EP2339223B1 - Ampoule à DEL - Google Patents

Ampoule à DEL Download PDF

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Publication number
EP2339223B1
EP2339223B1 EP09180550.7A EP09180550A EP2339223B1 EP 2339223 B1 EP2339223 B1 EP 2339223B1 EP 09180550 A EP09180550 A EP 09180550A EP 2339223 B1 EP2339223 B1 EP 2339223B1
Authority
EP
European Patent Office
Prior art keywords
flexible substrate
illuminant device
led
light
dies
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
EP09180550.7A
Other languages
German (de)
English (en)
Other versions
EP2339223A1 (fr
Inventor
Michael Pauli
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.)
Novabase Digital TV Technologies GmbH
Original Assignee
Novabase Digital TV Technologies 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 Novabase Digital TV Technologies GmbH filed Critical Novabase Digital TV Technologies GmbH
Priority to EP09180550.7A priority Critical patent/EP2339223B1/fr
Publication of EP2339223A1 publication Critical patent/EP2339223A1/fr
Application granted granted Critical
Publication of EP2339223B1 publication Critical patent/EP2339223B1/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
    • 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
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/10—Light sources with three-dimensionally disposed light-generating elements on concave supports or substrates, e.g. on the inner side of bowl-shaped supports
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/90—Light sources with three-dimensionally disposed light-generating elements on two opposite sides of supports or substrates
    • 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 present invention relates to an illuminant device, and in particular to an illuminant device providing for the possibility of energy-saving and of a flexible illuminant device.
  • LED-based illuminant devices have a plurality of discrete LEDs, for example 10 or 30 LEDs, so that for a user such LED lamps appear totally different with respect to traditional bulbs. Further, as the LEDs are mounted on a rigid printed circuit board, such LED lamps can only be used as spots.
  • a mounting layer may be a flexible layer.
  • this flexible layer only allows a one-dimensional bending, so that the layer can be bended, but not be brought into a form, having an outer shape, the user is used to see.
  • a light emitting element is known using electronically activated light emitting elements, where a plurality of LED are arranged on a substrate.
  • an illuminant device comprising a flexible substrate, a plurality of LED-dies, a light-transmissive hollow body having an inner surface, wherein the LED-dies are die-attached to the flexible substrate, wherein the flexible substrate has an outer shape such that the flexible substrate can be spatially bended in at least two directions and wherein the spatially bended flexible substrate follows a shape of the inner surface of the light-transmissive hollow body.
  • an illuminant device which can be brought into an outer shape having an appearance, the user is used to see, and which has at the same time not a spot character, but a more or less uniform radiation characteristic over a large dihedral angle.
  • the flexible substrate of the illuminant device comprises terminals, wherein the LED-dies are connected to the terminals via printed circuit board tracks.
  • the light-transmissive hollow body of the illuminant device is translucent.
  • the light-transmissive hollow body of the illuminant device is made of plastic.
  • the light-transmissive hollow body of the illuminant device has a shape of a bulb.
  • the illuminant device can have almost the same appearance as a traditional light bulb, which is of advantage, when using a decorative luster, for which the used light bulb is an essential design or illumination aspect.
  • the flexible substrate of the illuminant device has planar convexities in form of at least one tongue.
  • those tongues can be bended so as to follow a shape of the inner surface of the light-transmissive hollow body.
  • the flexible substrate of the illuminant device has a cutting geometry comprising a plurality of slits so as to allow a bending along a convex surface.
  • the slits can be provided in a displaced or offset manner, so as to allow a kind of stretching of the flexible substrate, which allows a flexibility to form a shape of the flexible substrate.
  • the plurality of LED-dies of the illuminant device are distributed over the flexible substrate such that when bendingly aligned to the inner surface of the light-transmissive hollow body an illumination density on an outer surface of the light-transmissive hollow body for at least a part of the outer surface is almost constant.
  • this can be obtained by varying the lateral distance between the LED-dies on the flexible substrate depending on the distance to the inner surface of the light-transmissive hollow body.
  • the distance between the surface of the flexible substrate and the inner surface of the light-transmissive hollow body is not constant, the outer appearance of an almost constant illumination density can be achieved.
