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EP2439445B1 - Lampe à DEL dotée d'une zone de sortie de lumière incurvée - Google Patents

Lampe à DEL dotée d'une zone de sortie de lumière incurvée Download PDF

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Publication number
EP2439445B1
EP2439445B1 EP11184263.9A EP11184263A EP2439445B1 EP 2439445 B1 EP2439445 B1 EP 2439445B1 EP 11184263 A EP11184263 A EP 11184263A EP 2439445 B1 EP2439445 B1 EP 2439445B1
Authority
EP
European Patent Office
Prior art keywords
led
plate
shaped section
light
circuit board
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
EP11184263.9A
Other languages
German (de)
English (en)
Other versions
EP2439445A3 (fr
EP2439445A2 (fr
Inventor
Sascha Skergeth
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 EP2439445A2 publication Critical patent/EP2439445A2/fr
Publication of EP2439445A3 publication Critical patent/EP2439445A3/fr
Application granted granted Critical
Publication of EP2439445B1 publication Critical patent/EP2439445B1/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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F21S8/061—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension with a non-rigid pendant, i.e. a cable, wire or chain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/777—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having directions perpendicular to the light emitting axis
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0058—Reflectors for light sources adapted to cooperate with light sources of shapes different from point-like or linear, e.g. circular light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • 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
    • F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • 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 a luminaire having a first LED (LED: light-emitting diode) and a second LED, wherein the first LED and the second LED form parts of a light source of the luminaire, as well as with a circuit board arrangement, wherein the first LED and the second LED are arranged on the board arrangement. Moreover, the invention relates to a heat sink for such a lamp.
  • LED light-emitting diode
  • Such a luminaire is known from the prior art, which has a rectilinearly shaped light emission region. However, with the luminaire it is not possible to produce a light emitting area that appears curved or curved.
  • an LED array with a rigid-flexible support plate according to the features of the preamble of claim 1 is known, having rigid support areas, on each of which an LED is arranged.
  • the rigid support areas are connected to each other by an existing therebetween flexible, thinner support area.
  • a lighting device with an annular support on which substrates with LEDs are arranged.
  • the light emitted by the LEDs is deflected over a reflective surface and then emitted by the illumination device to the outside.
  • a luminaire with an annular housing is known.
  • the light source used lamps which are arranged in the center of the housing. The light emitted by the lamps is redirected by a reflector.
  • the invention has for its object to provide a corresponding lamp that offers improved design options with respect to the shape of the light emitting area of the lamp.
  • a heat sink for such a lamp should be specified.
  • a luminaire having a first LED and a second LED, the first LED and the second LED forming parts of a light source of the luminaire; Furthermore, the luminaire has a board arrangement, wherein the first LED and the second LED are arranged on the board arrangement.
  • the board assembly has a first plate-shaped portion with a first plane surface area on which the first LED is arranged and fixed by a first surface normal, and a second plate-shaped portion with a second planar surface area on which the second LED is arranged and by which a second surface normal is defined; In this case, one or the angle between the first surface normal and the second surface normal is greater than 0 ° and smaller than 180 °.
  • Such a configuration of the board arrangement makes it possible to generate a light output along a curved or curved line.
  • the first plate-shaped section and the second plate-shaped section are formed integrally.
  • the production of the lamp is possible in a simplified manner.
  • the board arrangement in this case has printed conductors which are designed both for the power supply of the first LED, and for the power supply of the second LED, soldering of individual boards by means of wires can be avoided, so that the production is made possible in a further simplified manner.
  • the first plate-shaped portion and the second plate-shaped portion are connected via a bend, by which a bending straight line is defined.
  • a bend by which a bending straight line is defined.
  • the board arrangement has at least one further plate-shaped section with at least one further planar surface area, on which at least one further LED is arranged and by which at least one further surface normal is defined, wherein the at least one further plate-shaped section and the first plate-shaped section or the at least one further plate-shaped portion and the second plate-shaped portion are connected via a further bend, by which a further bending straight line is defined.
