WO2020200326A1 - 全光谱led植物照明光源 - Google Patents

全光谱led植物照明光源 Download PDF

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WO2020200326A1
WO2020200326A1 PCT/CN2020/089158 CN2020089158W WO2020200326A1 WO 2020200326 A1 WO2020200326 A1 WO 2020200326A1 CN 2020089158 W CN2020089158 W CN 2020089158W WO 2020200326 A1 WO2020200326 A1 WO 2020200326A1
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chip
light
led chip
led
red
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PCT/CN2020/089158
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English (en)
French (fr)
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曹小兵
林金填
吴春海
李超
冉崇高
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旭宇光电（深圳）股份有限公司
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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
    • H01L33/501—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
    • 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
    • H01L33/52—Encapsulations
    • H01L33/54—Encapsulations having a particular shape

Definitions

  • the invention belongs to the field of plant lighting sources, and more specifically, relates to a full-spectrum LED plant lighting source.
  • Light Emitting Diode Light Emitting Diode
  • LED Light Emitting Diode
  • the LED plant lighting source in the prior art is generally composed of LEDs of several colors through proportional deployment to simulate the natural light spectrum in order to achieve the growth effect that can be achieved by sunlight.
  • fruits and vegetables still have pests and diseases. With modern people’s attention to food safety and health, pesticides applied in greenhouses or greenhouses are often not volatile.
  • the purpose of the present invention is to provide a full-spectrum LED plant lighting source to solve the problem in the prior art that pests and diseases generated during the growth of fruit and vegetable plants are only removed by pesticides.
  • the technical solution adopted by the present invention is to provide a full-spectrum LED plant lighting source, including a blue LED chip for emitting continuous blue light waves, a red LED chip for emitting continuous red light waves and Continuous green light wave green light LED chip, the full-spectrum LED plant lighting source also includes a near-ultraviolet light LED chip for emitting continuous near-ultraviolet light wave, a light source for preventing plant diseases and insect pests and controlling the blue LED chip, The red LED chip, the green LED chip and the near-ultraviolet LED chip work to simulate changes in daytime illumination and control the controller for preventing diseases and insect pests.
  • the light source for preventing diseases and insect pests includes a near ultraviolet light chip, a blue light chip, a red light chip, and a first fluorescent glue
  • the first fluorescent glue is encapsulated on the near ultraviolet light chip, the blue light chip and the red light
  • the first fluorescent glue contains the first yellow phosphor for the blue chip to excite and produce the first yellow phosphor with the emission peak wavelength between 460nm and 470nm, and for the red chip to excite and produce the emission peak wavelength between 645nm and 660nm.
  • the first red phosphor and the near-ultraviolet light chip to excite the near-ultraviolet phosphor with the emission peak wavelength between 369nm and 385nm.
  • the weight ratio of the first yellow phosphor is 68-75%
  • the weight ratio of the first red phosphor is 22-27%
  • the weight ratio of the near ultraviolet phosphor is 3-5%.
  • the weight ratio of the first yellow phosphor is 71%
  • the weight ratio of the first red phosphor is 25%
  • the weight ratio of the near ultraviolet phosphor is 4%.
  • the near-ultraviolet light chip is an LED chip for generating 365 nm light waves
  • the blue chip is an LED chip for generating 475 nm light waves
  • the red light chip is an LED chip for generating 610 nm light waves.
  • the light source for preventing diseases and insect pests includes a first chip for emitting peak wavelength between 460nm-470nm, a second chip for emitting peak wavelength between 645nm and 660nm, and a second chip for emitting peak wavelength between 369nm and 385nm.
  • the light mixing ratio of the first chip is 68-75%
  • the light mixing ratio of the second chip is 22-27%
  • the light mixing ratio of the third chip is 3-5%. %.
  • the blue LED chip includes a blue LED chip for emitting light with a wavelength of 430-435nm, a blue LED chip for emitting light with a wavelength of 436-490nm, and a blue LED chip for emitting light with a wavelength of 491-520nm .
  • the light mixing ratio of the red LED chip, the blue LED chip and the green LED chip emits light in a range of 4:1:1-9:1:1.
  • the full-spectrum LED plant lighting light source further includes a first packaging glue encapsulated in the blue LED chip, red LED chip, green LED chip and the near ultraviolet light chip, and the first packaging glue is made of
  • the yellow fluorescent powder and silica gel are uniformly mixed in a ratio of 3:1 to 6:1 and then defoamed.
  • the full-spectrum LED plant lighting source further includes a natural light source
  • the natural light source includes an LED blue chip, an LED red chip, and a second fluorescent glue
  • the second fluorescent glue is encapsulated in the LED blue chip and the On the LED red chip
  • the second fluorescent glue has a second yellow phosphor for the LED blue chip to excite and produce a second yellow phosphor with an emission peak wavelength between 460nm-470nm and for the LED red chip to excite and produce an emission peak
  • the present invention sets the controller by setting blue LED chips, red LED chips, green LED chips and near-ultraviolet LED chips.
