EP2243999A1 - Luminaire à DELs pour effet d'éclairage mural - Google Patents

Luminaire à DELs pour effet d'éclairage mural Download PDF

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Publication number
EP2243999A1
EP2243999A1 EP10160629A EP10160629A EP2243999A1 EP 2243999 A1 EP2243999 A1 EP 2243999A1 EP 10160629 A EP10160629 A EP 10160629A EP 10160629 A EP10160629 A EP 10160629A EP 2243999 A1 EP2243999 A1 EP 2243999A1
Authority
EP
European Patent Office
Prior art keywords
leds
reflector
light
channel
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10160629A
Other languages
German (de)
English (en)
Other versions
EP2243999B1 (fr
Inventor
Roberto Franzosi
Carlotta De Bevilacqua
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.)
Artemide SpA
Original Assignee
Artemide SpA
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 Artemide SpA filed Critical Artemide SpA
Publication of EP2243999A1 publication Critical patent/EP2243999A1/fr
Application granted granted Critical
Publication of EP2243999B1 publication Critical patent/EP2243999B1/fr
Active 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
    • 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
    • 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
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F21V23/009—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being inside the housing of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/023—Power supplies in a casing
    • 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
    • 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
    • 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 present invention relates to a wall-washing-effect LED lighting device.
  • Various lighting systems are known designed to give a so-called wall-washing effect, i.e. to substantially evenly illuminate a vertical surface (normally a room wall or a building façade).
  • a wall-washing-effect LED lighting device as defined basically in the accompanying Claim 1, and in more detail in the dependent Claims.
  • the device according to the invention is easy to manufacture and install, fully efficient, and highly versatile, in that it can be made to compact size, can be installed in various configurations (e.g. recessed in a ceiling or floor, or even wall-mounted), and can be equipped with various types of additional light sources.
  • the device is specially designed to conceal the LEDs from direct view, at least in normal observation conditions, and so eliminates the annoying glare effect typical of strong spot light sources, such as LEDs.
  • a wall-washing-effect LED lighting device 1 comprises a supporting bar 2 elongated longitudinally along an axis A; and a plurality of LEDs 3 fitted to bar 2 and associated with a reflector 4.
  • Device 1 is designed to be installed preferably (though not necessarily) close to a wall W (shown schematically in Figure 3 ) to be illuminated substantially evenly (wall-washing effect), e.g. an interior or exterior building wall, is recessed, for example, in a floor or ceiling adjacent to wall W, and is substantially parallel to wall W.
  • wall-washing effect e.g. an interior or exterior building wall
  • Bar 2 is defined, for example (though not necessarily), by a metal, e.g. aluminium, section.
  • bar 2 has an H-shaped cross section, and comprises two substantially parallel flanges 6 parallel to axis A; and a central partition 7 substantially perpendicular to flanges 6 and also parallel to axis A.
  • Bar 2 comprises two opposite longitudinal compartments 8, 9 bounded laterally by flanges 6 and separated by partition 7.
  • Compartments 8, 9 define respective opposite, parallel, substantially U-shaped longitudinal channels 11, 12, and more specifically : a main longitudinal channel 11 housing LEDs 3 and reflector 4; and an auxiliary longitudinal channel 12 housing components 13 for powering and controlling LEDs 3, and/or additional light sources 14 (e.g. one or more fluorescent sources) and relative power and/or control components 15.
  • additional light sources 14 e.g. one or more fluorescent sources
  • Channel 11 is bounded by two opposite lateral walls 17, 18 defined by respective portions of flanges 6, and by a back wall 19 defined by partition 7, and has a light-emitting opening 20 opposite back wall 19 (i.e. partition 7) and bounded by respective end edges 22 of flanges 6. More specifically, opening 20 is bounded by a first longitudinal edge 22a on the same side of channel 11 as LEDs 3 (i.e. LEDs 3 and edge 22a are located on the same side of channel 11, i.e. the same side of a longitudinal centre plane P of channel 11); and by a second longitudinal edge 22b opposite first edge 22a (i.e. LEDs 3 and edge 22b are located on opposite sides of channel 11, i.e. on opposite sides of the longitudinal centre plane P of channel 11).
