CN202733520U - High-luminous flux LED (light-emitting diode) lighting bulb - Google Patents
High-luminous flux LED (light-emitting diode) lighting bulb Download PDFInfo
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- CN202733520U CN202733520U CN2012203041160U CN201220304116U CN202733520U CN 202733520 U CN202733520 U CN 202733520U CN 2012203041160 U CN2012203041160 U CN 2012203041160U CN 201220304116 U CN201220304116 U CN 201220304116U CN 202733520 U CN202733520 U CN 202733520U
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- fluorescent tube
- light flux
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Abstract
A high-luminous flux LED lighting bulb comprises at least two LED light tubes which are respectively sealed under vacuum and gasified; each LED light tube comprises a transparent blister, and at least one string of LED chips are mounted on the outer surface of a transparent tube in the transparent blister; the open end of the blister, one end of the transparent tube, an exhaust tube and electrode outlets are fused to be sealed together, so that the vacuum-sealed LED light tube is formed; one end of the transparent tube is open, the other end of the transparent tube is provided with at least one through hole, the light tubes are spaced from each other, and thereby the heat of the light tubes can be effectively dissipated; each light tube is provided with a constant-current drive circuit; each light tube can emit 500lm to 3000lm of light, and with a plurality of LED light tubes, the high-luminous flux LED lighting bulb can be produced into a lamp which can emit 1000lm to 30000lm of light. The high-luminous flux LED lighting bulb can substitute for high-power electric incandescent lamps, high-power fluorescent energy-saving lamps, high-voltage sodium lamps, metal halide lamps and the like, and can be used for illumination in department stores, workshops, streetlamps, tunnels and the like needing high luminous flux; a lamp does not need to be replaced, and moreover, only the bulb needs to be replaced during maintenance.
Description
Technical field
The utility model relates to a kind of LED lighting bulb, particularly the high light flux LED illuminating lamp of a kind of alternative 100-500W or more high-power incandescent lamp.Can directly replace high-power incandescent lamp, high-power energy-saving fluorescent lamp, high-pressure mercury lamp, Metal halogen lamp etc. and be used for the illuminations such as market, road, tunnel.
Background technology
The LED bulb of prior art and the output light flux of bulb lamp can be used for replacing the following incandescent lamp of 75W and the suitable energy-saving fluorescent lamp of luminous flux generally all below 800lm; The incandescent lamp of 100W can send the light of 1200-1400lm, and the size of lamp is A19; The light that the 500W incandescent lamp then can send out 10000lm about; It is 1000lm or the incandescent lamp alternative lamp of high light flux more near A19, output light flux that existing LED illuminating lamp technology also is difficult to make the lamp size.
The high light flux LED illuminating lamp of prior art is generally all used a plurality of power-type LED elements or integrated power type led chip, is made great power LED, add the metal heat sink heat radiation of a heaviness, or add the metal heat sink heat radiation or add the metal heat sink heat radiation with fan with heat pipe.The performance of this class lamp can be compared with Metal halogen lamp with high-pressure mercury lamp at present, whole lamp efficiency can reach 80-90lm/W, colour rendering index is greater than 70, each state all make great efforts to promote is being used for the illuminations such as street lamp and tunnel in recent years, and particularly it has preferably distribution curve flux and can intelligent control and without advantages such as mercury.But the effect of in the past few years promoting is unsatisfactory, and subject matter is: price is too high, need to change whole lamp holder during replacing, is difficult to promote very soon, namely uses the EMC mode to sell also and fails of the effect; Secondly, its maintenance is difficult to finish at the scene, can not the image height pressure sodium lamp, Metal halogen lamp can more change the bulb at the scene like that and finish, and maintenance cost is higher; In addition, also have that weight is too heavy, poor reliability, light decay are large, efficient is owed high deficiency.
The high light flux of prior art throw light on large multiplex high-pressure mercury lamp or Metal halogen lamp, wherein high-pressure mercury lamp is used the most extensively, its light efficiency can be up to 140-150lm/W, whole lamp efficient reaches 90-100lm/W, also can reach 15000 hours service life, cost is also lower, but its colour rendering index very low, only have 20-30; Than the high-pressure mercury lamp of high color rendering index (CRI), luminous efficiency is very low; Simultaneously, its all belong to high-intensity gas discharge lamp the same as Metal halogen lamp needs harmful mercury; These two kinds of lamps also are difficult to control more to save electricity consumption with intelligent all needing to wait for 5-10 minute after the outage, just can restarting after the fluorescent tube cooling.
