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EP0040853B1 - Lampe de signalisation - Google Patents

Lampe de signalisation Download PDF

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Publication number
EP0040853B1
EP0040853B1 EP81104038A EP81104038A EP0040853B1 EP 0040853 B1 EP0040853 B1 EP 0040853B1 EP 81104038 A EP81104038 A EP 81104038A EP 81104038 A EP81104038 A EP 81104038A EP 0040853 B1 EP0040853 B1 EP 0040853B1
Authority
EP
European Patent Office
Prior art keywords
light
signal lamp
dispersion
strips
horizontal
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.)
Expired
Application number
EP81104038A
Other languages
German (de)
English (en)
Other versions
EP0040853A1 (fr
Inventor
Achim Dr.-Ing. Willing
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.)
AUER-SOG Glaswerke GmbH
Original Assignee
AUER-SOG Glaswerke 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 AUER-SOG Glaswerke GmbH filed Critical AUER-SOG Glaswerke GmbH
Priority to AT81104038T priority Critical patent/ATE4658T1/de
Publication of EP0040853A1 publication Critical patent/EP0040853A1/fr
Application granted granted Critical
Publication of EP0040853B1 publication Critical patent/EP0040853B1/fr
Expired 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like

Definitions

  • the invention relates to a signal lamp with a light source, a light bundle optics assigned to the light source, a diffusing screen for the emerging light, which has scattering elements arranged one above the other, the upper halves of which deflect downward from above or horizontally incident external light, and with the level of the transitions between the Adjacent scattering elements between the light source and the diffusing screen arranged horizontal slats with light-absorbing tops.
  • Such a signal lamp is already known (DE-A-28 35 808).
  • This known signal lamp serves as a motor vehicle lamp.
  • the individual scattering elements arranged one above the other are formed by lenses with cylindrical surfaces which are arranged essentially symmetrically in the space between adjacent lamellae.
  • the horizontal slats are intended to counteract the formation of phantom light, which is caused by the fact that incident external light, such as flat incident sunlight, is reflected by the signal lamp.
  • incident external light such as flat incident sunlight
  • non-reflective transverse strips are provided on the outside of the cover plate at the level of the horizontal slats.
  • the proportion of the incident external light striking these cross stripes cannot contribute to the phantom formation.
  • the transverse strips are arranged in those areas through which the signal light emitted during operation of the lamp does not pass due to the effect of the lenticular scattering elements.
  • the phantom light suppression can only be improved to a limited extent.
  • the light-absorbing effect of the top of the slats is not increased.
  • the upper halves of the cylindrical lenses or scattering elements are inclined from above to horizontally incident extraneous light stepping downwards onto the slats, but the lower halves of the cylindrical lenses or scattering elements conversely convert incidently incident external light upwards into a more horizontal one Redirected direction and prevented from hitting the slats. This negates a positive effect of the upper lens halves.
  • transverse stripes have to be attached to the outside of the cover plate, with precise coordination and alignment having to be carried out on the lens and the slats in order to avoid adverse effects.
  • a traffic light (traffic light)
  • the phantom light problem is particularly serious.
  • a traffic light must provide unmistakable information so that it can always be clearly ascertained whether a certain color is lighting up or not.
  • the operating state requires a signal light intensity or luminance which is limited at the bottom by a minimum level of conspicuity and at the top by the risk of glare in a dark environment and by the requirement for low energy consumption in a bright environment. Accordingly, traffic lights can not be operated with any brightness to avoid confusion with a comparatively weak phantom light, which is caused by reflections, in particular from flatly incident sunlight on the front of the cover plate, on the interfaces of the scattering elements of the lens, on the mirror surface of the reflector and on the lamp bulb is created.
  • a special feature of a traffic light is the arrangement and function of an upper half-light space and a lower half-space for the observer, which do not overlap, or at least only slightly. These special conditions allow the arrangement of a barge, which is pulled like a roof over the traffic lights in order to shield the traffic light from incident sunlight. However, such a barge does not help against very flat and possibly also laterally incident sunlight.
  • the invention has for its object to design the signal light of the type mentioned so that the emergence of phantom light is prevented in a simple manner without a corresponding weakening of the signal light has to be accepted, so that the light emits an ideal traffic light.
  • the scattering elements are designed such that both their lower halves and their upper halves are inclined to deflect incident light from above or horizontally downwards, whereby the distraction is stronger in the upper halves than in the lower halves.
  • the diffuser according to the invention can be produced with the specially shaped diffuser elements without additional effort.
  • the signal lamp 1 consists of a light source 2, a light beam optics in the form of a reflector 3 with an optical axis 4 and a diffusing screen 5.
  • the optical axis 4 or the horizontal plane passing through it separates the upper half-light space 6 from the lower observer half-space 7.
  • horizontal lamellae 8 are arranged one above the other at regular intervals. These horizontal slats 8 have an absorbent top 9 and a mirrored bottom 10.
