WO2007113656A2 - dispositif d'éclairage - Google Patents

dispositif d'éclairage Download PDF

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Publication number
WO2007113656A2
WO2007113656A2 PCT/IB2007/000879 IB2007000879W WO2007113656A2 WO 2007113656 A2 WO2007113656 A2 WO 2007113656A2 IB 2007000879 W IB2007000879 W IB 2007000879W WO 2007113656 A2 WO2007113656 A2 WO 2007113656A2
Authority
WO
WIPO (PCT)
Prior art keywords
light source
holding body
motion
magnet
ferromagnetic
Prior art date
Application number
PCT/IB2007/000879
Other languages
English (en)
Other versions
WO2007113656A3 (fr
Inventor
Marinella Laura Patetta
Claudio Valent
Original Assignee
Fontanaarte S.P.A.
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 Fontanaarte S.P.A. filed Critical Fontanaarte S.P.A.
Publication of WO2007113656A2 publication Critical patent/WO2007113656A2/fr
Publication of WO2007113656A3 publication Critical patent/WO2007113656A3/fr

Links

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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of 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
    • F21S8/022—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a floor or like ground surface, e.g. pavement or false floor
    • 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
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor

Definitions

  • the present invention relates to a lighting device, in particular for external locations.
  • Lighting devices of the known art usually comprise a holding body inside which one or more light sources are housed.
  • the holding body has an opening through which access to the light sources is allowed and through which the light beam emitted by the light sources spreads externally of the container, so that the surrounding atmosphere is illuminated.
  • the opening in the holding body is closed by a cover that is transparent to the light and is usually made of glass or plastic material, to avoid external foreign bodies entering the holding body and impairing operation of the light sources.
  • the transparent cover is sealingly coupled to the holding body in the most hermetic possible manner.
  • orientation of the light beam emitted by the lighting device is often required to be changed so that a particular region may be illuminated or a play of light of particular scenic effect may be created. This change of orientation of the light beam is carried out in devices of the known art in two different ways.
  • the whole holding body is oriented in the desired direction, through orientation of the light sources that are integral with the holding body itself.
  • This type of solution is carried out by securing the holding body to one or more supporting arms that are mutually movable and rotatable, so that through displacement of these supporting arms, the holding body takes the desired spatial orientation, as in the case of table lamps, for example.
  • Another type of solution contemplates dismantling of the transparent cover so as to accede to the light sources and conveniently orient them.
  • This type of solution is indispensable when it is not possible to equip the holding body with supporting arms, such as in the case of particularly heavy lighting devices; see, for example, the lighting devices defining communication paths in which the holding body is buried and emerges from the ground with the transparent cover alone, such as spotlights inserted in false ceilings and the like.
  • opening of the transparent cover may impair the hermetic tightness of the coupling between cover and holding body.
  • seals are present between the cover and holding body, a repeated removal and new installation of the cover gives rise to inevitable damages to the seals, allowing seepage of water and moisture into the holding body.
  • the requirement of preventing foreign bodies, in particular water and moisture, from penetrating through the holding body of the lighting devices contrasts with the necessity to be able to accede to the light sources in order to vary orientation of the light beam emitted therefrom.
  • the main technical task of the present invention is to propose a lighting device capable of reconciling the above mentioned requirements.
  • - Fig. 1 is a perspective view of a lighting device in accordance with the present invention
  • Fig. 2 is a cross-section view taken along line III- III of the device seen in Fig. 1;
  • Fig. 4 is a perspective view of a detail .of the device seen in Fig. 2.
  • a lighting device in accordance with the present invention has been generally identified with reference numeral 1.
  • the lighting device 1 is of the type suitable for being buried so that emission of the light beam takes place from the ground towards the sky.
  • the following description can also refer to any type of lighting devices .
  • Device 1 comprises a holding body 2 adapted to be buried and provided with an opening 3 located on one side of the holding body 2 itself.
  • Device 1 further comprises at least one light source 4, two light sources in the embodiment shown in the drawings, which is contained in the holding body 2 to emit a light beam through opening 3.
  • Opening 3 of the holding body 2 is closed by a closing cover 5 that is transparent to the light beam to enable a region external to device 1 to be illuminated.
  • the closing cover 5 can be made of any material transparent to the light, i.e. glass, plastic material, quartz and the like.
  • the material of which the holding body 2 is made in the preferred embodiment consists of metal although said body can be made of any material.
  • the closing cover 5 is in the form of a spherical cap and comprises a peripheral annular protuberance 6 insertable in a peripheral annular recess 7 of the holding body opening 3, to hermetically associate cover 5 with opening 3.
  • the annular recess 7 of the holding body comprises a seal 8 closing any gap between cover 5 and holding body 2.
  • Opening 3 therefore is of circular shape and the holding body has a substantially cylindrical conformation.
  • the light sources 4 consist of two halogen or quartz-iodine lamps .
