EP2049835B1 - Lampe - Google Patents

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Publication number
EP2049835B1
EP2049835B1 EP07788239A EP07788239A EP2049835B1 EP 2049835 B1 EP2049835 B1 EP 2049835B1 EP 07788239 A EP07788239 A EP 07788239A EP 07788239 A EP07788239 A EP 07788239A EP 2049835 B1 EP2049835 B1 EP 2049835B1
Authority
EP
European Patent Office
Prior art keywords
light
reflector
emitting diode
luminaire according
luminaire
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
EP07788239A
Other languages
German (de)
English (en)
Other versions
EP2049835A1 (fr
Inventor
Jens Clark
Udo Custodis
Ulrich Henger
Ulrich Biebel
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.)
Osram GmbH
Original Assignee
Osram GmbH
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Filing date
Publication date
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Publication of EP2049835A1 publication Critical patent/EP2049835A1/fr
Application granted granted Critical
Publication of EP2049835B1 publication Critical patent/EP2049835B1/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
    • 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
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • 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
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • H05B35/00—Electric light sources using a combination of different types of light generation
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21Y2103/37—U-shaped
    • 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
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • 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
    • F21Y2113/00—Combination of light sources
    • F21Y2113/20—Combination of light sources of different form
    • 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 according to claim 1.
  • Such a lamp is for example in the WO 2006/086967 (published on August 24, 2006).
  • This document describes a color adaptive illumination system with a first light source in the form of at least one low-pressure discharge lamp and with a second light source in the form of at least two light-emitting diodes.
  • the luminaire according to the invention has a first light source, which comprises at least one fluorescent lamp or an incandescent lamp, and a second light source, which comprises at least one light-emitting diode arrangement, and a.
  • a reflector for the light emitted by the light sources wherein a cooling device is provided for the at least one light emitting diode array, which is thermally coupled to the at least one light emitting diode array and disposed on the reflector, and wherein the light comprises a light transmitting, light scattering means, which in the Beam path of the emitted light from the lamp is arranged.
  • the first light source white light is generated with a color location and color temperature defined by the properties of this light source, while the color locus and / or the color temperature is shifted to a desired value by means of the second light source comprising at least one light-emitting diode arrangement.
  • the color locus of the luminaire along the Planckian curve in FIG FIG. 6 to color locations lower color temperature to be moved.
  • the at least one light emitting diode array consists of a combination of a plurality of light emitting diodes, which, due to their small size, in the vicinity of the first light source can be placed so that by means of a reflector and a light-transmitting Lichtstreuschs the light generated by both light sources can be homogeneously mixed and the viewer can no longer assign the light emitted by the lamp light of the first or second light source.
  • the cooling device required for operating the at least one light-emitting diode arrangement is arranged on the reflector, whereby a simple mounting of the light-emitting diode arrangement and a good thermal coupling of light-emitting diode arrangement and cooling device are made possible.
  • the color temperature of the white light emitted by the lamp can be varied within wide limits, for example between 2700 Kelvin and 6000 Kelvin, or alternatively the color tone of the light emitted by the lamp over the entire color spectrum, from bluish to reddish, can be varied ,
  • the reflector has an inner side facing the two light sources, a light-reflecting inner side and an outer side facing away from the light sources, the cooling device for the at least one light-emitting diode arrangement being arranged on the outer side of the reflector.
  • the reflector can be used for both light sources and the cooling device is not heated by the electromagnetic radiation emitted by the light sources.
  • the cooling device is arranged for ease of mounting on the edge of a light exit opening of the reflector.
  • the at least one light-emitting diode arrangement is advantageously arranged on the inside of the reflector, in order to allow simple mounting and optimum coupling to the light-reflecting surface of the reflector.
  • the at least one light emitting diode array is mounted on a surface of the cooling device to ensure good thermal coupling between the light emitting diodes and the cooling device.
  • this surface of the cooling device faces the outside of the reflector and the at least one light-emitting diode arrangement protrudes through one or more openings in the reflector, to allow a simple and space-saving installation of the light emitting diode array and the associated cooling device on the reflector.
  • the cooling device can thereby be fixed to the outside of the reflector, so that the light-emitting diode arrangement protrudes through the aforementioned openings.
