is formed by the diaphragm surface 8 of the diaphragm device 7, is used.
  • the OS diaphragm 18 is part of the diaphragm device 7. It is integrally connected to the diaphragm edge 9.
  • the OS diaphragm 18 also serves as a diaphragm for the second light component 12, which serves to generate the low-beam light distribution 16, and for the first light portion 11, which serves to generate the OS light distribution 15.
  • the OS diaphragm 18 or the diaphragm surface 8 thus has a double function.
  • the OS diaphragm 18 may also be arranged at a distance from the diaphragm surface 8, that is, below the diaphragm surface 8. This would lead to a shading strip 19 between the OS light distribution 15 and the low beam distribution 16 having an increased width, s. FIG. 4.
  • a single diaphragm surface 8, which at the same time serves as an OS diaphragm 18, is provided with such a material thickness d ⁇ that the shading strip 19 is formed between the OS light distribution 15 and the low beam light distribution 16.
  • a glare of the traffic objects can thereby be reduced, because at certain points of the light distribution, ECE measuring points (zero point), the illuminances can be reduced.
  • a width of the shading strip 19 can be adjusted. The distance between the OS light distribution 15 and the low beam distribution 16 can thus be varied.
  • the diaphragm device 7 is - as the primary optics 3 - fixed to the support 6.
  • the diaphragm surface 8 is preferably flat.
  • the diaphragm device 7 extends in a region close to the primary optics 4. Blend the edge 9 is disposed in egg nem distance from the projection optical system 5, which is greater than a length I SS of the aperture area 8, or the OS aperture 18th
  • the substantially horizontally extending OS diaphragm 18 causes the OS light distribution 15 to extend in a vertical angle range of 0 ° to 4 ° and in a horizontal angle range of +/- 20 °.
  • the vertical angle range of the OS light distribution 15 and / or a Lichtin intensity thereof can be changed or set. If, for example, the diaphragm surface 8 were to be adjusted upward by a few angles in the main emission direction H, so that the diaphragm surface 8 rises from a rear edge in the main emission direction H, the first light component 11 would cover a larger partial region of the projection optics 5 so that the vertical angle range of the OS light distribution 15 would be relatively larger.
  • the OS diaphragm 18 causes a relatively smaller lower portion of the projection optics 5 to be detected by the first light component 11. Since the first light component 11 extends substantially horizontally, the first light component 11 is refracted or deflected at a relatively large angle compared to the second light component 12.
  • the second light component 12 can also be used to generate a different light distribution.
  • the projection module 1 may also have only a single light source 2, the primary optics 4 having only a single primary optic element 3.

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)

Abstract

L'invention concerne un phare pour véhicules comprenant une source lumineuse (2), une optique primaire (4) pour collecter la lumière émise par la source lumineuse (2), une optique de projection (5) pour la formation de la lumière destinée à générer une distribution de lumière (16) prédéfinie, un dispositif à diaphragme (7) comprenant un bord de diaphragme (9) qui peut être formé pour une coupure (17) dans la distribution de lumière (16), des moyens pour la génération d'une distribution de lumière OS (15), au moyen de laquelle un panneau de signalisation situé en hauteur peut être éclairé, un diaphragme OS (18) étant prévu comme moyen pour la génération de la distribution de lumière OS (15), lequel est conçu de telle façon qu'une part de lumière (11) de la lumière émise par l'optique primaire (4) atteint une zone de l'optique de projection (5) telle que cette part de lumière (11) est formée au-dessus de la coupure (17) pour la génération de la distribution de lumière OS (15).
PCT/EP2019/058229 2018-04-11 2019-04-02 Phare pour véhicules WO2019197204A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018108567.2 2018-04-11
DE102018108567.2A DE102018108567A1 (de) 2018-04-11 2018-04-11 Scheinwerfer für Fahrzeuge

Publications (1)

Publication Number Publication Date
WO2019197204A1 true WO2019197204A1 (fr) 2019-10-17

Family

ID=66092318

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/058229 WO2019197204A1 (fr) 2018-04-11 2019-04-02 Phare pour véhicules

Country Status (2)