  • lateral walls 17 and 18 comprise a distal lateral wall 17 and a proximal lateral wall 18, which in use, i.e. when device 1 is installed, are located further from and closer to wall W respectively; and light-emitting opening 20 is located, in use, at the top or bottom of bar 2.
  • LEDs 3 are fitted to an inner surface 23 of lateral wall 17, alongside light-emitting opening 20.
  • lateral wall 17 is located further from wall W, which means surface 23 is positioned facing wall W.
  • LEDs 3 are spaced apart, parallel to axis A, on surface 23 of lateral wall 17, and project inwards of channel 11, towards the opposite lateral wall 18.
  • Surface 23, to which LEDs 3 are fitted, is substantially perpendicular to light-emitting opening 20, and LEDs 3 project perpendicularly from surface 23 towards lateral wall 18 and reflector 4, which is also housed in channel 11, is interposed between lateral walls 17 and 18, and is positioned facing LEDs 3.
  • Reflector 4 is asymmetrical with respect to LEDs 3. More specifically, reflector 4 is designed and located to reflect the light from LEDs 3 through light-emitting opening 20 with a light distribution which is asymmetrical with respect to a centre plane P of light-emitting opening 20 (i.e. a plane through axis A, substantially perpendicular to opening 20, and dividing opening 20 longitudinally in half), and which extends horizontally beyond a vertical plane parallel to centre plane P and through (containing) the longitudinal edge 22b opposite LEDs 3.
  • a centre plane P of light-emitting opening 20 i.e. a plane through axis A, substantially perpendicular to opening 20, and dividing opening 20 longitudinally in half
  • reflector 4 is designed to reflect the light from LEDs 3 with a light distribution that is offset laterally towards the side of bar 2 opposite the lateral wall 17 fitted with LEDs 3, i.e. towards the wall to be illuminated.
  • reflector 4 is designed to reflect at least part of the light from LEDs 3 through opening 20 and obliquely beyond the longitudinal edge 22b opposite LEDs 3, i.e. obliquely beyond the proximal lateral wall 18 of channel 11 (closer to wall W) opposite the distal lateral wall 17 (further from wall W) fitted with LEDs 3.
  • reflector 4 is a substantially plane reflector sloping with respect to lateral wall 17 fitted with LEDs 3, and is therefore positioned on a slant inside channel 11.
  • a reflector 4 of different design may, however, be used, such as a parabolic or generically curved or complex-surface reflector.
  • reflector 4 extends obliquely from lateral wall 17 fitted with LEDs 3, to the opposite lateral wall 18, and from the bottom of channel 11 (i.e. a position close to back wall 19) to light-emitting opening 20, and preferably comprises a single reflecting, e.g. metal, sheet 24 housed in channel 11 and facing all of LEDs 3.
  • Device 1 also comprises an optional diffuser screen 26 (only shown in Figure 3 ) located substantially in front of reflector 4 and/or closing light-emitting opening 20 between edges 22, to diffuse the light reflected by reflector 4. Accordingly, diffuser screen 26 is made of material which diffuses light passing through it.
  • device 1 is installed alongside and substantially parallel to wall W to be illuminated, e.g. recessed in a floor or ceiling, or mounted to the actual wall to be illuminated.
  • LEDs 3 The light emitted by LEDs 3 is reflected by reflector 4 onto wall W with the desired, i.e. wall-washing, distribution; and user glare is prevented by LEDs 3 being concealed inside channel 11, out of direct view, at least in normal observation conditions.
  • Optional diffuser 26 serves to further improve the overall lighting effect of device 1, and more specifically to eliminate the light-shade boundary line projected onto wall W.
  • device 1 The design and compactness of device 1 enable it to be installed in various configurations (e.g. recessed in a ceiling or wall, or wall-mounted); and additional light sources housed in auxiliary channel 12 provide for additional lighting effects, thus enhancing the versatility of device 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP10160629.1A 2009-04-22 2010-04-21 Luminaire à DELs pour effet d'éclairage mural Active EP2243999B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2009A000677A IT1393699B1 (it) 2009-04-22 2009-04-22 Dispositivo di illuminazione a led con effetto wall-washing

