EP1589282A1 - Feu pour véhicules, sous forme de plaque mince - Google Patents

Feu pour véhicules, sous forme de plaque mince Download PDF

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Publication number
EP1589282A1
EP1589282A1 EP04425280A EP04425280A EP1589282A1 EP 1589282 A1 EP1589282 A1 EP 1589282A1 EP 04425280 A EP04425280 A EP 04425280A EP 04425280 A EP04425280 A EP 04425280A EP 1589282 A1 EP1589282 A1 EP 1589282A1
Authority
EP
European Patent Office
Prior art keywords
source
section
primary reflector
light
reflecting
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.)
Granted
Application number
EP04425280A
Other languages
German (de)
English (en)
Other versions
EP1589282B1 (fr
Inventor
Davide Capello
Stefano c/o C.R.F. Società Consortile Bernard
Denis Bollea
Piermario Repetto
Piero Perlo
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.)
Centro Ricerche Fiat SCpA
Original Assignee
Centro Ricerche Fiat SCpA
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 Centro Ricerche Fiat SCpA filed Critical Centro Ricerche Fiat SCpA
Priority to ES04425280T priority Critical patent/ES2263128T3/es
Priority to EP04425280A priority patent/EP1589282B1/fr
Priority to AT04425280T priority patent/ATE329204T1/de
Priority to DE602004001128T priority patent/DE602004001128T2/de
Publication of EP1589282A1 publication Critical patent/EP1589282A1/fr
Application granted granted Critical
Publication of EP1589282B1 publication Critical patent/EP1589282B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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
    • 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
    • F21S41/20—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
    • 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
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • 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
    • 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
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F21S43/315—Optical layout thereof using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to the field of lighting systems, and in particular lights for motor vehicles, of the type comprising one or more elementary cells, each including: a transparent dielectric module in the form of a plate, with two opposite main faces; a substantially point-like source set in the proximity of a first one of the two main faces of said module; a primary reflector formed on the second of the main faces of the module for reflecting a first time the light coming from the source that has traversed the plate; and a secondary reflector formed on the first main face of said module, for reflecting a second time the light already reflected by the primary reflector and directing it towards the outside of the module, on the side of said second main face, so as to collimate it in a pre-determined direction.
  • a lighting system of the type specified above has already been proposed by the present applicant in the European patent No. EP 0 766 115 B1 and in the corresponding U.S. patent No. US 5 841 596, as likewise in the European patent No. EP 0 767 393 B1 and in the corresponding U.S. patent No. US 5 884 995.
  • the individual collimation cell operates in a mode similar to a telescope of the Cassegrain type.
  • a point-like light source 1 is located in the proximity of a first face I of a transparent plate 2 made of plastic material.
  • the light emitted by the source 1 is coupled within the plate 2 through a transparent portion of said face I, impinges upon a primary reflector 3 set on the second face II of the transparent portion and generally obtained by coating a portion of said face II with a reflecting layer, and is reflected by said primary reflector 3 towards a secondary reflector 4 set on the face I about said transparent portion and generally obtained by coating a portion of said face I with a reflecting layer.
  • the light is again reflected by the secondary reflector 4 towards the face II and exits from the plate through a transparent portion of said face II, undergoing a refraction.
  • the primary reflector 3 and secondary reflector 4 have shapes which are designed for producing in combination a collimation of the beam emitted by the point-like source 1.
  • the point-like source 1 can be located in a position corresponding to the transparent portion of the face 1 and possibly englobed in the plate in a position corresponding to said transparent portion.
  • the purpose of the present invention is to improve the performance of the optical system proposed previously by increasing control of the light distribution and hence the value of intensity in a pre-determined direction.
  • the primary reflector A is radiused to the transparent portion B with a continuous profile and with a continuous curvature, so that the portions C and D of the secondary reflector operate in a substantially exclusive way on the rays reflected by the primary reflector A and by the transparent portion B of the face II, respectively.
  • Figure 2 is a cross-sectional view of a first embodiment of the collimator according to the present invention, in a plane of cross section perpendicular to the plate.
  • the parts corresponding to those of Figure 1 are designated by the same reference numbers.
  • the point-like light source typically a chip-LED
  • the plate, made of synthetic material, is designated by 2, and I and II designate the two main faces of the plate 2 on which the primary reflector 3 and the secondary reflector 4 are formed.
  • the primary reflector 3 has a central section A, which is reflecting in so far as it is equipped with a reflecting coating 5, and a peripheral section B, which does not have a reflecting coating, but gives rise to a total internal reflection (TIR) of the rays of light coming from inside the plate with an angle of inclination with respect to the vertical direction of the figure greater than a given value.
  • TIR total internal reflection
  • the profile of the right-hand part (with reference to the figure) of the section A of the primary reflector is a profile of parabola with focus in a point corresponding to the source and axis AX inclined by an angle ⁇ with respect to the vertical.
  • the left-hand part of the section A has likewise an axis passing through the source and set in a way specularly symmetrical with respect to the axis AX. Consequently, said section A collimates the rays emitted by the source with an angle ⁇ on the secondary reflector C.
  • the size of the primary reflector A is such as to subtend an angle with respect to the source again equal to ⁇ , so that the point of radiusing between the sections A and B is continuous both in profile and in curvature.
  • the angle ⁇ is chosen so as to be greater than the TIR angle so as to guarantee conditions of TIR on the entire section B of the face II. The choice of an angle slightly greater than the TIR angle enables minimization of the size of the primary reflector A.
  • the rays reflected by the primary reflector A are subsequently reflected by the secondary reflector C.
  • the rays reflected by the transparent portion B are instead reflected by the secondary reflector D.
