EP0784185A1 - Signalleuchte mit einer Zwischenscheibe zur optischen Behandlung des Lichstrahles und für stilistische Gründe sowie Herstellungsverfahren derselben - Google Patents

Signalleuchte mit einer Zwischenscheibe zur optischen Behandlung des Lichstrahles und für stilistische Gründe sowie Herstellungsverfahren derselben Download PDF

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Publication number
EP0784185A1
EP0784185A1 EP97400031A EP97400031A EP0784185A1 EP 0784185 A1 EP0784185 A1 EP 0784185A1 EP 97400031 A EP97400031 A EP 97400031A EP 97400031 A EP97400031 A EP 97400031A EP 0784185 A1 EP0784185 A1 EP 0784185A1
Authority
EP
European Patent Office
Prior art keywords
facets
screen
signaling light
light according
intermediate screen
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.)
Ceased
Application number
EP97400031A
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English (en)
French (fr)
Inventor
Pierre Albou
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
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP0784185A1 publication Critical patent/EP0784185A1/de
Ceased 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens 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
    • F21S43/255—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
    • 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
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255

Definitions

  • the present invention relates generally to the signaling lights of motor vehicles, and more particularly to a signaling light for a motor vehicle, comprising a substantially point source, a flux recuperator intended to return towards the outside a substantially parallel beam, and an intermediate screen and a lens interposed on the path of the essentially parallel beam.
  • the intermediate screen, and if necessary the lens include optical arrangements intended to give the light the desired photometry and possibly a particular style appearance.
  • An object of the present invention is to provide a signaling light of the aforementioned type which, while satisfying the regulations in terms of photometry, has a new visual appearance both turned off and on.
  • the invention aims to produce a fire which, when extinguished, has a certain shine by promoting the penetration into the fire of incident radiation, in particular plunging radiation such as sunlight, and its re-emission, somewhat analogous to the appearance of faceted gemstones.
  • the invention aims to produce a light which, when lit, gives the impression of comprising a plurality of individual elementary sources, in the manner of light emitting diode lights, and in which this impression is provided in a whole range of angles of observation.
  • the present invention relates to a signaling light of the type defined above, characterized in that the intermediate screen comprises a series of optical cells each comprising, on an inner face a substantially spherical surface for spreading the light and on one side exterior, a set of at least two oblique planar facets with respect to a plane of the intermediate screen.
  • a signaling light which comprises a light source 10, typically a filament lamp 11, a flux recuperator, in this case a paraboloid mirror 20 focused on the filament 11 and formed on the base of the lamp, an intermediate screen 30 and a lens or indicator 40, preferably smooth on two sides, parallel or not to the intermediate screen.
  • the screen 30 and the indicator 40 extend in planes essentially perpendicular to the general direction of the incident beam, defined by the axis of the paraboloid, but it is understood that curved shapes can also be envisaged .
  • the intermediate screen has on its inner face a plurality of surfaces in the form of portions of convex spheres 31 inscribed in rectangular parallelepipeds, in this case squares, defining individual optical cells.
  • the size of the cells is significantly larger than that of the balls or toroids conventionally used in intermediate screens or closing windows.
  • optical elements generally have a side of the order of 2 to 4 mm
  • those of the invention have a side which is advantageously chosen between 5 and 30 mm.
  • the radius of each sphere and the size of the cell are chosen in this case so as to ensure at least the angular deviation imposed by photometric regulations in horizontal or vertical direction.
  • the surfaces 31 are chosen to ensure at least the deviation of ⁇ 20 °.
  • each spherical surface 31 there is provided on the external face of the intermediate screen in association with each spherical surface 31 a set of facets extending parallel to a horizontal and perpendicular line to the optical axis of fire.
  • three facets are provided, namely a central facet 32a perpendicular to the optical axis, and two respectively upper and lower facets 32b, 32c inclined, preferably symmetrically, so that the three facets together define a surface in hollow.
  • the central facet 32a has the object of not deflecting the light vertically, in order mainly to leave a sufficient amount of light in the emission axis.
  • the purpose of the upper and lower facets 32b and 32c is to attenuate the vertical deflection of the radiation provided by the associated sphere 31.
  • two rays R1 and R2 located at the same height and meeting the cell in the vicinity of its lateral edges go deviated laterally mainly by the spherical surface 31, so as to obtain a spread of ⁇ ⁇ , which is the desired spread.
