EP2650865A2 - Ensemble dýémission de lumière avec élément dýéclairage plat - Google Patents

Ensemble dýémission de lumière avec élément dýéclairage plat Download PDF

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Publication number
EP2650865A2
EP2650865A2 EP13163126.9A EP13163126A EP2650865A2 EP 2650865 A2 EP2650865 A2 EP 2650865A2 EP 13163126 A EP13163126 A EP 13163126A EP 2650865 A2 EP2650865 A2 EP 2650865A2
Authority
EP
European Patent Office
Prior art keywords
light
arrangement
elements
guiding element
light guide
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
EP13163126.9A
Other languages
German (de)
English (en)
Other versions
EP2650865A3 (fr
EP2650865B1 (fr
Inventor
Patrick Kilga
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2650865A2 publication Critical patent/EP2650865A2/fr
Publication of EP2650865A3 publication Critical patent/EP2650865A3/fr
Application granted granted Critical
Publication of EP2650865B1 publication Critical patent/EP2650865B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • G08B7/062—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources indicating emergency exits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/049—Edge illuminated signs, boards or panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F2013/05—Constructional details indicating exit way or orientation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

Definitions

  • the present invention relates to an arrangement for emitting light according to the preamble of claim 1, which has a planar light-guiding element, in which light is coupled in at the front side and emitted via a flat side separated from the front side.
  • the present invention relates to a escape sign light for indicating escape routes or the like.
  • light-guiding elements for surface light emission has long been known in lighting technology.
  • the basic principle of such elements is based on the fact that light from one or more light sources is irradiated via a narrow side into the element consisting of a transparent material. Reflections propagate the light within the light guide element and distribute it essentially over the entire element. By means of special so-called light extraction structures, a portion of the light is then emitted in each case via a flat side oriented essentially perpendicular to the light coupling surface.
  • the advantage of using such light-guiding elements is that the light provided by the light sources can be emitted uniformly over a relatively large area, and nevertheless a compact arrangement is achieved. In contrast, lighting arrangements in which a surface light output is to be achieved by means of reflectors or the like, a significantly higher design.
  • escape route luminaires are lights that serve to make a pictogram or the like appear bright to indicate to people within a building an escape route that allows easy and quick exit from the building.
  • the pictograms had to be backlit by a flat arrangement of light sources, a much more compact arrangement can now be achieved when using the above-described light control technique, since the light source or light sources need only be located on a specific side of the luminaire.
  • the light element ensures that the pictogram over its entire surface is uniformly backlit across and accordingly clearly visible.
  • the pictogram can already be applied directly to the flat side of the light-guiding element used as the light-emitting surface, for example printed, so that a luminaire consisting of very few elements can be realized.
  • LEDs have the advantage that they work more energy efficient compared to conventional light sources and generally also have a higher reliability.
  • LEDs must also be more elaborately protected against external influences and care must be taken in particular that the LEDs or the circuit board, which serves as a carrier for the LEDs, is not inadvertently touched by a consumer or user This may lead to so-called ESD damage due to possible electrostatic discharges. Also, the penetration of moisture or dust in this case has a very problematic.
  • the LEDs or the LED board from the outside Ensures influences and it must be taken extra costly measures to ensure the necessary protection. This is especially the case when an application of the lighting arrangement is planned in areas in which a higher humidity is present.
  • the present invention is therefore based on the object to provide a prerequisite that when using a planar light-guiding element in a simple manner, a reliable protection of the light sources from external influences can be achieved.
  • the arrangement should be suitable in areas be used with higher humidity, in spite of all no damage to the components of the lighting arrangement is to be feared.
  • the carrier element for the light sources that is to say preferably the LED board
  • the carrier element for the light sources is fixed to the light-guiding element.
