EP2206945A1 - Dispositif d'éclairage avec DEL pour l'extérieur et pour grandes surfaces avec dissipation de chaleur optimisé - Google Patents

Dispositif d'éclairage avec DEL pour l'extérieur et pour grandes surfaces avec dissipation de chaleur optimisé Download PDF

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Publication number
EP2206945A1
EP2206945A1 EP09180160A EP09180160A EP2206945A1 EP 2206945 A1 EP2206945 A1 EP 2206945A1 EP 09180160 A EP09180160 A EP 09180160A EP 09180160 A EP09180160 A EP 09180160A EP 2206945 A1 EP2206945 A1 EP 2206945A1
Authority
EP
European Patent Office
Prior art keywords
lighting device
outdoors
covered areas
led lighting
lamp body
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
EP09180160A
Other languages
German (de)
English (en)
Other versions
EP2206945B1 (fr
Inventor
Massimo Viglione
Marco Ezio Enea Lamperti
Antonio Macchi Cassia
Pietro Maria Castiglioni
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.)
Ibt Lighting SpA
Original Assignee
Ibt Lighting 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 Ibt Lighting SpA filed Critical Ibt Lighting SpA
Publication of EP2206945A1 publication Critical patent/EP2206945A1/fr
Application granted granted Critical
Publication of EP2206945B1 publication Critical patent/EP2206945B1/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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • 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
    • 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
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • 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
    • F21V29/763—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 the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor 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
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • 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 refers to a lighting device for use outdoors and in large covered areas, in the public and private sectors, distinguished by an optimized heat dissipation.
  • the lighting device for outdoors and large covered areas according to the present invention is based on the use of preferably high power LEDs as the light source.
  • High power LEDs have seen continuous and progressive improvements, over the last years, in terms of light efficiency and they are considered the light source of the next generation for general lighting applications. Moreover, the absence of light pollution and the drastic reduction of maintenance costs, ensured by this type of light source, opens the doors to a rapid penetration on the market, with a gradual replacement of conventional lighting sources for outdoors and large covered areas, like high pressure sodium and metal iodides.
  • One of the main advantages of the high power LED light source comes from the fact that, if correctly managed, it can have a useful life which is greater than 50.000 hours, with consequent advantages for the maintenance of the lighting device.
  • LED light source in particular if it is high power, although it offers high light efficiency, has an intrinsic amount of power which is not converted into light but consists of heat to be disposed of.
  • the performance of the dissipation elements is thus fundamental in order to reach the useful life objectives in the final product. Its purpose is to keep the temperature of the lighting device at values which are not dangerous for the life of the LED light sources.
  • An optimal sizing of the dissipating elements makes it possible to increase the service life of the product and thus to reduce the costs and maintenance time it requires.
  • the lighting devices for outdoors and large covered areas known to this day, having one or more LEDs as their light source, are thus designed in a way such as to foresee at least one suitably sized dissipator element in contact with the LED light sources.
  • the purpose of the present invention is that of avoiding the aforementioned drawbacks and in particular that of conceiving an LED lighting device for outdoors and large covered areas that, for the same dissipating surface of the dissipating element used, offers improved dissipation performance.
  • a further purpose of the present invention is that of making an LED lighting device for outdoors and large covered areas, which is able to produce a homogeneous and efficient cooling effect on the LEDs.
  • Last but not least purpose of the present invention is that of conceiving an LED lighting device for outdoors and large covered areas, which offers a particularly long service life.
  • an LED lighting device for outdoors and large covered areas is shown, wholly indicated with reference numeral 10.
  • the LED lighting device for outdoors and large covered areas 10 comprises a plurality of, preferably high power, LED light sources 11 directly constrained to a finned body which constitutes the lamp body 13.
  • the finned ring lamp body 13 to which the plurality of LED light sources 11 is constrained underneath, has a substantially flat ring base 13a from the top of which a plurality of fins 13b, substantially arranged along the entire ring defined by the lamp body 13, projects upwards.
  • ring shape it is not only referred to a perfectly circular flat plan shape, but generic shapes are meant which are centrally hollow, for example having a an elliptical, square or rectangular base and so forth, the said shapes following the profile of surfaces which are not necessarily flat, such as for example curved surfaces, or surfaces having a profile corresponding to a broken line.
