CN100468609C - Super heat-conductive pipe lamp - Google Patents

Super heat-conductive pipe lamp Download PDF

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Publication number
CN100468609C
CN100468609C CNB011457333A CN01145733A CN100468609C CN 100468609 C CN100468609 C CN 100468609C CN B011457333 A CNB011457333 A CN B011457333A CN 01145733 A CN01145733 A CN 01145733A CN 100468609 C CN100468609 C CN 100468609C
Authority
CN
China
Prior art keywords
heat
conductive pipe
super heat
light
lamp
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.)
Expired - Fee Related
Application number
CNB011457333A
Other languages
Chinese (zh)
Other versions
CN1359137A (en
Inventor
葛世潮
黄晞
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.)
Zhejiang Manelux Lighting Co Ltd
Original Assignee
HANGZHOU FUYANG NOVEL ELECTRONICS CO Ltd
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 HANGZHOU FUYANG NOVEL ELECTRONICS CO Ltd filed Critical HANGZHOU FUYANG NOVEL ELECTRONICS CO Ltd
Priority to CNB011457333A priority Critical patent/CN100468609C/en
Publication of CN1359137A publication Critical patent/CN1359137A/en
Priority to EP02790249A priority patent/EP1467414A4/en
Priority to KR1020097019923A priority patent/KR100991827B1/en
Priority to KR1020047010358A priority patent/KR100991830B1/en
Priority to KR1020097019925A priority patent/KR20090115810A/en
Priority to CNB028261275A priority patent/CN100373638C/en
Priority to US10/500,315 priority patent/US7497596B2/en
Priority to PCT/CN2002/000930 priority patent/WO2003056636A1/en
Priority to KR1020097019924A priority patent/KR100991829B1/en
Priority to AU2002367196A priority patent/AU2002367196A1/en
Priority to JP2003557050A priority patent/JP2005513815A/en
Priority to US11/430,914 priority patent/US7347589B2/en
Priority to US12/265,911 priority patent/US7736027B2/en
Application granted granted Critical
Publication of CN100468609C publication Critical patent/CN100468609C/en
Priority to JP2009241098A priority patent/JP2010050472A/en
Priority to JP2009241101A priority patent/JP2010050473A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The present invention relates to a heat superconducting tube lamp, including a luminou device, for example, at least a hot-cathode or cold-cathode fluorescent light tube or at least a light-emitting diode, a light transmission bulb shell, a driver and its shell and an electric connector, also including at least one heat superconducitng tube, the luminous device is positioned on the surface of heat-absorbing end of the heat superconducting tube or near by it and a heat abstrator which is tightly and thermally contacted with heat-releasing end of heat superconducting tube, and the described heat superconducting tube can effectively pump out the heat quantity from luminous device and make the heat quantity pass through the heat abatractor to diserse so as to make luminous device work at low temp. It can be made into high-power high-efficiency and long-life lamp.

