EP2561725B1 - Module del avec del passive - Google Patents

Module del avec del passive Download PDF

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Publication number
EP2561725B1
EP2561725B1 EP11715878.2A EP11715878A EP2561725B1 EP 2561725 B1 EP2561725 B1 EP 2561725B1 EP 11715878 A EP11715878 A EP 11715878A EP 2561725 B1 EP2561725 B1 EP 2561725B1
Authority
EP
European Patent Office
Prior art keywords
led
leds
passive
circuit board
light input
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.)
Not-in-force
Application number
EP11715878.2A
Other languages
German (de)
English (en)
Other versions
EP2561725A1 (fr
Inventor
Tobias Roos
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.)
LightDesign Solutions GmbH
Original Assignee
LightDesign Solutions 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 LightDesign Solutions GmbH filed Critical LightDesign Solutions GmbH
Publication of EP2561725A1 publication Critical patent/EP2561725A1/fr
Application granted granted Critical
Publication of EP2561725B1 publication Critical patent/EP2561725B1/fr
Not-in-force 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • 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
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional 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 LED module consisting of a plurality arranged on a printed circuit board LED, each having a so-called embedding with a lens with which the respective LED protrudes from the PCB level, the LED are each coupled to a Lichteinkopplungselement a Lichtleitgropers and through the respectively associated Lichteinkopplungselement the respective luminous flux of the associated LED from the LED is emitted to the outside.
  • LED modules consisting of several arranged on a PCB LED have been known for some time.
  • Such an LED consists of an anode terminal, a cathode terminal, and a "cup" in which an LED crystal is inserted.
  • This LED crystal is connected to the anode connection via a bonding wire.
  • a so-called "embedding" which is usually made of a plastic.
  • this embedding forms a kind of lens so that the light beam emitted by the LED crystal is radiated over as large a surface area as possible in order to minimize the glare effect of the observer.
  • LEDs Since such LEDs have a meantime sufficient for lighting purposes light intensity, it is increasingly passed on to lately, such LED also for lighting a variety of Type in.
  • an LED module which consists of several arranged on a circuit board LED, each having a so-called embedding with a lens with which the respective LED protrudes from the circuit board level.
  • the LEDs are each coupled to a Lichteinkopplungselement a Lichtleitköpers.
  • Lichteinkopplungselement By the respectively associated Lichteinkopplungselement the respective luminous flux of the associated LED is emitted from the LED module to the outside.
  • An overlap of the light cone prevents the direct appearance of a failure of individual LEDs. However, this leads to a greater decrease in the total light output.
  • the invention has for its object to provide an LED module consisting of several arranged on a printed circuit board LED available, in which the failure of individual LED does not appear to the outside in appearance.
  • the object is achieved according to the invention together with the features of the preamble of claim 1, characterized in that on the circuit board to the LED at least one passive LED is provided which can be activated in case of failure of the LED and that emitted by the passive LED luminous flux irradiated in the Lichteinkopplungselement the failed LED and is emitted via the Lichteinkopplungselement to the outside.
  • the "incoupling" of the luminous flux emitted by the passive LED into the light coupling element of the failed LED continues to make it luminous, so that the overall optical impression of the LED module is not disturbed.
  • a plurality of passive LEDs are provided which are assigned to a plurality of LEDs with their light coupling elements and that the respective passive LED can be activated in the event of failure of one of the respective associated LEDs.
  • the respective passive LEDs are preferably arranged between the LED arranged in a matrix, so that the luminous flux of the passive LED can simultaneously reach several Lichteinkopplungs implant the surrounding LED and thus several Lichteinkopplungs comprise are supplied simultaneously by a single passive LED with the required luminous flux can.
  • Fig. 1 shows by way of example a possible embodiment variant of a printed circuit board 75 which is equipped with a plurality of arranged in a matrix LED 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89.
  • Each of these LEDs 76 to 89 are each provided with an outwardly projecting lens 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112 and 113, respectively, which are incorporated in a LED.
  • Module 1 inserted state each protrudes into a Lichteinkopplungselement 30, 31, 32, 33 of a light guide body 2, as for the LED 76, 77, 78 and 79 from Fig. 2 is apparent.
  • a total of three passive LEDs 95, 96 and 97 are provided.
  • the passive LED 95 is assigned to the LEDs 78, 79, 80, 81, 89 in a light-optical manner, so that a luminous flux emitted by the passive LED can reach these adjacent LEDs 78, 79, 80, 81, 89.
  • the passive LED 96 is similarly associated with the LED 76, 77, 83, 87, 88, while the passive LED 97 is associated with the LED 82, 84, 85, 86.
  • the printed circuit board 75 is provided in the region of the LED 76 and 88 with a schematically illustrated electrical connector 115, via which all LED 76 to 89 together or in groups, the required operating energy can be supplied.
  • this passive LED 95, 96 and 97 shows Fig. 2 a simplified sectional view II - II off Fig. 1 a mounted LED module 1. Due to the cut are in Fig. 2 Accordingly, only the arranged on the circuit board 75 LED 76, 77, 78 and 79 with their lenses 100, 101, 102, and 104 and the "between" these arranged passive LED 95 and 96 can be seen.
  • the LEDs 76, 77, 78, 79 project with their respective spherically curved lenses 100, 101, 102, 103 into the respectively assigned light coupling element 30, 31, 32, 33, so that the light coupling elements 30, 31, 32, 33 incoming luminous flux, for example, substantially parallel through the Lichteinkopplungs implant 30, 31, 32, 33 in the direction of the arrow 116 is emitted to the outside.
  • further optical systems can be placed or upstream of a predetermined distribution of the luminous flux.
  • the printed circuit board 75 is received in the LED module 1 between a light guide 2 and a housing plate 66.
  • the light-guiding body 2 is fixedly mounted on the underside of the housing plate 66 via a mounting frame 20 and can be screwed to it, for example detachably.
  • a seal 65 is inserted and thus the mounting frame 20 sealed completely circumferentially about this seal 65 relative to the housing plate 66.
  • the mounting frame 20 and the light guide 2 may be integrally formed.
  • the LEDs 76, 77, 78 and 79 with their lenses 100, 101, 102, 103 protrude into the respective associated light coupling element 30, 31, 32, and 33, respectively.
  • the light rays emitted conically by the LEDs 76 to 79 or their lenses 100 to 103 are thus emitted in the direction of the arrow 116 essentially to a uniform luminous flux vertically downwards.
  • one of the passive LEDs 95 and 96 associated with the LEDs 76, 77 and 78, 79 can be activated by a corresponding control.
  • a luminous flux in the direction of the arrow 3 or 4 in the Lichteinkopplungs implant 30, 31 and 32, 33 is irradiated and of these, for example, in the direction of the respective arrow 116 redirected to the outside.
  • the corresponding LED or the corresponding Lichteinkopplungselement 31, 31 and 32, 33 thus appears outwardly still lit, so that the external appearance of the LED module 1 is not disturbed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (2)

