EP1300626A2 - Réflecteur pour une lampe, tel qu'un feu arrière, un projecteur ou l' éclairage intérieur d' un véhicule - Google Patents

Réflecteur pour une lampe, tel qu'un feu arrière, un projecteur ou l' éclairage intérieur d' un véhicule Download PDF

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Publication number
EP1300626A2
EP1300626A2 EP02020627A EP02020627A EP1300626A2 EP 1300626 A2 EP1300626 A2 EP 1300626A2 EP 02020627 A EP02020627 A EP 02020627A EP 02020627 A EP02020627 A EP 02020627A EP 1300626 A2 EP1300626 A2 EP 1300626A2
Authority
EP
European Patent Office
Prior art keywords
reflector
reflector according
illuminant
reflector surface
lamp
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Withdrawn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
EP02020627A
Other languages
German (de)
English (en)
Other versions
EP1300626A3 (fr
Inventor
Andreas Erber
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.)
Odelo GmbH
Original Assignee
Odelo 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 Odelo GmbH filed Critical Odelo GmbH
Publication of EP1300626A2 publication Critical patent/EP1300626A2/fr
Publication of EP1300626A3 publication Critical patent/EP1300626A3/fr
Withdrawn legal-status Critical Current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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • 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]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F21S41/145—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device the main emission direction of the LED being opposite to the main emission direction 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
    • F21S41/333—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas with discontinuity at the junction between adjacent areas
    • 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
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—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
    • 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
    • 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
    • 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
    • F21W2106/00—Interior vehicle lighting devices
    • 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 invention relates to a reflector for a lamp, such as a rear lamp, a headlight or interior lighting of a motor vehicle, according to the preamble of claim 1.
  • Lights such as headlight units
  • a lamp in which in a luminaire housing behind a lens a lamp is arranged, the light from a reflector for Lens is reflected.
  • Such lights need a big one Installation space.
  • the reflector surfaces can be such Steaming lights poorly.
  • the light exit surface not designed to be of any size given the depth of the luminaire become, so that in such cases, multiple illuminants are required are.
  • the invention has for its object a reflector of this type to be designed in such a way that the greatest possible with a low overall height Luminous area can be achieved.
  • the reflector surface runs rising towards the illuminant. This can do that Illuminants arranged relatively close to the reflector surface his.
  • the light emitted by the illuminant falls completely on the Reflector surface and can be used specifically for light distribution.
  • An LED is preferably used as the illuminant. It is enough a single LED to get a large illuminated area.
  • the lamp provided with the reflector according to the invention has only shallow depth because the illuminant is only a short distance from Reflector surface can be arranged.
  • FIG. 1 and 6 show a reflector for a lamp, in particular for headlights of motor vehicles.
  • the reflector has a ' Ring body 5, of which only a part is shown in Fig. 1.
  • the the reflector-receiving housing (not shown) has a Housing opening with a (also not shown) lens is covered.
  • the ring body 5 there is an LED as the illuminant 1 arranged, which is fastened on a support 2 via a holding foot 3 is.
  • the LED 1 is arranged at a distance in front of a reflector 4 Is part of the ring body 5.
  • the carrier 2 of the LED 1 is preferably designed as an elongated web (Fig. 6), which consists of transparent plastic and with conductor tracks is provided for power supply.
  • the reflector 4 has an inner reflector surface 6, which is the outside of a rotating body 18, the generatrix of which is part of a Is parabola that is rotated about a center line M.
  • the resulting Rotary body 18 has a tip lying in the center line M. 8.
  • the focal point 9 of the reflector also lies on the center line M. 4 or of the rotating body 18.
  • the reflector surface 6 is in axial section concavely curved.
  • the reflector part 7 is in two adjoining Ring parts 10, 10 'divided, each of pillow-shaped reflector sections 12 exist. Those located in a ring part 10, 10 ' Reflector sections 12 are advantageously the same size (Fig. 6) and connect to each other.
  • the reflector sections 12 of the ring part 10 are advantageously the same size as the reflector sections 12 of the Ring part 10 '. In the top view, the reflector sections 12 are rectangular Outline.
  • the reflector sections are located in the two ring parts 10, 10 ' 12 in the vertical direction of the reflector 4 one behind the other. Thereby grooves 11 are formed between the reflector sections (FIG. 6) formed, which run straight in plan view of the reflector 4 and from the edge 16 of the reflector surface 6 to the outer edge 17 of the reflector 4 extend.
  • the outer reflector 7 projects beyond Tip of the inner reflector body 18 and the LED
  • the reflector 4 is designed so that the emitted by the LED 1 Beams 13 completely captured and used for light distribution become.
  • the light rays diverging from LED 1 13 first hit the reflector surface 6. It reflects the Light rays 13 to the reflector part 7, on which they are directed outwards (Not shown) lens will be reflected.
