EP0040853A1 - Lampe de signalisation - Google Patents

Lampe de signalisation Download PDF

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Publication number
EP0040853A1
EP0040853A1 EP81104038A EP81104038A EP0040853A1 EP 0040853 A1 EP0040853 A1 EP 0040853A1 EP 81104038 A EP81104038 A EP 81104038A EP 81104038 A EP81104038 A EP 81104038A EP 0040853 A1 EP0040853 A1 EP 0040853A1
Authority
EP
European Patent Office
Prior art keywords
light
slats
scattering elements
vertical
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.)
Granted
Application number
EP81104038A
Other languages
German (de)
English (en)
Other versions
EP0040853B1 (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
Auer Lighting GmbH
Original Assignee
AUER-SOG Glaswerke GmbH
Auer Lighting 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, Auer Lighting 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 diffuser having scattering elements for the emerging light and essentially horizontally and at a distance from one another between the light source and the diffuser arranged slats for the absorption of incident external light on the top.
  • Such a signal lamp is already known (DE-OS 26 34 522).
  • This known signal light is provided as a rear light for a motor vehicle.
  • Signal lights in particular also in the form of traffic lights or the like, must provide unmistakable information, in particular also with regard to the color or the operating state, so that it can always be clearly determined whether a color lights up or not.
  • the operating state requires a signal light intensity or luminance, which is downward due to a minimum conspicuity and upwards due to the risk of glare in a dark environment and due to the requirement for low energy consumption in brighter surroundings Environment is limited.
  • signal lights can not be operated with arbitrarily large brightness, and there is therefore the risk that due to external external light, in the case of traffic lights, in particular sunlight, the light illuminates so brightly due to reflections that it can be mistaken for a signal that is not switched on can arise.
  • the sunlight reflected by traffic lights is known as "phantom light”. This can be caused by reflections on the front of the cover lens, on the boundary surfaces of the scattering elements of the lens, on the mirror surface of the reflector and on the lamp bulb.
  • the horizontal slats provided in the known signal light serve to counteract the emergence of phantom light, as is the case with traffic lights, for example, by using a barge which is pulled over the traffic lights in a roof-like manner in order to shield the actual signal light from the impact of sunlight. It can be seen that such a barge can only to a limited extent prevent sunlight from entering the traffic light and leading to phantom light. Even the parallel slats no longer have the desired effect when the sunlight is very flat.
  • the invention has for its object to provide a signal lamp that further reduces the occurrence of phantom light by incident external light, both with regard to the manufacture and operation of the lamp, in particular also with regard to the external light that penetrates from the border area of the interference light room without any significant additional cost which is adjacent to the observer room to be supplied with signal light.
  • the spacing of the lamellae corresponds essentially to the height of the scattering elements, that the lamellae are arranged at the level of the transitions between the scattering elements which are essentially immediately adjacent in the vertical direction and that the scattering elements are designed such that they are inclined to deflect light from above or horizontally downwards more strongly in their upper area than in their lower area.
  • 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.
  • the slats 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 so that they deflect substantially horizontally incident extraneous light rays downward in their upper region 13 more than in their lower region 14. This results in the approximately sawtooth-shaped profile of the scattering elements 12.
  • the formation and arrangement of the scattering elements 12 with respect to the lamellae 8, which are spaced h are arranged to each other, also results from Fig. 2nd
  • the point of incidence of an incident light beam L characterized by the distance b depends on the deflection A. The following applies: so
  • 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 bL 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 leads to the underside of the lamella 10 an increase in lighting efficiency.
  • 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 already reflected by the scattering elements 12 of the scattering disc 5, which has a disruptive effect as a scattering disc phantom.
  • This scattering disc phantom effect is based on the fact that the light beam falling on the scattering disc 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.
  • the increased phantom light suppression due to this lateral deflection of the incoming extraneous light essentially corresponds to the previously described phantom light suppression by vertical deflection of the incoming extraneous light beams. While in the vertical deflection, however, the extraneous light rays are to be deflected onto the upper sides of the slats and thus essentially only downwards, two absorbing slat surfaces are available for each vertical diffusion element 15 between two adjacent vertical slats 11, so that 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 it high ambient light absorption goes to nothing.
  • 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 traffic.
  • the optics can also consist of a lens or a lens system, as is often the case with railway signal lights is. 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)
  • Traffic Control Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Communication System (AREA)
  • Facsimile Scanning Arrangements (AREA)
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
DE3020097A DE3020097C2 (de) 1980-05-27 1980-05-27 Signalleuchte
DE3020097 1980-05-27

Publications (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220290834A1 (en) * 2021-03-10 2022-09-15 Varroc Lighting Systems, s.r.o. Light device of a vehicle to ensure a dark, or colored appearance of at least a part of the light device in the off state

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097449B1 (fr) * 1982-06-19 1986-04-09 Britax Vega Limited Feu pour véhicule
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2743777A1 (de) * 1977-09-29 1979-04-12 Rau Swf Autozubehoer Signalleuchte, insbesondere fuer kraftfahrzeuge

Family Cites Families (6)

* 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
US4152756A (en) * 1977-06-27 1979-05-01 General Signal Corporation Railroad crossing signal lamp
DE2835808A1 (de) * 1978-08-16 1980-02-28 Rau Swf Autozubehoer Signalleuchte, insbesondere fuer kraftfahrzeuge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2743777A1 (de) * 1977-09-29 1979-04-12 Rau Swf Autozubehoer Signalleuchte, insbesondere fuer kraftfahrzeuge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220290834A1 (en) * 2021-03-10 2022-09-15 Varroc Lighting Systems, s.r.o. Light device of a vehicle to ensure a dark, or colored appearance of at least a part of the light device in the off state
US11852313B2 (en) * 2021-03-10 2023-12-26 PO LIGHTING CZECH s.r.o. Light device of a vehicle to ensure a dark, or colored appearance of at least a part of the light device in the off state

Also Published As

Publication number Publication date
DE3020097A1 (de) 1981-12-10
YU129381A (en) 1983-06-30
DK231081A (da) 1981-11-28
DE3160869D1 (en) 1983-10-20
DE3020097C2 (de) 1983-02-10
EP0040853B1 (fr) 1983-09-14
JPS5710182A (en) 1982-01-19
ATE4658T1 (de) 1983-09-15
US4390934A (en) 1983-06-28

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