EP2372229B1 - Réflecteur d'éclairage descendant doté d'une source d'éclairage supplémentaire - Google Patents

Réflecteur d'éclairage descendant doté d'une source d'éclairage supplémentaire Download PDF

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Publication number
EP2372229B1
EP2372229B1 EP11159317.4A EP11159317A EP2372229B1 EP 2372229 B1 EP2372229 B1 EP 2372229B1 EP 11159317 A EP11159317 A EP 11159317A EP 2372229 B1 EP2372229 B1 EP 2372229B1
Authority
EP
European Patent Office
Prior art keywords
reflector
light
light source
cover
additional
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
EP11159317.4A
Other languages
German (de)
English (en)
Other versions
EP2372229A1 (fr
Inventor
Ludwig Niedermaier
Gottfried Müller
Peter Prodell
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 SBT GmbH
Original Assignee
Siteco Beleuchtungstechnik 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 Siteco Beleuchtungstechnik GmbH filed Critical Siteco Beleuchtungstechnik GmbH
Publication of EP2372229A1 publication Critical patent/EP2372229A1/fr
Application granted granted Critical
Publication of EP2372229B1 publication Critical patent/EP2372229B1/fr
Not-in-force legal-status Critical Current
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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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a luminaire, in particular a downlight, with an approximately dome-shaped reflector.
  • Downlights are very familiar for the illumination of interiors, in particular as recessed luminaires in a suspended ceiling. They are used in particular for uniform and largely glare-free lighting of interiors. There are known reflectors for narrow-beam, wide-beam, symmetric or asymmetric light distributions. In the prior art, it is also common to use a different downlight, in particular with differently shaped reflectors for each of these applications.
  • a lamp having a light emitting filament and one or more LEDs comprises a glass reflector, in which a tungsten filament located in a glass capsule is arranged.
  • the reflector further has an outlet opening into which a glass lens is received. Opposite the lens is an array of LEDs.
  • the reflector has transparent portions in the region of the LED to allow passage of the light emitted by the LED.
  • Object of the present invention is to provide lights, especially downlights, of the type mentioned above, which have an increased functionality.
  • the object is achieved by a luminaire, in particular a downlight according to claim 1.
  • the upper reflector section has an additional light source, in particular one or more LEDs, which are also to be understood as OLEDs.
  • the additional light source according to one embodiment of the invention has a lower power than the main light source. With the additional light source, different lighting effects can be achieved. In particular, LEDs in addition to the main light source, such as a Kompaktstofflampe, produce decorative lighting effects.
  • the additional light source for example, at night when the main light source is turned off to produce a glowing light, optionally in a contrasted to the main lighting color. With sufficient power of the additional light source, this can also be used as an emergency light module when the main light source fails.
  • the additional light source in addition to the main light source is operated, for example, to change the light color of the lamp.
  • white and / or colored LEDs can be used as an additional light source for decorative purposes or signal purposes.
  • the additional light source is also electrically switchable independently of the main light source.
  • the additional light source comprises a plurality of individual light sources, such as a plurality of LEDs, these can also be controlled individually or in groups, for example to produce different light colors.
  • the additional light source is integrated in the upper reflector section so that it emits light at least in part directly to the reflector inner side.
  • the additional light source can be arranged on the surface of the reflector section facing the reflector outer side and emit the light through one or more holes in the reflector section to the reflector inner side.
  • the auxiliary light source may also be in one or more holes in the reflector section, e.g. to the inside of the reflector protruding, be arranged. The size of the openings may be selected depending on the temperature resistance of the particular reflector section and the temperature reached by the auxiliary illumination during operation.
  • the additional light source on the surface of the reflector section facing the reflector exterior can also emit light at least partially indirectly into the reflector interior.
  • the additional light source guide light inwards through a gap in the cover or through a gap in the reflector.
  • the arrangement of the additional lighting in the form of LEDs on the outside of the reflector has the advantage that the LEDs can be cooled more easily by means of a heat sink.
  • the additional light source is applied to a thermally conductive body, for example on a ring or a ring segment made of metal, wherein the heat-conducting body is fixed to the reflector portion, which can also be designed as a removable cover, on the surface facing the reflector outside.
  • the Additional light source a light guide body, in particular a segment-ring-shaped light guide, wherein in the light guide of one or more sides, in particular of narrow end faces, light from one or more light sources of the additional light source is coupled.
  • light-conducting bodies which decouple light over a larger area has the advantage, in particular for the additional light source, that light can be emitted uniformly along a gap to be illuminated between the circumference of the upper reflector section and the lateral reflector walls.
  • one or more light sources which couple light into a light guide body can be arranged at a position which is easier to cool.
  • the upper reflector portion is designed as a lid, which is mountable to the reflector and at least partially closes an opening of the reflector, and wherein the lid of the reflector is removable.
  • the cover of the reflector which closes the opening opposite the light exit surface above the main illuminant, allows a variety of technical functions that are desirable in a downlight for different applications to integrate. Since the lid of the reflector is removable, different covers can be used for the same downlight. In particular, the different covers can support different functions of downlights. Thus, it is possible to allow through the cover a cooling air flow for lamps of different power. Furthermore, numerous additional functions, such as additional lighting means, can be integrated in the lid.
  • the main illuminant may also be the only light source in the luminaire according to one embodiment.
  • the lid is mountable and detachable from the inside of the reflector.
  • the reflectors are no longer accessible from the outside in the assembled state of the lamp. Therefore, it is advantageous to be able to install and remove the cover from the inside of the reflector, which is easily accessible through the light exit surface.
  • the reflector and / or the lid on locking means which can be latched to the respective other element to mount the lid.
  • Locking connections are particularly easy to install and therefore easy to handle. Furthermore, they are particularly easy to integrate on the lid, for which the material plastic is preferred.
