CN202546349U - Light-emitting diode (LED) bulb - Google Patents
Light-emitting diode (LED) bulb Download PDFInfo
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- CN202546349U CN202546349U CN2012200906915U CN201220090691U CN202546349U CN 202546349 U CN202546349 U CN 202546349U CN 2012200906915 U CN2012200906915 U CN 2012200906915U CN 201220090691 U CN201220090691 U CN 201220090691U CN 202546349 U CN202546349 U CN 202546349U
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- led
- led chip
- thermal conductivity
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Abstract
A light-emitting diode (LED) bulb comprises a light-permeable bulb shell, an LED luminous source, a stem, a driving device and an electric connector, wherein the stem is provide with a support pillar, a horn tube, an exhaust tube and electric lead wires, the bulb shell and the stem are sealed in a vacuum mode, low-viscosity high-thermal-conductivity gas is filled in the bulb shell, and the LED luminous source is composed of at least a transparent LED light-emitting bar. The LED light-emitting bar comprises a high-thermal-conductivity transparent tube inserted on the outer surface of the support pillar, at least a string of LED chips and a luminescent powder layer are arranged on the surface of the transparent tube, the chips are in series connection or in series-parallel connection, electric lead wires of chip electrodes are connected with the electric lead wires of the stem, a stem electrical connection wire is connected with the output end of the driving device, the input end of the driving device is connected with the electric connector, and the electric connector is communicated with an external alternating current (AC) or direct current (DC) power supply. The LED bulb has the advantages that thermal resistance between the LED chips and the heat dissipation gas is low, heat dissipation effect is good, an LED bulb with higher luminous flux and higher luminous efficiency can be manufactured, the light-emitting component is firmly fixed, can withstand strong shock, and is high in reliability, and the LED bulb is simple in manufacturing process and low in cost.
Description
Technical field
The utility model relates to a kind of LED bulb, metal heat sink, the manufacture craft that particularly a kind of reliability is high, luminous efficiency is high, output light flux is high, profile is similar with incandescent lamp, need not heaviness is simple, cost is low, the life-span is long, lightweight LED bulb.Alternative incandescent lamp, energy-saving fluorescent lamp etc. are used for illumination.
Background technology
LED bulb described here is meant the distribution LED bulb similar with ordinary incandescent lamp of profile, size and the emergent light of bulb.
The LED bulb of prior art is used discrete LED element mostly, for example surface subsides (SMD), straight cutting LED, straw hat LED etc. are installed on PCB or the Metal Substrate PCB (MPCB), make the LED bulb of incandescent lamp bulb shape again; Like the corn lamp, have the bulb that cell-shell, cell-shell central authorities have a plurality of SMD LED and PCB thereof; For example Chinese patent 02202147.7; 200910250434.6; United States Patent (USP) 7354174; 20100253221; Japan Patent 2008-103112.Wherein corn lamp, volume are big, LED exposes, security and life-span are not good enough; With the lamp of the band cell-shell of SMD LED and PCB, then power is little, luminous efficiency is low, generally is about 60lm/W.
The alternative LED bulb of prior art is with the luminous row culture light source of led chip 4 π bright dippings, and luminous efficiency is high, for example Chinese patent 201010278760.0 and 201010610092.7; The led light source of existing this type lamp assembles with the LED light-emitting section spot welding of 4 π bright dippings of several separations; Said light-emitting section is sealed in the vacuum-packed cell-shell that is filled with low coefficient of viscosity high thermal conductivity gas, for example helium etc., and the heat that produces during LED work is through the convection current and the conduction of said gas, dissipate through cell-shell again; The whole lamp efficiency of this type lamp can be up to more than the 160lm/W; But that the contact area of said light-emitting section and said gas is a heat-conducting area is less, be difficult to make the above high-brightness LED bulb of 1000lm; And not anti-sharp pounding, the solder joint of assembling and spot welding is many, influence cost and reliability.
Summary of the invention
The purpose of the utility model is intended to solve the above-mentioned deficiency that exists in the prior art, and provide that a kind of output light flux is high, reliability is high, luminous efficiency is high, vibration resistance, LED bulb that the simple cost of production technology is low.