In view of existing high light flux throw light on large multiplex high-pressure mercury lamp or Metal halogen lamp, and these lamps mostly are greatly the lamp of the lamp holder of the forms such as screw socket, optimal alternative lamp preferably has the lamp holder of the same form lamp close with size dimension, can directly replace and need not to change whole lampshade light fixture, not only cost is low, and easily promote, easy to maintenance; But unfortunately, also there is not so far this class can directly replace the high light flux LED lamp of high-pressure mercury lamp or Metal halogen lamp etc.
Summary of the invention
The purpose of this utility model is intended to solve the above-mentioned deficiency that exists in the prior art, and provide a kind of output light flux high, luminous efficiency is high, cost is low, lightweight, can directly replace the high light flux LED lighting bulb of high-power incandescent lamp, high-power energy-saving fluorescent lamp, high-pressure mercury lamp, Metal halogen lamp.
The technical solution of the utility model is as follows:
The high light flux LED illuminating lamp that the utility model provides, it comprises: a led light source, a led light source installed part, led driver and drive enclosure, an electric connector; The electrode of led light source is connected with the output of driver, and the input of driver is connected with electric connector, and electric connector is used for connecting external power; It is characterized in that:
Described led light source at least two separately vacuum seal and being filled with conduct heat and the LED fluorescent tube of the gas of protection LED;
Described at least two LED fluorescent tubes are fixedly installed on the fluorescent tube installed part, the heat radiation gap of the heat that allowing air flow is arranged between each fluorescent tube, produces when taking away lamp works;
Described each LED fluorescent tube includes: a printing opacity cell-shell; A transparent pipe; A blast pipe; At least a string mutual series connection or series-parallel led chip are installed on the transparent pipe outer surface, and the electrode of led chip is drawn by electrode outlet line; Described printing opacity cell-shell is with an end, blast pipe and the electric lead-out wire high temperature sealing by fusing of transparent pipe, to consist of vacuum-packed LED fluorescent tube; The LED fluorescent tube is filled with the gas that conducts heat and protect LED after blast pipe vacuumizes, afterwards blast pipe is sealed; Part one end opening of described transparent pipe in cell-shell, the other end has at least one through hole;
Described each LED fluorescent tube has constant-current drive circuit separately.
Described led chip is that chip substrate is the chip of transparent, blue light-emitting or ultraviolet light, and led chip is installed in glue on the transparent pipe outer surface; Be coated with the first luminous bisque on transparent pipe outer surface and the led chip, be coated with again the second luminous bisque on the first luminous bisque on the led chip; Perhaps, described led chip is that the chip of blue light-emitting adds and glows or the chip of other look; Perhaps described led chip is rubescent, blue, the chip of green three primary colours or the chip of many primary colours.
The described first luminous bisque and the second luminous bisque are mixed by luminescent powder and transparent medium, and described transparent medium is silica type, epoxy resin, low-melting glass or plastics.
The gas of heat transfer in the described LED fluorescent tube and protection LED is rare gas, dry air or their gaseous mixtures such as helium, hydrogen, nitrogen, neon; Its air pressure is 0.2-3 atmospheric pressure under the room temperature.
Can be set with the second transparent pipe on the described transparent pipe outer surface, the plane that has at least one to be used to install led chip on described the second transparent pipe outer surface, described a string at least led chip is installed on the described plane; Described the second transparent pipe is made by glass, crystalline ceramics pipe or plastics; Described led chip is installed on the first luminous bisque with the transparency carrier of the first luminous bisque, is coated with the second luminous bisque on the first luminous bisque on the led chip.
The described first luminous bisque also can directly be produced on the plane of the second transparent pipe, and led chip is installed on the first luminous bisque, and there is the second luminous bisque the led chip top.
Described led chip is dispersed to be installed or up and down two layers of installation.
Described drive enclosure and LED fluorescent tube installed part are made by plastics, pottery, metal or with the metal of insulating coating; Establish thermal insulation layer in the described fluorescent tube installed part.