  • the ring base 13a acts as a surface for coupling with at least one lower optical element 12, on which there is a plurality of lenses 18 arranged in matrixes.
  • optical element 12 below is in general constrained to the lamp body 13 through suitable constraining means 20.
  • the group made of the lamp body 13 and the optical element 12 forms a toroid 12,13.
  • the lamp body 13 and the optical element 12 define inside the toroid 12,13 a substantially flat first chamber 11a, in which the LED light sources 11 are housed.
  • the LED light sources 11 with the relative circuitry 11b are also constrained to the finned ring lamp body 13 through the action of the constraining means 20 which keep the optical element 12 constrained to the lamp body 13.
  • the plurality of LED light sources 11 and the relative circuitry 11b are directly constrained to the bottom of the ring base 13a of the lamp body 13, whereas from the top of the ring base 13a the plurality of fins 13b projects upwards.
  • a mask element 14 that, along with the lamp body 13, defines a second chamber 14b for housing the cables for supplying power to the LED light sources 11.
  • the mask element 14 is also constrained to the lamp body 13 through suitable constraining means (not illustrated).
  • the positioning and the distribution of the light sources 11 follow the profile outlined by the finned ring lamp body 13.
  • the LED light sources 11 are arranged in groups of matrixes in which each matrix is associated with an optical element 12, in such a manner that the single LED light source 11 is optically coupled with a single lens 18, forming part of the optical element 12.
  • the resulting light distribution on the ground is thus made up of the sum of all the single flows coming out from every optical element 12, which therefore equally contribute to lighting up the street area to be lit.
  • the mask element 14 makes it possible to have a homogeneous visual appearance of the lighting apparatus for outdoors and large covered areas, due to the fact that it gathers the light emitted laterally by the optical elements 12 and diffuses it through a plurality of prisms 14a formed on the mask element 14.
  • the effect obtained is that, when turned on, the lighting device seems like a uniform ring of light thus masking the plurality of single spot lights.
  • the fins 13b of the finned ring body 13 can take on any profile, even different from one another, according to the overall shape which is wished to be given to the lighting device for outdoors and large covered areas 10, as well as according to the type (conduction and/or convection) and quantity of heat transmission that is wished to be obtained through the finned ring body 13.
  • the plurality of fins 13b is uniformly distributed along the entire extension of the ring base 13a.
  • the single fins 13b are made with a thickness which is as thin as possible, where the limit of the choice of thickness depends on the type of material used as well as on the technology used for making the finned body 13.
  • the fins 13b are arranged along radiuses whose geometrical centre coincides with the centre of the lamp body 13.
  • This geometry promotes uniformity of the thermal path. Moreover, such an arrangement does not have a single preferential direction, and thus expresses a better behaviour, in operating conditions, when there is wind.
  • the spacing between the fins 13b is defined according to a volumetric approach to the natural convection. Indeed, if two fins 13b are too close together they affect each other negatively whereas, if they are too far apart the overall number of fins 13b of the finned ring lamp body 13 and thus the total surface of heat exchange is reduced.
  • the optimal spacing is that which maximises the coefficients of heat exchange and thus the total power transmitted to the environment, according to the sizes of the dissipator, in turn depending on the overall sizes of the lighting device 10 and depending on the limit temperature one wishes to have at the lamp body 13 itself.
  • fins 13b extending for the entire thickness of the lower ring base 13a are alternated with fins 13b' which extend for only a portion of such a thickness, in particular arranged in the outermost portion of the finned ring lamp body 13. This is done so as to exploit the fact that, at the outermost portion, the circular-shaped finned ring lamp body 13 has a circumference which is greater and thus has more space for housing such fins 13b without having them excessively close to one another.
  • the finned ring lamp body 13 being configured according to a closed profile, creates a central cavity that, for the same overall size of the lighting device, makes it possible to have a cool air flow towards the fins 13b, coming both from the outer perimeter of the device, and from the inner perimeter corresponding to the perimeter of the cavity, as illustrated in figures 3 , 4 , 6 and 8 .
  • the fins 13b have a marked phenomenon of thermal convection which takes the heat away from the lamp body 13.
  • the heat dissipation is thus improved with respect to the condition of dissipators known nowadays, in which the cooling air is typically not able to reach the centre of the dissipator causing the cooling effect to be heterogeneous and inefficient.