  • clamping elements which are C-shaped according to a preferred embodiment of the present invention and each having two side arms for clamping with the light guide.
  • the clamping element has a carrier element cross-center leg, which preferably has a directed to the LED board projection or nubs.
  • the LED board is then fixed to the light guide, so that on the one hand achieved a secure support and on the other hand, an efficient coupling of the light is made possible.
  • the light guide can be easily protected by additional measures from external influences, on the one hand to prevent accidental contact with the LEDs and on the other hand to avoid the ingress of dust and / or moisture.
  • the invention therefore proposes an arrangement for emitting light with a planar light-guiding element and a plurality of substantially punctiform light sources, the light sources being arranged on a carrier element on at least one narrow side forming a light-coupling region of the light-guiding element and the light-guiding element being designed to transmit the light emitted by the light sources to emit the light irradiated with the light coupling region via a flat side arranged substantially perpendicular to the narrow side.
  • the carrier element is fixed to the light-guiding element with the aid of clamping elements.
  • a light-guiding element for use in an arrangement for emitting light with a plurality of substantially punctiform
  • Light sources proposed wherein the light sources are arranged on a carrier element on at least one Lichteinkoppel Scheme of the light guide forming narrow side and wherein the light guide is adapted to emit the light emitted from the light sources and irradiated via the Lichteinkoppel Scheme light over a substantially perpendicular to the narrow side arranged flat side ,
  • the light-guiding element is profiled on the narrow side forming the light-coupling region in order to enable the attachment of clamping elements for holding the carrier element.
  • the light-guiding element is particularly preferably profiled in a T-shaped manner in the light-coupling region, in which case the side arms of the clamping elements each have projections at their end regions, which engage in corresponding recesses of the profiled region.
  • the light-guiding element furthermore preferably has bearing elements, in particular protrusions, ribs or the like, on its light-coupling surface, which is formed by the upper side of the profiled area, on which the carrier element, that is to say the LED board, rests in a defined manner.
  • the LED board thus does not lie with the LEDs directly on the light entry surface of the light guide element but is preferably arranged such that the LEDs have a small distance from the light entry face.
  • This "floating" storage leads on the one hand to a better light coupling, on the other hand, this reduces the loads acting on the board.
  • the LED board twisted or tilted, which would significantly affect the efficiency of the light coupling.
  • an additional support or fixation of the LED board to the light guide can be further achieved by the fact that additional retaining elements are pushed onto the two end portions of the profiled area.
  • the holding elements have corresponding means, for example, a screw with a Carrier element, for example, a housing, which includes an operating device for powering the LEDs allow.
  • the arrangement according to the invention could also be provided for the suspended arrangement, in which case the holding elements then have means for fastening a cable-like suspension element and in particular are also designed to ensure a strain relief. In this case, then the rope-like suspension elements can be used simultaneously as power supply lines for the LEDs.
  • the light-guiding element has a planar design, although this is not only to be understood as meaning that it has two flat sides aligned parallel to one another.
  • the intended for the light output flat sides could for example also be inclined to each other or the like, which would then result in a wedge-like cross-sectional shape. Even a slightly curved or curved surface would be conceivable.
  • the arrangement according to the invention is part of a escape sign luminaire, wherein in particular the light-guiding element simultaneously serves as a support for a pictogram to be illuminated.
  • a escape sign is described below.
  • the inventive concept is by no means limited to such types of luminaires but can basically be used when a light output is to take place with the aid of light-guiding elements.
  • the light sources can also on several narrow sides of the light guide according to the invention Solution can be arranged and a light output can be done via one or both flat sides of the light guide.
  • escape sign light is provided for wire suspension and is attached via two wires 50 suspended from a support element.
  • a support element serves as a support element, an elongated housing 200, which includes an operating device for powering the light sources of the escape sign 1.
