CH704544A1 - Lighting apparatus to heat spreader. - Google Patents

Lighting apparatus to heat spreader. Download PDF

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Publication number
CH704544A1
CH704544A1 CH00304/11A CH3042011A CH704544A1 CH 704544 A1 CH704544 A1 CH 704544A1 CH 00304/11 A CH00304/11 A CH 00304/11A CH 3042011 A CH3042011 A CH 3042011A CH 704544 A1 CH704544 A1 CH 704544A1
Authority
CH
Switzerland
Prior art keywords
lighting
housing
heat
heat spreader
cams
Prior art date
Application number
CH00304/11A
Other languages
German (de)
Inventor
Martin Wuethrich
Christian Hochfilzer
Peter Boss
Original Assignee
Regent Beleuchtungskoerper Ag
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 Regent Beleuchtungskoerper Ag filed Critical Regent Beleuchtungskoerper Ag
Priority to CH00304/11A priority Critical patent/CH704544A1/en
Publication of CH704544A1 publication Critical patent/CH704544A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77Cooling 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
    • F21V29/773Cooling 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/80Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with pins or wires
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes

Abstract

The invention relates to a lighting device (1) having a lighting means (40), a heat distributor (20) connected thereto, a housing (10) connected to the heat distributor (20) and a reflector (30), the heat distributor (20) having a Tub (201) having a jacket (203) and an end wall (205), wherein the lighting means (40) on the end wall (205) is applied, wherein the jacket (203) of the trough (201) has two mutually remote jacket ends and to the outside projecting cams (207), wherein between the cams (207) through, extending from one to the other shell end channels (209) are present, and that the housing (10) on the cam (207) is applied to heat loss of the illuminant over the To dissipate cams to the housing and to air flowing through the channels.