  • two rays R3 and R4 located directly above each other and meeting the cell in the vicinity of the upper and lower edges of an inclined facet 32b or 32c will on the one hand be excessively deviated vertically by the spherical surface 31, then straightened to an appropriate extent by said facet so as to finally obtain the desired vertical spread.
  • the inclination of the facets 32b, 32c is determined (by calculation or by experimentation) mainly as a function of the above.
  • the glass 40 is in this case smooth on its two faces, and therefore does not intervene on the optical plane or on the plane of the appearance of the fire.
  • the color is preferably given either by the bulb of the lamp, or by a colored balloon surrounding the lamp, or by the intermediate screen appropriately tinted, or even by the glass 40.
  • the lower inclined facets 32c form with the general direction of the radiation an angle closer to 90 ° than if these facets were vertical.
  • a larger proportion of the incident light enters the fire and is then returned to the outside thanks to the presence of the mirror 20, which gives the fire a shiny appearance or in other words a certain luster.
  • the regular character of the patterns on the outside of the intermediate screen gives the fire, in conjunction with this brilliance, a faceted gemstone-like appearance which is remarkable in terms of style, because it deviates radically objectives usually sought in this area.
  • each set of recessed facets associated with a spherical surface is delimited laterally by two slightly oblique draft surfaces 32d, which also contribute, by the sharp angles which they define in pairs, to give the aforementioned gemstone effect.
  • FIG. 5 illustrates a first alternative embodiment of the invention.
  • the inner face of the screen 30 is unchanged, while each of the individual spherical surfaces 31 are no longer associated with three facets, but two facets 32b, 32c, oblique and symmetrical.
  • This variant is applicable in particular when the central facet 32a, intended to preserve a significant amount of light in the axis of fire, is no longer necessary.
  • FIG. 6 illustrates a second alternative embodiment in which each cell of the intermediate screen has on its outer face four facets, namely two central facets 32a, 32a 'slightly inclined relative to the plane of the screen, and two external facets respectively upper and lower 32b, 32c having a more pronounced inclination.
  • This variant is adapted in particular to the regulatory photometry of reversing lights.
  • the facets are preferably connected to one another with first-order continuity, that is to say that there is no recess or step between them.
  • FIG 7 there is shown another alternative embodiment in which the facets provided on the outer side of the screen 30 are no longer hollow but projecting.
  • This variant applies in particular when it is desired, with the aid of said facets, to reinforce the spread provided initially by the associated spherical surfaces 31.
  • an elementary spherical surface 31 can be designed so that it provides a spread of ⁇ 10 ° both in the horizontal direction and in the vertical direction.
  • the facets are used to increase the horizontal spread in this case, for example so that it reaches ⁇ 20 °. This is why, in this hypothesis, the representation of FIG. 7 is a horizontal section.
  • the associated external facets however retain the same role, namely to correct the spreading towards vertical or preferably horizontal given by the associated spherical surface.
  • FIG. 9 another variant of the intermediate screen has been illustrated, in which the spherical surfaces are concave (reference 33) and the inclined facets, similar in their distribution to those of FIG. 2, are protruding .
  • the effect obtained is the same, namely that the spherical surfaces provide a suitable spread in one of the directions, while the combination of the spherical surfaces and the facets ensures a suitable spread in the other direction.
  • FIG. 10 illustrates yet another embodiment of the intermediate screen of the invention, intended to take into account the direct light emitted by the lamp 10 towards the intermediate screen.
  • the intermediate screen in this case comprises on its internal face a Fresnel lens F, while the sets of facets are preserved on the external face as in the case of cells C (x, y) constituted by a spherical surface 31 and an associated set of facets as described above.
  • spheres similar to spheres 31 can be used where appropriate, but the surfaces of which are corrected to take account on the one hand of the divergence proper to direct radiation and of its obliquity, which varies d from cell to cell.
  • a ridged mirror known per se and capable of behaving in a manner analogous to a paraboloid while having a reduced depth.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP97400031A 1996-01-10 1997-01-08 Signalleuchte mit einer Zwischenscheibe zur optischen Behandlung des Lichstrahles und für stilistische Gründe sowie Herstellungsverfahren derselben Ceased EP0784185A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9600196A FR2743405B1 (fr) 1996-01-10 1996-01-10 Feu de signalisation a ecran intermediaire de traitement optique et de style, et procede de fabrication de l'ecran intermediaire
FR9600196 1996-01-10