The technical scheme of the utility model is following:
The LED bulb that the utility model provides, a kind of LED bulb, it comprises: a printing opacity cell-shell, a LED light emitting source, a stem stem that has pillar, oviduct, blast pipe and electric lead-out wire, a led driver and an electric connector; Said printing opacity cell-shell and stem stem vacuum seal constitute vacuum-packed cell-shell body, are filled with low viscosity high thermal conductivity gas within the said cell-shell body; It is characterized in that said LED light emitting source is made up of at least one transparency LED Column being luminous; Said transparency LED Column being luminous comprises:
One is plugged in said the high thermal conductivity transparent tube on the outer surface of column, on the said high thermal conductivity transparent tube outer surface a string at least led chip and luminous bisque is installed;
Said led chip is connected or connection in series-parallel through electric connection line each other; Total driving voltage of said led chip equals or approaching external AC or DC operating voltage; The electrode of led chip is drawn through the electric lead-out wire of Column being luminous; The electricity lead-out wire is connected with stem stem electricity lead-out wire; The stem stem electric connection line is connected with the output of led driver, and the input of led driver is connected with electric connector, and said electric connector is connected with external AC or DC power supply.Connect external AC or DC power supply, can light the LED bulb.
Said vacuum-packed cell-shell is filled with low viscosity high thermal conductivity gas, for example helium, hydrogen or helium hydrogen gaseous mixture.
Said transparency LED light emitting source includes a high thermal conductivity transparent tube; Its outer surface is equipped with a string at least led chip; Said chip is connected or connection in series-parallel each other; Its total driving voltage is near external AC or DC supply voltage, and its electrode is connected with the electric lead-out wire of stem stem through the electric lead-out wire of transparency LED light emitting source.
The utility model LED bulb is the LED bulb that a kind of radiating effect is better, output light flux is bigger; The high thermal conductivity transparent tube of led chip is installed to be processed by high thermal conductivity crystalline ceramics, glass or plastics; The pillar external diameter of high thermal conductivity transparent tube internal diameter and stem stem matches, and the high thermal conductivity transparent tube is enclosed within on the pillar; Have at least a place to interfix between the two with transparent adhesive tape; High thermal conductivity transparent tube profile is cylindrical, square, multiaspect prismatic or the cylindricality that a plurality of grooves are arranged, and at least one planar section (being used to install led chip and luminous bisque) is arranged on its outer surface; The high thermal conductivity transparent tube is processed by high thermal conductivity materials; And bigger surface area is arranged; The bigger contact-making surface that contacts with low viscosity high thermal conductivity gas is promptly arranged; Promptly reduce the thermal resistance between LED and the heat radiation gas, thereby improved the led chip radiating effect, can be made into LED bulb more high-power, more high light flux.
It is transparent led chip that said led chip can be substrate; Cover the luminous bisque of last layer (the first luminous bisque) on the planar section of high thermal conductivity transparent tube outer surface earlier; Be fixed on led chip on this first luminous bisque with crystal-bonding adhesive then, be electrically connected (being routing) then and cover the luminous hair powder layer of last layer (the second luminous bisque) again; These luminous bisques all can be mixed and made into by luminescent powder and transparent medium, and said transparent medium is organic media or transparent low-melting glasses such as silica type, epoxy resin, plastics.
Said led chip also can be has reflecting layer or opaque led chip on the substrate, at this moment, said led chip directly is fixed on the planar section of high thermal conductivity transparent tube outer surface with crystal-bonding adhesive, is electrically connected then, covers the luminous hair powder layer of last layer again; This luminous bisque is mixed and made into by luminescent powder and transparent medium, and said transparent medium is organic media or transparent low-melting glasses such as silica type, epoxy resin, plastics.
In order to make high thermal conductivity transparent tube and low viscosity gas that bigger contact area arranged, the pillar external diameter of stem stem can be bigger, for example is 4-40mm.
Said high thermal conductivity transparent tube also has the effect of scattered light, can reduce the LED lamp and dazzle light.
The utility model provides a kind of LED bulb of highly reliable, vibration resistance: because led chip is fixed on the high thermal conductivity transparent tube, the high thermal conductivity transparent tube is fixed on the pillar of stem stem, has solid and reliable and anti-sharp pounding advantage.