  • a thermal insulation layer can be arranged between the surface of the cooling device provided with the at least one light-emitting diode arrangement and the outside of the reflector.
  • This insulating layer may for example consist of a plastic with low thermal conductivity or be formed by the reflector itself, if this is made of a plastic of low thermal conductivity and its light-reflecting inside is formed, for example, as a metallization.
  • the cooling device advantageously has cooling ribs which are arranged such that they lie outside the beam path of the light emitted by the light. As a result, the cooling fins cause no shading and are not heated by the light emitted by the lamp light.
  • the cooling device may be formed as a cooling plate, for example made of aluminum sheet, over the surface of which the heat generated by the lamp is dissipated to the outside. In this case, advantageously, a gap or cavity between the heat sink and the reflector is provided to place there an operating device or an operating circuit for the light sources.
  • the at least one light emitting diode array comprises a combination of red or orange light emitting diodes with green light emitting diodes and the first light source consists of one or more fluorescent lamps.
  • fluorescent lamps are used which generate light that is daylight during their operation, that is to say with a color temperature in the range of approximately 5400 Kelvin to 6000 Kelvin.
  • red and orange LEDs are used which generate light that is daylight during their operation, that is to say with a color temperature in the range of approximately 5400 Kelvin to 6000 Kelvin.
  • red and orange LEDs with green LEDs, white light with low color temperature and color temperature can be generated of the light emitted by the lamp can be efficiently reduced to values up to 2700 Kelvin.
  • the red and orange and green LEDs have a higher efficiency than other complementary colored combination of light emitting diodes, such as blue and yellow LEDs.
  • the first light source fluorescent lamps are preferred to incandescent lamps, because the former have a higher luminous efficacy and daylight-like light can be generated by halogen in
  • the at least one light emitting diode array comprises light emitting diodes which produce warm white light during operation, that is, white light having a color temperature in the range of about 2700 Kelvin to 3000 Kelvin, and the first light source consists of one or more light emitting diodes.
  • the first light source consists of one or more light emitting diodes.
  • fluorescent lamps are used which generate daylight-like light during their operation.
  • the at least one light-emitting diode arrangement comprises a combination of red, green and blue light-emitting diodes.
  • the translucent, light-diffusing means is arranged according to the preferred embodiments of the light exit opening of the reflector and formed as a cover, whereby a simple assembly is made possible and ensures that all, generated by the light sources light must pass the light scattering agent.
  • the luminaire according to the invention is equipped with a color sensor which serves to control the color temperature or the color of the light emitted by the luminaire.
  • a color sensor which serves to control the color temperature or the color of the light emitted by the luminaire.
  • an automatic adjustment of the color temperature or the color tone of the light emitted by the light to changes in the natural ambient light can be carried out during the course of the day.
  • an exact color coordination of the individual luminaires can be performed on each other, for example to adapt the lighting in a room to changes in the natural ambient light.
  • the luminaire according to the invention is equipped with a brightness sensor which serves to control the brightness of the light emitted by the luminaire.
  • a brightness sensor which serves to control the brightness of the light emitted by the luminaire.
  • an automatic adjustment of the brightness of the light emitted by the light to the change in the brightness of the natural ambient light can be carried out during the day.
  • the combination of a color sensor and a brightness sensor is particularly preferred.
  • the reflector is formed trough-like, aligned the first light source parallel to the longitudinal extent of the trough-like reflector and the second light source of two light emitting diode arrangements formed on both sides of the first light source are arranged and each extending parallel to the longitudinal extent of the reflector.
  • the aforementioned reflector can be manufactured in a simple manner, for example as a plastic high-pressure profile, wherein the inside of the channel-shaped reflector is metallized, for example, in order to achieve a high degree of light reflection.
  • the two light-emitting diode arrangements are preferably arranged in each case along an edge of the trough-like reflector running parallel to the longitudinal extent. This allows the associated cooling device on the edge of Reflectors are fixed.
  • the two light-emitting diode arrays are each arranged along a reflector section bent back in the direction of the inside gutter floor, so that the light emitted by the light-emitting diode arrangements is reflected at least once before leaving the light at the inside of the reflector that is designed to reflect light.
