CN104728644B - LED light supplementing lamp bead - Google Patents
LED light supplementing lamp bead Download PDFInfo
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- CN104728644B CN104728644B CN201510166432.4A CN201510166432A CN104728644B CN 104728644 B CN104728644 B CN 104728644B CN 201510166432 A CN201510166432 A CN 201510166432A CN 104728644 B CN104728644 B CN 104728644B
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- red fluorescence
- fluorescence powder
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Luminescent Compositions (AREA)
- Led Device Packages (AREA)
Abstract
The invention relates to an LED light supplementing lamp bead. The LED light supplementing lamp bead comprises a blue-light LED chip (1), binding agents and red fluorescent powder (2). The surface of the blue-light LED chip (1) is coated with the red fluorescent powder (2) through the binding agents. The red fluorescent powder (2) is made of MeXTiF6:Mn<4+>, wherein Me is K, Na, Li, Ca or Mg, and X is correspondingly two or one; the base materials of the red fluorescent powder (2) are MeXTiF6, the content proportion Mn at.% of Mn elements replacing Ti elements in the base materials MeXTiF6 is larger than 0 at.% and smaller than 20.0 at.%. The LED light supplementing lamp bead is small in power consumption, easy to control and even in light supplementing, and the high-proportion useful red and blue light can be obtained.
Description
Technical field
The present invention relates to light filling control device, more particularly to a kind of LED light supplement lamp pearl.
Background technology
With the great demand in terms of economic level, the raising of quality of life, agricultural and flowers so that greenhouse gardening and room
Interior cultivating technology is developed rapidly.But because booth and interior lack sunlight, many area haze weathers in addition, vegetation illumination is tight
Weight is not enough, and vegetation growth development receives serious obstruction.In this regard, at present generally using LED as supplementary light source.LED lamp
Have the advantages that small volume, power consumption are low, pollution-free, safe and reliable, its electrical-optical conversion efficiency is also significantly larger than sodium vapor lamp, Halogen light etc.
Other plant supplementary lighting sources, using the teaching of the invention it is possible to provide more efficient artificial plant illumination.It was found that from LED as light compensating lamp, can carry
The growth rate of high Caulis et Folium Lactucae Sativae, photosynthetic rate are up to more than 20%.
At present, existing various LEDs are sold as light supplementing lamp for plants on market, but they mostly adopt red light chips lamp bead
Carry out placement to realize light filling by different proportion with the combination of blue chip lamp bead.The ratio of red blue light need to be such as adjusted in its design
Example, then need number and the distribution for resetting HONGGUANG lamp bead and blue light lamp bead, thus adjust it is photochromic be inconvenient, and red blue light
Ratio can only by a certain percentage be worth regulation and control；And because its design is that the light sent based on two kinds of LED carries out complementation, therefore can exist
The blue, homogeneity question of HONGGUANG, i.e., due to due to lighting angle so that it is many that some local bi-coloured lights are overlapped, and some
It is local then overlap it is less, the uneven, range of exposures for causing plant light compensation covers not enough（Lamp bead range of exposures is usually
120°）, the utilization rate of light is high, have impact on the growth promoter of plant.
The content of the invention
It is an object of the invention to provide a kind of LED light supplement lamp pearl, the LED light supplement lamp pearl small power consumption, it is easy to regulation and control, light filling
Uniformly, a high proportion of useful red blue light can be obtained.
The object of the present invention is achieved like this：
A kind of LED light supplement lamp pearl, it is characterised in that：It includes blue-light LED chip, binding agent and red fluorescence powder；Institute
State the Jing binding agent effects of blue-light LED chip surface and be coated with the red fluorescence powder；The red fluorescence powder is consisted of
MeXTiF6:Mn4+, wherein Me can be for K, Na, Li plasma or for Ca, Mg plasma, and X phases should be 2~1；The red fluorescence
The substrate of powder is MeXTiF6, Mn elements replacement substrate MeXTiF6The content ratio of middle Ti elements is 0 at.% ＜ Mn at.% ＜
20.0 at.%。
The excitation peak of above-mentioned red fluorescence powder is 460 nm ± 10nm and 365 nm ± 10 nm, and its emission spectrum exists
Broadband emission between 580~660 nm：There are the emission peak of five intersections, respectively 590 nm ± 2 nm, 604 nm ± 2
Nm, 616 nm ± 2 nm, 635 nm ± 2 nm and 650 nm ± 2 nm, wherein highest peak are 635 nm ± 2 nm,
And a width of 10 nm ± 2 nm of half-peak of highest peak.Its excitation peak be~460 nm and 365 nm, can with LED blue chips and
The luminous matching of mercury vapour.