The utility model provides difform transparency LED light emitting source: the high thermal conductivity transparent tube internal diameter of said transparency LED light emitting source and pillar external diameter coupling are pegged graft; Described high thermal conductivity transparent tube profile is cylindrical, square, multiaspect prismatic or the cylindricality that has a plurality of grooves, and its internal diameter is provided with at least one locating slot.
The led chip of the utility model is the chip of rubescent, blue and green three primary colours; Or chip for sending out primary lights many; Each color chip with varying number can obtain not homochromy output light.
The led chip of the utility model is the chip of blue light-emitting or ultraviolet light, and need the luminous light time of changing white light or other look into, be provided with luminous bisque around the said led chip; In order to obtain required colour temperature and colour rendering index, also can to install additional and glow or the chip of other coloured light.
Electrical connection between the led chip of the utility model is all accomplished on the high thermal conductivity transparent tube, only has the connection between the electric lead-out wire of its electric lead-out wire and stem stem to need spot welding, and technology is simple, is fit to produce in enormous quantities, and reliability is high, cost is low.
The LED bulb of the different profile cell-shell of the utility model body comprises a kind of in A-type, G-type, R-type, BR-shape, PAR-type, T-type, candle type or other the existing Lamp bulb case.
The utility model compared with prior art; Its advantage is: the thermal resistance between led chip and the heat radiation gas is low, radiating effect better, can be made into the more LED bulb of high light flux higher luminous efficiency; The fixation of LED light-emitting component, anti-sharp pounding, reliability height, manufacturing process is simple, cost is low.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the LED bulb of the utility model.
Fig. 2 is the structural representation of an embodiment in the transparency LED Column being luminous cross section of Fig. 1.
Fig. 3 is the structural representation of another embodiment in the transparency LED Column being luminous cross section of Fig. 1.
Wherein: LED bulb 1 LED light emitting source 2 printing opacity cell-shells 3 led drivers 4
Electric connector 5 connectors 6 cell-shell bodies 7 stem stems 8
Column being luminous electrode outlet line 9 electrode outlet line fixture 9a
First electric connection line, 10 high thermal conductivity transparent tube, 11 led chips 12
Pillar external diameter 16 root through holes 17 planar sections 18
The first luminous bisque 19 crystal-bonding adhesives 20 second luminous bisques 21
Groove 22 locating slots 23
The specific embodiment
To combine accompanying drawing that the utility model is described in detail below.
Fig. 1 is the structural representation of an embodiment of the LED bulb of the utility model.
The LED bulb of this embodiment comprises: 2, one of 3, one LED light emitting sources of a printing opacity cell-shell have 8, one led drivers 4 of stem stem and electrical connection 5 devices of pillar 8a, oviduct 8b, blast pipe 8c and electric lead-out wire 8d; Said printing opacity cell-shell 3 constitutes vacuum-packed cell-shell body 7 with stem stem 8 vacuum seals, is filled with low viscosity high thermal conductivity gas within the said cell-shell body 7; Said LED light emitting source 2 is made up of at least one transparency LED Column being luminous; Said transparency LED Column being luminous comprises: a high thermal conductivity transparent tube 11 that is plugged on the said pillar 8a outer surface, said high thermal conductivity transparent tube 11 outer surfaces are provided with a string at least led chip 12 and luminescent layer 13; Said led chip 12 is through electric connection line 14 series connection or connection in series-parallel each other; Total driving voltage of said led chip 12 equals or approaching external outer AC or DC operating voltage; The electric lead-out wire 9 of said Column being luminous 2 is connected with stem stem electricity lead-out wire 8d; Stem stem electric connection line 8d is connected with the output of led driver 4; The input of led driver 4 is connected with electric connector 5; Said electric connector 5 is connected with external AC or DC power supply, connects external power, can light LED Column being luminous 2.
The transparent cell-shell 3 of present embodiment is made up of cell-shell body 7 and stem stem 8 vacuum seals, and the two is processed by identical glass, and said stem stem 8 is made up of oviduct 8a, blast pipe 8b, pillar 8c and electric connection line 8d; Oviduct 8a and cell-shell body 7 are used the high temperature sealing by fusing; Behind the sealing by fusing, vacuumize transparent cell-shell 3, charge into low-viscosity high thermal conductivity gas through blast pipe 8b again through blast pipe 8b; Subsequently blast pipe 8b sealing by fusing, the air seal that charges in transparent cell-shell 3; Low viscosity high thermal conductivity gas can be helium, hydrogen, helium hydrogen gaseous mixture, nitrogen or other gas.