  • the cooling devices of the two light-emitting diode arrangements preferably extend along the outer sides of the aforementioned bent-back reflector sections, so that they can be fixed to these bent-back or angled reflector sections.
  • the reflector is hood-like and substantially rotationally symmetrical and arranged the first light source along the axis of rotation of the reflector, and the second light source comprises at least one annular or ring segment-shaped light-emitting diode array, which is arranged on the inside and coaxial with the axis of rotation of the reflector.
  • This lamp is well suited to illuminate only a certain part of a room or to realize an accent lighting.
  • the cooling device for the at least one annular or ring-segment-shaped light-emitting diode arrangement is advantageously arranged on the outside of the reflector, at the level of the light-emitting diode arrangement in order to allow a good thermal coupling between the light-emitting diodes and the cooling device and a simple mounting of the cooling device on the reflector and a heating of the cooling device to avoid the light emitted by the lamp.
  • the first light source is preferably a single-capped fluorescent lamp whose longitudinal extension axis is aligned parallel to the axis of rotation of the reflector. As a result, the reflector can be fixed to the base of the fluorescent lamp.
  • the use of a single-ended fluorescent lamp has the advantage of a higher light output compared to a single-ended incandescent lamp.
  • the one-sided capped fluorescent lamp is a so-called compact fluorescent lamp having an operating device integrated in the base. As a result, no separate operating device for the lamp is required.
  • FIGS. 1, 2 and 3 is schematically illustrated a lamp according to the first embodiment of the invention.
  • This lamp comprises a channel-shaped reflector 1, which consists for example of a plastic extruded profile or aluminum sheet.
  • the inner side 10 of the reflector 1 is formed reflecting light.
  • the inside 10 of the reflector 1 for example, metallized to achieve a high degree of light reflectance.
  • a rod-shaped fluorescent lamp 2 is arranged, the phosphor coating is designed such that it emits during operation light like light with a color temperature of 6000 Kelvin.
  • the longitudinal axis of the fluorescent lamp 2 is aligned parallel to the longitudinal axis of the reflector 1.
  • the reflector 1 is mirror-symmetrical with respect to its center line or longitudinal axis and the fluorescent lamp 2 is arranged along the longitudinal axis, so that the lamp also has mirror symmetry.
  • the reflector 1 has at both, parallel to its longitudinal axis extending gutter edges in the direction of the inside 10 and the gutter bottom by an angle of about 90 degrees bent back reflector sections 11, 12. These reflector sections 11, 12 delimit the light exit opening of the channel-shaped reflector 1. This light exit opening is covered by means of a translucent, light-scattering plastic cover 3.
  • the lamp has two light emitting diode arrangements 4, 5, each consisting of a plurality of pairs of light emitting diodes 41, 42 and 51, 52, each light emitting diode pair 41, 42 of a red 41 and 51 and a green 42 and 52 lit. LED is formed.
  • Each light-emitting diode arrangement 4, 5 is assigned a cooling device 6, 7 equipped with cooling fins 60, 70 for the light-emitting diode pairs 41, 42, 51, 52.
  • the cooling devices 6, 7 are each, for example, an aluminum plate which has cooling fins 60 or 70 integrally formed on one side.
  • the light-emitting diode arrangements 4, 5 and the cooling devices 6, 7 extend over the Entire length of the channel-shaped reflector 1.
  • the LEDs 41, 42 and 51, 52 are mounted on a flat, facing away from the cooling fins 60 and 70 surface 61 and 71 of the cooling device 6 and 7 respectively.
  • This surface 61 or 71 of the cooling device 6 or 7 is attached via a thermal insulation layer 8 on the outside of the bent-back reflector section 11 and 12, wherein the light-emitting diode pairs 41, 42 and 51, 52 respectively by passroye openings in the respective reflector section 11th or 12 protrude through, so that they face the inside 10 of the reflector 1.
  • the insulating layer 8 is, for example, a plastic with low thermal conductivity.
  • the attachment of the cooling devices 6, 7 with the light-emitting diode pairs 41, 42 or 51, 52 mounted thereon on the bent-back reflector sections 11 and 12 can be carried out, for example, by means of screws, clamps, adhesives or similar fastening means.
