CN110224053A - A kind of LED light source and its preparation method and application and it is a kind of regulate and control the plant florescence method - Google Patents
A kind of LED light source and its preparation method and application and it is a kind of regulate and control the plant florescence method Download PDFInfo
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- CN110224053A CN110224053A CN201910373962.4A CN201910373962A CN110224053A CN 110224053 A CN110224053 A CN 110224053A CN 201910373962 A CN201910373962 A CN 201910373962A CN 110224053 A CN110224053 A CN 110224053A
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
-
- 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
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Computer Hardware Design (AREA)
- Wood Science & Technology (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Led Device Packages (AREA)
Abstract
The invention discloses a kind of LED light source and its preparation method and application and a kind of methods at regulation plant florescence, the LED light source includes blue chip and coated in the mixed fluorescent powder on blue chip, and mixed fluorescent powder includes red fluorescence powder and yellowish green fluorescent powder；The emission spectrum of LED light source includes blue and green light, feux rouges and far-red light, and the light energy ratio of blue and green light, feux rouges and far-red light is 5-15:10-35:50-70:1-5.More accurately plant florescence control may be implemented in it, makes the maximization that market value is realized with the plant of flower or fruit commodity value.
Description
Technical field
The invention belongs to plant illumination fields, and in particular to a kind of LED light source and its preparation method and application and a kind of
Regulate and control the method at plant florescence.
Background technique
In nature, the principal element for influencing flowering of plant has temperature and photoperiod.The flowering plant of nature is according to right
Photoperiod differential responses are divided into long-day plant, short-day plant and indeterminate plant.According to the Flowering mechanism of plant, can pass through
Regulate and control the photoperiod of plant, realizes the regulation to the plant florescence.Plant can be allowed not bloom in flowering naturally period, can also allow plant
Object is bloomed in non-natural flowering period.This by listing of avoiding the peak hour for that can be realized using colored and fruit as the plant of commodity value
The increase of value of the product.
Currently, the means at regulation plant florescence mainly adjust breeding and culturing technology, adjust temperature and regulation photoperiod.It is existing
The method of some regulation photoperiods mostly uses fluorescent lamp to carry out light filling, extends light application time.Such light filling mode can be certain
Meet the florescence control demand of part crop in degree, but there are bigger applied defects: (1) fluorescent lifetime is short, uses function
Rate is high；(2) spectrum is not accurate, meets the needs of crop is to a certain spectrum by enhancing light intensity, causes energy dissipation；(3) electric
Phototransformation efficiency is low, and the ratio that electric energy is converted to luminous energy is low, and energy utilization is insufficient.
In contrast, LED light source light quality is adjustable, the service life is long, light efficiency is high, small in size, and the light filling for being able to solve fluorescent lamp lacks
It falls into, regulates and controls particularly suitable for developing more accurately plant spectral, more power saving, regulating effect is also more preferable.
Summary of the invention
In view of the deficiencies of the prior art, an object of the present invention is to provide a kind of LED light source and preparation method thereof and answers
With the LED light source can be used for the regulation at plant florescence, and the present invention also provides a kind of methods at regulation plant florescence, using this
LED light source irradiates plant, can regulate and control the plant florescence, and long-day plant is promoted to bloom and short-day plant is inhibited to bloom.
The technical solution adopted by the present invention is that: a kind of LED light source, LED light source include blue chip and be coated in blue light
Mixed fluorescent powder on chip, mixed fluorescent powder include red fluorescence powder and yellowish green fluorescent powder.
Mixed fluorescent powder generates fluorescence under the excitation for the blue light that blue chip issues.
Preferably, the emission spectrum of LED light source includes blue and green light, feux rouges and far-red light, blue and green light, feux rouges and remote
The light energy ratio of feux rouges is 5-15:10-35:50-70:1-5.
It is furthermore preferred that the emission spectrum of LED light source includes blue and green light, feux rouges and far-red light, blue and green light, feux rouges and
The light energy ratio of far-red light is 12-14:25-35:50-60:3-5.
Most preferably, the emission spectrum of LED light source includes blue and green light, feux rouges and far-red light, blue and green light, feux rouges and
The light energy ratio of far-red light is 13:27:57:3 or 12:32:52:4.
Preferably, in mixed fluorescent powder, the weight ratio of red fluorescence powder and yellowish green fluorescent powder is 1.5-3:3-5.
Most preferably, in mixed fluorescent powder, the weight ratio of red fluorescence powder and yellowish green fluorescent powder is 2.08:3.9.