A string at least led chip 12 on high thermal conductivity transparent tube 11 outer surfaces of said transparency LED light emitting source 2, be the chip of blue light-emitting or ultraviolet light, be provided with luminous bisque 13 around the said chip 12, be used for being transformed into the required white light or the light of other look to led chip 12 issued lights; In order to obtain required colour temperature and colour rendering index, also can be added with and to glow and the chip of other coloured light.
Said led chip 12 also can be chips rubescent, blue, green three primary colours, or the chip of many primary colours; Each color chip with varying number can obtain not homochromy output light.
A string at least led chip on said LED light emitting source 2 outer surfaces; Each other by connecting line 14 series connection or connection in series-parallel; Its total driving voltage is near external AC or DC supply voltage, and the electrode outlet line 9 of high thermal conductivity transparent tube 11 is connected with electric lead-out wire 8d on the stem stem 8; Electrical connection between the said led chip 12 is all accomplished on high thermal conductivity transparent tube 11, only has the connection between the electric lead-out wire 8d on its electric lead-out wire 9 and the stem stem to need spot welding, and technology is simple, is fit to produce in enormous quantities, and reliability is high, cost is low.
The high thermal conductivity transparent tube 11 of said installation led chip 12 is processed by high thermal conductivity crystalline ceramics, glass or plastics; Pillar 8a external diameter on the internal diameter of transparent cylindrical pipe 11 and the stem stem 8 matches, and high thermal conductivity transparent tube 11 is enclosed on the pillar 8a; Have at least a place to have transparent adhesive tape 15 to interfix between the two.Said high thermal conductivity transparent tube 11 is processed by high thermal conductivity materials; For bigger and contact area low viscosity high thermal conductivity gas are arranged; Promptly reduce led chip 12 and the thermal resistance of heat radiation between the gas, thereby improved the radiating effect of LED, the pillar 8a on the stem stem 8 can use the bigger glass tube of external diameter 16; Its external diameter is 4-40mm; The nearly blast pipe of said glass tube can have at least one through hole 17 for one section, with the gaseous exchange that lets in the glass tube, thereby can be made into LED bulb more high-power, more high light flux.
Said led chip 12 is fixed on the high thermal conductivity transparent tube 11, and high thermal conductivity transparent tube 11 is fixed on the pillar 8a of stem stem 8, and is solid and reliable, can anti-sharp pounding.
High thermal conductivity transparent tube 11 can be led chip 12 and luminous bisque 13 issued light scatterings, to reduce dazzling light and output light being more evenly distributed of LED lamp for pottery, glass or the plastics of light scattering characteristic are arranged.
A kind of in the A-type that is shaped as of vacuum-packed cell-shell body 7, G-type, R-type, BR-shape, PAR-type, T-type, candle type or other the existing Lamp bulb case.
Fig. 2 is the sketch map of an embodiment of A-A cross section structure of the transparency LED light emitting source 2 of the utility model LED bulb.
High thermal conductivity transparent tube 11 is a cylindrical tube among the figure, and its outer surface has at least one planar section 18, and said planar section 18 is used to settle luminous bisque and led chip.As shown in the figure; On planar section 18, make one deck first luminous bisque 19 earlier; Be fixed on led chip 12 on the first luminous bisque 19 with crystal-bonding adhesive 20 then; Said led chip 12 is the transparent chip of substrate, solidifies the back and is electrically connected each led chip each other, on led chip and electric connection line, covers one deck second luminous bisque 21 again; This first luminous bisque 19 and the second luminous bisque 21 are mixed and made into by luminescent powder and transparent medium, and said transparent medium is organic transparent medium or transparent low-melting glasses such as silica type transparent medium, epoxy resin transparent medium, plastics.Led chip 12 is wrapped up by luminous bisque, and outgoing is photochromic to be evenly distributed.Polygonal square, that have groove that the shape of high thermal conductivity transparent tube 11 also can be, or other shape.Identical among Fig. 2 among the meaning of other digital representative and Fig. 1.
