EP0230834A1 - Signalleuchte mit farbigem Leuchten für Fahrzeuge - Google Patents

Signalleuchte mit farbigem Leuchten für Fahrzeuge Download PDF

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Publication number
EP0230834A1
EP0230834A1 EP86402901A EP86402901A EP0230834A1 EP 0230834 A1 EP0230834 A1 EP 0230834A1 EP 86402901 A EP86402901 A EP 86402901A EP 86402901 A EP86402901 A EP 86402901A EP 0230834 A1 EP0230834 A1 EP 0230834A1
Authority
EP
European Patent Office
Prior art keywords
reflector
filter
signaling
light according
mirror
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
EP86402901A
Other languages
English (en)
French (fr)
Other versions
EP0230834B1 (de
Inventor
Gilbert Dilouya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Cibie Projecteurs SA
Valeo Vision SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cibie Projecteurs SA, Valeo Vision SAS filed Critical Cibie Projecteurs SA
Publication of EP0230834A1 publication Critical patent/EP0230834A1/de
Application granted granted Critical
Publication of EP0230834B1 publication Critical patent/EP0230834B1/de
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
    • 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
    • F21S43/20—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
    • F21S43/255—Filters
    • 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
    • F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/08—Combinations of only two kinds of elements the elements being filters or photoluminescent elements and reflectors