  • the illuminant device comprises a socket of a common illuminant system.
  • the illuminant device further comprises a power supply device for providing the LED-dies with electric energy.
  • the illuminant device in a standard socket in a home available energy grid without the need for an external transformer or separate power supply device.
  • the LED-dies of the illuminant device are die-attached to both sides of the flexible substrate.
  • each of the LED-dies of the illuminant device has a first contact and a second contact, wherein the first contact of each LED-die is connected to a printed circuit board track on a first side of the flexible substrate and the second contact of each LED-die is connected to a printed circuit board track on a second side of the flexible substrate.
  • the printed circuit board tracks of the illuminant device are flexible in its longitudinal direction.
  • Flexible circuit board tracks can be achieved by for example mixing a polymer material or a rubber material with a conductive additive or as an alternative by providing the printed circuit board tracks by a high-ductile metal material.
  • the illuminant device further comprises a receiver for remote control signals and a control unit wherein the control unit is adapted to control the LED-dies according to received remote control signals.
  • the LED-dies of the illuminant device are divided into a plurality of subgroups each being separately controllable by a control unit.
  • Fig. 1 illustrates a schematic view of an illuminant device according to the present invention.
  • the illuminant device comprises a flexible substrate 10 and a plurality of LED-dies 20, which LED-dies 20 are die-attached to the flexible substrate 10.
  • the flexible substrate is designed so as to form the inner surface 31 of a light-transmissive hollow body 30, so as to achieve an almost uniform light density over a wide dihedral or spatial angle so as to overcome the problem of only a spotted irradiation of light.
  • the flexible substrate 10 can be designed as an elastic material, which can be for example provided with the die-attached LED-dies 20 when being brought into a flat position, and then being bended or generally formed so as to be aligned to the inner surface 31 of the light-transmissive hollow body 30.
  • the flexible substrate 10 can be bended into at least two directions X, Y so as to be aligned to an e.g. spherical form of an illuminant device.
  • Fig. 2 illustrates a further exemplary embodiment of the invention, wherein the flexible substrate is again bended in the two directions X and Y, wherein the flexible substrate in the embodiment of Fig. 2 does not have to be elastic in the flat extension, but has to be only bendable in the at least two directions.
  • a flexible substrate can have a shape as shown in Fig. 3 and as described later on.
  • the flexible substrate 10 may have a plurality of tongues 13, which may form segments of the substrate.
  • the substrate can be provided with distance pieces 12, which can be integrally formed with the substrate and can be for example folded outwardly to form a distance piece to keep a distance to the inner surface 31 of the light-transmissive hollow body 30.
  • the flexible substrate can also be provided with a plurality of terminals 14, 15, which allow a contacting of the LED-dies being attached to the flexible substrate. This contacting can be carried out via printed circuit board tracks, which are not shown in Fig. 2 . These printed circuit board tracks can be on the same side as the die-attached LED-dies 20, but can also be provided on the backside of the flexible substrate.
  • Fig. 3 illustrates a possible cutting shape of the flexible substrate in a planar projection, wherein the flexible substrate 10 can be provided with a plurality of tongues 13, the number of which is four in Fig. 3 .
  • distance pieces 12 can be provided at the edge of the flexible substrate, wherein these distance pieces can be separately formed or integrally formed.
  • the distance pieces can be manufactured in the same cutting step and then folded outwardly to provide a distance to the inner surface of the light-transmissive hollow body, as shown in Fig. 2 .
  • the flexible substrate can be provided with a plurality of terminals 14, 15, 16, 17, wherein the terminals can be provided for example at the end of the tongues 13, but can also be provided at the center of the flexible substrate. It should be noted, that also a plurality of terminals can be provided over the entire flexible substrate in order to provide a plurality of supply points in order to keep the distance of the printed circuit board tracks short.
  • the flexible substrate can be provided with die-attached LED-dies 20, which are shown exemplarily for only one tongue in combination with the contacting circuit board tracks 19. It should be noted, that also for the remaining tongues a similar structure can be provided. It should also be noted, that the plurality of LED-dies are only shown for illustrative purposes, and that the actually used number of LED-dies may be much larger.