Preferably, red fluorescence powder is nitride red fluorescent powder.
Preferably, the wavelength of red fluorescence powder is 610-640nm；It is furthermore preferred that the wavelength of red fluorescence powder is 630nm.
Preferably, red fluorescence powder selects the RH630GE or R-630BHG of million photoelectricity of rising sun production.
Preferably, yellowish green fluorescent powder is aluminate yellowish green fluorescent powder.
Preferably, the wavelength of yellowish green fluorescent powder is 530-540nm；It is furthermore preferred that the wavelength of yellowish green fluorescent powder is
531nm or 540nm.
Preferably, yellowish green fluorescent powder selects the BG531C or YG-540L of million photoelectricity of rising sun production.
Preferably, the emission wavelength of blue chip is 430-460nm.It is furthermore preferred that the emission wavelength of blue chip is
450-460nm.Most preferably, the emission wavelength of blue chip is 452.6-455nm.
Preferably, the emission spectrum range of LED light source is 380-780nm, wherein 380-500nm is blue spectrum section,
500-600nm is green spectrum section, and 600-700nm is red-light spectrum section, and 700-780nm is far-red light spectrum range.
Preferably, the lower the spectral energy in far-red light region the better.
Preferably, in the emission spectrum of LED light source, peak wavelength 600-780nm, the half-peak band of the spectrum of red light region
Wide (FWHM) range is≤90nm, colour temperature 1000-3000K.
It is furthermore preferred that in the emission spectrum of LED light source, peak wavelength 600-680nm, the half-peak of the spectrum of red light region
Bandwidth (FWHM) range is 80-85nm, colour temperature 1500-1700K.
Red energies in the emission spectrum of LED light source are higher, and colour temperature will be lower, and low color temperature can promote the light in plant
Quick pigment is converted into Pfr type by Pr type, Pfr/Pr ratio is increased, to can promote long day in the period of the short photoperiod naturally
According to blooming for plant, blooming for short-day plant can also be inhibited.
The preparation method of the LED light source, comprising the following steps: by red fluorescence powder, yellowish green fluorescent powder and bonding
Glue mixes, and on the surface coated in blue chip, obtains LED light source.
Preferably, adhesive glue is methyl silicone rubber and/or phenyl polysiloxane.
Preferably, adhesive glue is methyl silicone rubber, including A glue and B glue, and A glue selects the BQ-4398A of long abundant electronics production,
B glue selects the BQ-4398B of long abundant electronics production.
Preferably, the weight ratio of A glue and B glue is 5-10:1-2.It is furthermore preferred that the weight ratio of A glue and B glue is 5:1.
Preferably, adhesive glue is phenyl polysiloxane, including A glue and B glue, and A glue selects the KY-5242A of long abundant electronics production,
B glue selects the KY-5242B of long abundant electronics production.
Preferably, the weight ratio of A glue and B glue is 1-2:10-20.It is furthermore preferred that the weight ratio of A glue and B glue is 1:10.
Preferably, the weight ratio of mixed fluorescent powder and adhesive glue is 0.4-3:5-12.It is furthermore preferred that mixed fluorescent powder and viscous
The weight ratio for closing glue is 0.598:6 or 2.99:11.
The LED light source application interim in regulation plant flowers.
Preferably, application of the LED light source in the florescence of regulation long-day plant and/or short-day plant.
In one or more embodiments, the LED light source application interim in regulation Pitaya Flower.
In one or more embodiments, application of the LED light source in regulating florescence of chrysanthemum.
Preferably, LED light source is for light filling and/or top light filling between the strain of plant.
A method of the regulation plant florescence irradiates plant using the LED light source.
Preferably, a method of the regulation plant florescence is received using the florescence signal of the LED light source irradiation plant
Region carries out light filling.
The florescence signal receiving area of plant refers to the region in plant where flower, can be according to the florescence signal of plant
The position of receiving area determines the light filling mode for needing to use.If florescence signal receiving area mainly among plant, uses
Light filling between strain；If the florescence signal receiving area of plant at the top of plant, uses top light filling；If the complete stool of plant has flower
Phase signal receiving area, then according to the size of plant and specific plantation scene, using suitable light filling mode.
Preferably, LED light source is the LED light source of full angle and/or directional lighting.
Preferably, the LED light source to be shone using full angle is for light filling between strain.
Preferably, top light filling is used for using the LED light source of directional lighting.
