EP2747060A1 - Éclairage de signalisation - Google Patents

Éclairage de signalisation Download PDF

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Publication number
EP2747060A1
EP2747060A1 EP13198090.6A EP13198090A EP2747060A1 EP 2747060 A1 EP2747060 A1 EP 2747060A1 EP 13198090 A EP13198090 A EP 13198090A EP 2747060 A1 EP2747060 A1 EP 2747060A1
Authority
EP
European Patent Office
Prior art keywords
light
sealing element
guide plate
leds
level
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
EP13198090.6A
Other languages
German (de)
English (en)
Other versions
EP2747060B1 (fr
Inventor
Tanja ILIC
Marcel 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 EP2747060A1 publication Critical patent/EP2747060A1/fr
Application granted granted Critical
Publication of EP2747060B1 publication Critical patent/EP2747060B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to an indicator lamp with LEDs (LED: light emitting diode), a light guide plate, a frame member and two light exit discs.
  • LED light emitting diode
  • Such a sign lamp in the form of a escape sign light is from the Scriptures DE 20 2006 014 352 U1 known.
  • This known indicator light is characterized by a particularly good accessibility to the interior. However, the resistance of the indicator light is limited.
  • the invention has for its object to provide a corresponding improved indicator light.
  • the light should have a better resistance to environmental influences with particularly good light output properties.
  • an indicator lamp which has LEDs for generating a light, and a light guide plate having a first plan front surface, a rear surface and a, the front surface with the rear surface connecting edge side surface, the LEDs along the side surface are arranged so that the light is coupled into the light guide plate.
  • the direction indicator lamp has a frame element which is arranged around the light guide plate and around the LEDs, and a first light exit disc, which is arranged on a first side of the light guide plate and a second light exit disc, which is arranged on a second side of the light guide plate.
  • the indicator lamp has a sealing element, which is arranged both sealingly between the frame member and the first light exit plate, as well as sealing between the frame member and the second light exit plate.
  • the sealing element On the one hand, a particularly good sealing of the indicator light can be achieved by the sealing element; on the other hand, the light output of the indicator light can be advantageously influenced by the sealing element.
  • the sealing element is configured annularly closed. This makes it possible to achieve a particularly good seal on all sides.
  • the sealing element consists of a rubber material, for example of a thermoplastic elastomer. Further preferably, it is produced in an injection molding process. Further preferably, the sealing element is designed like a profile. In this way, particularly suitable properties of the sealing element can be achieved with simple production.
  • the sealing element has a groove, which is U-shaped in a cross-section, wherein the light guide plate is arranged with its side surface engaging in this groove. This makes it possible to achieve that the light generated by the LEDs leaves the light guide plate particularly uniformly and subsequently reaches the first or second light exit window.
  • the groove on the first side is preferably delimited by a first, upwardly projecting, free U-limb and in this case the design such that the first light-exit disc extends below a first level which passes through the upper boundary of the first free U -Chelfels is fixed. In this way, the frame element can be made particularly narrow.
  • the LEDs are located completely below the first level, it can be achieved that the LEDs are covered by the sealing element during normal viewing of the indicator light and therefore no corresponding points of light can be seen.
  • the first U-leg is shaped such that it has an obliquely falling edge on the first side. This makes it possible to achieve that light can pass from the light guide plate into a lower edge region of the first light exit disk, so that a particularly good edge-side Illumination of the first light exit plate is possible.
  • This peripheral illumination is further supported if the flank has a white and / or a reflective surface.
  • the entire sealing element has a white and / or a reflective surface.
  • the frame member has on the first side a first, upstanding, free support leg disposed on the first side from a lower end portion of the first light exit plate and extending upwardly to a second level extending below the first Levels is located.
  • the frame element can be made particularly narrow or with a particularly small vertical extent.
  • the edge illumination is particularly supported when the flank extends down to the second level or below the second level.
  • the LEDs are preferably arranged above the second level.
  • the sealing element is symmetrically shaped with respect to a plane of symmetry passing through the lightguide plate.