  • ultraviolet light can be generated by the near ultraviolet LED chip to achieve full-spectrum coverage, so as to well illuminate plants and ensure plant growth; and set up a light source for preventing diseases and insect pests, In this way, plant diseases and insect pests can be prevented through light irradiation, while the use of pesticides can be avoided or reduced, and the food safety of plants can be ensured.
  • FIG. 1 is a schematic diagram of comparison between the spectrum of a full-spectrum LED plant lighting source provided by an embodiment of the present invention, the spectrum of an ordinary LED plant lighting source, and a typical daylight D40 standard spectral waveform.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more than two, unless specifically defined otherwise. The meaning of “several” is one or more than one, unless otherwise clearly defined.
  • the full-spectrum LED plant lighting source includes a blue LED chip for emitting continuous blue light waves, a red LED chip for emitting continuous red light waves, a green LED chip for emitting continuous green light waves, and a green LED chip for emitting continuous light waves.
  • Ultraviolet light wave near-ultraviolet LED chip, pest prevention light source and controller for pest control; controller is used to control blue LED chip, red LED chip, green LED chip and near-ultraviolet LED chip work to simulate daytime Light changes; at the same time, the controller controls the work of the light source for preventing diseases and insect pests to realize the prevention of plant diseases and insect pests.
  • the blue LED chip, red LED chip, and green LED chip are set to ensure good wavelength light for plant growth and achieve the light demand for plant growth; and near-ultraviolet light LED chips are set up to ensure that it can generate light when simulating sunlight Ultraviolet light meets the demand for full spectrum in plant growth.
  • the light source for preventing diseases and insect pests is set and controlled by a controller.
  • the light source for preventing diseases and insect pests can be controlled according to the different time of plant growth.
  • the light irradiation can realize the prevention of plant diseases and insect pests, ensure the good growth of plants, and avoid or reduce pesticides.
  • the use of edible enhance the edible safety of fruit and vegetable plant food.
  • the full-spectrum LED plant lighting source provided by the present invention is equipped with a blue LED chip, a red LED chip, a green LED chip and a near-ultraviolet LED chip, and a controller is arranged to realize the simulation of daytime
  • ultraviolet light can be generated by the near ultraviolet LED chip to achieve full-spectrum coverage, so as to illuminate the plants well and ensure the growth of the plants; and set up a light source for preventing diseases and insect pests, so that through the light irradiation, Realize the prevention of plant diseases and insect pests, avoid or reduce the use of pesticides, and ensure the safety of plant food.
  • the blue LED chip includes a blue LED chip for emitting light with a wavelength of 430-435nm, and a blue light for emitting light with a wavelength of 436-490nm. LED chips and blue LED chips for emitting light with a wavelength of 491-520nm. Therefore, the full-spectrum LED plant lighting source can emit continuous blue light in the wavelength range of 430-520 nm. Preferentially, there is one blue LED chip for emitting 430-435nm wavelength light, one blue LED chip for emitting 436-490nm wavelength light, and one blue LED chip emitting light with 491-520nm wavelength .
  • the green LED chip includes a green LED chip for emitting light with a wavelength of 520-525nm, and a green LED chip for emitting light with a wavelength of 526-550nm.
  • Light LED chip and green light LED chip for emitting light of 551-577nm wavelength can emit continuous green light in the wavelength range of 520-577 nm.
  • the red LED chip includes a red LED chip for emitting light with a wavelength of 660-665nm and a red LED chip for emitting light with a wavelength of 610-665nm Light LED chip. Therefore, the full-spectrum LED plant lighting source can emit continuous red light in the wavelength range of 610-665 nm.
  • the light mixing ratio of the red LED chip, the blue LED chip and the green LED chip emits light in the range of 4:1:1-9: 1:1, so that the controller can control the red LED chip, the blue LED chip and the green LED chip to better simulate the changing laws of sunlight.
  • the light mixing ratio of the red LED chip, the blue LED chip and the green LED chip is 6:1:1-9:1:1 to ensure a good lighting environment for plant growth.
  • the above-mentioned pest-proof light source includes a near-ultraviolet light chip, a blue light chip, a red light chip, and a first fluorescent glue.
  • the first fluorescent glue is encapsulated near On the ultraviolet light chip, the blue light chip and the red light chip, the first fluorescent glue has the first yellow phosphor for the blue chip to excite and produce the first yellow phosphor with the emission peak wavelength between 460nm-470nm, and the red light chip to excite the emission peak wavelength at 645nm
  • the first red phosphor between -660nm and the near-ultraviolet light chip excite to produce near-ultraviolet phosphor with peak emission wavelength between 369nm-385nm.