  • the light is installed on a motor vehicle so that the axis z perpendicular to the surface of the cell is substantially parallel to the longitudinal axis of the vehicle.
  • the primary reflector A generates an annular image of the point-like source. Said image can be: at infinity, in the case of section A being parabolic; virtual, in the case of section A being hyperbolic; or real, in the case of section A being elliptical.
  • the transparent reflecting portion B generates, instead, a virtual point-like image of the chip-LED.
  • the secondary reflector C is a complex surface that operates on the rays reflected by the primary reflector A in order to generate a desired distribution of light.
  • the secondary reflector D operates, instead, on the rays reflected by the transparent reflector B to generate a desired distribution of light.
  • Each of the two surfaces C and D can be segmented into a number of sectors so as to have an envelope in common (and continuous in the point of radiusing).
  • the light cannot be positioned perpendicular to the longitudinal axis of the vehicle, but rather inclined with respect to two angles: the first is formed by rotating the light with respect to the axis Y (which exits from the plane of the figure); the second is formed by rotating it with respect to the axis X (see Figure 4).
  • Figure 3 shows precisely a cell of the light according to the invention, designed for being installed so as to have the axis of the reflector oriented by the angle ⁇ with respect to the longitudinal axis of the motor vehicle.
  • the primary reflector A is constituted by a surface of an elliptical, parabolic or hyperbolic type.
  • Figure 3 represents the case of a parabolic type (similar to Figure 2), in which the axis of rotation of the parabola has an angle ⁇ with respect to the straight line perpendicular to the faces of the cell.
  • the choice of the type of surface of the primary reflector A is dictated by the angle ⁇ , by the thickness of the device, and by considerations regarding the luminance of the cell.
  • Figure 5A illustrates a case where the surface of the primary is of a parabolic type, and the angle of collimation ⁇ is such that a part of the light reflected by the secondary reflector C arrives again on the primary reflector (in the portion designated by 4); this entails a loss of efficiency of the device or, in any case, a loss of control of part of the light. In order to prevent this effect, it is possible to resort, in the case of Figure 5A, to a different shape of the primary reflector.
  • Figure 5B illustrates a type of primary reflector A of elliptical cross section with one focus in the source and the other focus determined with the following methodology: considering the left-hand side of the profile of the cell of Figure 5B, the focus 2 is determined as the intersection of the two extreme rays 1 and 4 reflected by the primary reflector A.
  • the point 1 is the point of intersection between the primary reflector A and the transparent section B, the TIR angle determines the ray reflected by the point 1 of the primary reflector.
  • the ray reflected by the point 4 is chosen so that the ray reflected by the secondary reflector C will exit from the cell with an angle ⁇ passing through the point 1, preventing it from arriving back, as occurred in the case of Figure 5A on the primary reflector A.
  • the focus 2 of the primary reflector A determines an area 3 of the transparent section B from which rays do not exit. Said area 3 will present as an area of shadow, if the observer is positioned in the direction given by the angle ⁇ .
  • the configuration of Figure B enables efficiency/control of the light emitted by the device not to be lost, but leads to an extension of the area of shadow represented by the primary reflector A.
  • the primary reflector A can be built not having rotational symmetry as indicated in Figure 5C.
  • the cross section of Figure 5C illustrates a surface having a cross section of an elliptical type in the left-hand area of the profile of the cell and of a parabolic type in the right-hand area.
  • the secondary reflector in this example of light, is not a surface of rotation.
  • the part of reflector C deflects the rays coming from the primary reflector A so that, after the interface B, they will exit with a preferential angle ⁇ to form the desired distribution of intensity.
  • the part of reflector D receives the rays that impinge upon the interface B with an angle greater than the limit angle (TIR) and deflects them according to the same principle as that of the reflector C.
  • TIR limit angle
  • the part of transparent surface B may be smooth, in which case the distribution of intensity is created by the reflecting surfaces C and D; there may be provided an additional transparent portion, on the internal surface of which there are present microlenses or prisms calculated so as to widen the distribution of light.
  • Figure 6 is an example of configuration in which the array of microlenses is inserted in the internal part of a transparent portion set in front of the individual elementary cells. Said transparent portion bearing the microlenses may be colourless or else coloured.
  • the dielectric plate which is designed for collimating the light emitted by the sources can be coloured; in both cases, the colour of the transparent portion must be such as to transmit all or almost all of the light of the wavelength emitted by the corresponding microsource or microsources.
  • Figure 7 is a front view of a hexagonal elementary cell.
  • the chip-LED source is positioned in the centre and is visible in so far as the primary reflector A has been masked in order to highlight the absence of rotational symmetry of the secondary reflectors C and D.
  • Figure 8 represents the distribution of intensity in which the excellent degree of control of the outgoing beam is highlighted.
  • the value of efficiency of the device is equal to 70%, with a value of reflectance of the reflecting surfaces of 0.85.
  • the number of sources for each individual cell that forms part of the light does not emerge as a constraint. It is in fact possible to set alongside one another a number of microsources about the axis of the individual elementary cell in order to increase the flow of light.
  • Figure 9 illustrates, by way of example, a case in which a multitude of cells with a hexagonal shape have been set alongside one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP04425280A 2004-04-21 2004-04-21 Feu pour véhicules, sous forme de plaque mince Expired - Lifetime EP1589282B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES04425280T ES2263128T3 (es) 2004-04-21 2004-04-21 Faro en forma de placa delgada para vehiculos automoviles.
EP04425280A EP1589282B1 (fr) 2004-04-21 2004-04-21 Feu pour véhicules, sous forme de plaque mince
AT04425280T ATE329204T1 (de) 2004-04-21 2004-04-21 Dünne, plattenförmige kraftfahrzeugleuchte
DE602004001128T DE602004001128T2 (de) 2004-04-21 2004-04-21 Dünne, plattenförmige Kraftfahrzeugleuchte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425280A EP1589282B1 (fr) 2004-04-21 2004-04-21 Feu pour véhicules, sous forme de plaque mince