  1. Module DEL (1) composé de plusieurs DEL (76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89) disposées sur une plaque conductrice (75), lesdites DEL comportant respectivement un encastrement avec une lentille (100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113), avec lequel les DEL (76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89) respectives ressortent du plan de plaque conductrice, les DEL (76 à 89) étant respectivement couplées à un élément de couplage de lumière (30, 31, 32, 33) d'un corps conducteur de lumière (2) et le flux lumineux respectif des DEL (76 à 89) associées provenant du module DEL (1) irradiant vers l'extérieur à travers l'élément de couplage de lumière (30, 31, 32, 33) respectivement associé, caractérisé en ce qu'au moins une DEL passive (95, 96, 97) est prévue sur la plaque conductrice (75) donnant accès aux DEL (76 à 89), ladite DEL passive pouvant être activée en cas de panne d'une des DEL (76 à 89) et que le flux lumineux émis par les DEL passives (95, 96, 97) (flèches 3 et 4) rayonne dans l'élément de couplage de lumière (30, 31, 32, 33) des DEL (76 à 89) en panne et est irradié vers l'extérieur via l'élément de couplage de lumière (30, 31, 32, 33).
  2. Module DEL selon la revendication 1, caractérisé en ce que plusieurs DEL (95, 96 et/ou 97) passives sont prévues, lesdites DEL étant associées à plusieurs DEL (78, 79, 80, 81, 89 et/ou 76, 77, 83, 87, 88 et/ou 82, 84, 85, 86) avec leurs éléments de couplage de lumières (30, 31, 32, 33) et que la DEL passive (95, 96 et/ou 97) respective peut être activée en cas de panne d'une des DEL (78, 79, 80, 81, 89 et/ou 76, 77, 83, 87, 88 et/ou 82, 84, 85, 86) respectivement associée.
EP11715878.2A 2010-04-11 2011-04-02 Module del avec del passive Not-in-force EP2561725B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010004874U DE202010004874U1 (de) 2010-04-11 2010-04-11 LED-Modul mit Passiv-LED
PCT/EP2011/001666 WO2011128030A1 (fr) 2010-04-11 2011-04-02 Module del avec del passive