  • the first yellow phosphor is excited by the blue chip to produce light with a peak wavelength of 460nm-470nm, the red chip excites the first red phosphor to produce light with a peak wavelength of 645nm-660nm, and the near-ultraviolet light chip excites the production of near-ultraviolet phosphor It emits light with a peak wavelength of 369nm-385nm for mixed irradiation, thereby eliminating plant pests and realizing plant disease prevention.
  • the weight of the first yellow phosphor accounts for 68-75%, and the weight of the first red phosphor accounts for 22-27%.
  • the weight ratio of ultraviolet phosphor is 3-5%. That is, among the phosphors of the first fluorescent glue: the first yellow phosphor accounts for 68-75% by weight, the first red phosphor accounts for 22-27% by weight, and the near ultraviolet phosphor accounts for 3-5% by weight.
  • the first yellow phosphor accounts for 71% by weight
  • the first red phosphor accounts for 25% by weight
  • the near ultraviolet phosphor accounts for 4% by weight. That is, among the phosphors in the first fluorescent glue: the first yellow phosphor accounts for 71% by weight, the first red phosphor accounts for 25% by weight, and the near-ultraviolet phosphor accounts for 4% by weight, so that the mixed light Among them, the light wavelength of 460nm-470nm accounts for 71%, the light wavelength of 645nm-660nm accounts for 25%, and the light wavelength of 369nm-385nm accounts for 4% to ensure that plants grow well and destroy plants. Pests, to achieve plant disease prevention and pest control.
  • the near-ultraviolet light chip is an LED chip for generating 365nm light waves, and the near-ultraviolet light source is excited by the 365nm lightwave LED chip Phosphors can make the produced light have a wider coverage between the wavelength emission peak of 369nm-385nm, and improve energy efficiency.
  • the blue chip is an LED chip used to generate 475nm light waves. Exciting the first yellow phosphor by the 475nm lightwave LED chip can make the produced light cover a wider range of wavelength emission peak between 460nm-470nm and improve energy utilization.
  • the red light chip is an LED chip used to generate 610nm light waves. Exciting the first red phosphor by the 610nm light wave LED chip can make the produced light cover a wider range of wavelength emission peak between 645nm-660nm and improve energy utilization.
  • other near-ultraviolet light chips may be used to excite the near-ultraviolet phosphor
  • other blue light chips may be used to excite the first yellow phosphor
  • other red light chips may be used to excite the first red phosphor.
  • the above-mentioned pest-proof light source includes a first chip for emitting a peak wavelength between 460nm and 470nm, and a first chip for emitting a peak wavelength between 645nm and 645nm.
  • the mixing ratio of the first chip is 68-75%, and the mixing ratio of the second chip is 22-27%.
  • the third chip's mixed light accounted for 3-5%, to ensure that plants grow well, eliminate plant pests, and achieve plant pest control.
  • the light mixing ratio of the first chip is 71%
  • the light mixing ratio of the second chip is 25%
  • the light mixing ratio of the third chip is 4% to ensure that plants grow well and eliminate plant pests. Realize plant disease and insect pest control.
  • the full-spectrum LED plant lighting source of the present invention has conducted specific experiments in the prevention and control of plant diseases and insect pests. In the same greenhouse and under the same growth conditions, 200 plants of different fruits and vegetables are planted separately for prevention Pest control experiment.
  • the full-spectrum LED plant lighting source of the present invention is applied to the prevention and control of plant diseases and insect pests of fruits and vegetables. Compared with the case of ordinary light environment and without spraying pesticide plants, for 200 different plants, the number of plants with plant diseases and insect pests after 3 months of growth Comparing the data table, this table mainly counts the number of plants with more than 30% of plant leaves that have disease and insect gaps:
  • the full-spectrum LED plant lighting source also includes a natural light source, which includes a blue LED chip, a red LED chip, and a second fluorescent glue.
  • the two fluorescent glue is encapsulated on the blue LED chip and the red LED chip, and a natural light source is set, which can better promote plant growth when illuminating plants.
  • the second fluorescent glue has the second yellow phosphor for the LED blue chip to excite and produce the second yellow phosphor with the emission peak wavelength between 460nm-470nm and for the LED red chip to excite the second red phosphor with the emission peak wavelength between 645nm-660nm ;
  • the second yellow phosphor accounts for 68%-79% by weight, and the second red phosphor accounts for 21%-32% by weight; so that the natural light source is at about 2700K to 6000K CCT (correlated Color temperature (correlated color temperature) has a general color rendering index greater than 95, and has a full spectrum close to natural light.
  • the above-mentioned blue LED chip is an LED chip for emitting light with a wavelength of 470nm, and the second yellow phosphor can be excited by the LED chip with a light of 470nm wavelength.
  • the produced light covers a wider range of wavelength emission peak between 460nm-470nm, closer to the corresponding spectrum of natural light, and improves energy efficiency.
  • the red LED chip is an LED chip used to emit light with a wavelength of 630nm. Exciting the second red phosphor by the LED chip with a wavelength of 630nm can make the produced light cover a wider range of wavelength emission peak between 645nm-660nm and closer The corresponding spectrum of natural light improves energy efficiency.