  • the further bending straight line is oriented parallel to the first-mentioned bending straight line.
  • a particularly uniform light emitting area can be achieved if the first LED and the second LED and the at least one further LED are arranged such that they pass through a circular line or an ellipse line.
  • the LEDs are arranged in equidistant manner. By such equidistant arrangement of the LEDs, the homogeneity of the light emission phenomenon can be increased further.
  • the luminaire further comprises a reflector which is designed and arranged such that it deflects a light emitted by the first LED and the second LED in a direction which is oriented parallel to the bending straight line.
  • a reflector which is designed and arranged such that it deflects a light emitted by the first LED and the second LED in a direction which is oriented parallel to the bending straight line.
  • the board arrangement advantageously has an annular structure, preferably a closed-ring-shaped structure, for example a circular structure.
  • the board arrangement advantageously consists of one board or several boards; Preferably, it comprises or consists of at least one bendable metal core board.
  • the first LED is configured to emit light having a first wavelength spectrum and the second LED is configured to emit light having a second wavelength spectrum different from the first wavelength spectrum.
  • a heat sink for a luminaire which has a first plane surface area which is intended to be thermally conductively connected to the first plate-shaped section of the board arrangement and a second plane surface area provided for this purpose is to be thermally conductively connected to the second plate-shaped portion of the board assembly.
  • the heat sink has an annular structure.
  • the heat sink is composed of one or more segments, for example, between two and eight, segments. This makes it possible to avoid having to manufacture a separate heat sink for each of the LEDs and correspondingly arrange them separately.
  • the heat sink is configured in such a way that the first plane surface area and the second plane surface area are formed with respect to the annular structure facing outward.
  • This embodiment is particularly suitable for the case that the lamp has an annular light exit area.
  • the heat sink is configured such that the first plane surface area and the second plane surface area are formed with respect to the ring-shaped structure pointing inwards.
  • the lamp according to the invention advantageously has a heat sink according to the invention, wherein the heat sink is thermally conductively connected to the first LED and the second LED.
  • FIGS. 1 to 4 show an embodiment of a lamp according to the invention in different representations; Fig. 1 shows a perspective view obliquely from above, Fig. 2 a perspective view obliquely from below, Fig. 3 a representation of the cut lamp and Fig. 4 a cross-sectional view.
  • Fig. 2 indicated in sections can be generated with the light a curved or bent light emitting area 3.
  • the case may be provided a light output region 3 which appears to be circular overall.
  • the luminaire has a - in the Figures 3 and 4 designated - board assembly 6, in perspective in separated form in Fig. 5 is shown.
  • the lamp also has a light source, wherein one, in Fig. 5 designated, first LED 2 and a second LED 4 parts of the light source form.
  • the first LED 2 and the second LED 4 are arranged on the board assembly 6.
  • the circuit board arrangement 6 has a first plate-shaped region 8, which has a first planar surface region 82, wherein the first LED 2 is arranged on the latter.
  • the first planar surface region 82 defines a first surface normal N1 .
  • the board arrangement 6 has a second plate-shaped region 10, which has a second planar surface region 102, wherein the second LED 4 is arranged on the latter.
  • the second planar surface region 102 defines a second surface normal N2 .
  • the design is such that the angle W between the first surface normal N1 and the second surface normal N2 is greater than 0 ° and smaller than 180 °.
  • the angle W can be between 2 ° and 178 °.
  • first planar surface region 82 extends in a first plane and the second planar surface region 102 extends in a second plane, which is not oriented parallel to the first plane.
  • the first LED 2 it is possible in an advantageous manner in terms of manufacturing technology for the first LED 2 to be able to emit light in the direction of the first surface normal N1 and for the second LED 4 to emit light in the direction of the second surface normal N2.
  • a further LED which are arranged in an analogous manner as further parts of the light source of the luminaire on corresponding further sections of the circuit board arrangement 6, a light emission area can be effected, which overall appears curved or arched.
  • the angle W may be between 2 ° and 25 °, in particular between 5 ° and 10 °.