Fig. 3 is the sketch map of another embodiment of the A-A cross section structure of the transparency LED light emitting source 2 of the utility model LED bulb: led chip 12 directly is fixed on the planar section 18 of high thermal conductivity transparent tube 11 with crystal-bonding adhesive 20; With electric connection line 14 a string at least led chip 12 is electrically connected then, covers the luminous bisque 21 of last layer (second) again; Said led chip 12 has the reflecting layer or opaque chip on the substrate; The outer surface of high thermal conductivity transparent tube 11 is the cylinder that has groove 22, and 23 is the locating slot of high thermal conductivity transparent tube 11, positioning and fixing when being used for high thermal conductivity transparent tube 11 making luminescent layers and solid crystalline substance of led chip and routing.Identical among Fig. 3 among the meaning of other digital representative and Fig. 1.
Each embodiment that the utility model requires the scope of protection to be not limited to introduce among this paper, all belongs to the scope that the utility model patent contains at all various forms of conversion of doing based on the utility model claim and description and replacement.
Claims (9)
1. LED bulb, it comprises: a printing opacity cell-shell, a LED light emitting source, a stem stem that has pillar, oviduct, blast pipe and electric lead-out wire, a led driver and an electric connector; Said printing opacity cell-shell and stem stem vacuum seal constitute vacuum-packed cell-shell body, are filled with low viscosity high thermal conductivity gas within the said cell-shell body; It is characterized in that said LED light emitting source is made up of at least one transparency LED Column being luminous; Said transparency LED Column being luminous comprises:
One is plugged in said the high thermal conductivity transparent tube on the outer surface of column, on the said high thermal conductivity transparent tube outer surface a string at least led chip and luminous bisque is installed;
Said led chip is connected or connection in series-parallel through electric connection line each other; Total driving voltage of said led chip equals or approaching external AC or DC operating voltage; The electrode of led chip is drawn through the electric lead-out wire of Column being luminous; The electricity lead-out wire is connected with stem stem electricity lead-out wire; The stem stem electric connection line is connected with the output of led driver, and the input of led driver is connected with electric connector, and said electric connector is connected with external AC or DC power supply.
2. LED bulb according to claim 1 is characterized in that, described high thermal conductivity transparent tube outer surface is provided with at least one planar section, is used to install led chip and luminous bisque.
3. LED bulb according to claim 1 is characterized in that, described pillar external diameter is 4-40mm.
4. LED bulb according to claim 1 is characterized in that, described high thermal conductivity transparent tube internal diameter and pillar external diameter coupling are pegged graft; Described high thermal conductivity transparent tube profile is cylindrical, square, multiaspect prismatic or the cylindricality that has a plurality of grooves, and its internal diameter is provided with at least one locating slot.
5. LED bulb according to claim 1 is characterized in that, said led chip is that substrate is transparent led chip, is coated with the first luminous bisque on the planar section of said high thermal conductivity transparent tube; Said led chip is by on the bonding first luminous bisque that is installed on said planar section of crystal-bonding adhesive; Be coated with the second luminous bisque on the led chip again, said led chip is wrapped within the first luminous bisque and the second luminous bisque.
6. LED bulb according to claim 1; It is characterized in that; Said led chip 12 is for there being the chip of reflecting layer or opaque layer on the substrate, said led chip directly is fixed on the planar section of high thermal conductivity transparent tube, is coated with the second luminous bisque on the led chip.
7. according to claim 1,2 or 4 described LED bulbs, its characteristic exists, and has at least a place to be fixed by transparent adhesive tape between said high thermal conductivity transparent tube and the pillar.
8. LED bulb according to claim 1 is characterized in that: said led chip is the chip of rubescent, blue and green three primary colours; The chip of perhaps said led chip for sending out primary lights many; Perhaps
Said led chip is blue light-emitting or the chip of sending out ultraviolet light, scribbles the chip light emitting bisque around its led chip, with blue light or ultraviolet light changes white light into or other coloured light obtains different-colour and colour rendering index.