Above-mentioned red fluorescence powder is with MeXTiF6For substrate, KMnO4For raw material, HF is solvent, and is carried part is added with
It is obtained for reaction under conditions of agent and reducing agent；Wherein, the part provides agent and may be selected to be KF, NaF, Li2CO3、
Na2CO3Deng；The reducing agent may be selected to be H2O2, methanol, ethanol, ascorbic acid etc..
Above-mentioned red fluorescence powder particular by：At normal temperatures and pressures, by MeXTiF6、KMnO4, part provide agent be initially charged
In HF solution, it is stirring evenly and then adding into reducing agent and is reacted, after question response is finished, then Jing sucking filtration, with methanol, ethanol or acetone
It is dry and obtained Deng organic solvent cleaning.Wherein, the part provides agent and may be selected to be KF, NaF, Li2CO3、Na2CO3Deng；
The reducing agent may be selected to be H2O2, methanol, ethanol, ascorbic acid etc., and the consumption of each reaction mass is according to mol ratio
MeXTiF6：KMnO4：Part provides agent：Reducing agent：HF =1：0.1~0.5：0.1~1:0.1~1:1~500 is matched somebody with somebody
Put.
Above-mentioned binding agent selects to be AB glue, for example, concrete to may be selected routinely to encapsulate the DOW CORNING 6551AB glue for using, and institute
It is red fluorescence powder that the consumption of red fluorescence powder and the AB glue is stated according to weight ratio：A glue：B glue=3~5：0.4~0.6：1.90
~2.10 are configured.Additionally, can also adopt other traditional binders that encapsulation is used.
Above-mentioned LED light supplement lamp pearl, it also includes shell and wire.Wherein, shell may be selected to be cabinet.
The invention has the advantages that：
LED light supplement lamp pearl in the present invention, using blue-light LED chip（420~500nm wave bands）Excite homemade redness glimmering
Light powder, obtains 634nm or so HONGGUANG broadband emissions, and then has obtained a high proportion of useful red blue complex light, drastically increases
Utilization rate of the light normal complexion of light to light, reduces light filling illumination power consumption；Compared with the lamp bead of commercial Nitride phosphor encapsulation, should
LED light supplement lamp pearl greatly reduces useless gold-tinted ratio, by contrast, integral and calculating, has lacked about 47% or so gold-tinted；The LED is mended
The red blue complex light of light lamp bead transmitting, equably sends from fluorescent material surrounding, and range of exposures is more than common 120 °, almost
180 °, lighting angle and illumination coverage greatly, substantially increase the uniformity of light filling, for being beneficial to plant during plant light compensation
Growth；And because in the case where different electric currents are powered, the intensity of red blue launching light is different, the increasing that subtracts is just presented, for example from
In accompanying drawing it can be seen that electric current from 50mA increase to 350mA when, blue light is remarkably reinforced, and HONGGUANG substantially weakens, and is so achieved that
By the ratio and intensity that change the size of electric current to continuously adjust red blue light, the growth promoter of plant different phase is promoted.
Description of the drawings
Fig. 1 is the XRD spectra of the red fluorescence powder described in embodiment 1 in LED light supplement lamp pearl.
Fig. 2 is the EDS spectrograms of the red fluorescence powder described in embodiment 1 in LED light supplement lamp pearl.
Fig. 3 is the exciting light spectrogram of the red fluorescence powder described in embodiment 1 in LED light supplement lamp pearl.
Fig. 4 is the launching light spectrogram of the red fluorescence powder described in embodiment 1 in LED light supplement lamp pearl.
Fig. 5 is the structural representation of LED light supplement lamp pearl described in embodiment 1.
Fig. 6 is the relative intensity of the red blue light that LED light supplement lamp pearl described in embodiment 1 is launched under the different functions of current
Detection figure.
Fig. 7 be LED light supplement lamp pearl described in embodiment 1 and using commercially available commercial red fluorescence powder encapsulation lamp bead it is luminous
Spectrum.
Fig. 8 is the EDS spectrograms of the red fluorescence powder described in embodiment 2 in LED light supplement lamp pearl.
Fig. 9 is the exciting light spectrogram of the red fluorescence powder described in embodiment 2 in LED light supplement lamp pearl.
Figure 10 is the launching light spectrogram of the red fluorescence powder described in embodiment 2 in LED light supplement lamp pearl.
Specific embodiment
It is below preferred embodiments of the present invention, and is not intended to limit protection scope of the present invention.
Embodiment 1
As shown in Fig. 1~7：A kind of LED light supplement lamp pearl, it includes blue-light LED chip 1, DOW CORNING 6551AB glue, redness
Fluorescent material 2, cabinet 3 and wire 4；Its inside of cabinet 3 arranges blue-light LED chip 1, and the surface of blue-light LED chip 1 applies
The mixture of DOW CORNING 6551AB glue and red fluorescence powder 2 is covered with, and the two ends of blue-light LED chip 1 are connected with wire 4；It is red
The consumption of fluorescent material and DOW CORNING 6551AB glue is red fluorescence powder according to weight ratio：A glue：B glue=3：0.4：1.90 matched somebody with somebody
Put；Its red fluorescence powder consists of K2TiF6:Mn4+；Understand with reference to accompanying drawing 1,2,3 and 4：The main body of the red fluorescence powder crystal
Structure is substrate K2TiF6, its Mn elements replacement substrate K2TiF6The content ratio of middle Ti elements is 5.7 at.%, and its excitation peak is
463.4 nm and 363 nm, emission spectrum broadband emission between 580~660 nm：There is the emission peak of five intersections, respectively
590.0 nm, 603.6 nm, 616.2 nm, 634.6 nm and 650.4 nm, wherein highest peak are 634.6 nm, and highest peak
A width of 10 nm of half-peak；Red fluorescence powder in this example particular by：At normal temperatures and pressures, by K2TiF6、KMnO4, KF first adds
In entering HF solution, H is stirring evenly and then adding into2O2Reacted, after question response is finished, then Jing sucking filtration, cleaned with acetone, be dried and
It is obtained.Wherein, the consumption of each reaction mass is K according to mol ratio2TiF6：KMnO4：KF：H2O2：HF =1：0.5：1: 1 :
50 are configured.
The principle of the preparation reaction of its red fluorescence powder is in this example：
2KMnO4 + 2KF + 10HF + 3H2O2 → 2K2MnF6 + 8H2O + 3O2
While above-mentioned reaction is carried out, the Mn of generation4+With substrate K2TiF6It is also carried out reaction so that Mn4+It is micro to instead of
Substrate K2TiF6In Ti4+；The two reactions occur simultaneously, mutually promote, and finally realize in K2TiF6Middle introducing Mn4+And make
Obtained K2TiF6:Mn4+。
Understand shown in 6 and 7 with reference to the accompanying drawings, the LED light supplement lamp pearl in the present invention with using commercial commercially available red fluorescence powder envelope
The luminous of mutually isostructural LED lamp bead of dress is compared, and reduces 47% useless yellow component, improves the utilization rate of bluish red light；
And the LED light supplement lamp pearl in the present invention can continuously regulate and control red blue light relative intensity by adjusting electric current, meet plant different
The growth promoter in stage needs, and the such as stage of coming into leaves can increase blue light by adjusting electric current, and as a result the stage can be by adjusting electric current increasing
Many HONGGUANG.