  • Vertical lamellae 11 are also arranged between the lens 5 and the light source 2 with uniform intervals. The horizontal slats 8 and the vertical slats 11 are offset from one another or arranged one behind the other in the direction of the optical axis 4, but can expediently be arranged in a common vertical plane with the formation of a grating. Likewise, the lamellae 8 and / or 11 can each be rotated together around the optical axis 4 in order to make a setting depending on the specific application in which the external light or. Phantom light suppression is optimal.
  • the lens 5 has on its inside scattering elements 12 which extend in the horizontal direction, have a height corresponding to the distance between adjacent horizontal slats 8 and are each aligned with the space between two adjacent horizontal slats 8.
  • the scattering elements 12 are designed in such a way that in their upper region 13 they deflect substantially horizontally incident external light rays downward more than in their lower region 14. This results in the approximately sawtooth-shaped profile of the scattering elements 12.
  • the configuration and arrangement of the scattering elements 12 are opposite the slats 8, which are arranged at a distance h from one another, also result from FIG. 2.
  • the depth b L of an ideal lamella 8 is determined by the point of impact which depends on the incidence height t and which strikes the farthest distance from the lens. A smaller value b L means that phantom light occurs.
  • a mirroring of the underside of the slats is desirable if the natural scattering of the emitted signal light or the illuminating optics is so large that many rays strike the underside of the slats 10.
  • the mirroring of the underside of the slats 10 leads to an increase in the efficiency of the lamp.
  • the underside mirroring and possibly also an intended structuring causes an increase in the depth scatter and side scatter even before penetration of the lens 5, so that the prism angles of the scatter elements 12 can be kept correspondingly smaller. This in turn brings about a reduction in the extraneous light which is already reflected by the scattering elements 12 of the scattering disc 5 and which has a disturbing effect as a scattering disc phantom.
  • This diffusing screen phantom effect is based on the fact that the light beam falling on the diffusing screen 5 from the outside is not only refracted but also reflected.
  • each intermediate space between two adjacent vertical lamellae 11 is assigned a scattering element 15 which extends in the vertical direction and which, as shown, is shaped so that it is in its middle Area 16 incident light rays deflected more than in its lateral area 17 to the side on the adjacent flat side of the nearest vertical lamella 11.
  • External light incident through the vertically running and laterally directly adjoining scattering elements 15 is thus directed more intensely onto the vertical lamellae 11 and is thus absorbed and rendered harmless.
  • FIG. 4 has a symmetrical design shows, in which the deflection takes place laterally to the left in the left area and laterally to the right in the right area.
  • the shape of the scattering elements 15 shown results with a vertical incision running essentially in the middle between the adjacent slats 11. Possibly. can, however, also be deviated from the symmetrical design without the advantage of the increased absorption of extraneous light being negated.
  • the vertical slats may also be desirable to provide the vertical slats with a reflective coating on one or both sides and possibly not to align them parallel to the beam path.
  • the vertical lamellae can also be spatially formed and have side surfaces which run at an angle to one another. This is desirable in the case of signals with large side scatter in order to achieve side scatter on the one hand, but also to reduce the phantom light caused by the lens itself due to the large prism angle. It is also conceivable to arrange both vertical mirrored slats and vertical absorbing slats one behind the other.
  • the optimal solution for different directions of incidence must be checked in order to obtain the optimal overall solution.
  • the illuminating optics can consist of a reflector such as reflector 3 in FIG. 1. This is usually the case with signal lights in road traffic.
  • the optics can also consist of a lens or a lens system, as is often the case with railway signal lights. Combinations of reflector and lenses are also possible.
  • the lens 5 can be flat or curved.
  • the horizontal scattering elements 12 and the vertical scattering elements 15 can be repeated periodically over the entire spreading disc 5.
  • the individual scattering elements can also be designed differently, or groups of the same type of scattering elements are formed which cover the scattering disc 5.
  • training is also possible in which groups are repeated in which the individual scattering elements are designed differently in a typical manner.
  • the lamellae are advantageously aligned with the special arrangement of the scattering elements.
  • the described optimization principle can be interrupted in such a way that individual scattering elements or groups of scattering elements remain without associated slats.
  • the horizontal scattering elements 12 and the vertical scattering elements 15 can be provided in mutual superimposition on a single side of the lens 5 or on the one hand on the front and on the other hand on the back of the lens 5, as shown in Fig. 1. Furthermore, it is also possible to work with two scattering disks arranged one behind the other, one of which has the horizontal scattering elements 12 and the other has the vertical scattering elements 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Burglar Alarm Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Traffic Control Systems (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Communication System (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Claims (9)