  • the light sources 4 are further' housed in a housing body 9 inserted in the holding body 2.
  • the housing body 9 is hinged to the inner wall of the holding body 2 along a substantially horizontal axis 3 thereof (Fig. 3), in such a manner that the " light sources can oscillate around this axis X and illuminate different regions of the space external to device 1.
  • device 1 comprises magnetic means 10 acting on the light source 4 and designed to be moved from the outside of the holding body 2 to move the light source 4 and illuminate different regions.
  • magnetic means 10 acting on the light source 4 and designed to be moved from the outside of the holding body 2 to move the light source 4 and illuminate different regions.
  • the magnetic means 10 comprises a ferromagnetic body 11, i.e. a body that is susceptible to magnetisation when plunged into an external magnetic field and is strongly attracted by the field such as magnetite and many transition metals like iron, cobalt, nickel and respective alloys, said electromagnetic body being movable and controlling operation of the light source 4;
  • the magnetic means 10 also "comprises a magnet 12, i.e. a body possessing a magnetic field, that can be moved from the outside of the holding body 2, as shown in Fig. 2, to set and drag in motion the ferromagnetic body 11, by magnetic induction.
  • magnet 12 is inserted in the holding body 2 and associated with the light source 4 while the ferromagnetic body is placed at the outside of the holding body 2.
  • the closing cover 5 that, as said, has the shape of a spherical cap, comprises an inner surface 5a facing the inside of the holding body 2 and therefore the light source 4, and an outer surface 5b facing the outside.
  • the ferromagnetic body 11 is positioned in a movable condition close to the inner surface 5a of the closing cover 5 and during its shifting always keeps close to this inner surface 5a.
  • Magnet 12 is put in contact with the outer surface 5b of the closing cover 5 and is shiftable along this surface .
  • the distance separating magnet 12 from the ferromagnetic body 11 is given by the thickness of the closing cover 5. The greater this thickness, the greater the magnetic field -generated by the magnet shall be.
  • the closing cover 3 not only is transparent to light radiation, but it must also be transparent to the magnetic field, i.e. it must enable correct propagation of the magnetic field between magnet 12 and ferromagnetic body 11.
  • Device 1 further comprises motion-transmitting means 13 interposed between the ferromagnetic body 11 and light source 4 and acting on the housing body 9 to transmit the motion imparted to the ferromagnetic body 11 by magnet 12, to the light source 4.
  • the motion- transmitting means 13 comprises a cammed guide 14 converting the rotatory motion of the ferromagnetic body 11 following the extension of the spherical cap -forming the closing cover 5, into an oscillatory motion of the light source 4.
  • the cammed guide 14 comprises an active profile 15, i.e. a groove extending in a predetermined path and a predetermined shape, formed in a semicylindrical surface 16 to which the ferromagnetic body 11 is secured.
  • the ferromagnetic body 11 is associated with the semicylindrical surface 16 through a tailpiece 16a to one end of which the ferromagnetic body 11 is fastened and to the other end of which the semicylindrical surface 16 is fastened.
  • a driven member 17 associated with the light source 4 is slidable within the active profile.
  • device 1 comprises a guide pin 18 extending in a direction Y that is substantially parallel to a generatrix of the cylindrical surface 16.
  • the driven member 17 is slidable along said guide pin 18 to convert the rotatory motion of the cylindrical surface 16 around a substantially vertical axis Yl into a rectilinear motion along the extension direction Y of the guide pin 18.
  • magnet 12 drives the ferromagnetic body 11 in movement, which body 11 is fastened to the cylindrical surface 17 moving along a substantially circular trajectory.
  • the cylindrical surface 17 therefore moves along a circular trajectory setting the active profile 15 in rotation, the latter carrying out a trajectory that is substantially in the form of an arc of a spiral.
  • the driven member 17 which is in engagement and slidable relative to the active profile 15, cannot follow a rotatory motion because it is slidably engaged in the guide pin 18.
  • the driven member 17 is therefore constrained to carry out a rising or lowering movement along the guide pin 18, converting the original rotatory motion of the ferromagnetic body 11 into a reciprocating rectilinear motion along the substantially vertical extension direction Y of the guide pin 18.
  • the driven member 17 comprises a post 19 engaged in an opening or recess 20 of the housing body 9.
  • the vertical rectilinear motion of the driven member causes an oscillation of the housing body 9 and therefore of the light source 4 around the hinge axis X between the housing body 3 and holding body 2.
  • the housing body 9 and light sources 4 oscillate around the horizontal axis X and illuminate different regions of the external space.
  • the housing body 9 and light sources 4 stay at the reached position and constantly illuminate the desired region.
  • the housing body further comprises a recess 21 inside which a heat sink is accommodated for dissipating the heat produced by the light sources 4.
  • device 1 comprises a tray 23 for receiving ' one or more power transformers for the light sources.
  • Tray 23 is disposed within the holding body 2 and is fastened thereto by means of screws 2b. Connection of transformers 24 to a power source takes place through an aperture 26 formed in the side wall of the holding body 2 and through which feeding cables (not shown) can pass.
  • the lighting device being the object of the present invention achieves the intended purposes.
  • the magnetic means 10 ensures the possibility of varying the orientation of the light beam emitted by the device without opening of the closing cover 5 being required for access to the inside of the holding body