  • LED-dies For an illuminant device, for example thousands and ten thousands or more LED-dies can be used to provide a uniform light density over the entire flexible substrate.
  • Such flexible substrate with the die-attached LED-dies can be manufactured for example by using semiconductor die-attaching machines, which are commonly used for manufacturing electronic devices.
  • the tongues 13 can be bended into the two directions X and Y so as to form a three-dimensional surface, which can be aligned to the inner surface 31 of a light-transmissive hollow body 30.
  • Fig. 4 illustrates an alternative cutting geometry of the flexible substrate 10, onto which a plurality of LED-dies 20 is attached.
  • This cutting geometry includes a plurality of slits 18, wherein these slits are for example offset or displaced to each other so as to form a cutting geometry allowing to expand the flexible substrate.
  • This kind of cutting geometry allows to flexibly mantel the substrate onto e.g. a carrier body, so as to form an illumination cover.
  • the slits can be very short and narrow, so that for the user, this geometry may not be visible when being provided in the illuminant device. It should be noted, that in Fig.
  • Fig. 5 illustrates a sectional view of the flexible substrate 10 with die-attached LED-dies 20 in relation to an inner surface 31 of the light transmissive hollow body. If for example the distance between the surface of the flexible substrate 10 and the inner surface 31 of the light-transmissive hollow body 30 is not constant, the lateral distance of the LED-dies 20 on the surface of the substrate 10 can be varied, so as to achieve an appearance of an almost constant illumination density on the outer surface 32 of the light-transmissive hollow body.
  • Fig. 6 illustrates an illumination device according to an exemplary embodiment of the invention, wherein the illumination device is provided with a standard socket 40, which can be used in a commonly used light socket system. This can be for example an E27-socket or E14-socket, however, is not limited thereto.
  • the illumination device 1 further comprises a power supply device 50 for providing the LED-dies 20 with electric energy.
  • the illumination device may include a receiver 60 for receiving remote control signals and a control unit 70, so that it is possible to control the LED-dies based on the received remote control signals.
  • the power supply 50, the receiver 60, and the control unit 70 can be provided in a single unit. Such devices or unit can be provided for example in the socket 40 of the illuminant device 1.
  • Fig. 7 illustrates a sectional view of the substrate 10, wherein the substrate 10 is provided with LED-dies 20 on both sides 11a and 11b of the substrate.
  • each LED-die has two contacts 21 and 22, wherein the first contact 21 is contacted to the first side 11a of the substrate 10, wherein the second contact 22 is contacted to the second side 11b of the flexible substrate 10.
  • the flexible substrate 10 can be provided with printed circuit board tracks 19, onto which the contacts 21 and 22 are connected by for example a wire-bonding process.
  • Fig. 8 illustrates a perspective view of the flexible substrate 10, wherein the LED-dies 20 are provided only on one side 11a of the flexible substrate 10, wherein the other side 11b of the flexible substrate is only provided with the contacts of the LED-dies and the printed circuit board tracks 19.
  • the printed circuit board tracks can be designed as a flat structure with recesses for the LED-dies, however, can also be provided with tracked paths, although not shown.
  • the LED-dies can also be provided and attached directly onto a conductive layer, in order to simplify the contacting of the LED-dies.
  • Fig. 9 illustrates a flexible substrate 10 with a plurality of printed circuit board tracks 19, which tracks connect each of the plurality of LED-dies 20 being die-attached onto the surface of the flexible substrate 10.
  • the LED-dies 20 can be divided into a plurality of subgroups A, B, C, D, in order to control the different subgroups separately. This can be for example useful when the different subgroups A, B, C, D have for example different colors, so that by separately controlling the subgroups A, B, C, and D, almost every desired color can be achieved.
  • These different subgroups can be for example contacted via different terminals 14, 15, 16, 17, so as to provide the respective LED-dies 20 with respective control signals of a control unit, which is not shown in Fig. 9 .
  • Fig. 10 illustrates a further exemplary embodiment of the invention, wherein the flexible substrate is provided with a plurality of contacts 14, which are distributed over the flexible substrate.
  • the effective path length of the printed circuit board tracks can be kept low in order to keep the required energy low.
  • the several contact terminals 14 can be provided with a contacting system having for example a larger cross-sectional diameter than for example the printed circuit board tracks, so as to keep the ohmic resistance low, which increases the efficiency of the illuminant device.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (14)