Fixed by fixture between the described adjacent LED fluorescent tube.
Described driver comprises power factor correction circuit, holding circuit and each LED fluorescent tube constant-current drive circuit separately.Described driver also includes light-operated circuit or time control circuit.
Described printing opacity cell-shell is shaped as existing a kind of in bulb-shaped of T-type, A-type, G-type, R-type, BR-shape, PAR-type, candle type or other.
Each LED fluorescent tube of the present utility model can be sent out the light of 500-3000lm, and a high light flux LED lamp has a plurality of LED fluorescent tubes, can be made into the lamp of 1000--30000lm.Can directly replace existing high-power incandescent lamp, high-power energy-saving fluorescent lamp, high-pressure mercury lamp, Metal halogen lamp etc.
The utility model compared with prior art, its advantage is: the LED lamp is made by a plurality of LED fluorescent tubes, have one transparent pipe LED, full communication between the higher and lower levels is installed in each fluorescent tube, gas in the hot heating tube that LED when work produces, make its fast rise, suck simultaneously lower end gas, in pipe, form strong gas backstreaming, just such as a passive gas backstreaming pump, can effectively dissipate the tube wall of the torrid zone of LED generation to fluorescent tube; Simultaneously, between each LED fluorescent tube the space is arranged, can allow air heat because of the heat of fluorescent tube and rise, effectively the torrid zone of fluorescent tube is walked to dissipate good heat dissipation effect; Each fluorescent tube has constant-current circuit separately, can guarantee that each LED fluorescent tube all works; Thereby can be made into high light flux, high-luminous-efficiency, low cost, high light flux LED illuminating lamp that size is little, can directly replace high-power incandescent lamp, high-power energy-saving fluorescent lamp, high-pressure mercury lamp and Metal halogen lamp, be used for market, road, tunnel etc. and need the occasion of high light flux illumination, easily promote.
Description of drawings
Fig. 1 is an example structure schematic diagram of high light flux LED illuminating lamp of the present utility model, and (A) is top view among the figure, (B) is main looking and partial cutaway schematic.
Fig. 2 is an example structure schematic diagram of the LED fluorescent tube of high light flux LED illuminating lamp of the present utility model.
Fig. 3 is the schematic diagram of an embodiment in the C-C cross section of LED fluorescent tube shown in Figure 2.
Fig. 4 is the schematic diagram of another embodiment in the C-C cross section of LED fluorescent tube shown in Figure 2.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is the structural representation of an embodiment of high light flux LED illuminating lamp of the present utility model, and (A) is top view among the figure, (B) is main looking and partial cutaway schematic; As shown in Figure 1, high light flux LED illuminating lamp of the present utility model, it comprises:
At least two separately vacuum seal and being filled with conduct heat and the LED fluorescent tube 2 of protection LED gas, LED fluorescent tube 2 shown in Figure 1 is for there being 3 example;
A fluorescent tube installed part 3;
Described LED fluorescent tube 2 is fixedly installed on fluorescent tube installed part 3 one end faces;
A drive enclosure 5 that is fixedly connected on described fluorescent tube installed part 3 other ends;
In the described drive enclosure 5 driver 4 is housed;
The output of described driver 4 is electrically connected with the electric lead-out wire 10 of described LED fluorescent tube 2;
An electric connector 6 that is used for being connected external power that is electrically connected with described driver 4;
Each fluorescent tube 2 includes:
A printing opacity fluorescent tube cell-shell 7 that is filled with gas after being evacuated;
Be positioned at the transparent pipe 11 within the described printing opacity fluorescent tube cell-shell 7;
Be installed on the blast pipe 8 of described transparent pipe 11 lower ends;
Be installed on a string at least led chip 9 on described transparent pipe 11 outer surfaces, its electrode is drawn by electrode outlet line 10 and is electrically connected with described driver 4;
Described fluorescent tube cell-shell 7, blast pipe 8, electrode outlet line 10 and transparent pipe 11 together high temperature sealing by fusing consist of vacuum-packed LED fluorescent tube 2.