Publications (2)

Publication Number Publication Date
EP1589282A1 true EP1589282A1 (fr) 2005-10-26
EP1589282B1 EP1589282B1 (fr) 2006-06-07

Family

ID=34932449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425280A Expired - Lifetime EP1589282B1 (fr) 2004-04-21 2004-04-21 Feu pour véhicules, sous forme de plaque mince

Country Status (4)

Country Link
EP (1) EP1589282B1 (fr)
AT (1) ATE329204T1 (fr)
DE (1) DE602004001128T2 (fr)
ES (1) ES2263128T3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008199A1 (de) * 2006-02-22 2007-08-23 Hella Kgaa Hueck & Co. Leuchteneinheit für Fahrzeuge
EP2009348A2 (fr) 2007-06-29 2008-12-31 Dialight Lumidrives Limited Éclairage spatial amélioré
NL1037239C2 (nl) * 2009-08-31 2011-03-01 Spanninga Metaal Rijwiel en achterlicht voor een rijwiel.
CN102506322A (zh) * 2011-10-31 2012-06-20 中国科学院长春光学精密机械与物理研究所 一种用于光栅尺的平板型led高度准直照明系统
CN102588787A (zh) * 2012-02-14 2012-07-18 杭州光锥科技有限公司 基于反射透射型均匀大功率led光源
JP2012164562A (ja) * 2011-02-08 2012-08-30 Koito Mfg Co Ltd 車両用前照灯
US20160195243A1 (en) * 2013-08-22 2016-07-07 Philips Lighting Holding B.V. Optical system for producing uniform illumination
EP2484964A3 (fr) * 2011-02-08 2016-07-13 Koito Manufacturing Co., Ltd. Unité de lampe
EP2503224B1 (fr) * 2011-03-25 2020-08-05 Stanley Electric Co., Ltd. Unité d'éclairage de véhicule
WO2023088716A1 (fr) * 2021-11-16 2023-05-25 HELLA GmbH & Co. KGaA Élément de guidage de lumière pour un dispositif d'éclairage pour un véhicule automobile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5152572B2 (ja) * 2008-03-24 2013-02-27 スタンレー電気株式会社 車両前照灯
WO2023012651A1 (fr) * 2021-08-02 2023-02-09 Varroc Engineering Limited Ensemble de feux arrière de véhicule