  • the corresponding advantages can also be achieved in an analogous manner on the side of the second light-emitting disk.
  • Fig. 1 shows a sketch of a frontal view of an indicator lamp according to the invention, hereinafter also referred to briefly as a lamp.
  • the directional lamp has a rectangular shape, which is defined by a frame member 7 of the lamp.
  • the frame element 7 is arranged in a vertical plane which, as in FIG Fig. 1 indicated by a coordinate system x, y, z - defined by an xy plane.
  • the indicator light is also suitable for another orientation with respect to the vertical. In such a case, the corresponding directions etc. are to be interpreted accordingly in the present description.
  • the frame member 7 has a lower frame leg 76, an upper frame leg 77, a first frame side leg 78 and a second frame side leg 79, wherein the frame side legs 78, 79 respectively connect the upper frame leg 77 with the lower frame leg 77.
  • the frame element 7 may have, for example, engagement elements 75 for a suspension element, for example a pendulum rod or a chain or the like, on its upper frame limb 77.
  • Fig. 2 shows a perspective sectional view of a lower portion of the sign lamp, wherein the section is placed in an xz plane in a central region of the sign lamp
  • Fig. 3 shows a corresponding sketch of an upper area.
  • the lamp has LEDs 2 for generating a light.
  • the LEDs 2 form the only light source of the lamp.
  • the LEDs 2 can be arranged on a particularly elongated circuit board 21.
  • the luminaire has a light guide plate 3 with a front surface 4 which is planed in the first approximation, a rear surface 5 and a peripheral side surface 6 connecting the front surface 4 with the rear surface 5.
  • the LEDs 2 are arranged along the side surface 6 such that the light generated by the LEDs 2 is coupled into the light guide plate 3.
  • the LEDs 2 extend along the lower frame leg 76th
  • the frame member 7 is arranged around the light guide plate 3 and around the LEDs 2 around.
  • the lamp has a first light exit plate 8, which is arranged on a first side re the light guide plate 3.
  • the first light exit plate 8 is arranged oriented parallel to the light guide plate 3.
  • the lamp has a second light exit plate 9, which is arranged on a second side li of the light guide plate 3.
  • the second side li is directed with respect to the light guide plate 3 of the first side re opposite, thus has in the z-direction and is hereinafter also referred to as "left".
  • the second light exit disk 9 is arranged oriented parallel to the light guide plate 3.
  • the luminaire is configured in such a way that the light generated by the LEDs 2 enters the light guide plate 3 and subsequently leaves the light guide plate 3 at least partially via the front surface 4 and / or the rear surface 5 and furthermore the first light exit disc 8 and the second light exit disc 9 interspersed and finally leaves the light.
  • the first light exit plate 8 and the second light exit plate 9 may be provided with a pictogram, for example, to display an escape route.
  • the lamp has a sealing element 10, which is arranged both sealing between the frame member 7 and the first light exit plate 8, as well as sealing between the frame member 7 and the second light exit plate 9.
  • the sealing member 10 can be achieved that the LEDs 2 in a sealed interior of the lamp are arranged, which can be sealed in particular splash-proof.
  • the protection class IP 42 can be provided for this purpose.
  • the interior can be limited or circumscribed by the sealing element 10, the first light exit disk 8 and the second light exit disk 9.
  • the sealing element 10 is configured annularly closed.
  • it may have four sealing element legs, with a first sealing element leg extending parallel to the lower frame leg 76, a second sealing element leg parallel to the upper frame leg 77, a third sealing element leg parallel to the first frame side leg 78 and a fourth Seal member legs parallel to the second frame side legs 79th
  • the sealing element 10 is made of a rubber material.
  • it may consist of a thermoplastic elastomer.
  • it is produced in an injection molding process.
  • the sealing element 10 is further preferably designed like a profile.
  • Fig. 4 is an enlarged section of Fig. 2 which shows an area around the seal member 10 and the first seal member leg, respectively;
  • Fig. 5 shows a portion of the sealing element 10th
  • the sealing element 10 has a groove 15, which is U-shaped in a cross-section, wherein the light guide plate 3 - as in Fig. 2 shown - is arranged engaging with its side surface 6 in this groove 15. This makes it possible to achieve that the light emitted directly by the LEDs 2, when the luminaire is normally viewed from the outside, of the sealing element 10 is shielded so that around the LEDs 2 around no corresponding points of light can be seen.
  • the board 21 is arranged with the LEDs 2 inserted into the groove 15.
  • the groove 15 on the first side re or limited on the right side by a first, upstanding free U-leg 11.