9. LED bulb according to claim 1 is characterized in that, said cell-shell shape is A-type, G-type, R-type, BR-shape, PAR-type, T-type or candle type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200906915U CN202546349U (en) | 2012-03-12 | 2012-03-12 | Light-emitting diode (LED) bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200906915U CN202546349U (en) | 2012-03-12 | 2012-03-12 | Light-emitting diode (LED) bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202546349U true CN202546349U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200906915U Expired - Lifetime CN202546349U (en) | 2012-03-12 | 2012-03-12 | Light-emitting diode (LED) bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202546349U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062650A (en) * | 2012-12-17 | 2013-04-24 | 厦门立明光电有限公司 | Light-emitting diode (LED) bulb |
| CN103090240A (en) * | 2013-02-25 | 2013-05-08 | 杭州杭科光电股份有限公司 | High-efficiency luminescence light emitting diode (LED) light source and LED lamp using thereof |
| CN103225757A (en) * | 2013-04-26 | 2013-07-31 | 李文雄 | LED lamp bulb and manufacturing method thereof |
| CN103307464A (en) * | 2012-03-12 | 2013-09-18 | 浙江锐迪生光电有限公司 | Light-emitting diode (LED) bulb |
| CN103672531A (en) * | 2014-01-10 | 2014-03-26 | 佛山电器照明股份有限公司 | LED (light-emitting diode) bulb |
| WO2014161110A1 (en) * | 2013-04-01 | 2014-10-09 | 杭州泰格电子电器有限公司 | Led bulb |
| CN104748036A (en) * | 2015-03-20 | 2015-07-01 | 盐城工学院 | Air cooling type energy-saving automobile headlight and manufacturing method thereof |
| CN104848133A (en) * | 2015-03-20 | 2015-08-19 | 盐城工学院 | Automobile provided with LED headlights and manufacture method thereof |
| CN107191801A (en) * | 2017-07-13 | 2017-09-22 | 厦门通士达照明有限公司 | A kind of LED Glass lamps |
| CN108266651A (en) * | 2017-12-25 | 2018-07-10 | 浙江中宙光电股份有限公司 | A kind of Multifunctional LED light bulb |
-
2012
- 2012-03-12 CN CN2012200906915U patent/CN202546349U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307464A (en) * | 2012-03-12 | 2013-09-18 | 浙江锐迪生光电有限公司 | Light-emitting diode (LED) bulb |
| CN103307464B (en) * | 2012-03-12 | 2015-09-23 | 浙江锐迪生光电有限公司 | A kind of LED bulb |
| CN103062650A (en) * | 2012-12-17 | 2013-04-24 | 厦门立明光电有限公司 | Light-emitting diode (LED) bulb |
| CN103090240A (en) * | 2013-02-25 | 2013-05-08 | 杭州杭科光电股份有限公司 | High-efficiency luminescence light emitting diode (LED) light source and LED lamp using thereof |
| WO2014161110A1 (en) * | 2013-04-01 | 2014-10-09 | 杭州泰格电子电器有限公司 | Led bulb |
| CN103225757A (en) * | 2013-04-26 | 2013-07-31 | 李文雄 | LED lamp bulb and manufacturing method thereof |
| CN103672531A (en) * | 2014-01-10 | 2014-03-26 | 佛山电器照明股份有限公司 | LED (light-emitting diode) bulb |
| CN104748036A (en) * | 2015-03-20 | 2015-07-01 | 盐城工学院 | Air cooling type energy-saving automobile headlight and manufacturing method thereof |
| CN104848133A (en) * | 2015-03-20 | 2015-08-19 | 盐城工学院 | Automobile provided with LED headlights and manufacture method thereof |
| CN107191801A (en) * | 2017-07-13 | 2017-09-22 | 厦门通士达照明有限公司 | A kind of LED Glass lamps |
| CN108266651A (en) * | 2017-12-25 | 2018-07-10 | 浙江中宙光电股份有限公司 | A kind of Multifunctional LED light bulb |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Music Company Limited Assignor: Zhejiang LEDison Optoelectronics Co., Ltd. Contract record no.: 2016990000215 Denomination of utility model: LED bubble and manufacture method of LED bubble Granted publication date: 20121121 License type: Common License Record date: 20160531 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |