CN105762143A - High-power white-light LED light source based on transparent ceramic fluorescent tube - Google Patents
High-power white-light LED light source based on transparent ceramic fluorescent tube Download PDFInfo
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- CN105762143A CN105762143A CN201610128427.9A CN201610128427A CN105762143A CN 105762143 A CN105762143 A CN 105762143A CN 201610128427 A CN201610128427 A CN 201610128427A CN 105762143 A CN105762143 A CN 105762143A
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- 239000000919 ceramic Substances 0.000 title abstract 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000011222 crystalline ceramic Substances 0.000 claims description 42
- 229910002106 crystalline ceramic Inorganic materials 0.000 claims description 42
- 239000008393 encapsulating agent Substances 0.000 claims description 29
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229910019990 cerium-doped yttrium aluminum garnet Inorganic materials 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 241001025261 Neoraja caerulea Species 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 6
- 230000001795 light effect Effects 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 3
- XLXGCFTYXICXJF-UHFFFAOYSA-N ethylsilicon Chemical compound CC[Si] XLXGCFTYXICXJF-UHFFFAOYSA-N 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 13
- 230000005284 excitation Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract 5
- 238000004806 packaging method and process Methods 0.000 abstract 3
- 238000002834 transmittance Methods 0.000 abstract 3
- 230000017525 heat dissipation Effects 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 240000003380 Passiflora rubra Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 210000000007 bat wing Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a high-power white-light LED light source based on a transparent ceramic fluorescent tube, and the LED light source consists of a metal thermal conducting column (1), a blue light chip (2), the transparent ceramic fluorescent tube (3), a high-transmittance packaging housing (4), a cooling fin (5), and an electrode (6). The blue light chip (2) is pasted on the metal thermal conducting column (1), and the transparent ceramic fluorescent tube (3) is disposed outside the metal thermal conducting column (1). The transparent ceramic fluorescent tube (3) and the metal thermal conducting column (1) are disposed at the center of the upper end face of the cooling fin (5). The high-transmittance packaging housing (4) is reversely buckled on the upper end face of the cooling fin (5), and a heat dissipation material is disposed in the high-transmittance packaging housing (4). The electrode (6) is located exactly below the cooling fin (5), and is connected with the cooling fin (5) through a connecting line, and the other end of the electrode (6) is connected with an external power supply. The light source employs the technology of remote excitation, employs the transparent ceramic fluorescent tube (3) to replace fluorescent powder, and enables the transparent ceramic fluorescent tube (3) to be separated from the blue light chip (2). The prepared LED light source is good in light uniformity, is easier for heat dissipation, and can be used as a large-power LED light source.
Description
Technical field
The present invention relates to a kind of high-power white light LED light source based on remote excitation technology, particularly relate to a kind of high-power white light LED light source based on crystalline ceramics fluorescent tube, it is replace, with crystalline ceramics fluorescent tube, the fluorescent material being applied directly on blue chip, by its technological thought separated with blue chip.
Background technology
White LED light source has replaced electric filament lamp, daylight lamp, extensive use in daily life gradually.At present, the illumination mode of white LED light source mainly has two kinds.The white LED light source circulated extensively on market mainly utilizes monochromatic light to coordinate fluorescent material to excite the illumination mode forming white light.Compared to electric filament lamp and daylight lamp, the long service life of white LED light source, security reliability is higher and more environmentally-friendly.But in this technology, directly the fluorescent material of coating is very big to the influence of fading of white light LEDs, there is the shortcomings such as big, low, the weak heat-dissipating of lack of homogeneity, luminous efficiency of light decay, causes that current commercially available white LED light source is only applicable to low-power applications.
In addition, also have another relatively advanced technology and far-end phosphor technologies in the market.Fluorescent material is coated on lampshade by this technology, it is to avoid fluorescent material directly contact with blue chip, but this technology equally exists the shortcomings such as astigmatism loss, light distribution is uneven, optical uniformity is poor.Therefore, the power of current white LED light source is general less, even if there being the LED light source that power is bigger, price is also higher, and development and application is restricted.
Summary of the invention
It is an object of the invention to for existing problem, and propose a kind of high-power white light LED light source based on crystalline ceramics fluorescent tube, the present invention adopts a kind of remote excitation technology, replaces fluorescent material with crystalline ceramics fluorescent tube, it is separated with blue chip.The optical uniformity adopting white LED light source prepared by this technology is good, is more easy to and carries out radiating treatment, and light efficiency can improve about 20%, can be applicable to high-power LED light source.