1. Luminaire de signalisation comportant une source lumineuse, une optique de concentration de lumière adjointe à la source lumineuse, un écran de diffusion de la lumière sortante, qui présente des éléments diffusants superposés dont les moitiés supérieures dévient vers le bas, la lumière parasite arrivant obliquement d'en haut ou horizontalement, et des lamelles horizontales disposées à la hauteur des transitions entre les éléments diffusants voisins, entre la source lumineuse et l'écran de diffusion et dont la face supérieure absorbe la lumière caractérisée en ce que le luminaire de signalisation étant conçu sous forme de feu de circulation comportant un demi-espace supérieur de lumière parasite et un demi-espace inférieur d'observateur, les éléments diffusants sont exécutés de telle sorte que leur moitié inférieure aussi bien que leur moitié supérieure dévient vers le bas une lumière parasite arrivant obliquement d'en haut ou horizontalement, la déviation étant plus forte dans les moitiés supérieures que dans les moitiés inférieures.
2. Luminaire selon la revendication 1, caractérisé en ce que la face inférieure (10) des lamelles horizontales (8) est rendue réfléchissante.
3. Luminaire selon l'une des revendications 1 et 2, caractérisé en ce que l'écran de diffusion (5) est aussi subdivisé, en direction horizontale, en éléments diffusants (15) placés côte à côte, que sur les transitions entre les éléments diffusants (15) adjacents latéralement sont alignées des lamelles verticales (11) et que les éléments diffusants (15) dévient latéralement dans une mesure différente, la lumière arrivant en des points différents dans le sens de la largeur.
4. Luminaire selon la revendication 3, caractérisé en ce que les éléments diffusants (15) dévient latéralement la lumière atteignant leur région centrale (16) plus fortement que dans leurs deux régions latérales (17).
5. Luminaire selon l'une des revendications 3 et 4, caractérisé en ce que les lamelles verticales (11) présentent des surfaces absorbantes.
6. Luminaire selon l'une des revendications 3 et 4, caractérisé en ce que les lamelles verticales (11) présentent des surfaces réfléchissantes d'un côté ou des deux côtés.
7. Luminaire selon l'une quelconque des revendications 3 à 6, caractérisé en ce que les deux surfaces latérales des lamelles verticales (11) font un angle entre elles en coupe horizontale.
8. Luminaire selon l'une quelconque des revendications 3 à 7, caractérisé en ce que les lamelles verticales (11) sont disposées avec espacement axial dans la direction de l'axe (4) de l'optique de concentration de lumière (3) et sont décalées relativement aux lamelles horizontales (8).
9. Luminaire selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les lamelles horizontales (8) et/ou les lamelles verticales (11) peuvent être réglées dans leur ensemble respectif sur une position inclinée, par pivotement autour de l'axe (4) de l'optique de concentration de lumière (3).
EP81104038A 1980-05-27 1981-05-26 Lampe de signalisation Expired EP0040853B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104038T ATE4658T1 (de) 1980-05-27 1981-05-26 Signalleuchte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3020097 1980-05-27
DE3020097A DE3020097C2 (de) 1980-05-27 1980-05-27 Signalleuchte