  • Figure 1 a schematic diagram of the comparison of the spectral characteristics of the full-spectrum LED plant lighting source of the present invention with the spectrum of ordinary LED plant lighting sources and the typical daylight D40 standard spectral waveform.
  • the abscissa is the wavelength, the unit is nm; the ordinate is the power Distribution coefficient.
  • line a is the typical daylight D40 standard spectral power distribution curve
  • line b is the spectral power distribution curve of the full-spectrum LED plant lighting source of the present invention
  • line c is the spectral power distribution curve of the ordinary LED plant lighting source.
  • the spectral characteristics of the typical daylight D40 standard spectrum have a spectral power distribution curve with a continuous light band from red to blue (400-700nm), which is similar to the light power distribution of sunlight at the same color temperature.
  • the full-spectrum LED plant lighting source of the present invention simulates the natural light spectrum (with the same color temperature) and removes harmful ultraviolet and infrared rays in the natural light. Compared with natural light, the integrity of the full-spectrum LED plant lighting source of the present invention should be close to the similarity of the natural light spectrum. Compared with ordinary LED plant lighting sources, the full-spectrum LED plant lighting source of the present invention reduces the blue peak value and increases the visible light band. The continuity of LED lighting effectively improves the quality of LED lighting. Better suitable for plant lighting.
  • the full-spectrum LED plant lighting source also includes those packaged in blue LED chips, red LED chips, green LED chips, and near-ultraviolet light chips.
  • the first packaging glue, the first packaging glue is formed by uniformly mixing yellow fluorescent powder and silica gel in a ratio of 3:1 to 6:1 and then defoaming to form a high-brightness white LED light source with a correlated color temperature of about 8000K to enhance white light brightness.
  • the ratio of yellow fluorescent powder to silica gel is the weight ratio.
  • the full-spectrum LED plant lighting source also includes a blue LED chip, a red LED chip, a green LED chip, and a near-ultraviolet LED chip.
  • the second encapsulating glue on the upper side, the second encapsulating glue is formed by uniformly mixing fluorescent powder and silica gel and then degassing.
  • the fluorescent powder includes yellow fluorescent powder and red fluorescent powder.
  • the ratio of yellow phosphor to red phosphor is 1:1.
  • the second encapsulating glue is formed by uniformly mixing fluorescent powder and silica gel in a ratio of 3:1 to 6:1 and then defoaming, which ensures good luminous efficiency.
  • the ratio of fluorescent powder to silica gel is the weight ratio.
  • the composition formula of the red phosphor is: CaAlSi(ON)3:Eu, the peak wavelength of the emission spectrum is 620-650nm, and the half-value width is 105-135nm.
  • the yellow phosphor is mainly YAG yttrium aluminum garnet, and its chemical formula is Y3Al5O12:Ce3+.
  • the white LED made of this phosphor has high lumen efficiency, but the color rendering index is low due to the less red light component of the emission spectrum.
  • the prior art yellow phosphors such as Ca- ⁇ -SiAlON with Eu2+ as the emission center and LaSr2AlO5 with Ce3+ as the emission center can also be used.
  • nitride phosphor can be used (Sr,Ca)SiAlN3:Eu and epoxy resin are mixed uniformly, and then coated with the near-ultraviolet phosphor mixture on the near-ultraviolet LED chip.
  • the full-spectrum LED plant lighting source of the present invention is applied to the growth of fruit and vegetable plants, and promotes plant growth. Compared with the comparison data table under ordinary lighting environment:
  • the full-spectrum LED plant lighting source of the present invention can significantly increase the growth rate of fruit and vegetable plants when it is applied to the lighting of fruit and vegetable plants.