  • the thermal insulation layer 8 may optionally be dispensed with if the reflector 1 is made of a plastic extruded profile.
  • the light-emitting diode pairs 41, 42 and 51, 52 of the two light-emitting diode arrays 4 and 5 are each arranged equidistantly along a straight line extending parallel to the longitudinal axis of the reflector 1 on both sides of the fluorescent lamp 2.
  • the reflector 1 From the end faces of the reflector 1 project electrical connections 9 for the power supply of the fluorescent lamp 2 and the LED assemblies 4, 5 out.
  • a color sensor 91 and a brightness sensor 92 are attached in order to allow color and brightness control of the light emitted by the light in dependence on the natural ambient light.
  • the operating circuits for the fluorescent lamp 2 and the LED assemblies 4, 5 are arranged outside of the reflector 1 and therefore not shown in the figures.
  • the lamp may additionally have a housing in which the aforementioned operating circuits are housed.
  • the light emitting diode arrangements 4 and 5 with the LEDs 41, 42 and 51, 52 are not normally visible because they are covered by the cooling device 6 and 7 and the cooling fins 60 and 70 and the reflector sections 11 and 12 respectively.
  • the fluorescent lamp 2 During operation, the fluorescent lamp 2 generates white light with a color temperature of about 6000 Kelvin.
  • the closely spaced LEDs 41, 42 and 51, 52 of each pair of LEDs produce red and green light, which is mixed homogeneously after reflection on the inside 10 of the reflector 1 and passing the light scattering cover 3 as yellowish mixed light the bluish, daylight fluorescent light, such that the light emitted by the lamp has a reduced color temperature compared to the light generated by the fluorescent lamp 2.
  • the red LEDs 41 and 51 can be dimmed independently of the green LEDs 42 and 52, respectively, that is, the brightness of the red and green LED lights mixed with the fluorescent lamp light can be controlled independently.
  • the color location of the light emitted by the light from the color location of the fluorescent lamp with a color temperature of 6000 Kelvin can be shifted to a color location with a reduced color temperature.
  • the standard color chart according to DIN 5033 is shown with the color loci FL, L1, L2 of the light emitted by the fluorescent lamp 2 (color locus FL) and by the red (color locus L1) and green (color locus L2) light-emitting diodes 41, 42, 51, 52.
  • the color locus L3 of a blue light emitting diode and a warm white light emitting diode (color locus L4) and the Planckian curve P is entered, which corresponds to the light emitted by a black radiator light at different annealing temperatures. That in the FIG. 6 The dashed rectangle delimits the white light color loci.
  • the color temperature of the light decreases along the Planckian curve P with increasing color coordinates x and y.
  • the color temperature is 6000 Kelvin and at the color locus L4 of the warm white light emitting diode or at the intersection of the connecting path of the color locus L1, L2, the color temperature is about 2300 Kelvin.
  • the brightness of the light generated by the red and green LEDs 41, 42, 51, 52 and the fluorescent lamp 2 is controlled so that the lamp emits white light with a color temperature in the range of 2700 Kelvin to 6000 Kelvin.
  • the brightness of the aforementioned light sources 2, 41, 42, 51, 52 is infinitely variable and accordingly, the color temperature in the aforementioned range can be varied continuously.
  • a similar effect can also be achieved by the combination of the fluorescent lamp 2 with warm white LEDs. That is, in place of the red and green light-emitting diode pairs 41, 42 and 51, 52 and warm white light-emitting light-emitting diodes in the lamp according to the FIGS. 1 to 3 be used.
  • light-emitting diodes producing warm-white light are light-emitting diodes based on blue light-emitting diodes which are equipped with a conversion agent in order to convert the blue light into white light of low color temperature (about 2300 Kelvin).
  • the color temperature of the light emitted by the light can be varied steplessly.
  • the color temperature and the brightness of the light emitted by the luminaire according to the first embodiment are automatically controlled with the aid of the color and light sensor 91, 92 as a function of the natural ambient light by an external central control device to which a plurality of luminaires according to the invention can be connected or connected are connected.
