WO2009112926A2 - Dispositif d'éclairage incluant une del - Google Patents

Dispositif d'éclairage incluant une del Download PDF

Info

Publication number
WO2009112926A2
WO2009112926A2 PCT/IB2009/000473 IB2009000473W WO2009112926A2 WO 2009112926 A2 WO2009112926 A2 WO 2009112926A2 IB 2009000473 W IB2009000473 W IB 2009000473W WO 2009112926 A2 WO2009112926 A2 WO 2009112926A2
Authority
WO
WIPO (PCT)
Prior art keywords
lens
led
support
elongated body
support structure
Prior art date
Application number
PCT/IB2009/000473
Other languages
English (en)
Other versions
WO2009112926A3 (fr
Inventor
Enzo Catellani
Original Assignee
Enzo Catellani
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 Enzo Catellani filed Critical Enzo Catellani
Priority to ES09719975.6T priority Critical patent/ES2584241T3/es
Priority to EP09719975.6A priority patent/EP2252827B1/fr
Publication of WO2009112926A2 publication Critical patent/WO2009112926A2/fr
Publication of WO2009112926A3 publication Critical patent/WO2009112926A3/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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting device including a LED of the type specified in the preamble of Claim 1.
  • LEDs ascronym for light emitting diode
  • LED lighting devices have various advantages with respect to more conventional lighting devices, such as incandescent lamps and fluorescent lamps.
  • LEDs have a very small volume, even less than one cm 3 , very high efficiency, produce a light that can obtain a desired colour, switch on very quickly when energized by electrical current and so forth.
  • LED lighting devices also have some considerable drawbacks.
  • LEDs produce a diffused lighting which is not suitable for particular atmospheres or for indoor spaces.
  • the technical aim of the present invention is to devise a lighting device including a LED capable of substantially overcoming the aforesaid drawbacks.
  • an important object of the invention is to achieve a lighting device including a LED which produces diffused lighting.
  • Fig. 1 shows a top view of the lighting device according to the invention
  • Fig. 2 shows a side view of the lighting device
  • Fig. 3 shows a side view of the lighting device in a different configuration.
  • the lighting device according to the invention is indicated as a whole with the number 1.
  • It comprises at least one LED 2, a support structure 3 for the LED 2 and a lens
  • the lens 4 is conveniently made of crystal or alternatively glass, or generally vitreous material, polymer or silicone.
  • the lens 4 has a base diameter preferably of between 1 cm and 10 cm and more preferably between 1 cm and 5 cm, a height of between 0.4 cm and 6 cm and more preferably between 1 cm and 3 cm and a diameter to height ratio preferably between 2 and 4 and more preferably between 2.5 and 3.5.
  • two sizes of lens 4 are provided, one with a diameter of between 18 mm and 22 mm and a height between 6 mm and 9 mm and the other with a diameter of between 30 mm and 36 mm and a height between 9 mm and 12 mm.
  • a grinding of between 1 mm and 3 mm is also provided on the flat base to avoid the creation of sharp corners.
  • the LED 2 is realized by a printed circuit 2a and a bulb, or primary lens 2b.
  • the printed circuit 2a is conveniently substantially rectangular and flat and has base dimensions of between 1 mm and 5 mm.
  • the bulb 2b is made of polymer or silicone material, or glass and preferably has an external diameter of between 0.3 mm and 3 mm and more preferably between 1.5 mm and 2 mm. Moreover, it has a substantially semi-spherical shape.
  • the LED 2 has a power of between 1 W and 50 W and more preferably between 1 W and 20 W and even more preferably around 20 W.
  • the support structure 3 is conveniently a rod extending prevalently along a single direction and comprising a curved portion, as specified below.
  • the support structure 3 comprises an elongated body 6, preferably a rod, tubular and hollow and therefore comprising a cavity 6a. It is made of metal, preferably nickel plated copper, preferably with a substantially circular normal section, and with a diameter preferably of between 1 mm and 30 mm, more preferably between 2 mm and 6 mm.
  • the elongated body 6 comprises support means 7 of the LED 2.
  • the plates include a support surface 7a, part of the elongated body 6 and preferably defined by a flattened portion of this elongated body 6, and a plate 8 fixed to the support surface 7a and suitable to support the LED 2 directly.
  • the plate 8 is conveniently rectangular and made of aluminium alloy; moreover, it has a thickness close to the diameter of the elongated body 6, a length of between 2 and 3 cm and a height between 0.5 mm and 3 mm.
  • the elongated body 6 allows optimum dispersion of the heat coming from the
  • LED 2 and houses therein electrical connections 9 for the LED 2.
  • the support structure 3 also preferably comprises a support element 5, suitable to support the lens 4.
  • the support element 5 is part of the support structure 3 and is suitable to support the lens 4 so that this is placed in proximity of the LED 2 but not in direct contact therewith, as shown in Fig. 2.
  • the support element 5 is conveniently realized by an ideal extension of the end portion of the elongated body 6, conveniently bent in a U, as shown in Fig. 2.
  • the support element 5 allows support of the lens 4, preferably placed in a direction parallel to the direction of the plane on which the circuit 2a of the LED 2 lies, and at a distance therefrom.
  • the distance between the LED 2 and the lens 4 is between 0.5 mm and 10 mm, and more preferably between 1 mm and 4 mm, therefrom.
  • the lens 4 is preferably disposed so that the centre of the circumference is aligned vertically to the LED 2, as shown in Fig. 1.
  • the upper part of the support element 5 therefore has a greater length in the case in which the lens 4 has a smaller diameter.
  • the lens 4 is then connected using a specific glue to the support element 5, for a length of less than on centimetre.
  • the elongated body 6 is also preferably flattened at the support element 5, so as to form an ellipsoidal section with a ratio between dimensions of around one half and with the major axis parallel to the plate 8. Moreover, the support element 5 is preferably provided separable from the elongated body 6.
  • releasable mechanical connection means 10 are provided between the element 5 and the elongated body 6.
  • the elongated body 6 comprises a preferably circular hollow terminal end 6b.
  • the tubular body 6 has a length preferably greater than 5 mm, as shown in Fig. 1 , and more preferably of between 0.8 cm and 2 cm.
  • This end section of the tubular body 6 realizes part of the connection means 10, which are completed by a circular pin 11 , integral with the support element 5 and counter-shaped to the cavity 6a, therefore circular and having a diameter preferably of between 1 mm and 3 mm.
  • connection means 10 can be provided, equipped with directional elements which prevent rotation of the support element 5 inside the cavity 6a in the direction parallel thereto.
  • the lighting device 1 achieves important advantages. In fact, by means of the presence of the lens 4, the device 1 produces a particular bubble or bulb lighting, optimal for lighting both indoor and outdoor spaces.
  • the arrangement of the lens 4, not in direct contact with the LED 2, allows high dissipation of the heat that is created in the LED 2. Furthermore, the lens 2 is releasable from the LED 2 and thus allows the latter to be used in different modes and situations.
  • the support element 5 can in fact be removed and replaced immediately and with another support element provided with a different lens 4.
  • the structure is simple and solid, as well as easy to produce.
  • fixing of the lens 4 on the support element 5, by means of a simple glue is immediate and can be performed with precision, without the need for further elements.
  • the invention is susceptible to modifications and variants falling within the inventive concept.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage (1) comprenant au moins une DEL (2), au moins une lentille (4), et une structure de support de tige (3) pour la DEL (2) et la lentille (4). Le dispositif est approprié pour supporter la lentille (4) à distance de la DEL (2) et d'une manière appropriée pour modifier l'éclairage de la DEL (2), de préférence par le biais d'un élément de support (5) formé par une partie courbée de la structure de support de la tige (3).
PCT/IB2009/000473 2008-03-13 2009-03-10 Dispositif d'éclairage incluant une del WO2009112926A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES09719975.6T ES2584241T3 (es) 2008-03-13 2009-03-10 Dispositivo de iluminación que incluye un LED
EP09719975.6A EP2252827B1 (fr) 2008-03-13 2009-03-10 Dispositif d'éclairage incluant une del