Description

Super heat-conductive pipe lamp
[technical field]
The present invention relates to be that a kind of bulb-shaped is high-power, high efficiency, long-life hot cathode or cold-cathode fluorescence lamp and LED light lamp, can directly replace tungsten lamp and compact fluorescent lamp, be used for illumination, traffic lights and display etc.
[background technology]
At present, the bulb-shaped high-power fluorescent lamp and the LED light lamp of prior art, 80% input power will be transformed into heat energy owing to have an appointment, and main heat is from fluorescent tube and LED core, the fluorescent tube of bulb-shaped lamp and tube core are sealed in the cell-shell, and heat is difficult to disperse effectively, thereby cause the temperature of fluorescent tube and tube core too high, the luminous efficiency and the life-span of lamp are seriously descended, promptly be difficult to make powerful bulb-shaped, high efficiency, long-life lamp.
[summary of the invention]
The objective of the invention is to overcome the deficiency of above-mentioned existence, and provide a kind of high-power bulb shape that can be made into, high efficiency, long-life hot cathode or cold-cathode fluorescence lamp and LED light lamp etc., it comprises a light-emitting device, a printing opacity cell-shell, driver and shell thereof, an arrangements of electric connection, it also includes at least one super heat-conductive pipe, light-emitting device be positioned on the surface of heat absorbing end of super heat-conductive pipe or near, and the radiating end hot link of super heat-conductive pipe is on a heat abstractor, and the heat that described super heat-conductive pipe can produce fluorescent tube and tube core be extracted out effectively and disperse through heat abstractor.
Described light-emitting device is at least one hot cathode or cold cathode fluorescent tube, or at least one light-emitting diode.
Described hot cathode or cold cathode fluorescent tube are shapes such as spirality, " U " shape, many " U " shape.
Described super heat-conductive pipe comprises vacuum-packed, as to be shaped as tubulose or other a geometry metal tube, the liquid-adsorption layer that mesh-like or other geometry are arranged on its inwall can make the operation material that condenses at radiating end turn back to heat absorbing end by the capillary force effect of liquid-adsorption layer: to be filled with in the pipe as operation materials such as water, methyl alcohol, acetone.
Described super heat-conductive pipe is the super heat-conductive pipe of gravity super heat-conductive pipe or steel-other types such as water super heat-conductive pipe.
Described heat abstractor mainly is shaped as favourable heat radiation geometries such as radiation shape, stacked shape or spirality by at least one fin constitutes, and heat abstractor also can have heat dissipating housing.
Described light-emitting device is at least one LED core, it be installed on the surface with the super heat-conductive pipe heat absorbing end or near, for example be installed in the reflecting surface or reverberation bowl on heat pipe (heat pipe is made with the highly heat-conductive material) outer surface of at least one and the thermo-contact of super heat-conductive pipe heat absorbing end close thermal, around the LED core high index of refraction light transmission medium is arranged, as epoxy resin; Between high thermal conductivity pipe and the super heat-conductive pipe heat-conducting glue can be arranged, when a plurality of LED core was arranged, each tube core is series, parallel or connection in series-parallel on demand.
Described a plurality of LED core can be identical illuminant colour or different colors.
Described heat pipe can be at least one becket, the becket outer surface is reflecting surface or at least one reverberation bowl is arranged, at least one LED core is arranged on the reflecting surface or in the reverberation bowl, between each becket, between ring and the super heat-conductive pipe heat conductive insulating layer that is made of the heat-conducting glue that contains little bead or insulating material is arranged, also available at least one insulation rib insulation between each becket and the super heat-conductive pipe wall.
Described printing opacity cell-shell can be transparent, painted or scattering, on its inner surface luminescent powder and protective layer thereof can be arranged, and luminescent powder can absorb the light-emitting diode issued light, launches the light of required different wave length, to obtain the output light of required look or colour temperature.
Super heat-conductive pipe lamp of the present invention, utilize the superior heat conductivity of super heat-conductive pipe, the heat that can produce light-emitting device is effectively extracted concurrent dissipating out by sealing in the cell-shell, make light-emitting device work in lower temperature, it is compared with the lamp of prior art, has advantages such as power is big, efficient is high, the life-span is long.