  • the central control device communicates via bidirectional control lines with the operating circuits of the lights according to the invention and optionally further, conventional lights that belong to the lighting system. Control commands are transmitted to the operating circuits via these control lines and operating states of the individual lights are queried.
  • the communication between the central control device and the operating circuits of the individual lights of the lighting system is carried out according to the DALI standard (DALI stands for Digitally Addressable Lighting Interface).
  • an automatic control of the lights according to the invention can be ensured as a function of the ambient light, without a significant color dispersion occurs in the light emitted by several lights according to the invention ,
  • FIGS. 4 and 5 a second embodiment of the luminaire according to the invention is shown schematically.
  • This second embodiment differs from the first embodiment only in that instead of the two-sided fluorescent lamp 2 according to the first embodiment, a single-capped fluorescent lamp 2 'is used and the lamp accordingly only at one end of the reflector 1 outstanding electrical connections 9' for the fluorescent lamp 2 'and the light-emitting diode arrangements 4, 5.
  • the first and second embodiments are the same. Therefore, in the FIGS. 1 to 3 and 4 to 5 for identical components the same reference numerals.
  • FIGS. 7 and 8 a third embodiment of a lamp according to the invention is shown schematically, which is intended primarily for use in private rooms and in the living area.
  • This lamp has a hood-like, in particular funnel-shaped reflector 100, a compact fluorescent lamp 200 as a first light source and a light-emitting diode array 300 as a second light source and a translucent, light-scattering cover 500 for the light exit opening of the reflector 100 and a cooling device 400 for cooling the light emitting diode array.
  • the reflector 100 is with its narrow opening at the base 201 of the compact fluorescent lamps 200, so that the electrical connections 203 of the fluorescent lamp and the lamp protrude from the reflector 100.
  • the reflector 100 consists for example of a plastic injection molded part.
  • the inner side 101 of the funnel-shaped, rotationally symmetrical reflector 100 is designed to be light-reflecting.
  • the inside 101 is preferably metallized, for example, provided with an aluminum layer.
  • the fluorescent lamp 200 is disposed in the axis of rotation of the reflector 100 so that the legs of the U-shaped portions 202 of the lamp vessel are parallel to the axis of rotation of the reflector 100.
  • the light emitting diode array 300 is disposed on the inner side 101 of the reflector 100, annularly around the lamp vessel portions 201 around. It consists of a combination of red, green and blue light-emitting diodes, each of which is present in the same number.
  • the phosphor coating of the fluorescent lamp 200 is configured so that the fluorescent lamp 200 in operation generates cold white light, that is, white light having a color temperature of about 4000 Kelvin.
  • the cooling device 400 is arranged on the outside of the reflector 100 at the level of the light-emitting diode arrangement 300.
  • the cooling device 400 is an annular aluminum body, on the surface of which the light-emitting diodes of the light-emitting diode arrangement 300 are mounted, so that the light-emitting diodes protrude through openings in the reflector 100 into the interior of the reflector 100.
  • the operation circuit for the fluorescent lamp 200 and the light-emitting diode array 300 is housed, for example, in the interior of the lamp cap 201.
  • the electrical connection between the light-emitting diode arrangement 300 and its operating circuit can be achieved, for example, via electrical lines which are embedded as conductor tracks in the plastic material of the reflector 100 or guided along the reflector 100 to the lamp base 201.
  • the reflector 100 can be fixed to the base 201 by means of a metallic latching or snap connection, which at the same time also establishes the electrical connection between the operating circuit accommodated in the base and the light-emitting diode arrangement 300.
  • the fluorescent lamp During operation, the fluorescent lamp generates white light having a color temperature of about 4000 Kelvin, which is homogeneously mixed by means of the reflector 100 and the light-scattering cover 500 with the light of the LEDs 300, so that the light light with a color temperature in the range of about. 2700 Kelvin to 4000 Kelvin can emit.
  • a further switch is provided on the lamp next to the switch-on with which a plurality, for example two or three, predetermined different color temperatures for the white light emitted by the lamp can be selected.
  • a color and brightness sensor 600 may be mounted, which allows an automatic and continuous color and brightness control of the white light emitted by the lamp in dependence on the ambient light, as has already been described in the previous embodiments.