At least a string led chip or at least one high-voltage LED chip (being the chip that each chip has 2 above PN junctions) the 9 and first luminous bisque 19 and the second luminous bisque 20(are installed on the outer surface of described transparent pipe 11 see in detail Fig. 3).
Described led chip 9 is transparent led chip for chip substrate, is the chip of blue light-emitting or ultraviolet light, or glows and the chip of other look for the chip of blue light-emitting adds, or is rubescent, blue, the chip of green three primary colours or the chip of many primary colours.
One end 11a opening of the part of transparent pipe 11 in cell-shell 7, the other end have at least one through hole 12; The heat that produces when the gas in the transparent pipe 11 can be worked because of led chip is heated and is risen, and sucks simultaneously lower end gas and forms strong gas backstreaming, allows the LED heat radiation, shown among Fig. 1 13;
Described a string at least led chip or at least one high-voltage LED chip are connected or connection in series-parallel mutually, and 21 between each string led chip and electric connection line between chip and its electrode outlet line 10.
The gas 18 that fills in the LED fluorescent tube 2 of described vacuum seal and inflation can be rare gas (being inert gas), dry air or their gaseous mixtures such as helium, hydrogen, nitrogen, neon; Helium and helium hydrogen gaseous mixture are preferred gas; The air pressure of institute's inflatable body is 0.2-3 atmospheric pressure under the room temperature.
Also can be set with the second transparent pipe 24 on the described glass tube 11, as shown in Figure 4; Described led chip 9 is installed on the outer surface of the second transparent pipe 24; Described the second transparent pipe 24 is sleeved on the glass tube 11 openings one end 11a.
Described driver 4 includes each LED fluorescent tube constant-current drive circuit separately, to guarantee the separately constant current work of each fluorescent tube; Described driver 4 also includes power factor correction circuit and holding circuit; Also can include light-operated/time control circuit when needing.
Described drive enclosure 5 and fluorescent tube installed part 3 are made by plastics, pottery, metal or with the metal of insulating coating.
The conical surface of the end face of described fluorescent tube installed part 3 for protruding, in order to circulation of air, its inner in addition air heat-insulation layer 3a, the heat that produces during with 2 work of minimizing LED fluorescent tube is conducted to driver 4.
Among Fig. 1, also fixing by fixture 17 between each LED fluorescent tube 2.
Described printing opacity fluorescent tube cell-shell 7 is shaped as existing a kind of in bulb-shaped of T-type, A-type, G-type, R-type, BR-shape, PAR-type, candle type or other, Figure 1 shows that the example of T-type pipe.
A kind of in existing incandescent lamp, high-pressure mercury lamp and the Metal halogen lamp lamp holder of described electric connector 6.
The LED fluorescent tube 2 of described each vacuum seal and inflation can be sent out the light of 500-3000lm, a high light flux LED illuminating lamp 1 has a plurality of LED fluorescent tubes 2, can be made into the lamp of 1000--30000lm, can directly replace existing high-power incandescent lamp, high-power energy-saving fluorescent lamp, high-pressure mercury lamp, Metal halogen lamp etc.
Fig. 2 is the structural representation of an embodiment of the LED fluorescent tube 2 of high light flux LED illuminating lamp of the present utility model; Be characterised in that, described a string at least led chip 9 is dispersed installation, with better heat radiation, Figure 2 shows that the up and down example of two layers of installation.Identical among Fig. 2 among other digital meaning and Fig. 1.
Fig. 3 is the structural representation of an embodiment in the C-C cross section of Fig. 2; Led chip 9 is fixed on glass tube 11 outer surfaces with glue 22, and the first luminous bisque 19 is arranged on glass tube 11 outer surfaces and the led chip 9, is coated with the second luminous bisque 20 even to guarantee illuminant colour on the first luminous bisque 19 on the led chip 9 again; 23 is the electric connection line between the led chip; The first luminous bisque 19 and the second luminous bisque 20 are mixed by luminescent powder and transparent medium, and described transparent medium is silica type transparent medium, epoxy resin transparent medium, low-melting glass or plastics etc.The first luminous bisque 19 parcel transparent pipes 11 can be led chip 9 issued light scatterings, dazzle light with reduction.
Described led chip 9 is the chip of transparent, blue light-emitting or ultraviolet light for substrate, in order to obtain required colour temperature and development index, also can be added with again and to glow and the chip of other coloured light.