  • the fins 13b, 13b' of the finned lamp body 13 are preferably interrupted in one or more sectors of such a body 13 in which hollow compartments 13c, 15 are arranged.
  • FIG 2 it is possible to foresee a single hollow compartment 15 suitable for housing electronic means (not illustrated) inside of it, necessary for supplying power and, preferably, also for managing the lighting device 10, such as a power supply unit and a plurality of sensors and/or actuators.
  • electronic means not illustrated
  • FIG. 5 it is possible to conceive making, in predetermined positions, an additional plurality of hollow compartments 13c suitable for the same purpose.
  • the power supply unit dispenses the correct power supply to both the LED light sources 11 of the lighting device 10, and the further electronic means.
  • Such electronic means are used to manage the communication between the lighting device for outdoors and large covered areas 10 and a remote control unit, which verifies the correct operation of the device 10 and records the sent data (signals, anomalies, images and so forth).
  • the communication is managed through a control unit integrated in the power supply unit of the lighting device for outdoors and large covered areas 10 suitable for recording possible anomalies and for transmitting the operation parameters to a connection unit installed in the electrical distribution cabin, which in turn is connected to a remote control station.
  • the electronic means housed in the hollow compartment 15 can comprise a webcam, for recording and sending images to a remote unit, and/or a pollution sensor for recording the air quality, and/or temperature sensors and/or smoke sensors for fire safety and/or anti-intrusion movement sensors for private use.
  • the electronic means can be active devices, amongst which, for example, an extinguisher system which operates in the case of fire, detected by the temperature and/or smoke sensors.
  • suitable hooking means 16 are foreseen comprising a first portion 16a integral with the finned ring lamp body 13 connected by means of a pivot to a second hollow tube-shaped portion 16b, suitable for cooperating with the support pole of the lighting device for outdoors and large covered areas 10.
  • the first portion 16a of the hooking means 16 is integral with a hollow compartment 15, 13c of the lamp body 13, it preferably has a finning 16c intended for the thermal dissipation of the electronic means contained in the compartment 15, 13c itself, as illustrated in figures 5 , 7 and 9 .
  • a screen 19 is also advantageously foreseen, above the finned ring lamp body 13, having the same ring shape and a suitably shaped profile which further improves the dissipation performance of the finned ring lamp body 13.
  • the upper screen 19 constitutes a protection from direct solar radiation, for all the electronic components of the lighting device 10.
  • the protection offered by the screen 19 against solar radiation indeed keeps the lighting device, and thus the LED light sources 11 and the finned lamp body 13, at a lower temperature with respect to what it would be without the screen 19, positively contributing to the thermal dissipation and to the useful life of the device 10.
  • the screen 19 can advantageously be connected to a hollow body 15, 13c through suitable connection means 21.
  • the screen 19 has a profile which at least partially follows the profile of the fins 13b, 13c and on top of it, it can have some slits 22 for disposing of the heat released by the fins 13b, 13c.
  • the arrangement of the slits 22 shown in figures 7 and 8 is not restricted to the number, size and shape of the slits 22 themselves.
  • the screen 19 is configured in such a manner that the fins 13b, 13c themselves create a channel 17 with parallel walls having a substantially ascending direction or, at least, having an inlet 17a and an outlet 17b, in which the inlet of the channel 17a is positioned in a lower position with respect to the outlet 17b.
  • the screen 19 thus makes it possible to obtain an increased air flow through the fins 13b of the finned body 13, as illustrated in figure 10 .
  • a pressure difference is thus created between the inner and outer area of the channel 17, which accentuates even more the cool air flow entering in the finned body 13 in at least one of the two flow directions outlined in relation to the embodiments without a screen 19.
  • This flow can be amplified by the presence of wind which impacts the surface of the screen 19.
  • the LED lighting device for outdoors and large covered areas according to the present invention is indeed able to offer an increased dissipation effect for the same dissipation surface of the dissipation element used, obtaining a homogeneous and efficient cooling effect on the LEDs. In such a way, a long service life of the lighting device for outdoors and large covered areas according to the present invention is ensured.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)
EP09180160A 2008-12-30 2009-12-21 Dispositif d'éclairage avec DEL pour l'extérieur et pour grandes surfaces avec dissipation de chaleur optimisé Active EP2206945B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2008A002349A IT1392500B1 (it) 2008-12-30 2008-12-30 Dispositivo di illuminazione a led a dissipazione di calore ottimizzata per esterni e grandi aree coperte