  • a manually operated controller can be provided be independently of each other allows a continuous manual brightness control of the red, green and blue LEDs to the color locus and the color of the light emitted by the light in the light in the FIG. 6 through the points L1, L2 and L3 limited triangle, even outside the Planckian curve P to vary.
  • FIG. 9 is schematically illustrated a fourth embodiment of a lamp according to the invention.
  • This fourth embodiment is largely identical to the first embodiment. Therefore, in the FIGS. 1 and 3 for identical components the same reference numerals.
  • the fourth embodiment differs from the first embodiment only by the reflector 1 'and the cooling device 6' for the LEDs 41, 42, 51, 52 of the LED assemblies 4, 5.
  • the reflector 1 ' has the same shape as the reflector 1 according to the first embodiment.
  • the reflector 1 ' consists of a plastic extruded profile and not of aluminum sheet as the reflector 1 of the first embodiment.
  • the inside of the trough-shaped reflector 1 ' is formed by an aluminum layer 10', which has a high degree of light reflection.
  • the cooling device 6 ' consists of a metal sheet, for example an aluminum sheet, which extends over the entire length of the lamp and the channel-shaped reflector 1'.
  • the angled edge portions 11 ', 12' of the channel-shaped reflector 1 ' are provided with openings through which the light-emitting diodes 41, 42 and 51, 52 protrude so that their light is emitted in the direction of the inner side 10' of the reflector 1 '.
  • the cooling plate 6 surrounds the reflector 1' like a hood, so that a gap 93 is formed by the reflector 1 'and the cooling plate 6', in which preferably an operating device or an operating circuit for the fluorescent lamp 2 and the light-emitting diodes 41, 42, 51, 52 of the light emitting diode assemblies 4, 5 is arranged.
  • the cooling plate 6 ' is located on the outside of the angled, bent back edge portions 11' 12 'of the reflector 1' and is attached thereto.
  • the light-emitting diodes 41, 42, 51, 52 are mounted on the surface 61 'of the cooling plate 6' facing the reflector 1 ', so that the light-emitting diodes 41, 42 of the first light-emitting diode arrangement 4 project through apertures in the first angled reflector section 11' and the light-emitting diodes 51, 52 of the second Light emitting diode array 5 through openings in the second angled, bent back reflector portion 12 'protrude.
  • the plastic material of the reflector 1 ' acts here as a thermal insulation layer between the cooling plate 6' and the inner side 10 'and the interior of the reflector 1'.
  • the Lichtaustiittsötechnisch the reflector 1 ' which is bounded by the two angled reflector sections 11', 12 'and the cooling plate 6' is provided with a translucent, light-scattering cover 3.
  • the fourth embodiment is consistent with the first embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Claims (27)

  1. Lampe comprenant une première source lumineuse produisant une lumière blanche qui comprend au moins une lampe fluorescente (2; 2'; 200) ou une lampe à incandescence, ainsi qu'une seconde source lumineuse qui comprend au moins un dispositif de diodes luminescentes (4, 5; 300), et comprenant un réflecteur (1; 1'; 100) pour la lumière émise par les sources lumineuses, un dispositif de refroidissement (6, 7; 6'; 400) étant prévu pour l'au moins un dispositif de diodes luminescentes (4, 5; 300), lequel dispositif de refroidissement est couplé thermiquement au au moins un dispositif de diodes luminescentes (4, 5; 300) et est situé sur le réflecteur (1; 1'; 100), l'au moins un dispositif de diodes luminescentes (4, 5; 300) étant monté sur une surface (61, 61') du dispositif de refroidissement (6, 7; 6'; 400) et la lampe comprenant un moyen dispersif transparent (3; 500) qui est situé sur le trajet des rayons de la lumière émise par la lampe,
    caractérisée en ce que
    la surface (61, 61') du dispositif de refroidissement (6, 7; 6'; 400) pourvue du au moins un dispositif de diodes luminescentes (4, 5; 300) est tournée vers un côté extérieur du réflecteur (1; 1'; 100) qui n'est pas tourné vers les sources lumineuses et l'au moins un dispositif de diodes luminescentes (4, 5; 300) passe à travers des ouvertures dans le réflecteur (1; 1'; 100).