  • the light output region 3 can be made to appear particularly uniform appearing by multiple or many LEDs are used and the respective angle W is chosen to be the same size for two immediately adjacent the LEDs.
  • the LEDs are preferably mounted in equidistant arrangement on the board assembly 6.
  • the board assembly 6 is advantageously designed such that the first plate-shaped portion 8 and the second plate-shaped portion 10 are formed integrally.
  • the first plate-shaped portion 8 and the second plate-shaped portion 10 are made of one piece or integrally formed.
  • the board assembly 6 may be designed such that there are applied to it conductor tracks, which are designed both for powering the first LED 2 and for powering the second LED 4. In this way, a soldering of wires between the first portion 8 and the second portion 10 can be saved. In the case of more than two LEDs, a corresponding soldering to a chain of individual boards can be avoided.
  • a particularly simple production is made possible when the first section 8 and the second section 10 are connected by a bend, by means of which a bending straight line G1 is defined.
  • the bend can be formed by kinking along the straight line G1 .
  • the production of the bend is further facilitated if the board assembly 6 along the bend has a material-reduced area 810 whose thickness is less than a thickness of the first plate-shaped portion 8 and less than a thickness of the second plate-shaped portion 10.
  • a material-reduced area 810 can be formed for example by a Deutschenfräsen.
  • the board assembly 6 may be formed of a linear shape as shown in FIG Fig. 7 shown by corresponding bends very easy in the desired intended shape, as exemplified in Fig. 5 shown to be brought.
  • the lamp may further comprise a third LED 14 and the board assembly 6 while a third plate-shaped portion 12 having a third planar surface area 122, through which a third surface normal N3 is fixed, wherein the third LED 14 on the third planar surface area 122 is arranged.
  • the third LED 14 may also be part of the light source of the lamp in particular.
  • further LEDs may be provided in an analogous form, ie at least four or at least five LEDs, so that more generally the luminaire may have at least one further LED 14 and the board arrangement 6 at least one further plate-shaped section 12 with at least one further plan Surface area 122, is defined by the at least one further surface normal N3 , wherein the at least one further LED 14 is disposed on the at least one further surface region 122.
  • the at least one another LED 14 may also be part of the light source of the lamp.
  • a connection between the at least one further plate-shaped section 122 and the first plate-shaped section 8 or the second plate-shaped section 10 may be designed analogously to the connection between the first section 8 and the second section 10.
  • a further bend may be provided be set by a further bending straight line G2 , wherein the embodiment is preferably such that the further bending straight G2 is oriented parallel to the first-mentioned bending straight line G1 ; In this way, the production is further simplified.
  • the LEDs 2, 4, 14 can be arranged in such a way that they have a, in Fig. 4 exemplarily sketched, level E prevail.
  • the luminaire may be designed such that the first LED 2 and the second LED 4 and the at least one further LED 13 are arranged such that they pass through a circular line or an ellipse line.
  • the board arrangement 6 consists of a board, in particular of a bendable metal core board. But it may also have a plurality of boards, which are composed so to speak for shaping the light emitting area to a chain, each of the plurality of boards advantageously has at least two plate-shaped portions in the manner of the first plate-shaped portion 8 and the second plate-shaped portion 10.
  • the luminaire further comprises, by way of example in FIG Fig. 4 Reflector 15, which is designed and arranged so that it deflects a light emitted from the first LED 2 and the second LED 4 light in a direction L , which is oriented parallel to the bending line G1 .
  • the embodiment may be such that the direction L is normal to the plane E , in which the LEDs 2, 4, 14 are arranged.
  • a reflector 15 can be achieved in particular that a light output of the lamp appears less dependent on the viewing direction of a viewer.
  • the reflector 15 thereby - as exemplified in Fig. 4 shown - with respect to the first LED 2 a concave curvature.
  • Fig. 6 explained in more detail.
  • a viewer who looks at the board assembly 6 in the direction P will generally see a bent light emitting area or a correspondingly shaped light line pattern composed of individual light spots of the LEDs 2, 4, 14.
  • a light emitted by the first LED 2 to be shaded by the first section 8.
  • this also applies to all other LEDs 4, 14.
  • a viewing in the direction P is particularly advantageous if the LEDs 2, 4, 14 are arranged in the plane E , because the obtained curvature appears maximum under this line of sight.