In one or more embodiments, the LED light source is for light filling between the strain of dragon fruit.Preferably, using complete
The luminous LED light source of angle is for light filling between the strain of dragon fruit.
In one or more embodiments, the LED light source is used for the top light filling of chrysanthemum.Preferably, using orientation
Luminous LED light source is used for the top light filling of chrysanthemum.
Preferably, the mode of light filling are as follows: daily light filling 2-10 hours, continuous light filling 10-50 days.
In one or more embodiments, for light filling between the strain of dragon fruit, the mode of light filling are as follows: shone using full angle
LED light source, daily light filling 8 hours, continuous light filling 16 days.
In one or more embodiments, for the top light filling of chrysanthemum, the mode of light filling are as follows: using directional lighting
LED light source, daily light filling 4 hours, continuous light filling 40 days.
Special spectrum influences flowering of plant: in the flower induction of plant, phytochrome plays important role.It is photosensitive
Pigment is a kind of absorption feux rouges-far-red light reversible transformation light receptor (chromoprotein matter).Pr is red light absorption type, and there are also one
Kind Pfr is far-red light absorption-type.Phytochrome Pr type has absorption maximum at 660~665nm, and Pfr type is at 725~730nm
There is absorption maximum, closer to peak wavelength, the absorption value of phytochrome is higher.After irradiating feux rouges, Pr type is converted into Pfr type；Phase
Instead, after irradiating far-red light, Pfr type is converted into Pr type；Darkling Pfr type can also be reversed spontaneously as Pr type.
For long-day plant, bloom and need higher Pfr/Pr ratio, in the period of the short photoperiod naturally in, improve
The spectral energy of red light region reduces the spectral energy in far-red light region, and Pr type can be promoted to be converted into Pfr type, increases Pfr/
Pr ratio, to promote blooming for long-day plant.
For short-day plant, bloom and need lower Pfr/Pr ratio, in the period of the short photoperiod naturally in, improve
The spectral energy of red light region reduces the spectral energy in far-red light region, and Pr type can be promoted to be converted into Pfr type, increases Pfr/
Pr ratio, to inhibit blooming for short-day plant.
The emission spectrum of LED light source of the invention includes blue and green light, feux rouges and far-red light.Wherein, blue and green light, red
The light energy of light and far-red light ratio is 5-15:10-35:50-70:1-5, and the energy of feux rouges is much larger than the energy of far-red light, incite somebody to action this
When the LED light source of invention is used to irradiate the florescence signal receiving area of plant, the phytochrome that can promote in plant is turned by Pr type
Pfr type is turned to, Pfr/Pr ratio is increased, so that blooming for long-day plant can be promoted in the period of the short photoperiod naturally,
It can inhibit blooming for short-day plant.
The penetration power of light can be improved in green light of the invention, is conducive to light and propagates in plant.
In conjunction with the florescence feature of plant, light filling is carried out using LED light source of the invention, plant can be made in flowering naturally
Phase does not bloom, and also plant can be made to bloom in non-natural flowering period.This, can for using colored and fruit as the plant of commodity value
By avoid the peak hour listing and realize the increase of value of the product.
Preferably, it is 1-10 μm of ol/m that LED light source, which is irradiated to the photon flux density of plant surface,2.s。
Control photon flux density can guarantee that plant normally receives the signal of light, and not will cause light intensity waste.
The mode of action of the light in the regulation at plant florescence is signal, it is not intended that the regulation of light intensity, energy at the florescence
In do not act on.Plant needs to meet for the reception of signal can just be sensed to work under basic light intensity.The present invention
Spectrum be precisely directed to the florescence feature of plant, can reduce the light intensity value on this basis, realize and complete to plant with lower power consumption
The florescence control of object.
Compared with prior art, the present invention having the following beneficial effects:
1. the characteristics of present invention is according to flowering of plant, the light energy ratio for developing a kind of spectrum is 5-15:10-35:50-70:
The LED light source of 1-5, it is suitable for the florescence controls of photaesthesia plant, in the period of the short photoperiod naturally, both can control short day
It does not bloom according to plant, long-day plant can also be promoted to bloom, for using flower or fruit as the plant production of value of the product,
The maximization of market value can be realized by florescence control；
2. LED light source of the invention can obtain the florescence control spectrum of accurate science, realizes and complete to plant with lower power consumption
The florescence control of object avoids passing through enhancing light intensity to meet the needs of crop is to a certain spectrum, reduces the waste of energy；
3. the preparation method of LED light source of the invention is simple, it is easy to accomplish industrialization is suitble to produce and answer on a large scale
With；
4. full angle can be selected to shine according to the flower position of different types of plant, the region of acceptance of inducement signal
And/or the LED light source of directional lighting is to meet the light demand of the plant of different flowering habit.
