EP2561725A1 - Led-modul mit passiv-led - Google Patents
Led-modul mit passiv-ledInfo
- Publication number
- EP2561725A1 EP2561725A1 EP11715878A EP11715878A EP2561725A1 EP 2561725 A1 EP2561725 A1 EP 2561725A1 EP 11715878 A EP11715878 A EP 11715878A EP 11715878 A EP11715878 A EP 11715878A EP 2561725 A1 EP2561725 A1 EP 2561725A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- led
- passive
- leds
- circuit board
- emitted
- 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
Links
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 comprising a plurality of 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 the respective luminous flux of the associated LED from the LED is emitted to the outside by the respectively associated light coupling element.
- LED modules consisting of several arranged on a PCB LED have been known for some time.
- Such an LED consists of an anode connection, a cathode connection, and a "bowl” in which an LED crystal is inserted.
- This LED crystal is connected to the anode connection via a bonding wire.
- Embedding which is usually made of a plastic. As a rule, 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.
- sol che LED in a matrix-like multiple arrangement on a circuit board to submit a sufficient luminosity to it ⁇ .
- the lifespan of such LEDs is given as several thousand hours, it is nevertheless possible to observe that individual LEDs of an LED module may fail prematurely. If several LEDs are provided, the failure of one LED with respect to the total light output of the entire LED module is generally negligible. However, the failure of an LED when viewing the LED module is visible to the outside and disturbs the one hand, the appearance of the LED module. Although the luminous intensity of the LED module is still sufficient if one LED fails, the LED module is often replaced due to this disturbing appearance, so that unnecessary costs are incurred here. Accordingly, 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 is activated in case of failure of the LED and that emitted by the passive LED luminous flux radiates into the Lichteinkopp- element of the respective LED and is emitted via the light-introducing element to the outside.
- the "coupling in” 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.
- FIG. 1 shows a perspective top view of a printed circuit board with a mounted LED and a plurality of passive LEDs arranged between the LEDs;
- Fig. 2 is a sectional view II-II of Fig. 1 of a fully assembled serving as a light source LED module.
- Fig. 1 shows an example of 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 is each provided with an outwardly projecting lens 100.
- a total of three Pas ⁇ SIV LED 95, 96 and 97 are provided.
- the passive LED 95 is vorlie ⁇ quietly the LED 78, 79, 80, 81, 89 light-optically conjugate, so that a beam emitted from the passive LED luminous flux these adjacent LED 78, 79, 80, 81, can reach the 89th
- 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 in the region of the LEDs 76 and 88 is provided with a schematically illustrated electrical connection plug 115, via which all the LEDs 76 to 89 can be supplied together or in groups with the required operating energy.
- FIG. 2 shows a simplified sectional illustration II-II from FIG. 1 of a mounted LED module 1. Due to the sectional guidance, only those arranged on the printed circuit board 75 are accordingly arranged in FIG LED 76, 77, 78 and 79 with their lenses 100, 101, 102, and 104 and the "between" these arranged passive LED 95 and 96 recognizable.
- 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 is coupled into the light coupling elements 30, 31, 32, 33 incoming luminous flux, for example, substantially parallel through the ⁇ Lichteinkopplungsiana 30, 31, 32, 33 is emitted in the direction of the arrow 116 to the outside.
- further optical systems can be placed or upstream of a predetermined distribution of the luminous flux.
- the printed circuit board 75 in the LED module 1 is accommodated between a light-conducting body 2 and a housing plate 66.
- the light guide body 2 is mounted on the present ei ⁇ NEN mounting frame 20 fixed on the underside of the Genzouseplat ⁇ te 66 and may be with this example, comparable detachably screwed.
- 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 77, 78 can be activated by a corresponding control.
- a luminous flux in the direction of the arrow 3 or 4 in the Lichteinkopplungs may 30, 31 or 32, 33 and radiated from this, for example, in the direction of the respective arrow 116 redirected to the outside.
- the corresponding LED or the corresponding Lichteinkopplungs- element 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)
Abstract
Description
Claims
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 (de) | 2010-04-11 | 2011-04-02 | Led-modul mit passiv-led |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2561725A1 true EP2561725A1 (de) | 2013-02-27 |
EP2561725B1 EP2561725B1 (de) | 2015-04-29 |
Family
ID=42357135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11715878.2A Not-in-force EP2561725B1 (de) | 2010-04-11 | 2011-04-02 | Led-modul mit passiv-led |
Country Status (7)
Country | Link |
---|---|
US (1) | US20130026508A1 (de) |
EP (1) | EP2561725B1 (de) |
BR (1) | BR112012026013A2 (de) |
DE (1) | DE202010004874U1 (de) |
RU (1) | RU2528559C2 (de) |
WO (1) | WO2011128030A1 (de) |
ZA (1) | ZA201207578B (de) |
Families Citing this family (3)
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 (en) * | 2012-07-09 | 2014-01-16 | Evolucia Lighting, Inc. | Solid state lighting luminaire with modular refractors |
DE102016107370B4 (de) * | 2016-04-21 | 2023-07-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Leuchteinheit und Lichttunnel |
Family Cites Families (11)
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 (en) * | 2000-12-20 | 2002-06-20 | Daniel Chevalier | Lighting device |
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 (en) * | 2007-05-16 | 2008-11-20 | Tony Mayer | Constant optical output illuminator system |
-
2010
- 2010-04-11 DE DE202010004874U patent/DE202010004874U1/de not_active Expired - Lifetime
-
2011
- 2011-04-02 BR BR112012026013A patent/BR112012026013A2/pt not_active IP Right Cessation
- 2011-04-02 WO PCT/EP2011/001666 patent/WO2011128030A1/de active Application Filing
- 2011-04-02 RU RU2012147701/07A patent/RU2528559C2/ru not_active IP Right Cessation
- 2011-04-02 US US13/640,389 patent/US20130026508A1/en not_active Abandoned
- 2011-04-02 EP EP11715878.2A patent/EP2561725B1/de not_active Not-in-force
-
2012
- 2012-10-08 ZA ZA2012/07578A patent/ZA201207578B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2011128030A1 * |
Also Published As
Publication number | Publication date |
---|---|
RU2528559C2 (ru) | 2014-09-20 |
WO2011128030A1 (de) | 2011-10-20 |
BR112012026013A2 (pt) | 2016-06-28 |
EP2561725B1 (de) | 2015-04-29 |
US20130026508A1 (en) | 2013-01-31 |
DE202010004874U1 (de) | 2010-07-22 |
ZA201207578B (en) | 2013-05-29 |
RU2012147701A (ru) | 2014-05-20 |
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