Definitions

  • the present invention relates generally to signaling lights of motor vehicles, and more particularly relates to a signaling light intended to emit colored light radiation.
  • the coloring of the light is given by the glass or the globe for closing the light, which is appropriately tinted.
  • FIG. 1 An example of such a light is shown diagrammatically in FIG. 1, in horizontal section passing through the optical axis. It includes a lamp 10, emitting white light, a reflector 12 and a closing glass 14.
  • a balloon 16 or even a plate, or any other suitable element, forming a filter colored, for example amber for a flashing light, is interposed between the lamp and the reflector.
  • the balloon is partially masked on its outer surface by a cover 18 which is substantially impermeable to light from the outside to the inside, and substantially permeable in the opposite direction.
  • the cover 18, which can also be reflective towards the outside, contributes to attenuating the amber aspect of the fire when the lamp is off and when it is observed from the outside.
  • the filtering balloon must leave a space around the lamp large enough to avoid excessive heating inside it. Its size is therefore relatively large.
  • the cover must not cover an excessive proportion of the surface of the ball, as it influences the light output of the fire, which cannot be excessively reduced. For these reasons, the amber color of the extinguished fire as observed from the outside is certainly attenuated, but it remains however clearly perceptible.
  • the present invention aims to propose a light signaling light for a self-propelled vehicle, such as a direction indicator flashing light, the general appearance of which is colorless when the light is off, with of course the suitably colored light function in the on state.
  • the present invention relates to a signaling light for a vehicle, such as a motor vehicle, capable of emitting a signaling light radiation colotated through a colorless closing glass, characterized in that it comprises a reflector of parabolic type having a focus, a window in the reflector in the bottom region thereof, a color filter disposed in the window, means for emitting a concentrated beam of white light passing through the filter and directed towards the focus region of the reflector, and a mirror arranged in this region to return the rays of said beam, colored by the filter, to the whole of the reflector, the latter emitting said colored signaling radiation through the closing glass.
  • the general direction of the beam is aligned with the optical axis of the reflector.
  • the means for emitting a concentrated beam of white light comprises a filament lamp and a second reflector.
  • the filter placed in the window of the reflector, which is small and located substantially behind the mirror in relation to the observer. Only a very small proportion of the rays coming from the outside meets this filter, and the general appearance of the fire is therefore perfectly colorless.
  • the signaling light comprises a light source 20, such as a tungsten filament lamp, capable of emitting white light.
  • the lamp base is mounted in a socket 22 secured to a first reflector 24 of optical axis X-X.
  • the reflector 24 is in the present example elliptical, and therefore comprises two focal points. Its first focal point F1 is substantially coincident with the filament of the lamp, and its second focal point is located further forward (to the right in FIG. 2) on the optical axis X-X.
  • the light comprises a second reflector constituted by two concentric parts 24 ⁇ and 26, forming together a reflector, for example parabolic hearth F ⁇ and having the same optical axis XX as the reflector 24.
  • the parts 24 ⁇ and 26 are arranged so that their common focus F ⁇ is located in the vicinity of the second focus F2 of the first reflector 24. In the present example, the focus F ⁇ is located slightly in front of the focal point F2.
  • the elliptical reflector 24 and the outer part 24 ⁇ of the parabolic reflector are integral and formed in one piece, the inner end edge of the part 24 ⁇ here being connected by a cylindrical section 24 ⁇ to the elliptical reflector 24.
  • the second part 26 of the parabolic reflector arranged centrally, is attached to the first 24 ⁇ by any suitable fixing means, for example by gluing the outer peripheral edge of the central part 26 to the adjacent inner edge of the part 24 ⁇ device.
  • the second reflector 24 ⁇ , 26 can also be produced in a single part, which will be attached by any suitable means to the free end of the intermediate cylindrical part 24 ⁇ .
  • a cup or cup-shaped element 28, forming a mirror on its outer surface, is placed in the region of the two foci F2 and F ⁇ , It consists in the present example in a hemispherical mirror centered on the optical axis XX of the light and arranged so as to pass approximately through the focal point F ⁇ of the parabolic reflector 24 ⁇ -26.
  • the element 28 can be held in this position using one or more arms (not shown), preferably in one transparent plastic, extending for example from the region of the outer edge of the 24 ⁇ part of the parabolic reflector.
  • the signaling light further comprises a coloring filter 30 which is received in a window (not referenced) formed in the wall of the central part 26 of the parabolic reflector in the region of the bottom thereof.
  • the filter 30 is produced in the present example from a tinted plastic material of amber color or the like, and extends between the mirror 28 and the lamp 20. Its center is located on the optical axis X-X. We can also observe that the diameter of the filter 30 is substantially equal to that of the mirror 28. We have shown in the figure a filter 30 whose shape matches that of the parabola 26. It is understood that a flat filter can also give satisfaction.
  • the central part 26 of the parabolic reflector and the filter 30 can be produced in the following manner: the body of this central part 26 is made of transparent colored plastic (amber in the present example) ), and the entire surface of said body, with the exception of its circular central region, which will thus define the filter 30, will be made reflective, for example by a vacuum metallization step or the like.
  • the signaling light comprises a closing globe or glass 32 comprising, for example on its inner surface, streaks or balls 34 for scattering and / or dispersing light.
  • the closing glass 32 is colorless, and made for example of plastic.
  • the above traffic light behaves as follows.
  • the lamp 20 When the lamp 20 is on, it creates in combination with the elliptical reflector 24 a concentrated beam of white light which converges towards the second focus F2 of said reflector.
  • this beam is intercepted by the colored filter 30, and therefore arrives in the interior space of the parabolic reflector 24 ⁇ -26 having taken on an amber, or yellow-orange color, as required by certain regulations for the fire function. turn signal.
  • the arrangement of the mirror 28 is such that it also intercepts the converging beam slightly downstream from its point of convergence F2, as indicated by the straight lines 36 which schematize various ray paths of the beam. These rays are reflected by the mirror while being distributed over the entire extent of the parabolic reflector 26.
  • the mutual arrangement of the focal points F2 and F ⁇ and of the mirror 28, as well as the diameter of the latter, are chosen so that all the rays reflected by the mirror seem to emanate approximately from the focal point F ⁇ of the parabola 24 ⁇ -26.
  • the lamp 20, the elliptical reflector 24, the patch or filtering area 30 and the mirror 28 contribute in combination to create, in the region of the focus F ⁇ of the parabolic reflector 24 ⁇ -26, a virtual source of light colorful.
  • the fire therefore behaves in a manner completely analogous to a fire comprising a source of colored light and a parabolic reflector, the focus of which is located in the vicinity of the source, to create a colored beam suitable in the present example for direction indicator or distress signaling light function.
  • the only colored part of the latter namely the pellet or filtering zone 30, is largely masked by the mirror 28, of colorless appearance.
  • the dispersing elements 34 provided on the inner surface of the closing glass 32 have the effect of "diluting" the very small proportion of amble light reflected by the fire in the predominant white light which comes out after reflection.
  • the quality of the result obtained is due to the fact that, in contrast to the solutions of the prior art, the filtering element giving the coloring is carried outside the volume defined by the parabola 24 ⁇ -26 and the glass closing 32.
  • its interior surface, facing the closing glass can also be made to be reflective.
  • the fire described above with reference to FIG. 2 is only an example of a reaction. reading among others.
  • the means for creating the concentrated beam of white light directed towards the filter 30 may alternatively be constituted by a light source in combination with a reflector and / or a lens of any shape. In this regard, tests have shown that, even when the concentrated beam passing through the filter 30 is not specifically convergent, the quality of the result obtained remains satisfactory.
  • the filter 30, in most circular cases, will be given the smallest possible diameter, and preferably equal to the diameter of the beam at this location.
  • the mirror 28 may more generally consist of any part of revolution, such as a cone, a paraboloid, etc., made reflective and capable of distributing the colored beam which it receives towards the parabolic reflector.
  • the geometric arrangement of the various elements, and in particular the relationship between the mirror 28, its center, and the foci F ⁇ and F2 may be entirely arbitrary, provided that, by empirical tests or by calculation , we obtain both a colored beam of correct intensity and distribution at the exit of the fire, and a reasonably little colored appearance, when the fire is extinguished, in external observation.
  • the point of convergence F2 of the converging beam may be located both in front of and behind the adjacent surface of the mirror 28.
  • a traffic light has been described above, the amber coloration of the beam of which corresponds to the flashing light function. It is understood that the beam can be given, by means of the filter 30, any suitable coloring, for example red to fulfill the functions of stop light and / or position light.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP86402901A 1985-12-24 1986-12-22 Signalleuchte mit farbigem Leuchten für Fahrzeuge Expired - Lifetime EP0230834B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8519158 1985-12-24
FR8519158A FR2591968B1 (fr) 1985-12-24 1985-12-24 Feu de signalisation a eclairement colore pour vehicule automobile