Description

The invention relates to a lighting device according to the preamble of claim 1.
description
In the prior art, the cooling of lamps in lights is already known. Thus, EP 2 208 926 A1 describes a light-emitting module with an LED assembly and a housing having a housing jacket, wherein the housing is combined with a cooling part and wherein the LED lighting means is arranged on the cooling part. The housing shell is formed like a chimney and arranged above an annular, subdivided by cooling fins of the cooling part opening through which air can be sucked in below the bulb, which then flows out of the housing above the bulb again.
One of the disadvantages of this light-emitting module is that a good ventilation or flow radially through the housing or the housing shell is made difficult by the flat cooling fins, especially in inclined position of the lamp module. In addition, it is disadvantageous that the wing-like cooling fins require a considerable volume and extend far beyond the reflector, which is a hindrance to a compact design.
The object of the invention is to propose a lighting device, which does not have the disadvantages of the prior art. In particular, should be done by means of natural convection effective cooling of the lighting device.
According to the invention the object is achieved by a lighting device according to the characterizing part of claim 1.
One of the advantages of the invention is that the heat loss of the light source is dissipated on the one hand via the cams to the housing and on the other hand to air flowing through the channels. The chimney-like design of the housing causes a reinforcement of the air flow or convection, which is also referred to here as a chimney effect. This cooling effect is supported by the fact that heat loss is transmitted directly to the housing in the area of the contact surfaces.
Another advantage of the invention is that the inventive design of the lighting device in different positions or positions is effective because a congestion of air is prevented by the chimney effect not only in the longitudinal direction of the housing but also in the front and rear of the Housing acts.
Advantageous developments of the invention are specified in the dependent claims.
In one embodiment of the invention, the light source is designed as an LED module with at least one LED and attached to the end wall.
One of the advantages of the invention is that a light source with a long life and advantageous light properties in a particularly compact design with the acting as a carrier module end wall of the heat spreader is directly connected.
In another embodiment of the invention, a plurality of heat distribution elements, which are designed as cooling pins and / or cooling fins, are arranged on the end wall opposite the light source.
One of the advantages of the invention is that light-specific, a corresponding heat spreader can be selected or produced, wherein cooling pins and / or cooling fins enhance the heat distribution to the ambient air.
In a further embodiment of the invention, the end wall has at least one radially inwardly directed channel which opens into at least one orifice in the end wall, wherein the mouth is preferably arranged approximately centrally in the end wall.
One of the advantages of the invention is that the removal of heat loss through air thereby improves and the formation of heat build-up is prevented.
In one embodiment of the invention, the reflector protrudes into the tub and / or the reflector protrudes at least partially into the housing.
One of the advantages of the invention is that the lighting device can be realized in a compact design, wherein the cooling of the lamp or the dissipation of heat loss is still efficient. The chimney effect described is always guaranteed.
In another embodiment of the invention, each cam has a width b which is related to an imaginary outer average diameter D of the tub in such a way that effective heat loss of the lamp via the cams to the housing and to air flowing through the channels can be dissipated, so that both effects are advantageously combined.
In a further embodiment of the invention, the jacket and / or the end wall is perforated at least in places.
One of the advantages of the invention is that by means of holes, holes, a reinforced convection can be achieved.
In one embodiment of the invention, the housing is connected by pressing and / or joining and / or Kaltdehn- and / or Eindehn- and / or adhesive bond with the heat spreader.
One of the advantages of the invention is that in particular the heat transfer from the heat spreader to the housing is increased by said type of connection.
In another embodiment of the invention, the reflector has a light exit opening whose outer opening edge is spaced at least in places from the housing.
One of the advantages of the invention is that the natural air flow is promoted in the housing in different mounting positions of the lighting device by inflow and / or outflow of air.
In a further embodiment of the invention, the heat spreader made of light metal, in particular aluminum, is formed. The heat spreader with trough, cam and / or Wärmeverteilelementen can be produced by die-casting. A reworking of the die-cast heat spreader, in particular the end wall, cams, bores and / or heat-conducting elements is possible with known processing methods. The heat spreader can also be subsequently surface treated for improved heat conduction.