[description of drawings]
Fig. 1 is the principle schematic of super heat-conductive pipe lamp of the present invention.
Fig. 2 is the structural representation of the embodiment of thermic cathode fluorimetric super heat-conductive pipe lamp of the present invention.
Fig. 3 is the structural representation of the embodiment of cold-cathode fluorescent super heat-conductive pipe lamp of the present invention.
Fig. 4 is the structural representation of the embodiment of light-emitting diode super heat-conductive pipe lamp of the present invention.
Fig. 5 is the structural representation that the LED core of light-emitting diode super heat-conductive pipe lamp shown in Figure 4 is installed embodiment.
Fig. 6 is the schematic diagram of embodiment of the another mounting structure of LED core of light-emitting diode super heat-conductive pipe lamp shown in Figure 4.
[embodiment]
The present invention will be described in detail below in conjunction with accompanying drawing: the principle schematic that Figure 1 shows that super heat-conductive pipe lamp of the present invention.Include 4, one drivers of 1, one printing opacity cell-shell of a light-emitting device and shell thereof among Fig. 1, an arrangements of electric connection.Light-emitting device 1 can be at least one hot cathode or cathode fluorescent tube, at least one LED core or other light emitting source; Has a super heat-conductive pipe 2 at least, wherein 2a is its heat absorbing end, and light-emitting device 1 is on this heat absorbing end 2a or near it, and the radiating end 2b of super heat-conductive pipe links to each other with heat abstractor 3, include fin 3a in the heat abstractor, the heat that super heat-conductive pipe 2 is released can be dispersed through heat abstractor 3 effectively.Because super heat-conductive pipe 2 has than the high super-high heat-conductive ability more than 1500 times of copper, thereby the heat that it can be produced light-emitting device 1 is effectively extracted out, disengage and disperse by radiating end 2b through heat abstractor 3, thereby make light-emitting device be in low working temperature, the lamp of, high efficiency high-power, long-life bulb-shaped to make.Described super heat-conductive pipe 2 can be a vacuum-packed thin metallic tubd, for example nickel, copper, aluminium, alloy, stainless steel tube etc., operation materials such as interior Feng Youshui, methyl alcohol, acetone, the liquid-adsorption layer that mesh-like or other geometry are arranged on the tube wall can make the operation material that condenses at radiating end turn back to heat absorbing end by the capillary force effect of liquid-adsorption layer.The shape of described super heat-conductive pipe 2 can be tubulose, plate shaped or other geometry.Described super heat-conductive pipe 2 also can be the super heat-conductive pipe of other form, for example gravity super heat-conductive pipe, steel-water super heat-conductive pipe etc.The one side of the nearly light-emitting device 1 of super heat-conductive pipe 2 is high reflectance face 2c, and the light so that reflection is sent out by light-emitting device improves light utilization efficiency.Printing opacity cell-shell 4 among Fig. 1 can be a cell-shell transparent, painted or scattering, is made by glass or plastics material; Its shape can be the different shape of bulb.The drive circuit 5 that also has light-emitting device among the figure, shell 6, the arrangements of electric connection 7 of lamp for example is a lamp holder.The input of drive circuit 58 links to each other with external power with lamp holder 7 through going between, and its output 9 links to each other with light-emitting device 1 through going between, and is used to light light-emitting device 1.
Fig. 2 makes the structural representation of super heat-conductive pipe lamp of the embodiment of light-emitting device with thermal cathode fluorescent tube for the present invention.Include at least one thermic cathode fluorimetric pipe 10 among Fig. 2, for example be spirality, " U " shape, many " fluorescent tubes such as U ＂ shape, H shape, it be positioned at super heat-conductive pipe 2 around; Filament hot cathode 11 is arranged in the fluorescent tube.All the other digital meanings are identical to those shown in Fig. 1 among Fig. 2.
Fig. 3 is the present invention's structural representation of cathode fluorescent tube as the super heat-conductive pipe lamp of the embodiment of light-emitting device.Include at least one cathode fluorescent tube 12 among Fig. 3, it is shaped as spirality or many " U " etc., it be positioned at super heat-conductive pipe 2 around; Described super heat-conductive pipe 2 is at least one super heat-conductive pipe, for example can be 2 or 3, as shown in Figure 3.For strengthening the heat-sinking capability of heat abstractor 3, except radiator shutter 3a is arranged, also heat dissipating housing 3b can be arranged.Described cell-shell 4 can be the reflection bubble of R type, and it is latter half of reflectance coating 13.For improving the mechanical strength of fluorescent tube, available glue 14 is fixed between fluorescent tube and the super heat-conductive pipe 2.Other digital meanings are identical to those shown in Fig. 1 among Fig. 3.