  • the reflector 15 By using the reflector 15, a light emitted by the LEDs 2, 4, 14 can be redirected, so that such shading by one of the plate-shaped sections 8, 10, 12 of the board arrangement 6 can be avoided. In this way, the dependence of the appearance of the light output is reduced from the viewing direction.
  • the reflector 15 is formed analogous to the board assembly 6, here so circular.
  • the light can be - exemplarily in Fig. 4 have light exit region 152 through which a light emitted by the first LED 2, the second LED 4 and possibly the at least one further LED 14 light leaves the light.
  • the light exit region 152 may be shaped such that it forms or forms the light emission region of the luminaire.
  • the lamp is designed such that the light after interacting with the reflector 15, the light without further interaction with another optically active element of the light passes through the light exit region 152 and leaves the light.
  • the light exit region 152 can in particular be formed in a further plane E2 , which is parallel to the plane E, in which the LEDs 2, 4, 14 are arranged.
  • the plane E2 of the luminaire Light exit region 152 is oriented horizontally.
  • it may be in this case - as in the FIGS. 11a and 11b indicated - to act a pendant light or - as in Fig. 12 indicated - to act a recessed ceiling light. It may also (not shown in the figures) to act a ceiling mounted luminaire.
  • the luminaire may further comprise a cover member 154 arranged so that it is normal to the plane E2 or normal to the plane E or in a direction parallel to the plane when viewing the lamp Direction P all LEDs 2, 4, 14 hidden or covered. In this way it can be achieved that when viewing the lamp none of the LEDs 2, 4, 14 can be seen directly. This further contributes to the fact that the light output range appears particularly homogeneous.
  • the embodiment shown within can the lamp cause an advantageous mixing of a light of the first LED 2 with a light of the second LED 4, so that a viewer perceives the light emitting area appearing particularly homogeneous.
  • the first LED 2 generates light in a first "white tone” and the second LED 4 generates light in a second "white tone”.
  • a heat sink for the luminaire is advantageously provided.
  • Fig. 8 shows by way of example a perspective sketch of a corresponding heat sink 16.
  • the heat sink 16 may be provided in particular for passive cooling.
  • the heat sink 16 has a first planar surface region 20, which is intended to be thermally conductively connected to the first plate-shaped section 8 of the board arrangement 6, and a second planar surface region 22, which is provided therewith, to the second plate-shaped section 10 the circuit board assembly 6 to be thermally conductively connected.
  • the first planar surface region 20 of the heat sink 16 directly adjoins the second planar surface region 22, preferably with the formation of an edge which-in the state of the heat sink 16 installed in the light-is oriented parallel to the bending straight line G1 .
  • the heat sink 16 has an annular structure. This embodiment is suitable for use with a corresponding annularly shaped circuit board arrangement 6 for realizing a circular light exit region 152 or light emission region.
  • the cooling body 16 can accordingly have at least one further planar surface region 24, which is intended to be thermally conductively connected to the at least one further plate-shaped section 12 of the board arrangement 6.
  • the first planar surface region 20, the second planar surface region 22 and optionally the at least one further planar surface region 24 are furthermore preferably arranged in a plane E.
  • this last plane E can be, in particular, that plane E in which the LEDs 2, 4, 14 are arranged.
  • the heat sink 16 is advantageously made of a segment 161. This eliminates the requirement corresponding to many individual heatsink.
  • the heat sink 16 may be made of multiple segments 162, 164, 166.
  • the cooling body 16 may be composed of two, three, four, five or six or even more segments, wherein preferably each of the segments each has at least two planar surface regions, which are designed analogously to the first and the second planar surface region 20, 22.
  • the heat sink 16 is configured such that the first planar surface region 20 and the second planar surface region and optionally the at least one further planar surface region 24 with respect to the annular structure are formed facing outward.
  • the heat sink 16 advantageously has cooling ribs 168 which point inward with respect to the annular structure.
  • the embodiment is preferably such that the cooling fins 168 extend over the entire vertical extension of the heat sink 16 in the case of a horizontal orientation of the annular structure. The orientation of the cooling fins 168 and their distances are advantageously designed for the thermally optimal operation.
  • the configuration may be such that the first planar surface region and the second planar surface region and optionally the at least one further planar surface region are formed facing inwardly with respect to the annular structure.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (12)