  • This housing 200 is fixed to the ceiling of a room or the like.
  • a plurality of light sources in the form of LEDs are arranged, which are arranged side by side on an elongated board.
  • the light from the LEDs is coupled or radiated from the upper side into a waveguide element 10 of wedge-like design.
  • the light is then forwarded within the light guide 10, wherein the two flat sides 11 and 12 are provided with structures over which incident light beams are deflected such that they the light guide 10 via one of these two sides 11th , 12 leave.
  • the surface of the light-guiding element 10 is additionally printed with a pictogram 2, via which the direction of an escape route is indicated.
  • the solution according to the invention is concerned in particular with the manner of arrangement of the light sources in the region of the light coupling of the light-conducting element 10, on the one hand achieving reliable support of the light sources and, on the other hand, providing efficient protection against external influences. For example, accidentally touching the LEDs or the LED board should be avoided to prevent damage due to electrostatic discharge. Furthermore, this area should also be protected from other external influences, in particular from the penetration of dust and / or moisture. In the luminaire 1 according to the invention special measures are provided for this, which will be described in more detail below.
  • the solution according to the invention is based in particular on a special embodiment of the light-guiding element 10 in the region of the light coupling. These measures are intended in particular below based on the FIGS. 2 to 5 , which show different views of the light guide 10, will be explained.
  • the Lichteinkoppel Society 13 of the light guide is formed profiled in a special way.
  • a T-shaped profiling 15 is preferably provided, ie, the light-guiding element 10 has in its upper end region on an approximately T-shaped cross-section extension or projection. This is integrally connected to the remaining light-guiding element 10 in order to allow the most efficient possible forwarding of the light in the region of the icon 2.
  • the T-shaped configuration of the profiled end portion 15 is achieved primarily by two extending to the two longitudinal sides of grooves 16 which at four points (see FIG. 2 ) are interrupted. By these interruptions two bearings 17 are defined for later securing a clamping member, which serves to hold the LED board to the light guide 10.
  • the upper side 18, in turn, of the profile region 15, which forms the actual light irradiation surface of the light-guiding element 10, is likewise interrupted at some positions by webs 18 or projections extending transversely to the longitudinal direction. These projections, which in particular also the view of FIG. 5 can be removed, serve as spacers and bearing surfaces for the LED board.
  • the board with the LEDs is therefore not directly on the light entry surface 18, but instead on the projections 19, which has the consequence that the LEDs are arranged even at a slight distance so to speak, suspended above the Lichteinstrahl requirements 18.
  • a defined support for the LED board is created, by which not only the light coupling is optimized but also prevents the board is tilted or rotated.
  • a secure and optimized mounting of the LED board to the light guide 10 is achieved by the interaction with the clamping elements described below.
  • clamping elements 20 are individually in the FIGS. 6 and 7 shown. They are approximately C-shaped in cross-section and have two side arms 21, which each have an inwardly projecting projection 22 at their lower ends.
  • the middle leg 23 is slightly curved inwardly and provided on its underside with a downwardly directed projection 24 and a knob (see FIG. 7 ).
  • the two clamping elements 20 are attached to the two bearings 17.
  • the clamping elements 20 are placed from the top and pressed down so that the projections 22 snap into the grooves 16 and snap.
  • the clamping elements 20 are fixed in these longitudinal positions due to the interruptions in the longitudinal grooves 16 and can not slip. At the same time they press with the projections 24 against the top of the LED board 5 and fix them in the in FIG. 8 position shown.
  • FIG. 10 Shown here are in particular two additional holding elements 25, which - as well as the clamping elements 20 - are formed in cross-section C-shaped.
  • These holding elements 25 additionally serve for fixing the LED board 5 to the light-guiding element 10 and are pushed onto the T-section 15 from the two end areas.
  • These strain relief elements have a plate-shaped base region 31, from which a hollow cylinder 32 extends to the upper side. The through hole of the hollow cylinder 32 is connected to a transverse bore 33 through which the wire rope 50 used for the suspension of the lamp 1 is guided.