Fig. 4 makes the structural representation of super heat-conductive pipe lamp of the embodiment of light-emitting device with light-emitting diode for the present invention.Include at least one LED core 15 among Fig. 4, it be installed on the surface of heat absorbing end of super heat-conductive pipe 2 or near, the heat that its produces can directly be absorbed by super heat-conductive pipe, disperses through the radiating end 2b and the heat abstractor 3 of super heat-conductive pipe.Thereby can make that light-emitting diode works in that lower temperature is high-power to make, high efficiency, long-life LED.At least one LED core 15 among Fig. 4 can be identical illuminant colour or different colors, thereby obtains the light output of different and different-colour.Printing opacity cell-shell 4 shown in Fig. 4 can be transparent, painted or scattering; luminous bisque 17 and protective layer 18 thereof also can be arranged on its inner surface; luminescent powder 17 can absorb the light-emitting diode issued light and launch the light of required different wave length, to obtain the output light of required look or colour temperature.For example, light-emitting diode blue light-emitting or ultraviolet light, luminescent powder 17 can absorb blue light or ultraviolet light and send the light of gold-tinted, white light or other heavy rain looks.
Figure 5 shows that the structural representation of the embodiment that LED core is installed among Fig. 4.The tube wall 19 of the thin metallic tubd of super heat-conductive pipe is arranged in shown in Figure 5, mesh-like liquid-adsorption layer 20 is arranged on this inner surface of tube wall; The high heat conductance pipe 21 of LED core 15 is installed in addition in addition, for example be copper, silver or aluminum pipe etc., it closely contacts with super heat-conductive pipe, between the two heat-conducting glue 23 can be arranged, its outer surface is a high reflectance face 24, for example silver or aluminium etc.: for making the effective outgoing of LED core issued light, the appearance of high heat conductance pipe 21 and at least one reverberation bowl 25 can be arranged, LED core 15 is installed in the reverberation bowl.For the LED core that substrate insulation, positive and negative lead wires are all drawn from the tube core end face, described heat pipe 21 can be an integral body, and need not to insulate with super heat-conductive pipe.Tie line 26 is arranged, series, parallel and the connection in series-parallel mutually on demand of each tube core between each tube core.Also have light transmission medium 27 around the tube core, epoxy resin for example, it can be transparent, painted or diffusion.Its end face 28 can be curved surface or plane, penetrates in order to the road of LED core issued light, improves light utilization efficiency.
Fig. 6 is the structural representation of the another embodiment that LED core is installed among Fig. 4.The high heat conductivity metal pipe that LED core is installed among Fig. 6 is divided at least two sections, i.e. at least two beckets 29 are between each ring, have the heat conductive insulating layer or contain little bead or insulating material 30 and heat-conducting glue 22 between ring and the super heat-conductive pipe wall 19.Also available at least one insulation rib 30a insulation between becket 29 and the super heat-conductive pipe wall 19, as shown in Figure 7, Fig. 7 is the structural representation of cross section A-A shown in Figure 6, other digital meanings are with identical shown in Fig. 6 among Fig. 7.The appearance of described becket 29 is high reflection layer 24, for example silver or aluminium etc.On each ring at least one reverberation bowl 25 is arranged, in each bowl at least one LED core 15 is arranged.The example of drawing from the end face and the bottom surface of tube core respectively for the both positive and negative polarity of LED core shown in Fig. 6.The negative pole (or anodal) that is each tube core on the same ring 29 links mutually, and its positive pole (or negative pole) then links to each other with adjacent ring separately, and shown among Fig. 6 31, each tube core on the promptly same ring is parallel with one another, series connection mutually between each ring.
Described LED core can be on demand with other different mounting means, and for example becket 29 can be a bonding jumper, sticks on super heat-conductive pipe surface etc. by heat conductive insulating layer 22.
Each embodiment that the scope of protection of present invention is not limited to introduce herein, the know-how that relates to is that the general personnel of this specialty are familiar with.Therefore as long as understand content of the present invention, can do various forms of conversion and replacement.