Detailed description of the invention
Fig. 1 is the launching light spectrogram of third group LED light source in embodiment 1.
Fig. 2 is the fitting structure schematic diagram of embodiment 1, and 1 is filament item, and 2 be glass stem, and 3 be glass bulb, and 4 be lamp
Head.
Fig. 3 be embodiment 1 strain between light filling scene schematic diagram.
Fig. 4 is the fitting structure schematic diagram of embodiment 2, and 1 is blister pack, and 2 be SMD light source, and 3 be driving power, and 4 are
Aluminum hull, 5 be lamp cap.
Fig. 5 is the top light filling scene schematic diagram of embodiment 2.
Specific embodiment
To facilitate the understanding of the present invention, it elaborates below with reference to embodiment to technical solution of the present invention, below
Description in elaborate many details to fully understand the present invention.
But the invention can be embodied in many other ways as described herein, those skilled in the art can be with
Similar improvement is done without violating the connotation of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
Unless otherwise defined, all technologies used herein and scientific term have and the common skill of fields of the present invention
The normally understood identical meaning of art personnel.When there is a conflict, the definition in this specification shall prevail.
Term as used herein:
Term "comprising" used herein, " comprising ", " having ", " containing " or its any other deformation, it is intended that covering
Non-exclusionism includes.For example, composition, step, method, product or device comprising listed elements are not necessarily limited to those and want
Element, but may include not expressly listed other elements or such composition, step, method, product or device it is intrinsic
Element.
Conjunction " by ... form " exclude any element that do not point out, step or component.If in claim,
This phrase will make claim closed, so that it is not included the material in addition to the material of those descriptions, but relative
Except customary impurities.When phrase " by ... form " be rather than immediately following theme in the clause that appears in claim main body after
When, only it is limited to element described in the clause；Other elements be not excluded the claim as a whole it
Outside.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit
When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range
Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open
When range " 1-5 ", described range should be interpreted as including range " 1-4 ", " 1-3 ", " 1-2 ", " 1-2 and 4-5 ", " 1-3
With 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range is intended to including its end value and at this
All integers and score in range.
"and/or" is used to indicate that one of illustrated situation or both may to occur, for example, A and/or B includes (A
And B) and (A or B).
Below with reference to embodiment, the present invention will be further described.
Embodiment 1
LED light source includes blue chip and coated on the mixed fluorescent powder on blue chip, and mixed fluorescent powder includes red
Color fluorescent powder and yellowish green fluorescent powder, red fluorescence powder are the R-630BHG of million photoelectricity of rising sun production, and yellowish green fluorescent powder is the rising sun million
The YG-540L of photoelectricity production.
The preparation method of the LED light source: red fluorescence powder, yellowish green fluorescent powder and adhesive glue are mixed, and are coated in indigo plant
On the surface of optical chip, LED light source is obtained.
Wherein, adhesive glue is methyl silicone rubber, including A glue and B glue, and A glue selects the BQ-4398A, B of long abundant electronics production
The weight ratio of the BQ-4398B that glue selects long abundant electronics to produce, A glue and B glue is 5:1.
Five groups of LED light sources are prepared by formula ratio shown in table 1.
1 five groups of LED light sources of table
The preparation of the luminous LED light source of full angle:
1, the technique of filament item, to filament Incoming Quality Control.2, the filament materials examined are box-packed good, magazine is put
Onto the automatic board of LED die bond.3, LED chip is fixed in ceramic strip with insulation bonded adhesives.4, bonding wire；With gold thread chip
P, N knot be connected on the positive and negative anodes of ceramic strip bracket；5, dot fluorescent powder.
Mixed fluorescent powder generates fluorescence under the excitation for the blue light that blue chip issues, and Fig. 1 is third group LED light source
Launching light spectrogram.
The LED light source is used for the florescence control of dragon fruit:
Dragon fruit (Classification system: Hylocereus undulatus Britt), Cactaceae, hylocereus platymiscium.Fire
Imperial fruit is full of nutrition, function is unique, it contains the rare vegetable albumin of general plant and anthocyanidin, vitamin abundant
And water-soluble dietary fiber.Dragon fruit belongs to cool fruit, and in its natural state, fruit is in summer and autumn maturation, sweet, succulence.