Embodiment 2
As shown in figs. 8-10：A kind of LED light supplement lamp pearl, it includes blue-light LED chip, DOW CORNING 6551AB glue, redness
Fluorescent material, cabinet and wire；Its concrete structure is same as Example 1, and cabinet inside arranges blue-light LED chip, should
Blue-light LED chip surface-coated has the mixture of DOW CORNING 6551AB glue and red fluorescence powder, and blue-light LED chip two ends connect
There is wire；The consumption of its red fluorescence powder and DOW CORNING 6551AB glue is red fluorescence powder according to weight ratio：A glue：B glue=5：
0.6：2.10 configured；Its red fluorescence powder consists of K2TiF6:Mn4+；Understand with reference to accompanying drawing 8,9 and 10：The redness is glimmering
The agent structure of light powder crystal body is substrate K2TiF6, its Mn elements replacement substrate K2TiF6The content ratio of middle Ti elements is 5.0
At.%, its excitation peak be 465.2 nm and 362 nm, emission spectrum broadband emission between 580~660 nm：There are five intersections
Emission peak, respectively 590.4 nm, 603.2 nm, 616.4 nm, 634.8 nm and 650.4 nm, wherein highest peak is
634.8 nm, and a width of 10 nm of half-peak of highest peak；Red fluorescence powder in this example particular by：At normal temperatures and pressures, will
K2TiF6、KMnO4, KF be initially charged in HF solution, be stirring evenly and then adding into H2O2Reacted, after question response is finished, then Jing sucking filtration,
Cleaned with acetone, it is dry and obtained.Wherein, the consumption of each reaction mass is K according to mol ratio2TiF6：KMnO4：KF：H2O2：
HF =1：0.4：0.8:0.8:100 are configured.
Embodiment 3
A kind of LED light supplement lamp pearl, it is included outside blue-light LED chip, DOW CORNING 6551AB glue, red fluorescence powder, plastics
Shell and wire；Its concrete structure is same as Example 1, and cabinet inside arranges blue-light LED chip, the blue-light LED chip table
Face is coated with the mixture of DOW CORNING 6551AB glue and red fluorescence powder, and blue-light LED chip two ends are connected with wire；It is red
The consumption of fluorescent material and DOW CORNING 6551AB glue is red fluorescence powder according to weight ratio：A glue：B glue=4：0.5：2.0 are configured；
Its red fluorescence powder consists of Na2TiF6:Mn4+；The agent structure of the red fluorescence powder crystal is substrate Na2TiF6, its Mn is first
Element replaces substrate K2TiF6The content ratio of middle Ti elements is 10.5 at.%, and its excitation peak is 465.5 nm and 366 nm, is launched
Spectrum broadband emission between 580~660 nm：Have five intersection emission peaks, respectively 591.0 nm, 604.2 nm,
616.4 nm, 635.8 nm and 650.4 nm, wherein highest peak are 635.8 nm, and a width of 10 nm of half-peak of highest peak；This example
In red fluorescence powder particular by：At normal temperatures and pressures, by Na2TiF6、KMnO4, NaF be initially charged in HF solution, stirring is equal
Methanol is added to be reacted after even, after question response is finished, then Jing sucking filtration, it is dry and obtained with ethanol purge.Wherein, it is each anti-
The consumption for answering material is Na according to mol ratio2TiF6：KMnO4：NaF：Methanol：HF =1：0.2：0.5:0.6:300 are configured.
Embodiment 4
A kind of LED light supplement lamp pearl, it is included outside blue-light LED chip, DOW CORNING 6551AB glue, red fluorescence powder, plastics
Shell and wire；Its concrete structure is same as Example 1, and cabinet inside arranges blue-light LED chip, the blue-light LED chip table
Face is coated with the mixture of DOW CORNING 6551AB glue and red fluorescence powder, and blue-light LED chip two ends are connected with wire；It is red
The consumption of fluorescent material and DOW CORNING 6551AB glue is red fluorescence powder according to weight ratio：A glue：B glue=4：0.6：1.9 are configured；
Its red fluorescence powder consists of CaTiF6:Mn4+；The agent structure of the red fluorescence powder crystal is substrate CaTiF6, its Mn is first
Element replaces substrate CaTiF6The content ratio of middle Ti elements is 12.5 at.%, and its excitation peak is 463.5 nm and 364 nm, is launched
Spectrum broadband emission between 580~660 nm：Have five intersection emission peaks, respectively 591.6 nm, 604.2 nm,
616.0 nm, 634.8 nm and 650.4 nm, wherein highest peak are 634.8 nm, and a width of 10 nm of half-peak of highest peak；This example
In red fluorescence powder particular by：At normal temperatures and pressures, by CaTiF6、KMnO4、CaF2In being initially charged HF solution, stirring is equal
Methanol is added to be reacted after even, after question response is finished, then Jing sucking filtration, cleaned with acetone, it is dry and obtained.Wherein, it is each anti-
The consumption for answering material is CaTiF according to mol ratio6：KMnO4：CaF2：Methanol：HF =1：1：0.5:0.6:100 are configured.