Publications (2)

Publication Number Publication Date
EP0040853A1 EP0040853A1 (fr) 1981-12-02
EP0040853B1 true EP0040853B1 (fr) 1983-09-14

Family

ID=6103350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104038A Expired EP0040853B1 (fr) 1980-05-27 1981-05-26 Lampe de signalisation

Country Status (7)

Country Link
US (1) US4390934A (fr)
EP (1) EP0040853B1 (fr)
JP (1) JPS5710182A (fr)
AT (1) ATE4658T1 (fr)
DE (2) DE3020097C2 (fr)
DK (1) DK231081A (fr)
YU (1) YU129381A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3362900D1 (en) * 1982-06-19 1986-05-15 Britax Vega Ltd Vehicle lamp assembly
DE3362901D1 (en) * 1982-06-24 1986-05-15 Britax Vega Ltd Vehicle lamp assemblies
DE3922830C2 (de) * 1989-07-08 1993-10-14 Swf Auto Electric Gmbh Lichtabgabeoptik für Kraftfahrzeugleuchten
US5506929A (en) * 1994-10-19 1996-04-09 Clio Technologies, Inc. Light expanding system for producing a linear or planar light beam from a point-like light source
CA2404537C (fr) 2001-09-20 2010-11-30 Genlyte Thomas Group Llc Reflecteur ameliore d'appareil d'eclairage de stade
TWI262277B (en) * 2005-04-15 2006-09-21 Ind Tech Res Inst Integral type lighting device with a thin plate
US7494252B1 (en) 2006-06-29 2009-02-24 Genlyte Thomas Group Llc Compact luminaire enclosure
US7946734B2 (en) * 2007-02-28 2011-05-24 Philips Electronics Ltd Low up-light cutoff acorn style luminaire
CA2623967C (fr) * 2007-03-06 2015-11-24 Canlyte Inc. Luminaire avec reflecteur mixte
US7988327B1 (en) 2009-01-30 2011-08-02 Koninklijke Philips Electronics N.V. LED luminaire
CZ2021112A3 (cs) * 2021-03-10 2022-04-27 Varroc Lighting Systems, s.r.o. Světelné zařízení vozidla k zajištění tmavého, případně barevného vzhledu, alespoň části světelného zařízení ve zhasnutém stavu

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835808A1 (de) * 1978-08-16 1980-02-28 Rau Swf Autozubehoer Signalleuchte, insbesondere fuer kraftfahrzeuge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR610148A (fr) * 1926-08-30
US1806051A (en) * 1927-06-29 1931-05-19 Union Switch & Signal Co Light signal
US2142964A (en) * 1935-11-27 1939-01-03 United Lens Corp Head lamp and lens construction
DE1276517B (de) * 1963-10-18 1968-08-29 Sendlinger Optische Glaswerke Reflektor-Signalscheinwerfer
GB1318669A (en) * 1972-09-25 1973-05-31 Scott J W Motor vehicle headlights
DE2634522A1 (de) * 1976-07-31 1978-02-02 Rau Swf Autozubehoer Signalleuchte fuer kraftfahrzeuge
US4152756A (en) * 1977-06-27 1979-05-01 General Signal Corporation Railroad crossing signal lamp
DE2743777A1 (de) * 1977-09-29 1979-04-12 Rau Swf Autozubehoer Signalleuchte, insbesondere fuer kraftfahrzeuge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835808A1 (de) * 1978-08-16 1980-02-28 Rau Swf Autozubehoer Signalleuchte, insbesondere fuer kraftfahrzeuge

Also Published As

Publication number Publication date
ATE4658T1 (de) 1983-09-15
YU129381A (en) 1983-06-30
DK231081A (da) 1981-11-28
DE3020097C2 (de) 1983-02-10
DE3160869D1 (en) 1983-10-20
DE3020097A1 (de) 1981-12-10
US4390934A (en) 1983-06-28
JPS5710182A (en) 1982-01-19
EP0040853A1 (fr) 1981-12-02

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