Claims (10)

1, a kind of super heat-conductive pipe lamp, it comprises a light-emitting device, printing opacity cell-shell, driver and shell thereof, an arrangements of electric connection, it is characterized in that it also includes at least one super heat-conductive pipe (2), light-emitting device (1) be positioned on the surface of heat absorbing end (2a) of super heat-conductive pipe (2) or near, radiating end of super heat-conductive pipe (2b) and heat abstractor (3) hot link.
2, super heat-conductive pipe lamp as claimed in claim 1 is characterized in that described light-emitting device (1) is at least one hot cathode or cold cathode fluorescent tube, or at least one LED core.
3, super heat-conductive pipe lamp as claimed in claim 2 is characterized in that described hot cathode or cold cathode fluorescent tube are spirality, " U " shape or many " U " shape.
4, super heat-conductive pipe lamp as claimed in claim 1 is characterized in that described super heat-conductive pipe (2) comprises vacuum-packed, as to be shaped as a tubulose thin metallic tubd (9), has the liquid-adsorption layer (20) of mesh-like on its inwall; Be filled with operation material in the pipe.
5, super heat-conductive pipe lamp as claimed in claim 1 is characterized in that described super heat-conductive pipe (2) is gravity super heat-conductive pipe or steel-water super heat-conductive pipe.
6, super heat-conductive pipe lamp as claimed in claim 1 is characterized in that described heat abstractor (3) is shaped as radiation shape, stacked shape or spiral fin (3a) by at least one and constitutes.
7, super heat-conductive pipe lamp as claimed in claim 6 is characterized in that described heat abstractor (3) has heat dissipating housing (3b).
8, super heat-conductive pipe lamp as claimed in claim 2, it is characterized in that described LED core (15) is installed in the reflecting surface or reverberation bowl (25) on the heat abstractor (3) that is made of heat pipe (21) with super heat-conductive pipe heat absorbing end (2a) thermo-contact, around the LED core light transmission medium (27) is arranged, between heat pipe (21) and the super heat-conductive pipe (2) heat-conducting glue (23) is arranged.
9, super heat-conductive pipe lamp as claimed in claim 8, it is characterized in that described heat pipe (21) is at least one becket (29), the becket outer surface is reflecting surface or at least one reverberation bowl (25), at least one LED core (15) is arranged, between each becket (29), the heat conductive insulating layer (22) that is made of the heat-conducting glue that contains little bead or insulating material (30) arranged between ring and the super heat-conductive pipe (2) in reflecting surface or the reverberation bowl.
10, super heat-conductive pipe lamp as claimed in claim 1; it is characterized in that described printing opacity cell-shell (4) is for transparent, painted or scattering; its inner surface is provided with luminescent powder (17) and protective layer (18) thereof; luminescent powder (17) absorbs the light that the light-emitting diode issued light is launched required different wave length, to obtain the output light of required look or colour temperature.
CNB011457333A 2001-12-29 2001-12-29 Super heat-conductive pipe lamp Expired - Fee Related CN100468609C (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
CNB011457333A CN100468609C (en) 2001-12-29 2001-12-29 Super heat-conductive pipe lamp
KR1020097019924A KR100991829B1 (en) 2001-12-29 2002-12-30 A LED and LED lamp
JP2003557050A JP2005513815A (en) 2001-12-29 2002-12-30 Light emitting diode and light emitting diode lamp
KR1020047010358A KR100991830B1 (en) 2001-12-29 2002-12-30 A LED and LED lamp
KR1020097019925A KR20090115810A (en) 2001-12-29 2002-12-30 A LED and LED lamp
CNB028261275A CN100373638C (en) 2001-12-29 2002-12-30 LED and LED lamp thereof
US10/500,315 US7497596B2 (en) 2001-12-29 2002-12-30 LED and LED lamp
PCT/CN2002/000930 WO2003056636A1 (en) 2001-12-29 2002-12-30 A led and led lamp
EP02790249A EP1467414A4 (en) 2001-12-29 2002-12-30 A led and led lamp
AU2002367196A AU2002367196A1 (en) 2001-12-29 2002-12-30 A led and led lamp
KR1020097019923A KR100991827B1 (en) 2001-12-29 2002-12-30 A LED and LED lamp
US11/430,914 US7347589B2 (en) 2001-12-29 2006-05-10 LED and LED lamp
US12/265,911 US7736027B2 (en) 2001-12-29 2008-11-06 LED and LED lamp
JP2009241098A JP2010050472A (en) 2001-12-29 2009-10-20 Light emitting diode lamp, and light emitting diode traffic light
JP2009241101A JP2010050473A (en) 2001-12-29 2009-10-20 Light emitting diode plane light source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB011457333A CN100468609C (en) 2001-12-29 2001-12-29 Super heat-conductive pipe lamp

Publications (2)

Publication Number Publication Date
CN1359137A CN1359137A (en) 2002-07-17
CN100468609C true CN100468609C (en) 2009-03-11

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Application Number Title Priority Date Filing Date
CNB011457333A Expired - Fee Related CN100468609C (en) 2001-12-29 2001-12-29 Super heat-conductive pipe lamp

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Country Link
CN (1) CN100468609C (en)

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US7972037B2 (en) 2008-11-26 2011-07-05 Deloren E. Anderson High intensity replaceable light emitting diode module and array
JP5330944B2 (en) * 2009-09-18 2013-10-30 パナソニック株式会社 Light emitting device
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RU2444677C2 (en) * 2010-05-04 2012-03-10 Михаил Юрьевич Валенцов Method of making light-emitting diode lamp
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CN102109124B (en) * 2011-03-21 2013-01-23 林峻毅 Combined easily radiating LED down lamp
CN103292190A (en) * 2013-06-18 2013-09-11 上海鼎晖科技有限公司 LED chip U-shaped pipe heat-dissipating energy-saving lamp
CN103545390B (en) * 2013-09-27 2016-08-17 上海晶澳太阳能科技有限公司 Improve rosette casting glue coagulation molding structure of the capacity of heat transmission and preparation method thereof
CN103574368B (en) * 2013-11-12 2015-11-04 无锡天地合同能源管理有限公司 LEDbulb lamp
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