Claims (4)
1. a kind of LED light supplement lamp pearl, it is characterised in that：It includes shell（3）, wire（4）, blue-light LED chip（1）, bonding
Agent and red fluorescence powder（2）；The blue-light LED chip（1）Surface Jing binding agent effects are coated with the red fluorescence powder（2）；
The red fluorescence powder consists of MeXTiF6:Mn4+, wherein Me is K, Na, Li or for Ca, Mg, and X phases should be 2~1；It is described
The substrate of red fluorescence powder is MeXTiF6, Mn elements replacement substrate MeXTiF6The content ratio of middle Ti elements is 0 at.% ＜ Mn
The at.% of at.% ＜ 20.0；Described adhesive selects to be DOW CORNING 6551AB glue, and the use of the red fluorescence powder and the AB glue
Amount is red fluorescence powder according to weight ratio：A glue：B glue=3~5：0.4~0.6：1.90~2.10 are configured.
2. LED light supplement lamp pearl according to claim 1, it is characterised in that：The excitation peak of the red fluorescence powder is 460 nm
± 10nm and 365 nm ± 10 nm, its emission spectrum broadband emission between 580~660 nm：There is the transmitting of five intersections
Peak, respectively 590 nm ± 2 nm, 604 nm ± 2 nm, 616 nm ± 2 nm, 635 nm ± 2 nm and 650 nm
± 2 nm, wherein highest peak are 635 nm ± 2 nm, and a width of 10 nm ± 2 nm of half-peak of highest peak.
3. LED light supplement lamp pearl according to claim 1 or claim 2, it is characterised in that：The red fluorescence powder is with MeXTiF6For base
Matter, KMnO4For raw material, HF is solvent, and is being added with reaction under conditions of part provides agent and reducing agent and obtained；It is described
It is KF, NaF, Li that part provides agent2CO3Or Na2CO3；The reducing agent is H2O2, methanol, ethanol or ascorbic acid.
4. LED light supplement lamp pearl according to claim 1 or claim 2, it is characterised in that the red fluorescence powder particular by：
Under normal temperature and pressure, by MeXTiF6、KMnO4, part provide agent be initially charged in HF solution, being stirring evenly and then adding into reducing agent is carried out instead
Should, after question response is finished, then Jing sucking filtration, cleaned with methanol, ethanol or acetone, it is dry and obtained；The part provides agent
KF、NaF、Li2CO3Or Na2CO3；The reducing agent is H2O2, methanol, ethanol or ascorbic acid；The consumption of each reaction mass according to
Mol ratio is MeXTiF6：KMnO4：Part provides agent：Reducing agent：HF =1：0.1~0.5：0.1~1:0.1~1:1~500
Configured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510166432.4A CN104728644B (en) | 2015-04-10 | 2015-04-10 | LED light supplementing lamp bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510166432.4A CN104728644B (en) | 2015-04-10 | 2015-04-10 | LED light supplementing lamp bead |
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| CN104728644A CN104728644A (en) | 2015-06-24 |
| CN104728644B true CN104728644B (en) | 2017-05-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105505384B (en) * | 2015-12-03 | 2017-12-19 | 河北利福光电技术有限公司 | A kind of narrow band red light fluorescent powder and preparation method thereof |
| CN108461603B (en) * | 2018-05-03 | 2020-03-31 | 重庆文理学院 | LED lamp pearl of plant cultivation usefulness |
| CN109906799B (en) * | 2019-03-25 | 2021-06-22 | 中国科学院分子植物科学卓越创新中心 | Special high-efficient LED light source of artificial environment rice growth |
| CN112863317A (en) * | 2021-01-26 | 2021-05-28 | 南昌大学 | Optical experiment box with adjustable LED light source |
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| JP5680278B2 (en) * | 2009-02-13 | 2015-03-04 | シャープ株式会社 | Light emitting device |
| CN102719242B (en) * | 2012-05-29 | 2014-12-03 | 温州大学 | Fluoride-containing Mn<4+>-doped red-light material and preparation method thereof |
| CN102779927B (en) * | 2012-08-15 | 2014-12-24 | 内蒙古华延芯光科技有限公司 | White LED (light-emitting diode) and method for packaging same |
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