The annual 6-10 month is the time that dragon fruit concentrates listing, and the supply of goods is big and various fruits list competition, causes flue
Fruit is on the low side.April in November to the coming year is the bud dormant period of dragon fruit under field conditions (factors), is the result blank phase.Because
Dragon fruit belongs to long-day plant, and light application time is needed to be greater than certain duration, can just be yielded positive results, and the light of this period of time
It is ungratified according to condition.Using professional efficient flower forcing spectrum, flower forcing is carried out to dragon fruit by artificially feed, increases flue
Fruit bloom lot number, extend term.By artificially feed, the listing of avoiding the peak hour of dragon fruit is realized, form dragon fruit in market and price
On advantage.
Florescence control research is carried out to seven groups of dragon fruits, the local sunshine-duration is daily 10 hours, using above-mentioned five
Group LED light source (power 8.5w) carries out light filling between strain, and the photon flux density that LED light source is irradiated to plant surface is 8 μm of ol/
m2.s, daily continuous 8 hours of light filling, continuous light filling 16 days；6th group using fluorescent lamp, (Vietnam Rang Dong, power are
24w) light filling between progress strain, light filling mode are identical as first five set；7th group does not increase light filling, only receives natural lighting 10 small
When.Fig. 2 is the fitting structure schematic diagram of embodiment 1, Fig. 3 be embodiment 1 strain between light filling scene schematic diagram.Induction is observed after 16 days
The effect of bud, the results are shown in Table 2.
The effect of 2 floral bud induction of table
As shown in Table 2, the bud quantity under the conditions of natural lighting illustrates light filling processing for fire far less than light filling processing
Imperial fruit blooms with facilitation.In the quantity of vernalization, the 8.5wLED lamp of 2-4 group is significantly more than traditional fluorescent lamp；?
In energy conservation, LED light is compared with fluorescent lamp, every batch of power saving 64.58% per acre.It can be seen that LED light source of the invention is naturally short
The period of photoperiod can promote long-day plant to bloom, and all have apparent advantage in flower forcing effect and energy saving.
Embodiment 2
A kind of LED light source, including blue chip and coated on the mixed fluorescent powder on blue chip, mixed fluorescent powder packet
Red fluorescence powder and yellowish green fluorescent powder are included, red fluorescence powder is the R-630BHG of million photoelectricity of rising sun production, and yellowish green fluorescent powder is
The YG-540L of million photoelectricity of rising sun production.
The preparation method of the LED light source: red fluorescence powder, yellowish green fluorescent powder and adhesive glue are mixed, and are coated in indigo plant
On the surface of optical chip, LED light source is obtained.
Wherein, adhesive glue is phenyl polysiloxane, including A glue and B glue, and A glue selects the KY-5242A, B of long abundant electronics production
The weight ratio of the KY-5242B that glue selects long abundant electronics to produce, A glue and B glue is 1:10.
The weight of red fluorescence powder is 1.04g, and the weight of yellowish green fluorescent powder is 1.95g, and the weight of A glue is 1g, B glue
Weight is 10g.
Mixed fluorescent powder generates fluorescence, the emission wavelength of blue chip under the excitation for the blue light that blue chip issues
For 452.6-455nm, the emission spectrum of LED light source includes blue and green light, feux rouges and far-red light, blue and green light, feux rouges and remote
The light energy ratio of feux rouges is 12:32:52:4.
The preparation of the LED light source of directional lighting:
1) Incoming Quality Control is carried out to LED patch support；2) patch support of needs is dismantled packaging, dismantling packaging
Patch support is installed with charging tray, is put into 150 DEG C of ovens and is dehumidified；3) box-packed good good wet patch support materials are removed, magazine
It is put on the automatic board of LED die bond；4) LED chip is fixed in the cupulate bowl of patch support with insulation bonded adhesives；5) bonding wire is used
Gold thread is connected to P, N knot of chip the positive and negative anodes of patch support；6) dot fluorescent powder.
The LED light source is used for the florescence control of chrysanthemum:
Chrysanthemum (Dendranthema grandiflorum (Ramat) Kitam), composite family (Compositae) Chrysanthemum
(Dendranthema (DC.) Des Moul.) plant, is the traditional famous flower for originating in China, Cut Flower Chrysanthemum Morifolium is the four cut-flowers in the world
One of, yield occupies first of four big cut-flowers.Chrysanthemum belongs to short-day flowers, and the autumn chrysanthemum natural florescence is in the 10-11 month.