Publications (2)

Publication Number Publication Date
EP2206945A1 true EP2206945A1 (fr) 2010-07-14
EP2206945B1 EP2206945B1 (fr) 2013-02-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09180160A Active EP2206945B1 (fr) 2008-12-30 2009-12-21 Dispositif d'éclairage avec DEL pour l'extérieur et pour grandes surfaces avec dissipation de chaleur optimisé

Country Status (4)

Country Link
EP (1) EP2206945B1 (fr)
AU (1) AU2009251130A1 (fr)
IT (1) IT1392500B1 (fr)
NZ (1) NZ582311A (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481982A (en) * 2010-07-12 2012-01-18 Simon Fussell Light head with flared cooling passage
EP2431660A1 (fr) * 2010-09-17 2012-03-21 LG Innotek Co., Ltd. Dispositif de lampe
WO2012044608A1 (fr) * 2010-09-27 2012-04-05 Battelle Memorial Institute Composés de rubidium et de césium pour absorption biphotonique
ITUD20110002A1 (it) * 2011-01-14 2012-07-15 Martini Spa Dissipatore dinamico di calore
CN102620189A (zh) * 2012-03-05 2012-08-01 北京首钢自动化信息技术有限公司 一种大功率led路灯
US8297790B2 (en) 2010-08-18 2012-10-30 Lg Innotek Co., Ltd. Lamp device
WO2013020842A1 (fr) * 2011-08-11 2013-02-14 Hella Kgaa Hueck & Co. Module lumineux pour un éclairage extérieur
RU2482386C1 (ru) * 2011-10-07 2013-05-20 Общество с ограниченной ответственностью "Научно-производственное объединение "Новые экологические технологии и оборудование" Светодиодное устройство уличного освещения
US8585250B1 (en) 2012-07-10 2013-11-19 Posco Led Company, Ltd. Optical semiconductor lighting apparatus
KR101347391B1 (ko) * 2012-07-13 2014-01-09 주식회사 포스코티엠씨 광 반도체 조명장치
EP2562474A3 (fr) * 2011-08-24 2014-06-25 Panasonic Corporation Dispositif d'illumination
US9702539B2 (en) 2014-10-21 2017-07-11 Cooper Technologies Company Flow-through luminaire
EP3296618A4 (fr) * 2015-12-29 2018-12-12 Oppel Lighting Co., Ltd Module source de lumière et dispositif d'éclairage
EP2806209B1 (fr) * 2013-05-24 2019-03-20 Holophane Europe Ltd. Luminaire à DEL avec de multiples évents pour favoriser la ventilation verticale

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN208139045U (zh) 2018-05-29 2018-11-23 苏州欧普照明有限公司 一种照明装置

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US20040120156A1 (en) 2002-12-24 2004-06-24 Ryan John T. Peltier-cooled LED lighting assembly
JP2006040727A (ja) 2004-07-27 2006-02-09 Matsushita Electric Works Ltd 発光ダイオード点灯装置及び照明器具
US20070263388A1 (en) * 2006-05-12 2007-11-15 Industrial Technology Research Institute Illumination device of flexible lighting angle
WO2008035693A1 (fr) * 2006-09-20 2008-03-27 Osram Gesellschaft Mit Beschraenkter Haftung Lampe à diodes électroluminescentes
WO2008035639A1 (fr) 2006-09-19 2008-03-27 Nhk Spring Co., Ltd. Contre-écrou