  • This first U-leg 11 extends upwardly to a first level N1, which is thus defined by an upper boundary of the first U-leg 11.
  • the design is such that the first light exit plate 8 extends below this first level N1 .
  • the frame element 7 or here its lower frame leg 76 can be designed with a particularly small vertical extent or particularly narrow. This is advantageous with respect to the external appearance of the sign lamp.
  • the LEDs 2 are arranged completely below the first level N1 .
  • a corresponding complete shielding of the LEDs 2 by the sealing element 10 can be achieved with normal viewing of the luminaire.
  • the first U-leg 11 of the seal member 10 is formed such that it re on the first side a sloping flank 111 has.
  • the flank 111 encloses an angle ⁇ with a plane defined by the light guide plate 3, which angle is between 10 ° and 85 °, preferably between 20 ° and 70 °.
  • this flank 111 it can be achieved that light which leaves the light guide plate 3 via the front surface 4 can also be incident on the first light exit disc 8 below the first level N1 . In this way, a particularly uniform illumination of the first light exit plate 8 can be effected. Light can thus fall into the lower edge area of the pictogram.
  • This downward edge illumination of the first light exit plate 8 is forced, when the edge 111 is a white and / or a reflective Surface has.
  • the entire sealing element 10 has a white and / or reflective surface.
  • the first U-leg 11 is preferably shaped so that it tapers towards the top. On its second side li , ie toward the board 21, it can have a vertical flank.
  • the frame member 7 and here the lower frame leg 76 preferably on the first side re a first, upstanding, free retaining leg 71 which is disposed on the first side re from a lower end portion of the first light exit plate 8 and after at the top to a second level N2 , which is below the first level N1 .
  • the frame member 7 thus engages with the retaining leg 71, the first light exit plate 8 - with respect to the interior of the lamp - from the outside.
  • the lower frame member 76 can be designed with a particularly small vertical extent; this is advantageous with respect to the external appearance of the luminaire.
  • the sealing element 10 on the first side re next to the edge 111, a further groove 13, in which the first light exit plate 8 is arranged engaging with a lower end portion.
  • the first light exit disc 8 for this purpose has a flange-like projection 81, which engages in the further groove 13.
  • the other groove 13 is on the first side of a re also upwardly extending sealing leg 12 is limited. On the first side of this sealing leg 12 immediately follows the first free retaining leg 71 of the frame member 7 at. As a result, a particularly good sealing of the interior is possible.
  • the luminaire is configured such that the flank 111 extends downwards to the second level N2 or below the second level N2 .
  • the LEDs 2, however, are advantageously arranged above the second level.
  • the lower frame leg 76 preferably extends down to a third level N3 , which is located below the second level N2 .
  • the relationship 1 ⁇ 4 * ( N 2 -N 3) ⁇ (N 1 -N 2) ⁇ (N 2 -N 3) preferably applies here .
  • the sealing element 10 is preferably designed symmetrically with respect to a plane of symmetry M which passes through the light guide plate 3.
  • the luminaire is designed symmetrically with respect to the frame element 7 and the second light exit plate 9.
  • the frame element 7 and the sealing element 10 are furthermore shaped such that the sealing element 10 can be inserted into the frame element 7 in a form-fitting manner.
  • the frame member 7 for this purpose has two projections 73, 74 and the sealing member 10 has a downwardly facing engagement portion 14 which is positively on the first side re and the second side li of the two projections 73, 74 of the frame member 7 is included.
  • the frame member 7 is preferably made of aluminum.
  • Four corresponding leg profile elements can be combined via corner connectors (scraper springs) to the frame element 7. This makes it possible to effect a particularly suitable contact pressure with respect to the sealing element 10.
  • the LEDs 2 extend along the lower frame leg 76. Accordingly, the terms top, bottom, level, etc. are selected. However, the design may also be such that the LEDs additionally or alternatively extend along the upper frame leg 75 and / or the first frame side leg 78 and / or the second frame side leg 79. The design is formed in this case analogous to the above representation, so that the corresponding direction information etc. are to be reinterpreted accordingly.
  • a particularly homogeneous illumination of the first light exit plate 8 and the second light exit plate 9 can be achieved.
  • a particularly good illumination can be achieved in the edge region.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP13198090.6A 2012-12-19 2013-12-18 Éclairage de signalisation Active EP2747060B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012104954.6U DE202012104954U1 (de) 2012-12-19 2012-12-19 Hinweisleuchte