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2008A000429 2008-03-13
IT000429A ITMI20080429A1 (it) 2008-03-13 2008-03-13 Dispositivo di illuminazione includente led

Publications (2)

Publication Number Publication Date
WO2009112926A2 true WO2009112926A2 (fr) 2009-09-17
WO2009112926A3 WO2009112926A3 (fr) 2009-11-05

Family

ID=40292888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/000473 WO2009112926A2 (fr) 2008-03-13 2009-03-10 Dispositif d'éclairage incluant une del

Country Status (4)

Country Link
EP (1) EP2252827B1 (fr)
ES (1) ES2584241T3 (fr)
IT (1) ITMI20080429A1 (fr)
WO (1) WO2009112926A2 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998055799A1 (fr) * 1997-06-03 1998-12-10 Gavriel Menashrov Recipient pour boire eclaire
US20020191396A1 (en) * 2001-04-11 2002-12-19 Reiff Paul J. LED work light
US20040156199A1 (en) * 2002-09-23 2004-08-12 Nelson Rivas LED lighting apparatus
JP2004296245A (ja) * 2003-03-26 2004-10-21 Matsushita Electric Works Ltd Ｌｅｄランプ
JP2004296249A (ja) * 2003-03-26 2004-10-21 Matsushita Electric Works Ltd 照明器具
WO2006090858A1 (fr) * 2005-02-24 2006-08-31 Litehouse Technologies Corporation Dispositif emetteur de lumiere et objet emetteur de lumiere l’utilisant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998055799A1 (fr) * 1997-06-03 1998-12-10 Gavriel Menashrov Recipient pour boire eclaire
US20020191396A1 (en) * 2001-04-11 2002-12-19 Reiff Paul J. LED work light
US20040156199A1 (en) * 2002-09-23 2004-08-12 Nelson Rivas LED lighting apparatus
JP2004296245A (ja) * 2003-03-26 2004-10-21 Matsushita Electric Works Ltd Ｌｅｄランプ
JP2004296249A (ja) * 2003-03-26 2004-10-21 Matsushita Electric Works Ltd 照明器具
WO2006090858A1 (fr) * 2005-02-24 2006-08-31 Litehouse Technologies Corporation Dispositif emetteur de lumiere et objet emetteur de lumiere l’utilisant

Also Published As

Publication number Publication date
WO2009112926A3 (fr) 2009-11-05
EP2252827A2 (fr) 2010-11-24
ITMI20080429A1 (it) 2009-09-14
ES2584241T3 (es) 2016-09-26
EP2252827B1 (fr) 2016-06-08

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