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  • Microelectronics & Electronic Packaging (AREA)
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Abstract

一种全光谱LED植物照明光源，包括蓝光LED芯片、红光LED芯片、绿光LED芯片、近紫外光LED芯片、用于病虫害防治的防病虫害光源和控制蓝光LED芯片、红光LED芯片、绿光LED芯片及近紫外光LED芯片工作以模拟日间光照变化并控制防病虫害光源工作的控制器。通过设置控制器控制蓝光LED芯片、红光LED芯片、绿光LED芯片和近紫外光LED芯片模拟日间光照变化，而在模拟午间光照时，可以通过近紫外光LED芯片产生紫外光，以实现全光谱覆盖，以良好对植物进行照明，保证植物生长；并设置防病虫害光源，从而通过光线照射，来实现植物的防病虫害，而避免或减少农药使用，保证植物食用安全性。

Description

全光谱LED植物照明光源 技术领域
本发明属于植物照明光源领域，更具体地说，是涉及一种全光谱LED植物照明光源。
 背景技术
发光二极管（Light Emitting Diode，简称LED）。随着LED照明光谱技术的长足发展，目前已有采用芯片加荧光粉的模拟自然光光谱的全光谱LED照明产品上市，以实现在可见光波段的连续，突出健康、绿色的理念。现有技术的LED植物照明光源一般由几种颜色的LED通过比例调配组成，模拟自然光光谱，以期望实现达到太阳光照所能达到的生长效果。然而，在果蔬类植物在生长过程中，由于土壤等原因，果蔬仍然会出现病虫害，随着现代人对于食品安全与身体健康的重视，温室或大棚栽培中施加农药往往不易挥发，农药不仅在在果蔬上有残留，而且还会被进入温室或大棚的工作人员吸入呼吸道，引起疾病，严重者甚至致癌。当前全光谱LED植物照明光源难以实现对果蔬类植物生长过程进行除病虫害的目的。
 技术问题
本发明的目的在于提供一种全光谱LED植物照明光源，以解决现有技术中存在的果蔬类植物生长过程产生的病虫害仅使用农药除去的问题。
 技术解决方案
为实现上述目的，本发明采用的技术方案是：提供一种全光谱LED植物照明光源，包括用于发出连续蓝光光波的蓝光LED芯片、用于发出连续红光光波红光LED芯片和用于发出连续绿光光波绿光LED芯片，该全光谱LED植物照明光源还包括用于发出连续近紫外光光波的近紫外光LED芯片、用于病虫害防治的防病虫害光源和控制所述蓝光LED芯片、所述红光LED芯片、所述绿光LED芯片及所述近紫外光LED芯片工作以模拟日间光照变化并控制防病虫害光源工作的控制器。
进一步地，所述防病虫害光源包括近紫外光芯片、蓝光芯片、红光芯片以及第一荧光胶，所述第一荧光胶封装于所述近紫外光芯片、所述蓝光芯片及所述红光芯片上，所述第一荧光胶中具有供所述蓝光芯片激发生产发射峰值波长在460nm-470nm之间的第一黄色荧光粉、供所述红光芯片激发生产发射峰值波长在645nm-660nm之间的第一红色荧光粉和供所述近紫外光芯片激发生产发射峰值波长在369nm-385nm之间的近紫外荧光粉。
进一步地，所述第一黄色荧光粉重量占比为68-75％，所述第一红色荧光粉重量占比为22-27％，所述近紫外荧光粉重量占比为3-5%。
进一步地，所述第一黄色荧光粉重量占比为71％，所述第一红色荧光粉重量占比为25％，所述近紫外荧光粉重量占比为4%。
进一步地，所述近紫外光芯片为用于产生365nm光波的LED芯片，所述蓝光芯片为用于产生475nm光波的LED芯片，所述红光芯片为用于产生610nm光波的LED芯片。
进一步地，所述防病虫害光源包括用于发射峰值波长在460nm-470nm之间的第一芯片、用于发射峰值波长在645nm-660nm之间的第二芯片和用于发射峰值波长在369nm-385nm之间的第三芯片，所述第一芯片混光占比为68-75％，所述第二芯片混光占比为22-27％，所述第三芯片混光占比为3-5%。
进一步地，所述蓝光LED芯片包括用于发出430-435nm波长光线的蓝色光LED芯片、用于发出436-490nm波长光线的蓝色光LED芯片和用于发出491-520nm波长光线的蓝色光LED芯片。
进一步地，红光LED芯片、所述蓝光LED芯片和绿光LED芯片发出光线的混光比例范围为4：1：1-9：1：1。
进一步地，所述全光谱LED植物照明光源还包括封装于所述蓝光LED芯片、红光LED芯片、绿光LED芯片和所述近紫外光芯片的第一封装胶，所述第一封装胶由黄色荧光粉末与硅胶按照3:1至6:1比例经均匀混合后脱泡处理而成。
进一步地，所述全光谱LED植物照明光源还包括自然光光源，所述自然光光源包括LED蓝光芯片和LED红光芯片以及第二荧光胶，所述第二荧光胶封装于所述LED蓝光芯片和所述LED红光芯片上，所述第二荧光胶中具有供所述LED蓝光芯片激发生产发射峰值波长在460nm-470nm之间的第二黄色荧光粉和供所述LED红光芯片激发生产发射峰值波长在645nm-660nm之间的第二红色荧光粉；所述第二黄色荧光粉重量占比为68％-79％，所述第二红色荧光粉重量占比为21％-32％。
 有益效果