Publications (2)

Publication Number Publication Date
EP2243999A1 true EP2243999A1 (fr) 2010-10-27
EP2243999B1 EP2243999B1 (fr) 2016-04-13

Family

ID=41258657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10160629.1A Active EP2243999B1 (fr) 2009-04-22 2010-04-21 Luminaire à DELs pour effet d'éclairage mural

Country Status (2)

Country Link
EP (1) EP2243999B1 (fr)
IT (1) IT1393699B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11149925B2 (en) 2016-06-09 2021-10-19 Signify Holding B.V. Lighting device including adjustable cover
US11408590B2 (en) 2016-08-29 2022-08-09 Traxon Technologies Ltd. Luminaire and illumination system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1519102A2 (fr) * 2003-09-29 2005-03-30 ERCO Leuchten GmbH Lampe à réflecteur, telle que lampe à réflecteur encastrée dans le sol, le plafond ou le mur, en particulier lampe à réflecteur pour marches d'éscalier
DE202004001198U1 (de) * 2004-01-28 2005-06-09 Halemeier Gmbh & Co. Kg Nischenleuchte
WO2006126114A1 (fr) * 2005-05-25 2006-11-30 Koninklijke Philips Electronics N.V. Systeme d'eclairage, systeme d'eclairage pour etagere et systeme d'eclairage leche-mur
EP1746338A1 (fr) * 2005-07-22 2007-01-24 ERCO Leuchten GmbH Luminaire
EP1830178A2 (fr) * 2006-03-01 2007-09-05 Texmag GmbH Vertriebsgesellschaft GmbH Dispositif destiné à l'émission d'une lumière linéaire
WO2008098360A1 (fr) * 2007-02-16 2008-08-21 Koninklijke Philips Electronics N.V. Système optique pour luminaire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1519102A2 (fr) * 2003-09-29 2005-03-30 ERCO Leuchten GmbH Lampe à réflecteur, telle que lampe à réflecteur encastrée dans le sol, le plafond ou le mur, en particulier lampe à réflecteur pour marches d'éscalier
DE202004001198U1 (de) * 2004-01-28 2005-06-09 Halemeier Gmbh & Co. Kg Nischenleuchte
WO2006126114A1 (fr) * 2005-05-25 2006-11-30 Koninklijke Philips Electronics N.V. Systeme d'eclairage, systeme d'eclairage pour etagere et systeme d'eclairage leche-mur
EP1746338A1 (fr) * 2005-07-22 2007-01-24 ERCO Leuchten GmbH Luminaire
EP1830178A2 (fr) * 2006-03-01 2007-09-05 Texmag GmbH Vertriebsgesellschaft GmbH Dispositif destiné à l'émission d'une lumière linéaire
WO2008098360A1 (fr) * 2007-02-16 2008-08-21 Koninklijke Philips Electronics N.V. Système optique pour luminaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11149925B2 (en) 2016-06-09 2021-10-19 Signify Holding B.V. Lighting device including adjustable cover
US11408590B2 (en) 2016-08-29 2022-08-09 Traxon Technologies Ltd. Luminaire and illumination system

Also Published As

Publication number Publication date
IT1393699B1 (it) 2012-05-08
EP2243999B1 (fr) 2016-04-13
ITMI20090677A1 (it) 2010-10-23

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