  • the cable 50 which is soldered at its end to the circuit board 5, relieved of strain. This opens up the possibility that the wire ropes 50 both for Suspension of the lamp 1 and the power supply of the LEDs can be used.
  • an elongated laminating hood 35 is placed from the top.
  • This laminating hood 35 is dimensioned such that it continues the wedge shape of the light-guiding element 10 continuously. This is also made possible by the fact that - as in particular FIG. 3 can be removed - the profiled region 15 is formed narrower than the adjacent thereto the remaining region of the light guide 10th
  • the cylinder-like region 32 of the strain relief elements 30 respectively engages through an opening 26 or 36 in the holding element 25 and the laminating cap 35.
  • a laminating sleeve 40 which is likewise threaded onto the wire ropes 50 and has an internal thread via which appropriate attachment to the strain relief 30 is achieved.
  • the laminating sleeve 40 thus fixes on the one hand the laminating hood 35, on the other hand it provides in this area the implementation of the wire ropes 50 for a corresponding seal. Water draining from the top is discharged laterally and can not penetrate the area of the board 5 with the LEDs 6.
  • FIG. 14 A second variant of a escape sign luminaire 101 according to the invention is shown in FIG FIG. 14 shown.
  • the main difference to the light in the FIGS. 1 to 13 is shown here is that in this second variant no suspension is provided via wire ropes, but instead the light guide 10 directly to a housing 200, which - as already mentioned - the recording of an operating device for powering the LEDs used, is attached.
  • the luminaire 101 is initially designed in the same way with regard to the question of the coupling of light and the attachment of the LED board to the light-guiding element 10. That is, even in this case, the light guide is as in the FIGS. 2 to 5 illustrated formed and the board 5 is using the two clamping elements 20, as shown in the FIGS. 6 and 7 are shown fixed to the profiled area 15.
  • the first result is the arrangement as shown in FIG. 8 is shown.
  • holding elements 45 are provided, which are pushed from the two front ends on the T-profile 5 of the light-guiding element 10 in order to additionally secure the board 5 in these end regions.
  • These holding elements serve the attachment to the housing 200, but not an additional backup or strain relief of suspension cables. Accordingly, it is not provided in this area the implementation of any leads for powering the LEDs.
  • FIG. 16 The sectional view of a holding element in FIG. 16 shows here that this again C-shaped holding member has centrally on its upper side a threaded sleeve or a pin 46 which is provided with an external thread. On both sides of the pin conical projections 47 are further formed on the upper side, which serve an additional security on the housing.
  • a laminating cap or casing 50 is then placed from the upper side. This serves primarily as protection against contact. It is also C-shaped in cross-section, however, at its end faces in comparison to the laminating hood 35 open.
  • the pins 46 of the holding elements 45 and the projections 47 pass through In each case corresponding openings 51 and 52 in the laminating hood 50.
  • a central passage opening 53 is provided, which serves to carry out the feeds for the power supply of the LED board.
  • the arrangement consisting of light-guiding element 10 with LED board 5 fixed thereto, retaining elements 45 and protective cover 50 is then attached from the underside to the operating device housing 200, wherein in turn the protruding projections or pins 46 and the projections 47 in corresponding recesses of the openings engage the housing bottom 201.
  • the assembly is then fixed to the housing 200.
  • a rotation is provided.
  • the light-guiding element 10 is then firmly fixed to the housing 200 in this position.
  • FIGS. 18 and 19 can be removed, engages in this case the upper end portion of the light-guiding element 10 in a corresponding recess or recess of the housing 200 a.
  • the housing 200 surrounds the upper end portion of the light guide 10.
  • the invention is not necessarily limited to escape sign luminaires, even if the reliable fixing of the board to the light-guiding element as well as the possibility of sheathing brings with it particular advantages.
  • the concept can also be used in other luminaires in which light-guiding elements are used for emitting light.
  • the light-guiding element can also be designed otherwise with regard to the alignment and configuration of the surfaces for emitting light.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP13163126.9A 2012-04-12 2013-04-10 Ensemble d'émission de lumière avec élément d'éclairage plat Active EP2650865B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012101316U DE202012101316U1 (de) 2012-04-12 2012-04-12 Anordnung zur Lichtabgabe mit flächigem Lichtleitelement