  2. Lampe selon la revendication 1, le réflecteur (1; 1'; 100) possédant un côté intérieur (10; 10'; 101) tourné vers les sources lumineuses et exécuté pour réfléchir la lumière et le dispositif de refroidissement (6, 7; 6'; 400) étant situé sur le côté extérieur du réflecteur (1; 1'; 100).
  3. Lampe selon la revendication 1 ou 2, le dispositif de refroidissement étant fixé sur le réflecteur (1; 1'; 100).
  4. Lampe selon une ou plusieurs des revendications 1 à 3, le dispositif de refroidissement étant situé sur le bord d'une ouverture de sortie de la lumière du réflecteur.
  5. Lampe selon une ou plusieurs des revendications 1 à 4, l'au moins un dispositif de diodes luminescentes (4, 5; 300) étant situé sur le côté intérieur (10; 10'; 101) du réflecteur (1; 1'; 100).
  6. Lampe selon la revendication 1, une couche d'isolation thermique (8) étant située entre le côté extérieur du réflecteur (1; 100) et la surface (61) du dispositif de refroidissement (6, 7; 41) pourvue du au moins un dispositif de diodes luminescentes (4, 5; 300).
  7. Lampe selon une ou plusieurs des revendications 1 à 6, le dispositif de refroidissement (6, 7) comprenant des ailettes de refroidissement (60, 70) qui sont disposées et orientées de manière à se trouver à l'extérieur du trajet des rayons de la lumière émise par la lampe.
  8. Lampe selon une ou plusieurs des revendications 1 à 6, le dispositif de refroidissement étant exécuté en tant que tôle de refroidissement (6') qui est disposée et formée de manière à se trouver à l'extérieur du trajet des rayons de la lumière émise par la lampe.
  9. Lampe selon la revendication 8, la tôle de refroidissement (6') et le réflecteur (1') formant un espace creux ou espace intermédiaire (93).
  10. Lampe selon une ou plusieurs des revendications 1 à 9, l'au moins un dispositif de diodes luminescentes (4, 5) comprenant une combinaison de diodes luminescentes à lumière rouge ou orange (41, 51) et de diodes luminescentes à lumière verte (42, 52) et la première source lumineuse étant formée d'une ou de plusieurs lampes fluorescentes (2, 2').
  11. Lampe selon une ou plusieurs des revendications 1 à 9, l'au moins un dispositif de diodes luminescentes comprenant des diodes luminescentes qui émettent de la lumière blanche chaude pendant son fonctionnement et la première source lumineuse étant formée d'une ou de plusieurs lampes fluorescentes.
  12. Lampe selon la revendication 10 ou 11, l'au moins une lampe fluorescente (2, 2') étant exécutée de manière à émettre une lumière similaire à la lumière diurne pendant son fonctionnement.
  13. Lampe selon une ou plusieurs des revendications 1 à 9, l'au moins un dispositif de diodes luminescentes (300) comprenant une combinaison de diodes luminescentes à lumière rouge, verte et bleue.
  14. Lampe selon la revendication 13, la première source lumineuse étant formée d'une ou de plusieurs lampes fluorescentes (2, 2', 200).
  15. Lampe selon une ou plusieurs des revendications 1 à 14, le moyen dispersif transparent étant exécuté en tant que plaque de couverture (3; 500) pour une ouverture de sortie de la lumière du réflecteur (1; 1'; 100).
  16. Lampe selon une ou plusieurs des revendications 1 à 15, un détecteur de couleur (91) servant à commander la température de couleur ou la couleur de la lumière émise par la lampe étant couplé à la lampe.
  17. Lampe selon une ou plusieurs des revendications 1 à 16, un détecteur de luminosité (92) servant à commander la luminosité de la lumière émise par la lampe étant couplé à la lampe.
  18. Lampe selon une ou plusieurs des revendications 1 à 17, le réflecteur (1, 1') étant exécuté à la manière d'une gouttière, la première source lumineuse (2, 2') étant alignée parallèlement à l'étendue longitudinale du réflecteur similaire à une gouttière (1, 1') et la seconde source lumineuse étant formée par deux dispositifs de diodes luminescentes (4, 5) qui sont situés sur les deux côtés de la première source lumineuse (2, 2') et s'étendent à chaque fois parallèlement à l'étendue longitudinale du réflecteur (1, 1').