The present invention adopts the following technical scheme that: a kind of high-power white light LED light source based on crystalline ceramics fluorescent tube, it is characterised in that be made up of metal guide plume 1, blue chip 2, crystalline ceramics fluorescent tube 3, high transparent encapsulant shell 4, fin 5 and electrode 6；Wherein blue chip 2 is attached on metal guide plume 1, the crystalline ceramics fluorescent tube 3 of one tubulose is set outside metal guide plume 1, keep certain distance between the two, crystalline ceramics fluorescent tube 3 and metal guide plume 1 are placed in fin 5 upper surface central authorities, it is placed in high transparent encapsulant shell 4, high transparent encapsulant shell 4 tips upside down on fin 5 upper surface, it is filled with heat radiation material in high transparent encapsulant shell 4, electrode 6 is positioned at the underface of fin 5, being connected with fin 5 by connecting line one end, the other end of electrode 6 connects with external power source.
Preferably above-mentioned metal guide plume is rib number is prism or the cylindrical shape of 3-8, and its caliber is 10-60mm, is highly 40-200mm.The material of preferred metal guide plume is metallic aluminium.
Preferably above-mentioned high transparent encapsulant envelope outer diameter is 30-120mm, is highly 80-240mm.The material of preferred high transparent encapsulant shell is polypropylene or glass.
The distance of 10-40mm is kept between preferred above-mentioned metal guide plume and crystalline ceramics fluorescent tube.
The bores such as preferred high transparent encapsulant shell and fin upper surface；Fin lower surface bore is 20mm-100mm.
Preferred described blue chip is blue-ray LED lamp bead or the integrated blue chip of COB；Thickness is 2-8mm；The arrangement of blue chip linear vertical is attached on metal guide plume, and arranging distance is 2-4mm, and pasted blue chip area accounts for the 50-80% of metal guide plume surface area.
Preferred described crystalline ceramics fluorescent tube is the Ce:YAG crystalline ceramics fluorescent tube of a kind of hollow, and it is 65-75% in 550nm place transmitance, and density is 99.0-99.7%.
The heat radiation material being filled with described in preferably is by special equipment elder generation evacuation; fill Protective substances again; can being nitrogen, argon, nitrogen, argon oxygen mixture, ethyl silicon oil or phenyl silicone oil, charge accounts for high transparent encapsulant shell and the 50-90% of crystalline ceramics fluorescent tube formation voidage.
The wattage of the high-power white LED light source obtained by the present invention is 50-300W, and LED light effect is 120-180lm/W.
Beneficial effect:
(1) blue chip related in the present invention, lighting angle own is 120 °, is affixed on difform metal guide plume by linear arrangement, the interphase interaction of light and light, significantly improves optical uniformity, it is achieved 4 π go out light.Light intensity is the distribution of the similar bat wing simultaneously, and space uniform is much better than conventional white light LED, reduces dazzle.
(2) present invention adopts remote excitation technology; the fluorescent material being applied directly on blue chip is replaced with Ce:YAG crystalline ceramics fluorescent tube; blue chip is made to separate with crystalline ceramics fluorescent tube; the heat that both produce effectively separates; reduce fluorescent material decay; avoid human eye to contact the illumination of comparatively strong blue wave band, effectively protect human eye.Also improving light efficiency, radiating effect is more good, is applicable to high-power LED light source simultaneously.
(3) the crystalline ceramics fluorescent tube that the present invention adopts can effectively protect the blue light that blue chip sends, it is prevented that blue light is revealed, and improves luminous efficiency.
(4) present invention adopts remote excitation technology, and LED point light source is converted to area source, makes luminescence more uniform, decreases astigmatism loss, and luminance at least improves 20%.
(5) present invention adopts remote excitation technology, compared with traditional LED lamp, improves light efficiency, makes temperature lower, decreases light diffusion to the full extent, and therefore the life-span is longer, efficiency is more excellent, lower in cost.
Accompanying drawing explanation
Fig. 1 be the high-power white light LED light source of the present invention structural representation；
Fig. 2 is the sectional view of Fig. 1；
Wherein, 1-metal guide plume, 2-blue chip, 3-crystalline ceramics fluorescent tube, 4-height transparent encapsulant shell, 5-fin, 6-electrode.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is explained in detail.These embodiments will assist in those skilled in the art and are further appreciated by the present invention, but do not limit the scope of the present invention in any form.In addition, it is to be understood that without departing from the inventive concept of the premise, the present invention is made various changes or modifications by those skilled in the art, and these broadly fall into protection scope of the present invention.
The structural representation of following example as it is shown in figure 1, sectional view as shown in Figure 2；High transparent encapsulant enclosure material is polypropylene or glass, and the material of metal guide plume is aluminum.