本发明提供的全光谱LED植物照明光源的有益效果在于：与现有技术相比，本发明通过设置蓝光LED芯片、红光LED芯片、绿光LED芯片和近紫外光LED芯片，而设置控制器，以实现模拟日间光照变化，同时在模拟午间光照时，可以通过近紫外光LED芯片产生紫外光，以实现全光谱覆盖，以良好对植物进行照明，保证植物生长；并设置防病虫害光源，从而通过光线照射，来实现植物的防病虫害，而避免或减少农药使用，保证植物食用安全性。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的全光谱LED植物照明光源的光谱与普通LED植物照明光源光谱及典型日光D40标准光谱波形的对比示意图。
 本发明的实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件，它可以是直接连接到另一个元件或间接连接至该另一个元件上。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。“若干”的含义是一个或一个以上，除非另有明确具体的限定。
在本发明的描述中，需要理解的是，术语“中心”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
请参阅图1，现对本发明提供的全光谱LED植物照明光源进行说明。所述全光谱LED植物照明光源，包括用于发出连续蓝光光波的蓝光LED芯片、用于发出连续红光光波红光LED芯片、用于发出连续绿光光波绿光LED芯片、用于发出连续近紫外光光波的近紫外光LED芯片、用于病虫害防治的防病虫害光源和控制器；控制器用于控制蓝光LED芯片、红光LED芯片、绿光LED芯片及近紫外光LED芯片工作以模拟日间光照变化；同时控制器控制防病虫害光源工作，以实现植物的防病虫害。通过蓝光LED芯片、红光LED芯片、绿光LED芯片的设置，以保证植物生长的良好波长光线，实现植物生长的光线需求；并且在设置近紫外光LED芯片，以保证模拟日光时，可以产生紫外光，满足植物生长中对全光谱的需求。而设置防病虫害光源，并使用控制器来控制，可以根据植物生长的不同时间，来控制防病虫害光源工作，而通过光线照射来实现植物的防病虫害，保证植物良好的生长，避免或减小农药的使用，提升果蔬类植物食品的食用安全性。
本发明提供的全光谱LED植物照明光源，与现有技术相比，通过设置蓝光LED芯片、红光LED芯片、绿光LED芯片和近紫外光LED芯片，而设置控制器，以实现模拟日间光照变化，同时在模拟午间光照时，可以通过近紫外光LED芯片产生紫外光，以实现全光谱覆盖，以良好对植物进行照明，保证植物生长；并设置防病虫害光源，从而通过光线照射，来实现植物的防病虫害，而避免或减少农药使用，保证植物食用安全性。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，蓝光LED芯片包括用于发出430-435nm波长光线的蓝色光LED芯片、用于发出436-490nm波长光线的蓝色光LED芯片和用于发出491-520nm波长光线的蓝色光LED芯片。从而使该全光谱LED植物照明光源能够发出在430-520nm波长范围内的连续蓝色光。优先地，用于发出430-435nm波长光线的蓝色光LED芯片为一个，用于发出436-490nm波长光线的蓝色光LED芯片为一个，用于发出491-520nm波长光线的蓝色光LED芯片为一个。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，绿光LED芯片包括用于发出520-525nm波长光线的绿色光LED芯片、用于发出526-550nm波长光线的绿色光LED芯片和用于发出551-577nm波长光线的绿色光LED芯片。从而使该全光谱LED植物照明光源能够发出在520-577nm波长范围内的连续绿色光。优先地，用于发出520-525nm波长光线的绿色光LED芯片为一个，用于发出526-550nm波长光线的绿色光LED芯片为一个，用于发出551-577nm波长光线的绿色光LED芯片为一个。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，红光LED芯片包括用于发出660-665nm波长光线的红色光LED芯片和用于发出610-665nm波长光线的红色光LED芯片。从而使该全光谱LED植物照明光源能够发出在610-665nm波长范围内的连续红色光。优先地，用于发出660-665nm波长光线的红色光LED芯片为一个，用于发出610-665nm波长光线的红色光LED芯片为一个。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，红光LED芯片、蓝光LED芯片和绿光LED芯片发出光线的混光比例范围为4：1：1-9：1：1，以便控制器可以控制红光LED芯片、蓝光LED芯片和绿光LED芯片更好的模拟出太阳光变化规律。优先地，红光LED芯片、蓝光LED芯片和绿光LED芯片发出光线的混光比例范围为6：1：1-9：1：1，以保证植物生长的良好光照环境要求。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，上述防病虫害光源包括近紫外光芯片、蓝光芯片、红光芯片以及第一荧光胶，第一荧光胶封装于近紫外光芯片、蓝光芯片及红光芯片上，第一荧光胶中具有供蓝光芯片激发生产发射峰值波长在460nm-470nm之间的第一黄色荧光粉、供红光芯片激发生产发射峰值波长在645nm-660nm之间的第一红色荧光粉和供近紫外光芯片激发生产发射峰值波长在369nm-385nm之间的近紫外荧光粉。