  • an air gap is formed between the edge of the lid and an edge of the opening.
  • the air gap which is due to the position of the lid above the bulb, allows an air convection, whereby the main illuminant is cooled. Since different cooling capacities are required for different illuminants, the cooling power for the illuminant can be suitably selected by a selection of covers which form differently sized gaps with respect to the reflector.
  • the air gap is over the entire circumference of the lid or over at least 90% of the circumference of the lid, in particular around the circumference of the lid, except for any fastening means, e.g. Latching means, formed.
  • the cover is designed to be reflective on the surface facing the inside of the reflector, and preferably the surface of the cover facing the inside of the reflector comprises 10% of the reflective inner surface of the reflector.
  • This embodiment makes it possible to provide the lid with different reflective properties, such as mirror-finished or matt reflective.
  • the light distribution generated by the downlight can thus be determined by selecting a suitable Affect lids.
  • the lid may have on the main illuminant side facing different surface shapes, such as V-shaped depressions or elevations, waveforms or a plane plane.
  • the lamp is designed as a downlight. It has a dome-shaped reflector 2, which defines a circular light exit surface 4, which points in the normal installation position of the lamp down.
  • the luminaire is designed as a ceiling luminaire, wherein in the figures for simplicity, the fasteners, which are used for ceiling installation, are not shown.
  • the projection 8 comprises guide devices in which a holder holder can be inserted from the inside or from the outside in order to arrange one or more main illuminants radially offset to the optical axis or parallel to a radius of the reflector in the reflector.
  • a holder holder can be inserted from the inside or from the outside in order to arrange one or more main illuminants radially offset to the optical axis or parallel to a radius of the reflector in the reflector.
  • the frame holder and the main illuminants are not shown.
  • a detailed description of a socket holder which can be used in the embodiment described herein is in the German patent application entitled "Luminaire with led socket holder" of the same applicant DE 10 2010 013 655 described.
  • a circular opening is provided above the position of the main illuminant, on the light exit surface 4 opposite side of the reflector 2, a circular opening is provided.
  • the opening is closed by the inside of the reflector with a cover 10.
  • cover 10 serves to accommodate an additional light source, which will be described below.
  • the cover 10 has on one side two guide pins 11 which are inserted into holes of the reflector, and on the other side, which lies in the installed state of the lid on the projection 8 of the reflector 2 opposite side, an upwardly pointing approximately U shaped spring tongue 12, which is inserted into a section of the reflector and thus locked.
  • the cover can be mounted from the inside of the reflector with the spring tongue 12 in the reflector and can be dismantled again, because the downlight, after it is installed in the false ceiling, is only accessible through the light exit surface 4 ,
  • a circumferential gap 14 is formed around the entire circumference of the lid 10 with the exception of the spring tongue 12.
  • the gap 14 allows the operation of the lamp an air convection, whereby the heated at the main illuminant air can leave the light upwards.
  • the air convection is used to cool the bulb.
  • different covers are provided which define different sized gaps 14.
  • the lids can be selected to match the necessary cooling power of the main illuminant. It is especially in compact fluorescent lamps, which are preferably used as the main illuminant to note that these bulbs have an optimum operating temperature at which the efficiency of the bulb is maximum. It therefore does not make sense to provide a large air gap 14 even for low-power light sources which do not require high cooling power. In particularly low-power lights only a very small air gap 14 is provided.
  • the lid 10 is designed to be reflective on the surface facing the reflector interior.
  • the lid 10 is made of a plastic, wherein the spring tongue 12 may be made integral with the lid.
  • the plastic On the surface facing the interior of the reflector, the plastic may have a matt reflective or mirror-finished finish.
  • the lid is used in the luminaire according to the invention for the reception of additional illuminants, which emits light in addition to the main illuminant with a lower power.
  • additional illuminants which emits light in addition to the main illuminant with a lower power.
  • the cover 10 ' has a plurality of holes along its circumference, in which additional illuminants 16 in the form of a plurality of LEDs are arranged.
  • the LEDs 16 are switchable independently of the main illuminant. For example, they can be turned on when the main illuminant is off to provide low night lighting.
  • the LEDs can be white or colored. With sufficiently strong LEDs 16, these can also serve as an emergency light module in the event of failure of the main light source.
  • the LEDs 16 are on the outwardly facing side of the lid 10 'mounted on a board (not shown in the figures), on which is also the electrical contact for the LEDs. Further, a heat sink may be connected to the board to cool the LEDs during operation.
  • cover 10 comprises, on the surface facing the outside of the reflector, a plurality of holding elements 18 in the form of U-shaped plastic elements, which are formed integrally with the cover.
  • the holding elements 18 serve to receive a flexible LED strip, the LEDs pointing in the direction of the gap 14 between the cover 10 "and the reflector 2. The light from the LEDs falls onto the reflector and is deflected downwards into the reflector above, no light or only scattered light is emitted, because the gap is covered by a peripheral edge 20 on the reflector 2.
  • the LED strip may also be mounted on a metal ring, in particular on an aluminum ring having inwardly facing ribs.
  • the aluminum ring is used to cool the LEDs.
  • the additional light source on the lid can be varied in various ways.
  • the additional lighting can also have a light guide, in particular a circular segment light guide, into which one or more LEDs light is coupled into end faces and is emitted again via the peripheral surface.
  • a light guide in particular a circular segment light guide, into which one or more LEDs light is coupled into end faces and is emitted again via the peripheral surface.
  • Such light guide segments may be arranged on the upwardly facing side of the lid.
  • such light guides could also be arranged on the reflector inner facing surface of the lid.
  • the invention has been explained above in connection with preferred embodiments which have a lid in the upper reflector section. It is understood, however, that the invention also relates to dome-shaped reflectors that are not removable Lid have, but at this point a fixed reflector section. This can also serve as a support surface for the additional light source, as previously described in connection with the lid.
  • the upper reflector portion may also have a circumferential gap, which is carried out as well as the gap between the lid and the peripheral edge of the opening in the reflector.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (14)