Landscapes

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

Abstract

L'invention concerne un dispositif d'éclairage comprenant un corps principal (2) possédant au moins une ouverture (3), au moins une source lumineuse (4) contenue dans ledit corps principal (2) afin d'émettre un faisceau lumineux via l'ouverture (3), et un élément de fermeture (5) de l'ouverture (3), lequel est transparent à l'égard du faisceau lumineux. La source lumineuse (4) est déplaçable au sein du corps principal (2). Le dispositif comprend de plus des moyens magnétiques (10) agissant sur la source lumineuse (4) et pouvant être déplacés depuis l'extérieur du corps principal (2) pour déplacer et orienter la source lumineuse (4).
PCT/IB2007/000879 2006-04-04 2007-04-03 dispositif d'éclairage WO2007113656A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20060658 ITMI20060658A1 (it) 2006-04-04 2006-04-04 Dispositivo di illuminazione
ITMI2006A000658 2006-04-04

Publications (2)

Publication Number Publication Date
WO2007113656A2 true WO2007113656A2 (fr) 2007-10-11
WO2007113656A3 WO2007113656A3 (fr) 2011-04-07

Family

ID=38564029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/000879 WO2007113656A2 (fr) 2006-04-04 2007-04-03 dispositif d'éclairage

Country Status (2)

Country Link
IT (1) ITMI20060658A1 (fr)
WO (1) WO2007113656A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010027913A1 (fr) 2008-09-08 2010-03-11 Lsi Industries, Inc. Eclairage à del creusé pouvant être orienté de l'extérieur
US7972035B2 (en) 2007-10-24 2011-07-05 Lsi Industries, Inc. Adjustable lighting apparatus
DE202013101824U1 (de) * 2013-04-26 2014-07-29 Zumtobel Lighting Gmbh Leuchte mit einstellbarer Lichtabstrahlcharakteristik
CN112344267A (zh) * 2020-11-19 2021-02-09 杭州罗莱迪思科技股份有限公司 一种基于物联网的可调地埋灯

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689759A (en) * 1968-11-22 1972-09-05 Elektron Ag Underwater searchlight
US20020018343A1 (en) * 2000-08-11 2002-02-14 Wilfried Steger Focusing waterproof flashlight
FR2836985A1 (fr) * 2002-03-07 2003-09-12 Bastien Christian Benoit Carre Systeme d'eclairage a sources mobiles
WO2007138521A2 (fr) * 2006-05-31 2007-12-06 Targetti Sankey S.P.A. Dispositif d'éclairage à système d'attraction magnétique pour orienter le faisceau lumineux

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689759A (en) * 1968-11-22 1972-09-05 Elektron Ag Underwater searchlight
US20020018343A1 (en) * 2000-08-11 2002-02-14 Wilfried Steger Focusing waterproof flashlight
FR2836985A1 (fr) * 2002-03-07 2003-09-12 Bastien Christian Benoit Carre Systeme d'eclairage a sources mobiles
WO2007138521A2 (fr) * 2006-05-31 2007-12-06 Targetti Sankey S.P.A. Dispositif d'éclairage à système d'attraction magnétique pour orienter le faisceau lumineux

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7972035B2 (en) 2007-10-24 2011-07-05 Lsi Industries, Inc. Adjustable lighting apparatus
WO2010027913A1 (fr) 2008-09-08 2010-03-11 Lsi Industries, Inc. Eclairage à del creusé pouvant être orienté de l'extérieur
JP2012502431A (ja) * 2008-09-08 2012-01-26 エルエスアイ・インダストリーズ・インコーポレーテッド 外部から配向可能なｌｅｄ地中ライト
US8152334B2 (en) 2008-09-08 2012-04-10 Lsi Industries, Inc. LED lighting assembly with adjustment means
US8567991B2 (en) 2008-09-08 2013-10-29 Lsi Industries, Inc. LED inground light
DE202013101824U1 (de) * 2013-04-26 2014-07-29 Zumtobel Lighting Gmbh Leuchte mit einstellbarer Lichtabstrahlcharakteristik
EP2796780A1 (fr) * 2013-04-26 2014-10-29 Zumtobel Lighting GmbH Luminaire doté d'une caractéristique de rayonnement lumineux réglable
CN112344267A (zh) * 2020-11-19 2021-02-09 杭州罗莱迪思科技股份有限公司 一种基于物联网的可调地埋灯
CN112344267B (zh) * 2020-11-19 2021-05-18 杭州罗莱迪思科技股份有限公司 一种基于物联网的可调地埋灯

Also Published As

Publication number Publication date
WO2007113656A3 (fr) 2011-04-07
ITMI20060658A1 (it) 2007-10-05

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