Publications (1)

Publication Number Publication Date
EP0784185A1 true EP0784185A1 (de) 1997-07-16

Family

ID=9487997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400031A Ceased EP0784185A1 (de) 1996-01-10 1997-01-08 Signalleuchte mit einer Zwischenscheibe zur optischen Behandlung des Lichstrahles und für stilistische Gründe sowie Herstellungsverfahren derselben

Country Status (4)

Country Link
US (1) US5964525A (de)
EP (1) EP0784185A1 (de)
JP (1) JPH09193709A (de)
FR (1) FR2743405B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2765312A1 (fr) * 1997-06-30 1998-12-31 Valeo Vision Feu de signalisation a ecran intermediaire de traitement optique et de style
DE19951407A1 (de) * 1999-10-26 2001-05-03 Hella Kg Hueck & Co Kraftfahrzeugleuchte
DE10032887A1 (de) * 2000-07-06 2002-01-17 Valeo Beleuchtung Deutschland Linse für eine Leuchte und mit solchen Linsen versehene Leuchtenbauteile
EP1496304A1 (de) * 2003-07-11 2005-01-12 Valeo Vision Signalleuchte für Fahrzeuge
FR3019116A1 (fr) * 2014-04-01 2015-10-02 Valeo Vision Dispositif lumineux avec ecran de deviation

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002251904A (ja) * 2001-02-23 2002-09-06 Ichikoh Ind Ltd 車両用灯具
US6945680B2 (en) * 2002-06-28 2005-09-20 Bayerische Motoren Werke Aktiengesellschaft Light assembly
US7484871B2 (en) * 2003-07-29 2009-02-03 Valeo Sylvania Llc Single lens for LED signal light
CN101424752A (zh) * 2007-10-31 2009-05-06 富士迈半导体精密工业（上海）有限公司 光学透镜及光源模组
DE102010014099A1 (de) * 2010-04-07 2011-10-13 Siteco Beleuchtungstechnik Gmbh Leuchte mit Abdeckscheibe
JP5731932B2 (ja) * 2011-08-25 2015-06-10 株式会社小糸製作所 車両用照明灯具
CN104748064B (zh) * 2015-03-21 2017-05-03 马千里 太阳光灯泡
DE102017103320A1 (de) * 2017-02-17 2018-08-23 Osram Gmbh Fahrzeugscheinwerfer
DE102018115229A1 (de) * 2018-03-29 2019-10-02 Automotive Lighting Reutlingen Gmbh Licht-Zwischenscheibe für eine Kraftfahrzeugleuchte

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE8533666U1 (de) * 1985-01-28 1986-01-16 Comind S.p.A., Venaria, Turin/Torino Farbige Signalleuchte für Kraftfahrzeuge
EP0678702A1 (de) * 1994-03-21 1995-10-25 Automotive Lighting Rear Lamps Italia S.p.A. KFZ-Signalleuchte