  1. Luminaire, plus particulièrement un downlight, avec un réflecteur (2) en forme de coupole, qui entoure une surface de sortie de lumière (4) avec une paroi de réflecteur latérale, au moins un moyen d'éclairage principal s'étendant dans le réflecteur (2) et le réflecteur (2) comprenant, au niveau d'une portion du réflecteur opposée à la surface de sortie de la lumière (4), au-dessus du moyen d'éclairage principal, au moins une source de lumière supplémentaire, plus particulièrement une ou plusieurs LED, caractérisé en ce que la source de lumière supplémentaire (16) est montée sur un corps conducteur de chaleur, le corps conducteur de chaleur étant fixé à la portion du réflecteur sur la surface orientée vers le côté externe du réflecteur.
  2. Luminaire selon la revendication 1, la source de lumière supplémentaire (16) présentant une puissance plus faible que celle de l'au moins une source de lumière principale.
  3. Luminaire selon la revendication 1 ou 2, la source de lumière supplémentaire (16) étant intégrée dans la portion du réflecteur, de façon à ce qu'elle émette de la lumière au moins partiellement directement vers le côté interne du réflecteur.
  4. Luminaire selon l'une des revendications précédentes, la source de lumière supplémentaire (16) étant disposée sur la surface de la portion du réflecteur orientée vers le côté externe du réflecteur et émettant la lumière à travers un trou ou de plusieurs trous dans la portion du réflecteur vers le côté interne du réflecteur.
  5. Luminaire selon l'une des revendications précédentes, la source de lumière supplémentaire étant disposée sur la surface de la portion du réflecteur orientée vers le côté interne du réflecteur et la lumière de la source de lumière supplémentaire étant déviée au moins partiellement vers l'espace interne du réflecteur, plus particulièrement à travers une fente circulaire, dans le réflecteur (2).
  6. Luminaire selon l'une des revendications précédentes, le corps conducteur de chaleur étant un anneau ou un segment annulaire en métal.
  7. Luminaire selon l'une des revendications précédentes, la source de lumière supplémentaire comprenant un corps de guidage de lumière, plus particulièrement un corps de guidage de lumière en forme de segment annulaire, dans lequel, d'un ou de plusieurs côtés, la lumière est introduite par une ou plusieurs sources de lumière de la source de lumière supplémentaire.
  8. Luminaire selon l'une des revendications précédentes, la source de lumière principale et la source de lumière supplémentaire pouvant être pilotées électriquement de manière séparée.
  9. Luminaire selon l'une des revendications précédentes, la portion du réflecteur au-dessus du moyen d'éclairage principal étant conçu comme un couvercle (10, 10', 10"), qui peut être monté sur le réflecteur, et fermant au moins partiellement une ouverture du réflecteur et le couvercle (10, 10', 10") pouvant être retiré du réflecteur.
  10. Luminaire selon la revendication 9, le couvercle (10, 10', 10") pouvant être monté et retiré par le côté interne du réflecteur (2).
  11. Luminaire selon la revendication 9 ou 10, le réflecteur (2) et/ou le couvercle (10, 10', 10") comprenant des moyens d'encliquetage, qui peuvent être encliquetés sur l'autre élément, afin de monter le couvercle (10, 10', 10").
  12. Luminaire selon l'une des revendications 9 à 11, un interstice étant formé entre un bord du couvercle (10, 10', 10") et un bord de l'ouverture du réflecteur (2).
  13. Luminaire selon la revendication 12, l'interstice étant formé sur toute sa circonférence ou sur au moins 90 % de la circonférence du couvercle (10, 10', 10").
  14. Luminaire selon l'une des revendications 9 à 13, le couvercle (10, 10', 10") étant conçu de manière réfléchissante sur la surface orientée vers le côté interne du réflecteur et comprenant de préférence au moins 10 % de la surface interne réfléchissante du réflecteur (2).
EP11159317.4A 2010-04-01 2011-03-23 Réflecteur d'éclairage descendant doté d'une source d'éclairage supplémentaire Not-in-force EP2372229B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010013687A DE102010013687A1 (de) 2010-04-01 2010-04-01 Downlightreflektor mit Zusatzlichtquelle