That described led chip 9 also can be is rubescent, blue, the chip of green three primary colours or the chip of many primary colours; Led chip of all kinds with varying number can obtain the not output light of homochromy parameter, at this moment can the first and second luminous bisques.
Fig. 4 is the structural representation of another embodiment in the C-C cross section of Fig. 2; It is characterized in that, also be set with the second transparent pipe 24 outside the described transparent pipe 11, described the second transparent pipe 24 is glass tube, crystalline ceramics pipe or lucite pipe; Have at least a place to have glue 25 to interfix between described the second transparent pipe 24 and the transparent pipe 11; There is at least one plane 26 to be used for installing described a string at least led chip 9 on the second transparent pipe 24 outer surfaces.
Described a string at least led chip 9 is fixed on glue 27 on the luminous bisque 28 of transparency carrier 29 of the first luminous bisque 28, on the first luminous bisque 28 on the led chip 9 the second luminous bisque 30 is arranged; Described transparency carrier 29 is made by glass, crystalline ceramics or transparent plastic; Described transparency carrier 29 is fixed on the plane 26 of the second transparent pipe 24 with glue 31.
But described led chip 9 odevities are alternately staggered, and as shown in Figure 4, making has larger distance between the led chip, so that better heat radiation.
The described first luminous bisque 28 also can directly be produced on the plane 26 of the second transparent pipe 24, namely without transparency carrier 29.Identical among Fig. 4 among other digital meaning and Fig. 3.
Each embodiment that the claimed scope of the utility model is not limited to introduce herein, all belongs to the scope that the utility model is contained at all various forms of conversion of doing based on the utility model application claim and description and replacement.
Claims (11)
1. high light flux LED lighting bulb, it comprises: a led light source, a led light source installed part, led driver and drive enclosure, an electric connector; The electrode of led light source is connected with the output of driver, and the input of driver is connected with electric connector, and electric connector is used for connecting external power; It is characterized in that:
Described led light source at least two separately vacuum seal and being filled with conduct heat and the LED fluorescent tube of the gas of protection LED;
Described at least two LED fluorescent tubes are fixedly installed on the fluorescent tube installed part, the heat radiation gap of the heat that allowing air flow is arranged between each fluorescent tube, produces when taking away lamp works;
Described each LED fluorescent tube includes: a printing opacity cell-shell; A transparent pipe; A blast pipe; At least a string mutual series connection or series-parallel led chip are installed on the transparent pipe outer surface, and the electrode of led chip is drawn by electrode outlet line; Described printing opacity cell-shell is with an end, blast pipe and the electric lead-out wire high temperature sealing by fusing of transparent pipe, to consist of vacuum-packed LED fluorescent tube; The LED fluorescent tube is filled with the gas that conducts heat and protect LED after blast pipe vacuumizes, afterwards blast pipe is sealed; One end opening of the part of described transparent pipe in cell-shell, the other end has at least one through hole;
Described each LED fluorescent tube has constant-current drive circuit separately.
2. by high light flux LED lighting bulb claimed in claim 1, it is characterized in that, described led chip is that chip substrate is the chip of transparent, blue light-emitting or ultraviolet light, and led chip is installed in glue on the transparent pipe outer surface; Be coated with the first luminous bisque on transparent pipe outer surface and the led chip, be coated with again the second luminous bisque on the first luminous bisque on the led chip; Perhaps, described led chip is that the chip of blue light-emitting adds and glows or the chip of other look; Perhaps described led chip is rubescent, blue, the chip of green three primary colours or the chip of many primary colours.
3. by high light flux LED lighting bulb claimed in claim 1, it is characterized in that, the gas of the heat transfer in the described LED fluorescent tube and protection LED is helium, hydrogen, nitrogen, dry air, argon, neon body or their gaseous mixture; Its air pressure is 0.2-3 atmospheric pressure under the room temperature.
4. by high light flux LED lighting bulb claimed in claim 1, it is characterized in that, be set with the second transparent pipe on the described transparent pipe outer surface, the plane that has at least one to be used to install led chip on described the second transparent pipe outer surface, described a string at least led chip is installed on the described plane; Described the second transparent pipe is made by glass, crystalline ceramics pipe or plastics; Described led chip is installed on the first luminous bisque with the transparency carrier of the first luminous bisque, is coated with the second luminous bisque on the first luminous bisque on the led chip.