One of the advantages of the invention is that the housing may be formed of a metal or non-metallic material, so a broad scope in the choice of housing shapes and / or housing materials is possible, with always an effective heat dissipation is ensured by the heat spreader ,
In the following preferred embodiments of the invention will be explained in more detail with reference to figures. <Tb> FIG. 1 <sep> shows in an exploded, simplified representation of a half section of the lighting device according to the invention, with housing, with reflector and with heat distributor, on which a lighting means is arranged; <Tb> FIG. 2 <sep> shows the heat spreader with illuminant arranged thereon of the lighting device according to the invention in a plan view; <Tb> FIG. Fig. 3 <sep> shows a longitudinal section of the heat spreader along the section line III-III shown in Fig. 2; <Tb> FIG. Fig. 4 shows a perspective view of the lighting device 1 according to the invention, the rear or rear part of the housing being shown broken off; <Tb> FIG. 5 shows a side view of a composite lighting device according to the invention, with a view of the housing; <Tb> FIG. 6 and 7 <sep> show a sectional view of a lighting device according to the invention, wherein the elongated arrows illustrate the natural convection and the wider arrows illustrate the heat transfer from the heat spreader to the housing; <Tb> FIG. FIG. 8 shows a plan view of the rear side of the lighting device according to the invention with the respective sectional lines X-X, Xl-Xl and Xll-Xll and FIG <Tb> FIG. Figures 9, 10 and 11 show in a simplified representation one half-section along the lines of intersection of Figure 8, the elongated arrows illustrating natural convection and the wider arrows illustrating heat transfer from the heat spreader to the housing.
1 illustrates an exploded, simplified illustration of a half section of the luminous device 1 according to the invention, with a luminous means 40, a heat distributor 20 connected thereto, a housing 10 connected to the heat distributor 20, and a reflector 30.
The heat spreader 20 preferably has a trough 201 with a jacket 203 and an end wall 205, wherein the light source 40 rests against the end wall 205. The jacket 203 and / or the end wall 205 may be broken at least in places. The heat spreader 20 can also be designed as a support wall 205 with cams 207 arranged on it. The support wall 205, or end wall, can be offset from holes which form the channels 209, in order to allow good ventilation. The light-emitting means 40 mounted on the support wall conducts its heat loss to the support wall 205. Due to the thermal coupling of the support wall via the cams to the housing 10, this heat loss is at least partially released to the housing. Another part of the heat loss is given by convection to the ambient air.
The shell 203 of the trough 201 has two mutually remote shell ends 2031,2032 and outwardly projecting cams 207, wherein between the cams 207 continuous from one to the other shell end 2031,2032 extending channels 209 are present. In the assembled state of the lighting device, which is also referred to as a light, the housing 10 abuts against the cam 207. The contact surfaces are simplified and not to scale denoted by reference numeral 11.
The heat loss of the light source 40 is dissipated on the one hand via the cam 207 to the housing 10 and on the other hand to the air flowing through the channels 209. The chimney-like configuration of the housing 10 causes an amplification of the air flow or convection. This cooling effect is assisted by the fact that heat loss is transmitted directly to the housing 10 in the region of the abutment surfaces 11.
When lamps arise in the energy conversion into light depending on the efficiency losses of various kinds. The sum of the lost energy is understood as heat loss. The light-emitting means 40 is preferably designed as an LED module with at least one LED and attached to the end wall 205. By means of heat conduction, such as thermal grease, an effective heat transfer from the lamp to the heat spreader 20 can be achieved.
Fig. 2 illustrates the heat spreader 20 with arranged thereon illuminant 40 of the inventive lighting device 1 in a plan view. Each cam 207 has a width b, which is to an imaginary outer average diameter D of the trough 201 in the ratio of 1/64 to 1/4, preferably in the ratio of 1/32 to 1/8, particularly preferably in the ratio 1/16 , The part of the housing on which the cams 207 abut, may be parallel or inclined to a central axis, not shown, of the housing.
Fig. 3 illustrates a longitudinal section of the heat spreader along the section line III-III shown in Fig. 2. The sheath 203 and / or the end wall 205 may be perforated at least in places to assist in convection. For better distribution of heat loss, a plurality of heat distribution elements 211, which are designed as cooling pins and / or cooling ribs, can be arranged on the end wall 205, opposite the light source 40. In the embodiment shown, the heat distribution elements 211 do not directly contact the housing 10, which, however, can be realized by suitable design measures.