Publications (2)

Publication Number Publication Date
EP2372229A1 EP2372229A1 (fr) 2011-10-05
EP2372229B1 true EP2372229B1 (fr) 2017-05-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11159317.4A Not-in-force EP2372229B1 (fr) 2010-04-01 2011-03-23 Réflecteur d'éclairage descendant doté d'une source d'éclairage supplémentaire

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EP (1) EP2372229B1 (fr)
DE (1) DE102010013687A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018204801A1 (fr) * 2017-05-05 2018-11-08 Hubbell Incorporated Luminaire à éclairage dirigé vers le haut

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9429285B2 (en) 2012-12-11 2016-08-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Downlight auxiliary ring

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Publication number Priority date Publication date Assignee Title
TWM247778U (en) * 2003-04-29 2004-10-21 Taiwan Bull Motor Parts Co Ltd Light for automobile
DE102004003820A1 (de) * 2004-01-26 2005-08-11 Durlum-Leuchten Gmbh Lichttechnische Spezialfabrik Multifunktionsleuchte für Farbe und Intensität
KR20060041977A (ko) * 2004-03-11 2006-05-12 석찬복 측방 및 후방 조명기능을 갖는 휴대용 전등
NL1029999C2 (nl) * 2005-09-21 2007-03-27 Imt B V Verlichtingsarmatuur.
US20070076426A1 (en) * 2005-10-03 2007-04-05 Kling Michael R Lamp with two light sources
US20070236946A1 (en) * 2006-03-30 2007-10-11 John Petrakis Lighting Assembly Having An Integrated Solid-State Light Emitting Device
US7614767B2 (en) * 2006-06-09 2009-11-10 Abl Ip Holding Llc Networked architectural lighting with customizable color accents
DE202006016222U1 (de) * 2006-10-19 2007-01-04 Wila Group Ltd. Leuchte
CN201042089Y (zh) * 2007-06-04 2008-03-26 吴汉明 双光源互补路灯

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018204801A1 (fr) * 2017-05-05 2018-11-08 Hubbell Incorporated Luminaire à éclairage dirigé vers le haut
US10697617B2 (en) 2017-05-05 2020-06-30 Hubbell Incorporated Luminaire uplight

Also Published As

Publication number Publication date
EP2372229A1 (fr) 2011-10-05
DE102010013687A1 (de) 2011-10-06

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