Country Link
DE (1) DE102018108567A1 (fr)
WO (1) WO2019197204A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210094622A (ko) * 2018-12-21 2021-07-29 제트카베 그룹 게엠베하 자동차 헤드램프용 조명 장치와 자동차 헤드램프
KR20210096127A (ko) * 2020-01-20 2021-08-04 하스코 비전 테크놀로지 컴퍼니 리미티드 로우빔 광학 모듈, 로우빔 조명 모듈, 차량용 램프 및 차량
CN115023568A (zh) * 2019-12-27 2022-09-06 株式会社小糸制作所 车辆用前照灯

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DE102006061751A1 (de) * 2005-12-28 2007-07-12 Koito Mfg. Co., Ltd. Fahrzeugscheinwerfer
EP2363320A1 (fr) 2010-02-27 2011-09-07 Automotive Lighting Reutlingen GmbH Phare frontal doté d'un système de réflexion DEL doté d'une fonction de feux de brouillard et de feux de jour
DE102012102435A1 (de) 2012-03-22 2013-09-26 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge
WO2014165884A2 (fr) * 2013-04-09 2014-10-16 Zizala Lichtsysteme Gmbh Unité lumineuse dotée d'un cache pourvu d'au moins une fenêtre optique
EP2799761A2 (fr) * 2013-04-29 2014-11-05 Automotive Lighting Reutlingen GmbH Module d'éclairage de phare de véhicule automobile
US20150338047A1 (en) * 2014-05-23 2015-11-26 Koito Manufacturing Co., Ltd. Vehicular headlamp
DE102014111445A1 (de) 2014-08-12 2016-02-18 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge

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JP5535663B2 (ja) * 2010-01-14 2014-07-02 株式会社小糸製作所 車両用ヘッドランプ
JP5594216B2 (ja) * 2011-03-31 2014-09-24 市光工業株式会社 車両用前照灯
DE102012220507A1 (de) * 2012-11-09 2014-05-15 Automotive Lighting Reutlingen Gmbh Lichtmodul für einen Scheinwerfer eines Kraftfahrzeugs

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Publication number Priority date Publication date Assignee Title
DE102006061751A1 (de) * 2005-12-28 2007-07-12 Koito Mfg. Co., Ltd. Fahrzeugscheinwerfer
EP2363320A1 (fr) 2010-02-27 2011-09-07 Automotive Lighting Reutlingen GmbH Phare frontal doté d'un système de réflexion DEL doté d'une fonction de feux de brouillard et de feux de jour
DE102012102435A1 (de) 2012-03-22 2013-09-26 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge
WO2014165884A2 (fr) * 2013-04-09 2014-10-16 Zizala Lichtsysteme Gmbh Unité lumineuse dotée d'un cache pourvu d'au moins une fenêtre optique
EP2799761A2 (fr) * 2013-04-29 2014-11-05 Automotive Lighting Reutlingen GmbH Module d'éclairage de phare de véhicule automobile
US20150338047A1 (en) * 2014-05-23 2015-11-26 Koito Manufacturing Co., Ltd. Vehicular headlamp
DE102014111445A1 (de) 2014-08-12 2016-02-18 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210094622A (ko) * 2018-12-21 2021-07-29 제트카베 그룹 게엠베하 자동차 헤드램프용 조명 장치와 자동차 헤드램프
KR102561884B1 (ko) 2018-12-21 2023-08-01 제트카베 그룹 게엠베하 자동차 헤드램프용 조명 장치와 자동차 헤드램프
CN115023568A (zh) * 2019-12-27 2022-09-06 株式会社小糸制作所 车辆用前照灯
KR20210096127A (ko) * 2020-01-20 2021-08-04 하스코 비전 테크놀로지 컴퍼니 리미티드 로우빔 광학 모듈, 로우빔 조명 모듈, 차량용 램프 및 차량
EP3885644A4 (fr) * 2020-01-20 2021-10-27 Hasco Vision Technology Co., Ltd. Module optique de feu de croisement, module d'éclairage de feu de croisement, lampe de véhicule et véhicule
US11731552B2 (en) 2020-01-20 2023-08-22 Hasco Vision Technology Co., Ltd. Low beam optical module, low beam illumination module, vehicle lamp and vehicle
KR102598702B1 (ko) * 2020-01-20 2023-11-03 하스코 비전 테크놀로지 컴퍼니 리미티드 로우빔 광학 모듈, 로우빔 조명 모듈, 차량용 램프 및 차량

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