Reference numeral 2050 designates a channel, bore or opening. The end wall 205 has at least one such radially inwardly directed channel 2050. This opens into an approximately central mouth 2051 in the end wall 205 to improve the dissipation of heat loss by air. This prevents heat accumulation on the bottom of the end wall and promotes convection. For example, there may be a plurality of channels in a star-like manner, each channel opening into a single central mouth and / or into a channel-specific mouth. Reference numerals 2031 and 2032 designate mutually remote shell ends.
Fig. 4 illustrates a perspective view of the inventive lighting device 1, wherein the rear or rear part of the housing is shown broken off, so that the Wärmeableitelemente 211, which are formed as pins, can be seen. The reference numeral 2050 designates a channel which opens into the approximately central mouth 2051.
Fig. 5 illustrates a side view of a composite inventive lighting device 1, with a view of the housing 10. The shell of the housing 10 has a plurality of ventilation openings, which support the convection in the housing. Depending on the position of the lighting device, they serve as suction openings or inlet openings and / or outlet openings.
6 and 7 illustrate a sectional view of an inventive lighting device 1, wherein the elongated arrows K illustrate the natural convection and the wider arrows W heat transfer from the heat spreader 20 to the housing 10.
From the figures it can be seen that the reflector 30 has a light exit opening 301, the outer opening edge 303 is spaced at least in places from the housing 10, so that an opening, a gap or passage is present. By incoming and / or outflow of air, the natural air flow in the housing 10 is promoted in different mounting positions of the lighting device.
Fig. 7, reference numeral 304, a diaphragm, which is arranged between the opening edge 303 of the reflector and the housing. The reflector has a reflector edge 305, in the outer region of the aperture 304 is arranged. The reflector edge 305 is also referred to as a collar or flange and may have a planar extension. Both the aperture 304, as well as the reflector edge 305 may at least in places as through holes, slots or the like formed openings, which serve to assist the ventilation of the housing and the dissipation of heat loss.
Fig. 8 illustrates a plan view of the back of the inventive lighting device 1 with the respective section lines X-X, Xl-Xl and Xll-Xll.
Fig. 9, 10 and 11illustrate in a simplified representation each half section along the section lines of Fig. 8 shown cutting lines, wherein the elongated arrows K natural convection in or through the housing 10 and the wider arrows W heat transfer from the heat spreader 20 illustrate the housing 10.
In order to ensure a good ventilation or air flow through the housing 10, a plurality of openings 110 are present on the casing of the housing 10. These are, for example, designed as elongated or rectangular holes. As opening 110 also the front and rear opening on the housing 10 are understood.
Denoted by reference numeral 1100 is a gap or opening between the aperture of the reflector and the housing, which extends at least partially along the inner circumference of the housing in this area. The gap allows as shown that the designated by arrow K air can flow through this gap in the housing.
In Fig. 9, reference numeral n denotes the length of a cam, that is cam length. The cam length of the lighting device according to the invention can be related to the average diameter D, which is shown in FIG. Hereinafter, the ratio between n and D is in the range of 2/1 to 1/120, preferably in the range of 1/2 to 1/80, more preferably in the range of 1/2 to 1/10.
The natural convection in the housing can be supported by an electrically operated, not shown here fan. The fan can be temperature-controlled.
In the illustrated embodiment of the inventive lighting device, which is also referred to as a lamp, the housing is divided into several parts or partial lateral surfaces - here in a rear part 120 and a front part 130. The terms "front" and "back" are understood with respect to the arrangement of the bulb.
The respective parts are conical or designed as a blunt cone. However, the housing shape is not limited to this embodiment, but may consist of a conical part and / or a cylindrical part. The cross-sectional area with respect to a section perpendicular to the longitudinal axis of the housing may be round and / or polygonal.
The cams may extend over the end wall into the region of the possibly existing heat dissipation elements. The cams may be formed as a part of the housing, wherein a portion of the cam at least in places on the rear housing part 120 and / or front housing part 130 bear or are connected thereto.
Reference numeral Legend
[0049] <tb> 1 <sep> Lighting unit, lighting equipment <Tb> 10 <sep> Housing <tb> 11 <sep> abutment area, abutment area <tb> 100 <sep> rib, bridge, cooling fin <Tb> 110 <sep> housing opening <tb> 1100 <sep> gap, opening, gap <Tb> 120 <sep> housing part <Tb> 130 <sep> housing part <tb> 20 <sep> heat spreader, heat sink <Tb> 201 <sep> Bathtub <Tb> 203 <sep> coat <Tb> 2031 <sep> coat finish <Tb> 2032 <sep> coat finish <Tb> 205 <sep> end wall <tb> 2050 <sep> channel, bore <Tb> 2051 <sep> mouth <tb> 207 <sep> Cam, Rib <tb> 209 <sep> channel, groove <Tb> 211 <sep> The thermal transfer member <Tb> 30 <sep> Reflector <Tb> 301 <sep> light exit opening <Tb> 303 <sep> opening edge <Tb> 304 <sep> Aperture <tb> 305 <sep> Reflective edge, flange, collar <tb> 40 <sep> bulbs, LED module <tb> b <sep> width, cam width <Tb> D <sep> diameter <Tb> K <sep> Arrow <tb> n <sep> length, cam length <Tb> W <sep> Arrow