  1. Lampe, comportant
    - une première DEL (2) et
    - une seconde DEL (4), dans laquelle la première DEL (2) et la seconde DEL (4) forment des parties d'une source lumineuse de la lampe, ainsi que
    - un agencement de carte de circuit imprimé (6), dans laquelle la première DEL (2) et la seconde DEL (4) sont disposées sur l'agencement de carte de circuit imprimé (6), dans laquelle l'agencement de carte de circuit imprimé (6) possède une première section en forme de plaque (8) dotée d'une première surface plane (82) sur laquelle la première DEL (2) est disposée et par laquelle une première normale à la surface (N1) est définie, et une seconde section en forme de plaque (10) dotée d'une seconde surface plane (102) sur laquelle la seconde DEL (4) est disposée et par laquelle une seconde normale à la surface (N2) est définie, dans laquelle un angle (W) entre la première normale à la surface (N1) et la seconde normale à la surface (N2) est supérieur à 0° et inférieur à 180°, dans laquelle la première section en forme de plaque (8) et la seconde section en forme de plaque (10) sont formées de façon contiguë, dans laquelle la première section en forme de plaque (8) et la seconde section en forme de plaque (10) sont reliées par une courbe par laquelle une droite de courbure (G1) est définie, caractérisée en ce que
    - un réflecteur (15), conçu et disposé de manière à ce qu'il dévie une lumière émise par la première DEL (2) et la seconde DEL (4) dans une direction (L), est orienté parallèlement aux droites de courbure (G1).
  2. Lampe selon la revendication 1, dans laquelle l'agencement de carte de circuit imprimé (6) possède des pistes conductrices conçues pour alimenter la première DEL (2) et la seconde DEL (4) avec de l'énergie.
  3. Lampe selon l'une des revendications précédentes, dans laquelle l'agencement de carte de circuit imprimé (6) possède le long de la courbe une zone de matériau réduite (810) dont l'épaisseur est inférieure à une épaisseur de la première section en forme de plaque (8) et inférieure à une épaisseur de la seconde section en forme de plaque (10).
  4. Lampe selon l'une des revendications précédentes, dans laquelle l'agencement de carte de circuit imprimé (6) possède au moins une section en forme de plaque supplémentaire (12) avec au moins un surface plane supplémentaire (122) sur laquelle est disposée au moins une autre DEL (14) et par laquelle au moins une autre normale à la surface (N3) est définie, dans laquelle l'au moins une section en forme de plaque supplémentaire (12) et la première section en forme de plaque (8) ou l'au moins une section en forme de plaque supplémentaire (12) et la seconde section en forme de plaque (10) sont reliées par l'intermédiaire d'une autre courbe par laquelle une autre droite de courbure (G2) est définie, dans laquelle, de préférence, la droite de courbure supplémentaire (G2) est orientée parallèlement aux droites de courbure (G1) susmentionnées.
  5. Lampe selon la revendication 4, dans laquelle la première DEL (2) et la seconde DEL (6) et l'au moins une DEL supplémentaire (14) sont disposées de manière à ce qu'elles traversent une ligne circulaire ou une ligne elliptique, dans laquelle les DEL (2, 6, 14) sont, de préférence, disposées d'une façon équidistante.
  6. Lampe selon l'une des revendications précédentes, dans laquelle l'agencement de la carte de circuit imprimé (6) possède une structure en forme d'anneau, de préférence, une structure en forme d'anneau fermé.
  7. Lampe selon l'une des revendications précédentes, dans laquelle l'agencement de carte de circuit imprimé (6) consiste en une carte de circuit imprimé ou en plusieurs cartes de circuit imprimé et, de préférence, comprend au moins une carte de circuit imprimé à âme métallique flexible.
  8. Lampe selon l'une des revendications précédentes, dans laquelle la première DEL (2) est configurée pour émettre une lumière avec un premier spectre de longueur d'onde et la seconde DEL (4) est configurée pour émettre une lumière avec un second spectre de longueur d'onde différant du premier spectre de longueur d'onde.
  9. Corps réfrigérant doté d'une lampe selon l'une des revendications précédentes, comportant
    - une première surface plane (20), prévue pour être reliée par conduction thermique à la première section en forme de plaque (8) de l'agencement de carte de circuit imprimé (6), et
    - une seconde surface plane (22), prévue pour être reliée par conduction thermique à la seconde section en forme de plaque (10) de l'agencement de carte de circuit imprimé (6).
  10. Corps réfrigérant doté d'une lampe selon la revendication 9, ayant une structure en forme d'anneau et en même temps, de préférence, composée d'un segment (161) ou de plusieurs segments (162, 164, 166).
  11. Corps réfrigérant doté d'une lampe selon la revendication 10, dans lequel la première surface plane (20) et la seconde surface plane (22) sont conçues pour se diriger vers l'extérieur par rapport à la structure en forme d'anneau, ou dans laquelle la première surface plane (20) et la seconde surface plane (22) sont conçues pour se diriger vers l'intérieur par rapport à la structure en forme d'anneau.
  12. Corps réfrigérant doté d'une lampe selon l'une des revendications de 9 à 11, dans lequel le corps réfrigérant (16) est relié à la première DEL (2) et à la seconde DEL (4) par conduction thermique.
EP11184263.9A 2010-10-08 2011-10-07 Lampe à DEL dotée d'une zone de sortie de lumière incurvée Not-in-force EP2439445B1 (fr)

Applications Claiming Priority (1)

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DE102010042193A DE102010042193A1 (de) 2010-10-08 2010-10-08 LED-Leuchte mit gebogenem Lichtabgebebereich

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EP2439445A3 EP2439445A3 (fr) 2012-11-28
EP2439445B1 true EP2439445B1 (fr) 2015-12-30

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CN103104872B (zh) * 2013-01-31 2015-11-04 广州市雷格斯光电科技有限公司 一种环形led照明装置
ES2866076T3 (es) 2014-05-21 2021-10-19 Signify Holding Bv Luminaria integrada LED decorativa
JP6549802B2 (ja) * 2016-01-21 2019-07-24 シグニファイ ホールディング ビー ヴィ 照明デバイス
KR102048315B1 (ko) 2016-04-15 2019-11-25 선전 로욜 테크놀로지스 컴퍼니 리미티드 조명 장치 및 그 제어 방법

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EP2439445A2 (fr) 2012-04-11
DE102010042193A1 (de) 2012-04-12

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