Embodiment 1
(1) coadapted metal guide plume 1, blue chip 2, crystalline ceramics fluorescent tube 3, high transparent encapsulant shell (polypropylene) 4, fin 5 and electrode 6 are prepared respectively；
(2) by the COB blue chip 2 interval 3mm linear vertical arrangement that thickness is 2mm, being attached on the metal guide plume 1 of positive rectangular shape of base length of side 15mm, high 100mm by silica gel, pasted chip area accounts for the 70% of metal guide plume 1 surface area；
(3) posting the Ce:YAG crystalline ceramics fluorescent tube 3 arranging a tubulose outside the metal guide plume 1 of positive rectangular shape of COB blue chip 2, it is 70% in 550nm place transmitance, and density is 99.7%, keeps the distance of 20mm between the two；
(4) crystalline ceramics pipe 3 and metal guide plume 1 are placed on fin 5 upper surface, and commercially available screw socket electrode 6 is positioned at immediately below fin 5, is connected with fin 5 by connecting line one end, and the electrode other end connects with external power source；
(5) by outside a structure covering on step (4) row with the back-off test tube type height transparent encapsulant shell 4 that the bore such as fin 5 upper surface, lower surface are 30mm, this envelope outer diameter is 50mm, it is highly 120mm, finally by special equipment elder generation evacuation, then be filled with in shell content be high transparent encapsulant shell and crystalline ceramics fluorescent tube formed voidage 70% nitrogen after complete encapsulation.
The high-power white LED light source wattage being finally made is 200W, and LED light effect is 150lm/W.
White LED light source structure based on crystalline ceramics fluorescence official prepared by the present embodiment as it is shown in figure 1, sectional view as shown in Figure 2.
Embodiment 2
(1) coadapted metal guide plume 1, blue chip 2, crystalline ceramics fluorescent tube 3, high transparent encapsulant shell (polypropylene) 4, fin 5 and electrode 6 are prepared respectively；
(2) by the blue-ray LED lamp bead 2 interval 4mm linear vertical arrangement that thickness is 4mm, being attached to base length of side 10mm by silica gel, on the metal guide plume 1 of the regular triangular prism shape of high 200mm, pasted chip area accounts for the 80% of metal guide plume 1 surface area；
(3) posting the Ce:YAG crystalline ceramics fluorescent tube 3 arranging a hollow outside the metal guide plume 1 of regular triangular prism shape of blue-ray LED lamp bead 2, it is 75% in 550nm place transmitance, and density is 99.0%, keeps the distance of 40mm between the two；
(4) crystalline ceramics pipe 3 and metal guide plume 1 are placed on fin 5 upper surface, and commercially available screw socket electrode 6 is positioned at immediately below fin 5, is connected with fin 5 by connecting line one end, and the electrode other end connects with external power source；
(5) by outside a structure covering on step (4) row with the back-off test tube type height transparent encapsulant shell 4 that the bore such as fin 5 upper surface, lower surface are 80mm, this envelope outer diameter is 120mm, it is highly 240mm, finally by special equipment elder generation evacuation, then be filled with in shell content be high transparent encapsulant shell and crystalline ceramics fluorescent tube formed voidage 90% argon after complete encapsulation.
The high-power white LED light source wattage being finally made is 50W, and LED light effect is 180lm/W.
Embodiment 3
(1) coadapted metal guide plume 1, blue chip 2, crystalline ceramics fluorescent tube 3, high transparent encapsulant shell (polypropylene) 4, fin 5 and electrode 6 are prepared respectively；
(2) by the COB blue chip 2 interval 4mm linear vertical arrangement that thickness is 2mm, being attached to base length of side 15mm by silica gel, on the metal guide plume 1 of the regular triangular prism shape of high 40mm, pasted chip area accounts for the 50% of metal guide plume 1 surface area；
(3) posting the Ce:YAG crystalline ceramics fluorescent tube 3 arranging a hollow outside the metal guide plume 1 of regular triangular prism shape of COB blue chip 2, it is 72% in 550nm place transmitance, and density is 99.3%, keeps the distance of 10mm between the two；
(4) crystalline ceramics pipe 3 and metal guide plume 1 are placed on fin 5 upper surface, and commercially available screw socket electrode 6 is positioned at immediately below fin 5, is connected with fin 5 by connecting line one end, and the electrode other end connects with external power source；
(5) by outside a structure covering on step (4) row with the back-off test tube type height transparent encapsulant shell 4 that the bore such as fin 5 upper surface, lower surface are 15mm; this envelope outer diameter is 30mm; it is highly 80mm; finally by special equipment elder generation evacuation, then be filled with in shell content be high transparent encapsulant shell and crystalline ceramics fluorescent tube formed voidage 51% ethyl silicon oil heat radiation protection liquid after complete encapsulation.
The high-power white LED light source wattage being finally made is 300W, and LED light effect is 120lm/W.