  • the light beams 13 are scattered by reflector sections 12. It is also possible to use the outer reflector part 7 as a cone part train. Since no scattering optics, such as the reflector sections 12, are provided, the light 13 becomes parallel in this case Beams of light reflected outwards.
  • the reflector 4 described can be used for all types of lighting are used, such as for vehicle rear lights, Motor vehicle headlights, automotive interior lighting as well as lighting devices of all kinds.
  • pillow-shaped reflector sections 12 can be used as a scattering optics also roller-shaped reflector sections or any other way trained reflection sections provided in the outer reflector part 7 his.
  • the lens does not need a spreading function to take over for the light and can therefore be considered simple, inexpensive Disc be formed.
  • the reflector surface 6a having rotating body 18a a generatrix, which is part of an ellipse and is rotated about the center line M.
  • the outer reflector part 7a has a reflector surface which lies on a cone jacket. It extends from the outer edge 16a of the reflector surface 6a of the reflector 4a to the outer edge 17a of the reflector part 7a.
  • the tip 8a is in the center of the rotating body 18a or the reflector 4a.
  • the reflector surface 6a is concavely curved in axial section.
  • the reflector surfaces are 6a of the rotating body 18a and the reflector surface of the reflector part 7a again arranged so that the LED 1a outgoing light rays 13a on the reflector surface 6a fall and are reflected there to the outer reflector part 7a, the it reflects to the lens.
  • the design of the reflector surface 6a determines the resulting spread.
  • the reflector part 7a can also be covered with scattering optics.
  • the outer reflector part 7a has a smaller axial extent than that Reflector part 7 and extends to about the height of the tip 8a. Because the reflector part 7a has no scattering function, is the lens (not shown) the luminaire is designed with a diffusing lens.
  • the LED is 1a arranged as in the previously described embodiment, that its focal point lies in the focal point 9a of the rotating body 18a. The LED 1a lies in the focal point outside the reflector 4a.
  • both the reflector surface 6a and that Reflector part 7a each perform a scattering function.
  • the reflector surface 6b of the rotating body 18b two adjoining ring zones 6b ' and 6b ", whose generators are part of a parabola.
  • the parabolic parts are inclined differently.
  • the radially inner one Parabolic part (ring zone 6b ') is steeper than the outer part Parabolic part (ring zone 6b ").
  • the rotating body 18b has the central tip 8b, which like the focal point 9b of the reflector 4b in the center line M lies.
  • the outer reflector part 7b also consists of two adjoining ring zones 7b 'and 7b ", each have a conical surface as a reflector surface.
  • the outer surface of the cone (Ring zone 7b ") is steeper than the inner surface of the cone (Ring zone 7b ').
  • the ring zones 7b ', 7b " can be pillow-like, have roller-like or any other scattering optics.
  • LED 1b lies within the Reflector 4b.
  • the light beams 13b emitted by the LED 1b reach the Reflector surfaces of the ring zones 6b ', 6b ", on which they go to the reflector surfaces of the ring zones 7b ', 7b "are reflected the light beams 13b parallel to each other and to the center line M out of the reflector 4b to the lens of the respective lamp reflected.
  • the ring zone 6b ' is the ring zone 7b' and the ring zone 6b "assigned to the ring zone 7b".
  • the central rotational body 18c provided with diffusing optics 6c ', 6c ", 14, which are preferably pillow optics are and are each on parabolas.
  • diffusing optics 6c ', 6c ", 14 which are preferably pillow optics are and are each on parabolas.
  • On the surrounding outer Edge 16c of the rotating body 18c closes the conical surface of the outer reflector part 7c.
  • the conical surface can be designed with a scattering optics.
  • the reflector part 7c has as in the embodiment of FIG. 1 much larger axial extent than the rotating body 18c.
  • the focal point 9c of the reflector 4c coincides with the focal point of FIG LED 1c together.
  • the diverging emitted by LED 1c Rays 13c are on the reflector surface 6c of the rotating body 18c reflected to the conical surface of the reflector part 7c of which they are reflected outwards.
  • the LED 1c is centered in the annular reflector 4c.
  • the LED 1d is in the area arranged between a rear wall 15 and the rotating body 18d, which is of the same design as the rotating body 18 according to FIG. 1.
  • the LED 1d is attached to the rear wall 15.
  • the ones she sent Light rays 13d hit the reflector surface 6d of the rotating body 18d, on which the light rays to the outer reflector part 7d be reflected. It is part of an annular wall 19 of the ring body 5d and has a reflector surface lying on a cone jacket. At it, the light rays become a light disk (not shown) reflected.
  • scatter optics can be provided his.
  • the LED 1d is located centrally in the housing 5d.
  • the rotating body 18d partially projects into the space surrounded by the annular wall 19.
  • the rotating body 18d is designed and arranged such that all light rays 13d falling on its reflector surface 6d be reflected to the outer reflector part 7d.
  • the LED 1d will covered by the rotating body 18d against the lens. As a result, the light emitted by the LED does not reach directly Lens, so that high luminance levels and an associated Glare can be avoided.
  • the rotating body 18d can also on provided the lens, preferably integrally formed with it his.
  • the respective rotating body can be considered as externally rotated paraboloid or ellipsoid, which the diverging LED light to a preferably parallel or deliberately forms divergent, outwardly directed beams. With the help of further reflector surfaces 7 to 7c, the light becomes the final one Direction of radiation deflected. Because of the training described of the reflectors becomes a high luminance of the very bright and almost punctiform LED light source avoided.