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999009349A1 (fr) * 1997-08-12 1999-02-25 Decoma International Inc. Lentille bireflective
US6068382A (en) * 1996-05-09 2000-05-30 Matsushita Electric Industrial Co., Ltd. Panel-form illuminating system
DE20206829U1 (de) * 2002-04-30 2002-09-05 Automotive Lighting Reutlingen Leuchte, insbesondere Begrenzungsleuchte
EP1367318A1 (fr) * 2002-05-31 2003-12-03 Valeo Vision Feu de signalisation comportant une pièce optique réalisant une fonction de signalisation de manière autonome
US20040047161A1 (en) * 2002-09-09 2004-03-11 Koito Manufacturing Co., Ltd. Vehicular marker lamp
US20040070989A1 (en) * 2002-07-04 2004-04-15 Koito Manufacturing Co., Ltd. Vehicle lamp
US20040070855A1 (en) * 2002-10-11 2004-04-15 Light Prescriptions Innovators, Llc, A Delaware Limited Liability Company Compact folded-optics illumination lens

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6068382A (en) * 1996-05-09 2000-05-30 Matsushita Electric Industrial Co., Ltd. Panel-form illuminating system
WO1999009349A1 (fr) * 1997-08-12 1999-02-25 Decoma International Inc. Lentille bireflective
DE20206829U1 (de) * 2002-04-30 2002-09-05 Automotive Lighting Reutlingen Leuchte, insbesondere Begrenzungsleuchte
EP1367318A1 (fr) * 2002-05-31 2003-12-03 Valeo Vision Feu de signalisation comportant une pièce optique réalisant une fonction de signalisation de manière autonome
US20040070989A1 (en) * 2002-07-04 2004-04-15 Koito Manufacturing Co., Ltd. Vehicle lamp
US20040047161A1 (en) * 2002-09-09 2004-03-11 Koito Manufacturing Co., Ltd. Vehicular marker lamp
US20040070855A1 (en) * 2002-10-11 2004-04-15 Light Prescriptions Innovators, Llc, A Delaware Limited Liability Company Compact folded-optics illumination lens

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008199A1 (de) * 2006-02-22 2007-08-23 Hella Kgaa Hueck & Co. Leuchteneinheit für Fahrzeuge
DE102006008199B4 (de) * 2006-02-22 2016-02-04 Hella Kgaa Hueck & Co. Leuchteneinheit für Fahrzeuge
EP2009348A2 (fr) 2007-06-29 2008-12-31 Dialight Lumidrives Limited Éclairage spatial amélioré
EP2009348A3 (fr) * 2007-06-29 2011-06-29 Dialight Lumidrives Limited Éclairage spatial amélioré
US8147099B2 (en) 2007-06-29 2012-04-03 Dialight Lumidrives Limited Apparatus and method for receiving light from a point-like source and emitting light over an extended surface area
NL1037239C2 (nl) * 2009-08-31 2011-03-01 Spanninga Metaal Rijwiel en achterlicht voor een rijwiel.
EP2484964A3 (fr) * 2011-02-08 2016-07-13 Koito Manufacturing Co., Ltd. Unité de lampe
JP2012164562A (ja) * 2011-02-08 2012-08-30 Koito Mfg Co Ltd 車両用前照灯
EP2503224B1 (fr) * 2011-03-25 2020-08-05 Stanley Electric Co., Ltd. Unité d'éclairage de véhicule
CN102506322A (zh) * 2011-10-31 2012-06-20 中国科学院长春光学精密机械与物理研究所 一种用于光栅尺的平板型led高度准直照明系统
CN102588787A (zh) * 2012-02-14 2012-07-18 杭州光锥科技有限公司 基于反射透射型均匀大功率led光源
US10295153B2 (en) * 2013-08-22 2019-05-21 Signify Holding B.V. Optical system for producing uniform illumination
US20160195243A1 (en) * 2013-08-22 2016-07-07 Philips Lighting Holding B.V. Optical system for producing uniform illumination
WO2023088716A1 (fr) * 2021-11-16 2023-05-25 HELLA GmbH & Co. KGaA Élément de guidage de lumière pour un dispositif d'éclairage pour un véhicule automobile

Also Published As

Publication number Publication date
ES2263128T3 (es) 2006-12-01
EP1589282B1 (fr) 2006-06-07
DE602004001128D1 (de) 2006-07-20
ATE329204T1 (de) 2006-06-15
DE602004001128T2 (de) 2006-12-14

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