Publications (2)

Publication Number Publication Date
EP0230834A1 true EP0230834A1 (de) 1987-08-05
EP0230834B1 EP0230834B1 (de) 1991-01-16

Family

ID=9326150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402901A Expired - Lifetime EP0230834B1 (de) 1985-12-24 1986-12-22 Signalleuchte mit farbigem Leuchten für Fahrzeuge

Country Status (4)

Country Link
EP (1) EP0230834B1 (de)
DE (1) DE3676991D1 (de)
ES (1) ES2020195B3 (de)
FR (1) FR2591968B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8809051U1 (de) * 1988-07-14 1988-09-01 Hella KG Hueck & Co, 4780 Lippstadt Signalleuchte
US5777809A (en) * 1995-07-28 1998-07-07 Koito Manufacturing Co., Ltd. Reflection mirror for a vehicle lamp and a method of forming the same
GB2325515A (en) * 1997-05-22 1998-11-25 Koito Mfg Co Ltd Vehicle signalling light with wide angle illumination
EP0997346A1 (de) * 1998-10-29 2000-05-03 Reitter & Schefenacker GmbH & Co. KG Aussenrückspiegel für Fahrzeuge, insbesondere Kraftfahrzeuge
DE19940410A1 (de) * 1999-08-26 2001-03-01 Hella Kg Hueck & Co Blinkleuchte für Fahrzeuge
EP1126211A3 (de) * 2000-02-18 2004-01-14 Volkswagen Aktiengesellschaft Projektionsscheinwerfer für ein Kraftfahrzeug
US6986594B2 (en) 2002-04-18 2006-01-17 Valeo Wischersystem Gmbh Lighting device for motor vehicles
FR2923579A1 (fr) 2007-11-13 2009-05-15 Peugeot Citroen Automobiles Sa Projecteur d'eclairage de vehicule automobile, a module elliptique.
EP2085685A1 (de) 2008-01-31 2009-08-05 Peugeot Citroen Automobiles SA Beleuchtungsscheinwerfer, insbesondere mit elliptischem Modul, für Kraftfahrzeug mit Energierückgewinnung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417695C2 (de) * 1994-05-20 1998-01-29 Reitter & Schefenacker Gmbh Kraftfahrzeugleuchte
GB9703712D0 (en) * 1997-02-22 1997-04-09 Britax Vega Ltd Vehicle signal lamp
US8425096B2 (en) 2009-02-02 2013-04-23 Visteon Global Technologies, Inc. Signal light of mirror type