通过蓝光芯片激发第一黄色荧光粉生产发射峰值波长在460nm-470nm的光线、红光芯片激发第一红色荧光粉生产发射峰值波长在645nm-660nm的光线、近紫外光芯片激发近紫外荧光粉生产发射峰值波长在369nm-385nm的光线，以进行混合照射，从而灭掉植物虫害，实现植物的防病虫害。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，第一黄色荧光粉重量占比为68-75％，第一红色荧光粉重量占比为22-27％，近紫外荧光粉重量占比为3-5%。即，第一荧光胶的荧光粉中：第一黄色荧光粉重量占比为68-75％，第一红色荧光粉重量占比为22-27％，近紫外荧光粉重量占比为3-5%，使得混合光线中，460nm-470nm的光线占比为68-75％，645nm-660nm的光线占比为22-27％，369nm-385nm的光线占比为3-5%，以保证植物良好生长的情况下，灭掉植物虫害，实现植物的防病虫害控制。
优先地，第一黄色荧光粉重量占比为71％，第一红色荧光粉重量占比为25％，近紫外荧光粉重量占比为4%。即，第一荧光胶中的荧光粉中：第一黄色荧光粉重量占比为71％，第一红色荧光粉重量占比为25％，近紫外荧光粉重量占比为4%，使得混合光线中，460nm-470nm的光线波长占比为71％，645nm-660nm的光线波长占比为25％，369nm-385nm的光线波长占比为4%，以保证植物良好生长的情况下，灭掉植物虫害，实现植物的防病虫害控制。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，上述防病虫害光源中：近紫外光芯片为用于产生365nm光波的LED芯片，通过365nm光波的LED芯片激发近紫外荧光粉可以使生产的光线在波长发射峰值369nm-385nm之间的范围覆盖更广，提高能源利用率。蓝光芯片为用于产生475nm光波的LED芯片，通过475nm光波的LED芯片激发第一黄色荧光粉可以使生产的光线在波长发射峰值460nm-470nm之间的范围覆盖更广，提高能源利用率。红光芯片为用于产生610nm光波的LED芯片，通过610nm光波的LED芯片激发第一红色荧光粉可以使生产的光线在波长发射峰值645nm-660nm之间的范围覆盖更广，提高能源利用率。当然，在其它一些实施例中，也可以使用其它近紫外光芯片来激发近紫外荧光粉，使用其它蓝光芯片来激发第一黄色荧光粉，使用其它红光芯片来激发第一红色荧光粉。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，上述防病虫害光源包括用于发射峰值波长在460nm-470nm之间的第一芯片、用于发射峰值波长在645nm-660nm之间的第二芯片和用于发射峰值波长在369nm-385nm之间的第三芯片，第一芯片混光占比为68-75％，第二芯片混光占比为22-27％，第三芯片混光占比为3-5%，以保证植物良好生长的情况下，灭掉植物虫害，实现植物的防病虫害控制。
优先地，第一芯片混光占比为71％，第二芯片混光占比为25％，第三芯片混光占比为4%，以保证植物良好生长的情况下，灭掉植物虫害，实现植物的防病虫害控制。
本发明的全光谱LED植物照明光源，在对植物病虫害防治中进行了具体的实验，在相同的大棚中，其它生长条件相同的情况下，对不同果蔬类植物，分别种植200株，以进行防病虫害对比实验。本发明的全光谱LED植物照明光源应用到果蔬类植物病虫害防治，相比于普通光照环境且未喷撒农药植物情况下，针对200株不同植物，在生长3个月的具有病虫植物数量的对比数据表，该表主要统计植物叶片30%以上具有病虫缺口的植物数量：
200株各类植物生长3月生病虫数量
果蔬 普通光照环境且未喷散农药 采用全光谱LED植物照明光源进行光照环境
莴苣 160 15
黄瓜 180 12
甜椒 172 16
西红柿 169 18
通过上表的具体实验数据可知，使用本发明的全光谱LED植物照明光源对植物进行补光，可以有效进行病虫害防治，并且可以大大降低各植物上病虫的生长与发育，保证植物良好生长，从而实现有机、无农药生长环境，提供安全的果蔬。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，全光谱LED植物照明光源还包括自然光光源，自然光光源包括LED蓝光芯片和LED红光芯片以及第二荧光胶，第二荧光胶封装于LED蓝光芯片和LED红光芯片上，设置自然光光源，在对植物照明时，可以更好的促进植物生长。第二荧光胶中具有供LED蓝光芯片激发生产发射峰值波长在460nm-470nm之间的第二黄色荧光粉和供LED红光芯片激发生产发射峰值波长在645nm-660nm之间的第二红色荧光粉；第二黄色荧光粉重量占比为68％-79％，第二红色荧光粉重量占比为21％-32％；从而使该自然光光源在约2700K至6000K的CCT（correlated color temperature，相关色温）下具有大于95的一般显色指数，具有接近自然光的全光谱。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，上述LED蓝光芯片为用于发出470nm波长光线的LED芯片，通过470nm波长光线的LED芯片激发第二黄色荧光粉可以使生产的光线在波长发射峰值460nm-470nm之间的范围覆盖更广，更接近自然光的相应光谱，提高能源利用率。LED红光芯片为用于发出630nm波长光线的LED芯片，通过630nm波长光线的LED芯片激发第二红色荧光粉可以使生产的光线在波长发射峰值645nm-660nm之间的范围覆盖更广，更接近自然光的相应光谱，提高能源利用率。