Embodiment 4
(1) coadapted metal guide plume 1, blue chip 2, crystalline ceramics fluorescent tube 3, high transparent encapsulant shell (glass) 4, fin 5 and electrode 6 are prepared respectively；
(2) by the blue-ray LED lamp bead 2 interval 2mm linear vertical arrangement that thickness is 8mm, being attached on the cylindrical metal guide plume 1 of base diameter 60mm, high 200mm by silica gel, pasted chip area accounts for the 65% of metal guide plume 1 surface area；
(3) arranging the Ce:YAG crystalline ceramics fluorescent tube 3 of a hollow outside the cylindrical metal guide plume 1 post blue-ray LED lamp bead 2, it is 65% in 550nm place transmitance, and density is 99.5%, keeps the distance of 25mm between the two；
(4) crystalline ceramics pipe 3 and metal guide plume 1 are placed on fin 5 upper surface, and commercially available screw socket electrode 6 is positioned at immediately below fin 5, is connected with fin 5 by connecting line one end, and the electrode other end connects with external power source；
(5) by outside a structure covering on step (4) row with the back-off test tube type height transparent encapsulant shell 4 that the bore such as fin 5 upper surface, lower surface are 60mm; this envelope outer diameter is 120mm; it is highly 240mm; finally by special equipment elder generation evacuation, then be filled with in shell content be high transparent encapsulant shell and crystalline ceramics fluorescent tube formed voidage 50% phenyl silicone oil heat radiation protection liquid after complete encapsulation.
The high-power white LED light source wattage being finally made is 180W, and LED light effect is 130lm/W.
Claims (9)
1. the high-power white light LED light source based on crystalline ceramics fluorescent tube, it is characterised in that be made up of metal guide plume (1), blue chip (2), crystalline ceramics fluorescent tube (3), high transparent encapsulant shell (4), fin (5) and electrode (6)；Wherein blue chip (2) is attached on metal guide plume (1), the crystalline ceramics fluorescent tube (3) of one tubulose is set outside metal guide plume (1), keep certain distance between the two, crystalline ceramics fluorescent tube (3) and metal guide plume (1) are placed in fin (5) upper surface central authorities, it is placed in high transparent encapsulant shell (4), high transparent encapsulant shell (4) tips upside down on fin (5) upper surface, it is filled with heat radiation material in high transparent encapsulant shell (4), electrode (6) is positioned at the underface of fin (5), it is connected with fin (5) by connecting line one end, the other end of electrode (6) connects with external power source.
2. by high-power white light LED light source described in claim 1, it is characterised in that: described metal guide plume (1) is prism that rib number is 3-8 or cylindrical shape, and its caliber is 10-60mm, is highly 40-200mm.
3. by the high-power white light LED light source described in claim 1, it is characterised in that: described high transparent encapsulant shell (4) external diameter is 30-120mm, is highly 80-240mm.
4. by the high-power white light LED light source described in claim 1, it is characterised in that: keep the distance of 10-40mm between described metal guide plume (1) and crystalline ceramics fluorescent tube (3).
5. by the high-power white light LED light source described in claim 1, it is characterised in that: the bores such as described high transparent encapsulant shell (4) and fin (5) upper surface；Fin (5) lower surface bore is 20mm-100mm.
6. by the high-power white light LED light source described in claim 1, it is characterised in that: described blue chip (2) is the integrated blue chip of blue-ray LED lamp bead or COB；Thickness is 2-8mm；The arrangement of blue chip (2) linear vertical is attached on metal guide plume (1), and arranging distance is 2-4mm, and pasted blue chip (2) area accounts for the 50-80% of metal guide plume (1) surface area.
7. by the high-power white light LED light source described in claim 1, it is characterised in that: described crystalline ceramics fluorescent tube (3) is the Ce:YAG crystalline ceramics fluorescent tube of a kind of hollow, and it is 65-75% in 550nm place transmitance, and density is 99.0-99.7%.
8. by the high-power white light LED light source described in claim 1, it is characterised in that: the heat radiation material being filled with is nitrogen, argon, nitrogen, argon oxygen mixture, ethyl silicon oil or phenyl silicone oil；Charge accounts for the 50-90% of high transparent encapsulant shell (4) and crystalline ceramics fluorescent tube (3) formation voidage.
9., by the high-power white light LED light source described in claim 1, it is characterised in that the wattage of high-power white LED light source is 50-300W, LED light effect is 120-180lm/W.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610128427.9A CN105762143A (en) | 2016-03-07 | 2016-03-07 | High-power white-light LED light source based on transparent ceramic fluorescent tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610128427.9A CN105762143A (en) | 2016-03-07 | 2016-03-07 | High-power white-light LED light source based on transparent ceramic fluorescent tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500071A (en) * | 2016-10-25 | 2017-03-15 | 江苏师范大学 | A kind of large power white light LED road-light light-source based on remote excitation technology |
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| CN106500071A (en) * | 2016-10-25 | 2017-03-15 | 江苏师范大学 | A kind of large power white light LED road-light light-source based on remote excitation technology |
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Application publication date: 20160713 |