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040120156A1 (en) 2002-12-24 2004-06-24 Ryan John T. Peltier-cooled LED lighting assembly
JP2006040727A (ja) 2004-07-27 2006-02-09 Matsushita Electric Works Ltd 発光ダイオード点灯装置及び照明器具
US20070263388A1 (en) * 2006-05-12 2007-11-15 Industrial Technology Research Institute Illumination device of flexible lighting angle
WO2008035639A1 (fr) 2006-09-19 2008-03-27 Nhk Spring Co., Ltd. Contre-écrou
WO2008035693A1 (fr) * 2006-09-20 2008-03-27 Osram Gesellschaft Mit Beschraenkter Haftung Lampe à diodes électroluminescentes

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481982A (en) * 2010-07-12 2012-01-18 Simon Fussell Light head with flared cooling passage
GB2481982B (en) * 2010-07-12 2015-01-28 Simon Fussell Light head
US8297790B2 (en) 2010-08-18 2012-10-30 Lg Innotek Co., Ltd. Lamp device
US8419220B2 (en) 2010-08-18 2013-04-16 Lg Innotek Co., Ltd. Lamp device
US8476813B2 (en) 2010-09-17 2013-07-02 Lg Innotek Co., Ltd. Lamp device
EP2431660A1 (fr) * 2010-09-17 2012-03-21 LG Innotek Co., Ltd. Dispositif de lampe
EP2511606A1 (fr) 2010-09-17 2012-10-17 LG Innotek Co., Ltd. Dispositif de lampe
WO2012044608A1 (fr) * 2010-09-27 2012-04-05 Battelle Memorial Institute Composés de rubidium et de césium pour absorption biphotonique
US8674126B2 (en) 2010-09-27 2014-03-18 Battelle Memorial Institute Rubidium and cesium compounds for two-photon absorption
ITUD20110002A1 (it) * 2011-01-14 2012-07-15 Martini Spa Dissipatore dinamico di calore
WO2013020842A1 (fr) * 2011-08-11 2013-02-14 Hella Kgaa Hueck & Co. Module lumineux pour un éclairage extérieur
CN103732982A (zh) * 2011-08-11 2014-04-16 黑拉许克联合股份有限公司 用于室外照明灯的发光模块
EP2562474A3 (fr) * 2011-08-24 2014-06-25 Panasonic Corporation Dispositif d'illumination
RU2482386C1 (ru) * 2011-10-07 2013-05-20 Общество с ограниченной ответственностью "Научно-производственное объединение "Новые экологические технологии и оборудование" Светодиодное устройство уличного освещения
CN102620189A (zh) * 2012-03-05 2012-08-01 北京首钢自动化信息技术有限公司 一种大功率led路灯
CN104246365A (zh) * 2012-07-10 2014-12-24 普司科Led股份有限公司 光学半导体照明装置
WO2014010778A1 (fr) * 2012-07-10 2014-01-16 주식회사 포스코엘이디 Dispositif d'éclairage à semi-conducteurs optiques
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KR101347391B1 (ko) * 2012-07-13 2014-01-09 주식회사 포스코티엠씨 광 반도체 조명장치
EP2806209B1 (fr) * 2013-05-24 2019-03-20 Holophane Europe Ltd. Luminaire à DEL avec de multiples évents pour favoriser la ventilation verticale
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EP3296618A4 (fr) * 2015-12-29 2018-12-12 Oppel Lighting Co., Ltd Module source de lumière et dispositif d'éclairage
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NZ582311A (en) 2011-06-30
IT1392500B1 (it) 2012-03-09
ITMI20082349A1 (it) 2010-06-30
AU2009251130A1 (en) 2010-07-15
EP2206945B1 (fr) 2013-02-20

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