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2154936A5 (de) * 1971-09-30 1973-05-18 Ducellier & Cie
FR2466703A1 (fr) * 1979-09-28 1981-04-10 Bosch Gmbh Robert Indicateur de direction pour vehicules automobiles
FR2476798A1 (fr) 1980-02-25 1981-08-28 Cibie Projecteurs Feu, notamment pour la signalisation de vehicules automobiles
FR2501333A1 (fr) 1981-03-09 1982-09-10 Cibie Projecteurs Feu notamment destine a la signalisation sur un vehicule automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2154936A5 (de) * 1971-09-30 1973-05-18 Ducellier & Cie
FR2466703A1 (fr) * 1979-09-28 1981-04-10 Bosch Gmbh Robert Indicateur de direction pour vehicules automobiles
FR2476798A1 (fr) 1980-02-25 1981-08-28 Cibie Projecteurs Feu, notamment pour la signalisation de vehicules automobiles
FR2501333A1 (fr) 1981-03-09 1982-09-10 Cibie Projecteurs Feu notamment destine a la signalisation sur un vehicule automobile

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8809051U1 (de) * 1988-07-14 1988-09-01 Hella KG Hueck & Co, 4780 Lippstadt Signalleuchte
US5777809A (en) * 1995-07-28 1998-07-07 Koito Manufacturing Co., Ltd. Reflection mirror for a vehicle lamp and a method of forming the same
GB2325515A (en) * 1997-05-22 1998-11-25 Koito Mfg Co Ltd Vehicle signalling light with wide angle illumination
GB2325515B (en) * 1997-05-22 1999-04-28 Koito Mfg Co Ltd Vehicle lamp
EP0997346A1 (de) * 1998-10-29 2000-05-03 Reitter & Schefenacker GmbH & Co. KG Aussenrückspiegel für Fahrzeuge, insbesondere Kraftfahrzeuge
DE19940410A1 (de) * 1999-08-26 2001-03-01 Hella Kg Hueck & Co Blinkleuchte für Fahrzeuge
EP1126211A3 (de) * 2000-02-18 2004-01-14 Volkswagen Aktiengesellschaft Projektionsscheinwerfer für ein Kraftfahrzeug
US6986594B2 (en) 2002-04-18 2006-01-17 Valeo Wischersystem Gmbh Lighting device for motor vehicles
FR2923579A1 (fr) 2007-11-13 2009-05-15 Peugeot Citroen Automobiles Sa Projecteur d'eclairage de vehicule automobile, a module elliptique.
EP2085685A1 (de) 2008-01-31 2009-08-05 Peugeot Citroen Automobiles SA Beleuchtungsscheinwerfer, insbesondere mit elliptischem Modul, für Kraftfahrzeug mit Energierückgewinnung

Also Published As

Publication number Publication date
FR2591968A1 (fr) 1987-06-26
ES2020195B3 (es) 1991-08-01
DE3676991D1 (de) 1991-02-21
FR2591968B1 (fr) 1988-04-01
EP0230834B1 (de) 1991-01-16

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