  19. Lampe selon la revendication 18, les dispositifs de refroidissement (6, 7) des deux dispositifs de diodes luminescentes (4, 5) étant situés à chaque fois le long d'un bord de réflecteur s'étendant parallèlement à l'étendue longitudinale du réflecteur similaire à une gouttière (1, 1').
  20. Lampe selon la revendication 18 ou 19, les deux dispositifs de diodes luminescentes (4, 5) étant situés à chaque fois le long d'une portion de réflecteur (11, 12, 11', 12') repliée en direction du fond de la gouttière, sur le côté intérieur, de manière à ce que la lumière émise par les dispositifs de diodes luminescentes (4, 5) soit réfléchie au moins une fois sur le côté intérieur (10; 10') du réflecteur (1; 1') exécuté de manière à réfléchir la lumière avant de quitter la lampe.
  21. Lampe selon une ou plusieurs des revendications 18 à 20, les dispositifs de refroidissement (6, 7) des deux dispositifs de diodes luminescentes (4, 5) s'étendant le long des côtés extérieurs des portions de réflecteur repliées (11, 12; 11', 12').
  22. Lampe selon une ou plusieurs des revendications 18 à 21, l'ouverture de sortie de la lumière du réflecteur (1; 1') étant située entre les portions de réflecteur repliées (11, 12; 11', 12').
  23. Lampe selon une ou plusieurs des revendications 1 à 17, le réflecteur (100) étant exécuté de manière similaire à un chapeau présentant globalement une symétrie de rotation et la première source lumineuse (200) étant située le long de l'axe de rotation du réflecteur (100) et la seconde source lumineuse comprenant au moins un dispositif de diodes luminescentes en forme d'anneau ou de segment d'anneau (300) qui est situé sur le côté intérieur (101) du réflecteur (100) et de manière coaxiale à son axe de rotation.
  24. Lampe selon la revendication 23, le dispositif de refroidissement (400) pour le au moins un dispositif de diodes luminescentes en forme d'anneau ou de segment d'anneau (300) étant situé sur le côté extérieur du réflecteur (100), à la hauteur du dispositif de diodes luminescentes (300).
  25. Lampe selon une des revendications 23 ou 24, la première source lumineuse étant une lampe fluorescente à culot simple (200) dont l'axe de l'étendue longitudinale est orienté parallèlement à l'axe de rotation du réflecteur (100).
  26. Lampe selon la revendication 25, la lampe fluorescente à culot simple étant exécutée en tant que lampe fluorescente compacte (200) pourvue d'un dispositif de fonctionnement situé dans le culot.
  27. Lampe selon une des revendications 25 ou 26, le réflecteur (100) étant fixé sur le culot (201) de la lampe fluorescente (200).
EP07788239A 2006-08-09 2007-08-06 Lampe Not-in-force EP2049835B1 (fr)

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DE102006037376A DE102006037376A1 (de) 2006-08-09 2006-08-09 Leuchte
PCT/EP2007/058118 WO2008017652A1 (fr) 2006-08-09 2007-08-06 Lampe

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EP2049835A1 EP2049835A1 (fr) 2009-04-22
EP2049835B1 true EP2049835B1 (fr) 2011-06-29

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JP (1) JP4861478B2 (fr)
CN (1) CN101501394B (fr)
AT (1) ATE514901T1 (fr)
DE (1) DE102006037376A1 (fr)
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WO (1) WO2008017652A1 (fr)

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HK1132787A1 (en) 2010-03-05
DE102006037376A1 (de) 2008-02-14
CN101501394B (zh) 2011-03-30
ATE514901T1 (de) 2011-07-15
WO2008017652A1 (fr) 2008-02-14
US20090243455A1 (en) 2009-10-01
CN101501394A (zh) 2009-08-05
JP4861478B2 (ja) 2012-01-25
US7874697B2 (en) 2011-01-25
EP2049835A1 (fr) 2009-04-22
JP2010500706A (ja) 2010-01-07

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