5. by high light flux LED lighting bulb claimed in claim 4, it is characterized in that, the described first luminous bisque directly is produced on the plane of the second transparent pipe, and led chip is installed on the first luminous bisque, and there is the second luminous bisque the led chip top.
6. by claim 1,2,5 or 6 described high light flux LED lighting bulbs, it is characterized in that, described led chip is dispersed to be installed or up and down two layers of installation.
7. by high light flux LED lighting bulb claimed in claim 1, it is characterized in that, the conical surface of the central authorities of described fluorescent tube installed part for protruding is provided with thermal insulation layer in it.
8. by high light flux LED lighting bulb claimed in claim 1, it is characterized in that, fixed by fixture between the described adjacent LED fluorescent tube.
9. by high light flux LED lighting bulb claimed in claim 1, it is characterized in that, described driver comprises power factor correction circuit, holding circuit and each LED fluorescent tube constant-current drive circuit separately.
10. by high light flux LED lighting bulb claimed in claim 9, it is characterized in that, described driver also includes light-operated circuit or time control circuit.
11. high light flux LED lighting bulb according to claim 1 is characterized in that, described printing opacity cell-shell is shaped as existing a kind of in bulb-shaped of T-type, A-type, G-type, R-type, BR-shape, PAR-type, candle type or other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203041160U CN202733520U (en) | 2012-06-21 | 2012-06-21 | High-luminous flux LED (light-emitting diode) lighting bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203041160U CN202733520U (en) | 2012-06-21 | 2012-06-21 | High-luminous flux LED (light-emitting diode) lighting bulb |
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| Publication Number | Publication Date |
|---|---|
| CN202733520U true CN202733520U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203041160U Expired - Lifetime CN202733520U (en) | 2012-06-21 | 2012-06-21 | High-luminous flux LED (light-emitting diode) lighting bulb |
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| CN (1) | CN202733520U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727438A (en) * | 2014-01-14 | 2014-04-16 | 四川品龙光电科技有限公司 | LED lamp and manufacturing method |
| CN104061464A (en) * | 2013-11-28 | 2014-09-24 | 浙江锐迪生光电有限公司 | High-power LED lamp without metal radiator |
| USD780958S1 (en) | 2015-12-06 | 2017-03-07 | GE Lighting Solutions, LLC | Retrofit lamp with LED light source filament |
| USD785821S1 (en) | 2015-12-06 | 2017-05-02 | GE Lighting Solutions, LLC | Retrofit lamp with LED light source filament |
| USD789569S1 (en) | 2015-12-06 | 2017-06-13 | GE Lighting Solutions, LLC | Retrofit lamp with LED light source filament |
| USD790086S1 (en) | 2015-12-06 | 2017-06-20 | GE Lighting Solutions, LLC | Retrofit lamp with LED light source filament |
-
2012
- 2012-06-21 CN CN2012203041160U patent/CN202733520U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061464A (en) * | 2013-11-28 | 2014-09-24 | 浙江锐迪生光电有限公司 | High-power LED lamp without metal radiator |
| CN103727438A (en) * | 2014-01-14 | 2014-04-16 | 四川品龙光电科技有限公司 | LED lamp and manufacturing method |
| USD780958S1 (en) | 2015-12-06 | 2017-03-07 | GE Lighting Solutions, LLC | Retrofit lamp with LED light source filament |
| USD785821S1 (en) | 2015-12-06 | 2017-05-02 | GE Lighting Solutions, LLC | Retrofit lamp with LED light source filament |
| USD789569S1 (en) | 2015-12-06 | 2017-06-13 | GE Lighting Solutions, LLC | Retrofit lamp with LED light source filament |
| USD790086S1 (en) | 2015-12-06 | 2017-06-20 | GE Lighting Solutions, LLC | Retrofit lamp with LED light source filament |
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Legal Events
| Date | Code | Title | Description |
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| 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: A kind of high light flux LED lighting bulb Granted publication date: 20130213 License type: Common License Record date: 20160531 |
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| 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: 20130213 |