  1. Dispositif illuminant comprenant :
    un substrat souple (10) ;
    une pluralité de dés à DEL (20) ;
    un corps creux transmetteur de lumière (30) possédant une surface intérieure (31) ;
    dans lequel les dés à DEL sont reliés au substrat souple ;
    dans lequel le substrat souple possède une forme extérieure (11) permettant de courber spatialement le substrat souple dans au moins deux directions (X, Y), et
    dans lequel le substrat souple courbé spatialement suit une forme de la surface intérieure du corps creux transmetteur de lumière ;
    caractérisé en ce que la pluralité de dés à DEL (20) se trouvent à des distances non-constantes entre le substrat souple (10) et la surface intérieure du corps creux transmetteur de lumière et sont répartis sur le substrat souple (10) avec une variation de la distance latérale des dés à DEL, de sorte que lorsqu'ils sont alignés par rapport à la surface intérieure du corps creux transmetteur de lumière (30), une densité lumineuse sur une surface extérieure (32) du corps creux transmetteur de lumière pour au moins une partie de la surface extérieure est quasiment constante.
  2. Dispositif illuminant selon la revendication 1, dans lequel le substrat souple (10) comprend des bornes (14, 15, 16, 17), dans lequel les dés à DEL (20) sont reliés aux bornes par des pistes de carte à circuit imprimé (19).
  3. Dispositif illuminant selon l'une quelconque des revendications 1 et 2, dans lequel le corps creux transmetteur de lumière (30) est translucide.
  4. Dispositif illuminant selon l'une quelconque des revendications 1 à 3, dans lequel le corps creux transmetteur de lumière (30) est constitué de plastique.
  5. Dispositif illuminant selon l'une quelconque des revendications 1 à 4, dans lequel le corps creux transmetteur de lumière (30) présente une forme d'ampoule.
  6. Dispositif illuminant selon l'une quelconque des revendications 1 à 5, dans lequel le substrat souple (10) comporte des convexités planaires (13) sous la forme d'au moins une langue.
  7. Dispositif illuminant selon l'une quelconque des revendications 1 à 6, dans lequel le substrat souple (10) présente une géométrie découpée comprenant une pluralité de fentes (18), de manière à permettre une courbure le long d'une surface convexe.
  8. Dispositif illuminant selon l'une quelconque des revendications 1 à 7, comprenant en outre une douille (40) d'un système illuminant commun.
  9. Dispositif illuminant selon l'une quelconque des revendications 1 à 8, comprenant en outre un dispositif d'alimentation électrique (50) pour fournir de l'énergie électrique aux dés à DEL (20).
  10. Dispositif illuminant selon l'une quelconque des revendications 1 à 9, dans lequel les dés à DEL (20) sont reliés aux deux côtés (11a, 11b) du substrat souple (10).
  11. Dispositif illuminant selon l'une quelconque des revendications 1 à 10, dans lequel chacun des dés à DEL (20) possède un premier contact (21) et un deuxième contact (22), dans lequel le premier contact de chaque déclencheur 140 à DEL est relié à une piste de carte à circuit imprimé (19) sur un premier côté (11a) du substrat souple, et le deuxième contact de chaque dé à DEL est relié à une piste de carte à circuit imprimé sur un deuxième côté (11b) du substrat souple (10).
  12. Dispositif illuminant selon l'une quelconque des revendications 2 ou 11, dans lequel les pistes de carte à circuit imprimé (19) sont souples dans son sens longitudinal.
  13. Dispositif illuminant selon l'une quelconque des revendications 1 à 12, comprenant en outre un récepteur (60) pour des signaux de contrôle à distance et une unité de contrôle (70), dans lequel l'unité de contrôle est adaptée pour contrôler les dés à DEL en fonction des signaux de contrôle à distance reçus.
  14. Dispositif illuminant selon l'une quelconque des revendications 1 à 13, dans lequel les dés à DEL (20) sont divisés en une pluralité de sous-groupes (A, B, C, D) respectivement contrôlables séparément par une unité de contrôle (70).
EP09180550.7A 2009-12-23 2009-12-23 Ampoule à DEL Not-in-force EP2339223B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09180550.7A EP2339223B1 (fr) 2009-12-23 2009-12-23 Ampoule à DEL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09180550.7A EP2339223B1 (fr) 2009-12-23 2009-12-23 Ampoule à DEL