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US3764800A (en) * 1972-10-17 1973-10-09 Trilux Lenze Gmbh & Co Kg Cover plate for a lamp
FR2329427A1 (fr) * 1975-10-30 1977-05-27 Essilor Int Procede pour la realisation d'une lentille ophtalmique a puissance focale progressivement variable, et palet semi-fini formant un produit intermediaire dans ce procede
JPS5819804A (ja) * 1981-07-28 1983-02-05 株式会社東芝 照明装置
JPS59138050A (ja) * 1983-01-27 1984-08-08 トヨタ自動車株式会社 ランプ構造
GB8327529D0 (en) * 1983-10-14 1983-11-16 Lucas Ind Plc Indiscernible lamp
GB8333924D0 (en) * 1983-12-20 1984-02-01 Britax Vega Ltd Vehicle lamp assembly
US4670823A (en) * 1984-12-31 1987-06-02 Stanley Electric Co., Ltd. Vehicle lamp having inner lens
DE3636383A1 (de) * 1986-10-25 1988-04-28 Swf Auto Electric Gmbh Signalleuchte, insbesondere fuer kraftfahrzeuge
US4868725A (en) * 1988-10-31 1989-09-19 Koito Manufacturing Co., Ltd. Motor vehicle combination lamp
FR2660411B1 (fr) * 1990-03-30 1994-09-02 Valfo Vision Ecran intermediaire pour un feu de signalisation et procedes de fabrication de moules pour realiser ledit ecran.
FR2685440B1 (fr) * 1991-12-20 1998-03-13 Valeo Vision Glace pour dispositif optique de signalisation equipee d'elements pseudo-catadioptriques.
DE4230963A1 (de) * 1992-09-16 1994-03-17 Teves Gmbh Alfred Signalleuchte
JP2581778Y2 (ja) * 1993-12-21 1998-09-24 株式会社小糸製作所 車輌用標識灯
JP2808250B2 (ja) * 1993-12-22 1998-10-08 株式会社小糸製作所 車輌用標識灯
US5515253A (en) * 1995-05-30 1996-05-07 Sjobom; Fritz C. L.E.D. light assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8533666U1 (de) * 1985-01-28 1986-01-16 Comind S.p.A., Venaria, Turin/Torino Farbige Signalleuchte für Kraftfahrzeuge
EP0678702A1 (de) * 1994-03-21 1995-10-25 Automotive Lighting Rear Lamps Italia S.p.A. KFZ-Signalleuchte

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2765312A1 (fr) * 1997-06-30 1998-12-31 Valeo Vision Feu de signalisation a ecran intermediaire de traitement optique et de style
DE19826905A1 (de) * 1997-06-30 1999-01-07 Valeo Vision Signalleuchte mit Zwischenscheibe zur optischen Behandlung und mit Designfunktion
US6273591B1 (en) 1997-06-30 2001-08-14 Valeo Vision Indicator lights for motor vehicles
DE19951407A1 (de) * 1999-10-26 2001-05-03 Hella Kg Hueck & Co Kraftfahrzeugleuchte
DE10032887A1 (de) * 2000-07-06 2002-01-17 Valeo Beleuchtung Deutschland Linse für eine Leuchte und mit solchen Linsen versehene Leuchtenbauteile
EP1496304A1 (de) * 2003-07-11 2005-01-12 Valeo Vision Signalleuchte für Fahrzeuge
FR2857434A1 (fr) * 2003-07-11 2005-01-14 Valeo Vision Feu de signalisation pour vehicule
FR3019116A1 (fr) * 2014-04-01 2015-10-02 Valeo Vision Dispositif lumineux avec ecran de deviation
EP2927050A1 (de) * 2014-04-01 2015-10-07 Valeo Vision Leuchtvorrichtung mit ablenkbildschirm

Also Published As

Publication number Publication date
US5964525A (en) 1999-10-12
FR2743405A1 (fr) 1997-07-11
FR2743405B1 (fr) 1998-04-03
JPH09193709A (ja) 1997-07-29

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