Publications (2)

Publication Number Publication Date
EP2747060A1 true EP2747060A1 (fr) 2014-06-25
EP2747060B1 EP2747060B1 (fr) 2019-07-10

Family

ID=49880440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13198090.6A Active EP2747060B1 (fr) 2012-12-19 2013-12-18 Éclairage de signalisation

Country Status (2)

Country Link
EP (1) EP2747060B1 (fr)
DE (1) DE202012104954U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195787A (zh) * 2016-08-20 2016-12-07 安徽泽润光电有限公司 Led面板灯及其发光组件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014019174A1 (de) * 2014-12-18 2016-06-23 Glacryl Hedel Gmbh Rahmenelement einer Beleuchtungseinrichtung und Beleuchtungseinrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325773A1 (de) * 1983-07-16 1985-01-24 Gebr. Berker GmbH & Co, 5885 Schalksmühle Lichtsignal
DE202006014352U1 (de) 2006-04-13 2007-01-11 Zumtobel Lighting Gmbh Leuchte mit wenigstens einer lichtdurchlässigen Abdeckung
JP2007041622A (ja) * 2006-11-02 2007-02-15 Fujiden Keiso Kk 照明装置
US20120169967A1 (en) * 2011-01-03 2012-07-05 Lg Display Co., Ltd. Two-Way Liquid Crystal Display Device

Family Cites Families (10)

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DE3919925A1 (de) * 1989-06-19 1990-12-20 Inotec Gmbh Ges Fuer Innovativ Beleuchtete, anzeigeeinheit, insbesondere hausnummer, verkehrsschild, werbetraeger
JP2000206911A (ja) * 1999-01-08 2000-07-28 Sekisui Jushi Co Ltd 内照式表示システム
DE102004050650B4 (de) * 2004-10-18 2007-12-20 Informationstechnik Meng Gmbh Plakathaltevorrichtung
DE102005017639B4 (de) * 2005-04-15 2008-03-06 Digitalicht Ag Lichtleiteranordnung sowie Verfahren zur Herstellung einer solchen
DE202005006234U1 (de) * 2005-04-18 2005-08-18 Macht, Hubert Leuchtvorrichtung
US8079743B2 (en) * 2005-06-28 2011-12-20 Lighting Science Group Corporation Display backlight with improved light coupling and mixing
DE102007015747A1 (de) * 2007-03-30 2008-10-02 Erich Utsch Ag Lichtleiteranordnung zur Ausleuchtung eines an einem Kfz befestigten retroreflektierenden Kfz-Kennzeichenschilds, Montagevorrichtung mit einer solchen Lichtleiteranordnung sowie beleuchtete retroreflektierende Kfz-Kennzeichen......
DE102007022294A1 (de) * 2007-05-12 2008-11-13 Höffken, Ingo Sichtschutzzaunanlage mit integrierten Lichtfeldern
DE102007036468A1 (de) * 2007-07-23 2009-01-29 Evonik Röhm Gmbh Heckelement für ein Kraftfahrzeug umfassend eine Beleuchtungseinheit
DE202009003573U1 (de) * 2009-03-16 2009-05-28 Fritz Lange Gmbh Beleuchtetes Schild

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325773A1 (de) * 1983-07-16 1985-01-24 Gebr. Berker GmbH & Co, 5885 Schalksmühle Lichtsignal
DE202006014352U1 (de) 2006-04-13 2007-01-11 Zumtobel Lighting Gmbh Leuchte mit wenigstens einer lichtdurchlässigen Abdeckung
JP2007041622A (ja) * 2006-11-02 2007-02-15 Fujiden Keiso Kk 照明装置
US20120169967A1 (en) * 2011-01-03 2012-07-05 Lg Display Co., Ltd. Two-Way Liquid Crystal Display Device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195787A (zh) * 2016-08-20 2016-12-07 安徽泽润光电有限公司 Led面板灯及其发光组件

Also Published As

Publication number Publication date
EP2747060B1 (fr) 2019-07-10
DE202012104954U1 (de) 2014-03-27

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