" refreshing horse " chrysanthemum is a kind of cutting flower variety of large-scale plantation, and current modes of reproduction mostly uses cutting propagation, is needed
Light filling is carried out in short-day period to cuttage seeding, inhibit bud differentiation, promote nutrient growth, reach in chrysanthemum plant height and cut
Flower stops light filling after requiring, growth of flower bud is open.Refreshing horse chrysanthemum is typical short-day plant, and short-day plant is just shorter
The plant to bloom could be developed under sunshine condition.For refreshing Ma Ju, if light application time is longer than 14.5 hours, chrysanthemum can be inhibited
Colored bud differentiation, that is, flowering time evening；If light application time is shorter than 14.5 hours, it is conducive to bud differentiation, promotes out
Flower.This feature of refreshing horse chrysanthemum growth, later in cultivation management it is extremely important.
Florescence control research is carried out to three groups of chrysanthemums, the sunshine-duration is daily 10 hours, July 28 with 3-4
Piece leaf be highly the cuttage seeding of 5-6cm is experiment seedling, and first group use at the top of the LED light source (power 8.5w) carries out
Light filling, the photon flux density that LED light source is irradiated to crown blade face is 3 μm of ol/m2.s, timing daily is in 22:00-2:00
Carry out 4 hours of light filling, continuous light filling 40 days；Second group is pushed up using energy-saving lamp (Vietnam Rang Dong, power 20w)
Portion's light filling, light filling mode is identical as first group, and the effective light spot area of LED light and energy-saving lamp is close, about 7m2；Third group does not increase
Add light filling, only receives 10 hours of natural lighting.Fig. 4 is the fitting structure schematic diagram of embodiment 2.Fig. 5 is the top of embodiment 2
Light filling scene schematic diagram.The situation of blooming of florists chrysanthemum seedling is observed after 40 days, the results are shown in Table 3.
The growing state of 3 florists chrysanthemum seedling of table
Compared to natural lighting, the chrysanthemum flowering time handled through light filling is slower, and Hua Jing is bigger, and just plant height when flower is higher,
For cut-flower, the commodity value of cut-flower is improved.LED light of the present invention is compared with energy-saving lamp, both on flowering time
It is close.And in energy consumption, LED light energy conservation 57.6%.In effect, the chrysanthemum plant handled through LED light light filling is in plant height, stem
Slightly, the plant handled through energy-saving lamp is superior in terms of flower diameter.It can be seen that LED light source of the invention is in the naturally short photoperiod
Period can inhibit short-day plant to bloom, the function and effect in the blossom-control technics of chrysanthemum Fresh Cutting flower, the raising of commodity value
Obviously, and more energy saving, energy saving conducive to cost is reduced.
Claims (10)
1. a kind of LED light source, which is characterized in that LED light source includes blue chip and glimmering coated in the mixing on blue chip
Light powder, mixed fluorescent powder include red fluorescence powder and yellowish green fluorescent powder；The emission spectrum of LED light source includes blue and green light, red
Light and far-red light, the light energy ratio of blue and green light, feux rouges and far-red light are 5-15:10-35:50-70:1-5.
2. LED light source according to claim 1, which is characterized in that in mixed fluorescent powder, red fluorescence powder and yellow green are glimmering
The weight ratio of light powder is 1.5-3:3-5.
3. LED light source according to claim 1, which is characterized in that the emission wavelength of blue chip is 430-460nm.
4. LED light source according to claim 1, which is characterized in that the emission spectrum range of LED light source is 380-780nm,
Wherein, 380-500nm is blue spectrum section, and 500-600nm is green spectrum section, and 600-700nm is red-light spectrum section,
700-780nm is far-red light spectrum range.
5. the preparation method of LED light source described in any one of -4 according to claim 1, which is characterized in that by red fluorescence powder,
Yellowish green fluorescent powder and adhesive glue mix, and on the surface coated in blue chip, obtain LED light source.
6. the application interim in regulation plant flowers of LED light source described in any one of -4 according to claim 1.
7. application according to claim 6, which is characterized in that LED light source is mended for light filling between the strain of plant and/or top
Light.
8. a kind of method at regulation plant florescence, which is characterized in that use LED light source of any of claims 1-4
Irradiate plant.
9. according to the method described in claim 8, it is characterized in that, using LED light source of any of claims 1-4
The florescence signal receiving area of plant is irradiated, light filling is carried out.
10. method according to claim 8 or claim 9, which is characterized in that LED light source is irradiated to the photon flux of plant surface
Density is 1-10 μm of ol/m2.s。
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