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  • 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)
EP02020627A 2001-10-05 2002-09-13 Réflecteur pour une lampe, tel qu'un feu arrière, un projecteur ou l' éclairage intérieur d' un véhicule Withdrawn EP1300626A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10149273A DE10149273A1 (de) 2001-10-05 2001-10-05 Reflektor für eine Leuchte, wie eine Heckleuchte, ein Scheinwerfer oder eine Innenbeleuchtung eines Kraftfahrzeuges
DE10149273 2001-10-05

Publications (2)

Publication Number Publication Date
EP1300626A2 true EP1300626A2 (fr) 2003-04-09
EP1300626A3 EP1300626A3 (fr) 2005-11-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020627A Withdrawn EP1300626A3 (fr) 2001-10-05 2002-09-13 Réflecteur pour une lampe, tel qu'un feu arrière, un projecteur ou l' éclairage intérieur d' un véhicule

Country Status (3)

Country Link
US (1) US6722777B2 (fr)
EP (1) EP1300626A3 (fr)
DE (1) DE10149273A1 (fr)

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EP1898146A1 (fr) * 2006-09-11 2008-03-12 Hella lighting Finland Oy Luminaire encastré à LED
EP2103869A1 (fr) * 2008-03-19 2009-09-23 CML Innovative Technologies Système d'éclairage à diode électroluminescente
WO2010089100A1 (fr) * 2009-02-05 2010-08-12 Ultralite Deutschland Haerle Lichttechnik Gmbh Dispositif d'éclairage comportant plusieurs sources de lumière et un système de réflexion et unité de réflecteur
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WO2021191130A1 (fr) * 2020-03-23 2021-09-30 Osram Gmbh Système optique de réflecteur pour une lampe de phare d'adaptation
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US11761601B2 (en) 2020-03-23 2023-09-19 Osram Gmbh Automotive solid-state retrofit headlamp
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Cited By (13)

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Publication number Priority date Publication date Assignee Title
EP1710495A1 (fr) * 2005-04-08 2006-10-11 iGUZZINI ILLUMINAZIONE S.p.A. Dispositif anti-éblouissant pour source lumineuse à LED
EP1898146A1 (fr) * 2006-09-11 2008-03-12 Hella lighting Finland Oy Luminaire encastré à LED
EP2103869A1 (fr) * 2008-03-19 2009-09-23 CML Innovative Technologies Système d'éclairage à diode électroluminescente
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EP1300626A3 (fr) 2005-11-16
US6722777B2 (en) 2004-04-20
DE10149273A1 (de) 2003-04-17
US20030067784A1 (en) 2003-04-10

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