Publications (2)

Publication Number Publication Date
EP2339223A1 EP2339223A1 (fr) 2011-06-29
EP2339223B1 true EP2339223B1 (fr) 2014-05-14

Family

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Application Number Title Priority Date Filing Date
EP09180550.7A Not-in-force EP2339223B1 (fr) 2009-12-23 2009-12-23 Ampoule à DEL

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Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
EP2742782B1 (fr) * 2011-09-06 2015-05-13 Koninklijke Philips N.V. Procédé de fabrication d'une matrice de del
DE102012012853A1 (de) 2012-06-26 2014-05-28 Detlev Stupperich Lampe mit einem zentralen Gewinde und seitlich zur Längsachse des Gewindes strahlendem Licht, dessen Richtung um diese Achse verstellbar ist.
DE102012020918A1 (de) 2012-10-25 2014-04-30 Detlev Stupperich Lampe mit einer zentralen Fassung und um zwei Achsen verschwenkbarem Lichtkegel
CN103032734A (zh) * 2012-12-06 2013-04-10 中山市美耐特光电有限公司 一种led灯泡
DE202013009434U1 (de) * 2013-07-12 2013-11-05 Vosla Gmbh Lampe
WO2015039999A1 (fr) * 2013-09-19 2015-03-26 Koninklijke Philips N.V. Ampoule électrique à del et sa fabrication
DE102014202761A1 (de) * 2014-02-14 2015-08-20 Osram Gmbh Beleuchtungseinheit mit einer Mehrzahl LEDs
EP3140593B1 (fr) * 2014-05-09 2018-10-24 Philips Lighting Holding B.V. Dispositif d'éclairage et luminaire
CN106415116A (zh) 2014-06-05 2017-02-15 飞利浦照明控股有限公司 照明设备、灯具和制造方法
WO2016020782A1 (fr) * 2014-08-05 2016-02-11 Osram Gmbh Structure de support pour dispositifs d'éclairage, dispositif et procédé correspondants

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JP4076329B2 (ja) * 2001-08-13 2008-04-16 エイテックス株式会社 Ｌｅｄ電球
CN2637885Y (zh) * 2003-02-20 2004-09-01 高勇 发光面为曲面的led灯泡
US7086756B2 (en) 2004-03-18 2006-08-08 Lighting Science Group Corporation Lighting element using electronically activated light emitting elements and method of making same
JP2006164879A (ja) * 2004-12-10 2006-06-22 Matsushita Electric Ind Co Ltd 照明光源、照明システム、および調光方式
JP2006244725A (ja) * 2005-02-28 2006-09-14 Atex Co Ltd Ｌｅｄ照明装置
DE102006033894B4 (de) * 2005-12-16 2019-05-09 Osram Gmbh Beleuchtungseinrichtung und Anzeigegerät mit einer Beleuchtungseinrichtung
US20070195544A1 (en) * 2006-01-26 2007-08-23 Graves Chester Jr Remote controlled LED light bulb
US7736020B2 (en) * 2006-06-16 2010-06-15 Avago Technologies General Ip (Singapore) Pte. Ltd. Illumination device and method of making the device
US20090026982A1 (en) * 2007-07-24 2009-01-29 American Bright Lighting, Inc. Structure for LED lamp and method for forming the improved structure
DE102007044628A1 (de) * 2007-09-19 2009-04-02 Osram Gesellschaft mit beschränkter Haftung Scheinwerferlampe und deren Verwendung

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Publication number Publication date
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