Claims (12)

  1. A light-emitting device (1), comprising a light source (40), a heat spreader (20) connected thereto, a housing (10) connected to the heat spreader (20), and a reflector (30), characterized in that the heat distributor (20) has a trough (201) with a jacket (203) and an end wall (205), the lighting means (40) resting against the end wall (205), in that the jacket (203) of the trough (201) has two mutually remote jacket ends (2031, 2032) and outwardly projecting cams (207), in that there are continuous channels (209) running between the cams (207) from one end to the other of the mantle (2031, 2032) and that the housing (10) bears against the cams (207) in order to dissipate heat loss of the luminous means via the cams to the housing and to discharge air flowing through the channels.
  2. Second lighting device (1) according to one of the preceding claims, characterized in that the lighting means (40) is designed as an LED module with at least one LED and is attached to the end wall (205).
  3. 3. lighting device (1) according to one of the preceding claims, characterized in that on the end wall (205) opposite to the light source (40) a plurality of heat distribution elements (211), which are designed as cooling pins and / or cooling fins arranged.
  4. 4. lighting device (1) according to one of the preceding claims, characterized in that the end wall (205) has at least one radially inwardly directed channel (2050) which opens into at least one orifice (2051) in the end wall (205) to improve the dissipation of heat loss by air.
  5. 5. lighting device (1) according to one of the preceding claims, characterized in that the reflector (30) protrudes into the trough (201).
  6. 6. lighting device (1) according to one of the preceding claims, characterized in that the reflector (30) at least partially protrudes into the housing (10).
  7. 7. lighting device (1) according to one of the preceding claims, characterized in that each cam (207) has a width b, which corresponds to an imaginary outer average diameter D of the trough (201) in the ratio of 1/64 to 1/4, preferably in the ratio of 1/32 to 1/8, particularly preferably in the ratio of 1/16.
  8. 8. lighting device (1) according to one of the preceding claims, characterized in that the jacket (203) and / or the end wall (205) are at least partially broken.
  9. 9. lighting device (1) according to one of the preceding claims, characterized in that the housing (10) by pressing and / or joining and / or cold expansion and / or Eindehn- and / or adhesive bond with the heat spreader (20) is.
  10. 10. lighting device (1) according to one of the preceding claims, characterized in that the reflector (30) has a light exit opening (301) whose outer opening edge (303) at least in places spaced from the housing (10), such that by a or outflow of air, the natural air flow in the housing (10) is promoted.
  11. 11. lighting device (1) according to one of the preceding claims, characterized in that the heat spreader (20) made of light metal, in particular aluminum, is formed.
  12. 12. Lighting device (1) according to one of the preceding claims, characterized in that the heat spreader (20) can be produced by die-casting.
CH00304/11A 2011-02-22 2011-02-22 Lighting apparatus to heat spreader. CH704544A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH00304/11A CH704544A1 (en) 2011-02-22 2011-02-22 Lighting apparatus to heat spreader.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00304/11A CH704544A1 (en) 2011-02-22 2011-02-22 Lighting apparatus to heat spreader.
EP12155711.0A EP2492589B1 (en) 2011-02-22 2012-02-16 Lighting device with heat distributor

Publications (1)

Publication Number Publication Date
CH704544A1 true CH704544A1 (en) 2012-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH00304/11A CH704544A1 (en) 2011-02-22 2011-02-22 Lighting apparatus to heat spreader.

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EP (1) EP2492589B1 (en)
CH (1) CH704544A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2517064B (en) * 2013-06-14 2020-04-15 Aurora Ltd Improved lighting unit
CN104180352B (en) * 2013-05-24 2017-06-06 深圳市海洋王照明工程有限公司 Large-power lamp
WO2015133196A1 (en) * 2014-03-03 2015-09-11 株式会社アイ・ライティング・システム Lighting device and led light source unit
JP5897744B2 (en) * 2015-02-20 2016-03-30 株式会社アイ・ライティング・システム Lighting apparatus and LED light source unit

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DE202008006325U1 (en) * 2007-11-28 2008-07-17 Cooler Master Co., Ltd., Chung-Ho City Heat dissipation arrangement and lamp with this
DE202008006327U1 (en) * 2007-12-04 2008-07-17 Cooler Master Co., Ltd., Chung-Ho City Lamp with heat build-up and associated lamp cover
WO2010066841A1 (en) * 2008-12-11 2010-06-17 Ledned Holding B.V. Led lamp system
US20100237760A1 (en) * 2009-03-17 2010-09-23 Intematix Corporation LED Based Lamp

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US7766512B2 (en) * 2006-08-11 2010-08-03 Enertron, Inc. LED light in sealed fixture with heat transfer agent
KR100902631B1 (en) * 2008-10-24 2009-06-12 현대통신 주식회사 Circle type led lighting flood lamp using nano spreader
DE202009000699U1 (en) 2009-01-16 2009-03-26 Rd System-Leuchten Ag Bulb module with an LED assembly

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Publication number Priority date Publication date Assignee Title
DE202008006325U1 (en) * 2007-11-28 2008-07-17 Cooler Master Co., Ltd., Chung-Ho City Heat dissipation arrangement and lamp with this
DE202008006327U1 (en) * 2007-12-04 2008-07-17 Cooler Master Co., Ltd., Chung-Ho City Lamp with heat build-up and associated lamp cover
WO2010066841A1 (en) * 2008-12-11 2010-06-17 Ledned Holding B.V. Led lamp system
US20100237760A1 (en) * 2009-03-17 2010-09-23 Intematix Corporation LED Based Lamp

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Publication number Publication date
EP2492589B1 (en) 2016-04-27
EP2492589A1 (en) 2012-08-29

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