Publications (2)

Publication Number Publication Date
EP2561725A1 EP2561725A1 (fr) 2013-02-27
EP2561725B1 true EP2561725B1 (fr) 2015-04-29

Family

ID=42357135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11715878.2A Not-in-force EP2561725B1 (fr) 2010-04-11 2011-04-02 Module del avec del passive

Country Status (7)

Country Link
US (1) US20130026508A1 (fr)
EP (1) EP2561725B1 (fr)
BR (1) BR112012026013A2 (fr)
DE (1) DE202010004874U1 (fr)
RU (1) RU2528559C2 (fr)
WO (1) WO2011128030A1 (fr)
ZA (1) ZA201207578B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5842440B2 (ja) * 2011-01-11 2016-01-13 東芝ライテック株式会社 照明器具
WO2014011670A1 (fr) * 2012-07-09 2014-01-16 Evolucia Lighting, Inc. Luminaire d'éclairage à semi-conducteurs avec réfracteurs modulaires
DE102016107370B4 (de) * 2016-04-21 2023-07-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Leuchteinheit und Lichttunnel

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6193392B1 (en) * 1999-05-27 2001-02-27 Pervaiz Lodhie Led array with a multi-directional, multi-functional light reflector
FI107085B (fi) * 1999-05-28 2001-05-31 Ics Intelligent Control System Valopaneeli
US6464373B1 (en) * 2000-11-03 2002-10-15 Twr Lighting, Inc. Light emitting diode lighting with frustoconical reflector
CA2336497A1 (fr) * 2000-12-20 2002-06-20 Daniel Chevalier Dispositif d'eclairage
US6509840B2 (en) * 2001-01-10 2003-01-21 Gelcore Llc Sun phantom led traffic signal
US6756893B1 (en) * 2002-01-14 2004-06-29 Robert Fernandez Light emitting diodes surrounding a vehicle lamp
DE10227117A1 (de) * 2002-06-14 2003-12-24 Harald Wiegand Tauchleuchte
DE10236211A1 (de) * 2002-08-07 2004-02-26 BSH Bosch und Siemens Hausgeräte GmbH Kücheneinrichtungselement
US7535089B2 (en) * 2005-11-01 2009-05-19 Massachusetts Institute Of Technology Monolithically integrated light emitting devices
RU2419741C2 (ru) * 2005-11-21 2011-05-27 Конинклейке Филипс Электроникс Н.В. Оптическая система
WO2008138097A1 (fr) * 2007-05-16 2008-11-20 Tony Mayer Système illuminateur de sortie optique constante

Also Published As

Publication number Publication date
RU2528559C2 (ru) 2014-09-20
WO2011128030A1 (fr) 2011-10-20
BR112012026013A2 (pt) 2016-06-28
US20130026508A1 (en) 2013-01-31
DE202010004874U1 (de) 2010-07-22
ZA201207578B (en) 2013-05-29
EP2561725A1 (fr) 2013-02-27
RU2012147701A (ru) 2014-05-20

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