Publications (3)

Publication Number Publication Date
EP2650865A2 true EP2650865A2 (fr) 2013-10-16
EP2650865A3 EP2650865A3 (fr) 2014-05-14
EP2650865B1 EP2650865B1 (fr) 2018-08-08

Family

ID=48092748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13163126.9A Active EP2650865B1 (fr) 2012-04-12 2013-04-10 Ensemble d'émission de lumière avec élément d'éclairage plat

Country Status (2)

Country Link
EP (1) EP2650865B1 (fr)
DE (1) DE202012101316U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3020708A1 (fr) * 2014-05-05 2015-11-06 Cooper Technologies Co Dispositif d'affichage d'elements de signalisation
EP3734148A1 (fr) * 2019-05-02 2020-11-04 DIN-Dietmar Nocker Facilitymanagement GmbH Luminaire de sécurité ou de signalisation
AT522491A3 (de) * 2019-05-02 2021-04-15 Din Dietmar Nocker Facilitymanagement Gmbh Sicherheits- oder Rettungszeichenleuchte

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021105588A1 (de) * 2021-03-09 2022-09-15 Zumtobel Lighting Gmbh Sicherheitszeichenleuchte mit lichtleiter
EP4105918A1 (fr) * 2021-06-14 2022-12-21 ABB Schweiz AG Panneau signalétique pour l'affichage d'un pictogramme

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DE10347053A1 (de) * 2003-10-07 2005-05-04 Hella Kgaa Hueck & Co Innenleuchte für Fahrzeuge
DE19830151C1 (de) * 1998-07-06 1999-04-29 Becker & Hach Kg Beleuchteter Bilderhalter
DE19937089A1 (de) * 1999-08-06 2001-02-08 Diemer & Fastenrath Ohg Verfahren und Anordnung zur Beleuchtung, insbesondere zur Innenbeleuchtung von Kraftfahrzeugen
KR200239598Y1 (ko) * 2001-04-30 2001-10-12 (주)삼화 광고판넬과 조명등의 착탈이 용이한 광고장치
DE20114561U1 (de) * 2001-09-04 2003-01-23 Ceag Sicherheitstechnik Gmbh Scheibenleuchte
DE10231502A1 (de) * 2002-07-12 2004-01-22 Thomas Emde Fensterelement
DE202007015389U1 (de) * 2007-11-06 2008-02-21 Zumtobel Lighting Gmbh Piktogramm-Leuchte
DE102008024822A1 (de) * 2008-05-25 2009-12-03 Drainlight Ag Leuchtvorrichtung
DE202008014775U1 (de) * 2008-11-06 2009-01-29 Ceag Notlichtsysteme Gmbh Sicherheits- oder Rettungszeichenleuchte
CN201897935U (zh) * 2010-11-19 2011-07-13 惠阳帝宇工业有限公司 一种应急灯指示牌

Non-Patent Citations (1)

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Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3020708A1 (fr) * 2014-05-05 2015-11-06 Cooper Technologies Co Dispositif d'affichage d'elements de signalisation
EP2942772A1 (fr) * 2014-05-05 2015-11-11 Cooper Technologies Company Dispositif d'affichage d'éléments de signalisation
EP3734148A1 (fr) * 2019-05-02 2020-11-04 DIN-Dietmar Nocker Facilitymanagement GmbH Luminaire de sécurité ou de signalisation
AT522491A3 (de) * 2019-05-02 2021-04-15 Din Dietmar Nocker Facilitymanagement Gmbh Sicherheits- oder Rettungszeichenleuchte

Also Published As

Publication number Publication date
DE202012101316U1 (de) 2013-07-15
EP2650865A3 (fr) 2014-05-14
EP2650865B1 (fr) 2018-08-08

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