请参阅图1，本发明的全光谱LED植物照明光源的光谱特性与普通LED植物照明光源光谱及典型日光D40标准光谱波形的对比示意图，图中：横坐标为波长，单位nm；纵坐标为功率分布系数。图中线a为典型日光D40标准光谱功率分布曲线，线b为本发明全光谱LED植物照明光源的光谱功率分布曲线，线c为普通LED植物照明光源光谱功率分布曲线。典型日光D40标准光谱的光谱特性具有由红到蓝（400-700nm）的连续光带的光谱功率分布曲线，类似于相同色温太阳光的光功率分布。本发明的全光谱LED植物照明光源就是模拟（相同色温的）自然光光谱，并去除自然光中有害的紫外线和红外线。与自然光相比，本发明的全光谱LED植物照明光源的完整性应接近于自然光光谱的相似度，本发明的全光谱LED植物照明光源较普通LED植物照明光源降低了蓝光峰值，提升了可见光波段的连续性，有效提升了LED照明光品质。更好的适合植物照明使用。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，全光谱LED植物照明光源还包括封装于蓝光LED芯片、红光LED芯片、绿光LED芯片和近紫外光芯片的第一封装胶，第一封装胶由黄色荧光粉末与硅胶按照3:1至6:1比例经均匀混合后脱泡处理而成，以形成相关色温在8000K左右的高亮度白光LED光源，提升白光亮度。黄色荧光粉末与硅胶比例为重量比。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，全光谱LED植物照明光源还包括封装于蓝光LED芯片、红光LED芯片、绿光LED芯片和近紫外光LED芯片上的第二封装胶，第二封装胶由荧光粉末与硅胶均匀混合后脱泡处理而成，荧光粉末包括黄色荧光粉末与红色荧光粉。以形成低色温白光LED光源。优先地，黄色荧光粉与红色荧光粉的比例为1：1。更进一步地，第二封装胶由荧光粉末与硅胶按照3:1至6:1比例经均匀混合后脱泡处理而成，发保证良好的发光效率。荧光粉末与硅胶比例为重量比。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，上述红色荧光粉组成式为：CaAlSi(ON)3:Eu，发射光谱峰值波长在620-650nm，半峰宽在105-135nm。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，上述黄色荧光粉主要是YAG钇铝石榴石，其化学式为Y3Al5O12:Ce3+。这种荧光粉制作的白光LED具有很高的流明效率，但是由于发射光谱的红光成分较少而使其显色指数偏低。也可以采用现有技术的黄色荧光粉如，Eu2+作为发光中心的Ca-α-SiAlON以及Ce3+作为发光中心的LaSr2AlO5。
进一步地，作为本发明提供的全光谱LED植物照明光源的一种具体实施方式，可以将铝酸盐荧光粉BaMgAl10O17:Eu、硅酸盐荧光粉(Sr，Ba)2SiO4:Eu、氮化物荧光粉(Sr，Ca)SiAlN3:Eu与环氧树脂混合均匀后，再与近紫外荧光粉混合物涂敷在近紫外光LED芯片上。
本发明的全光谱LED植物照明光源应用到果蔬类植物生长，促进植物生长相比于普通光照环境下的对比数据表：
补光典型指标
果蔬 普通光照环境 采用全光谱LED植物照明光源进行光照环境 提速
莴苣 13-15molm -2d -1或更高的光照量 冬天使用50-100µmolm-2 s -1光照超过16-24h 1.4-2.7倍
黄瓜 补光量130-200Wm-2 光合有效光子数（PPF）320µmolm-2 s -1 3倍
甜椒 15µmolm-2 s -1 16-185µmolm-2 s -1 18-33%
西红柿 苗期4.9-6.1 molm-2 s -1； 果期130-160µmolm-2 s -1 130-160µmolm-2 s -1补光16h周期 增长5-53%
通过上表可知，本发明的全光谱LED植物照明光源在应用到果蔬类植物照明时，可以明显提升果蔬类植物的生长速度。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 全光谱LED植物照明光源，包括用于发出连续蓝光光波的蓝光LED芯片、用于发出连续红光光波红光LED芯片和用于发出连续绿光光波绿光LED芯片，其特征在于：该全光谱LED植物照明光源还包括用于发出连续近紫外光光波的近紫外光LED芯片、用于病虫害防治的防病虫害光源和控制所述蓝光LED芯片、所述红光LED芯片、所述绿光LED芯片及所述近紫外光LED芯片工作以模拟日间光照变化并控制防病虫害光源工作的控制器。
  2. 如权利要求1所述的全光谱LED植物照明光源，其特征在于：所述防病虫害光源包括近紫外光芯片、蓝光芯片、红光芯片以及第一荧光胶，所述第一荧光胶封装于所述近紫外光芯片、所述蓝光芯片及所述红光芯片上，所述第一荧光胶中具有供所述蓝光芯片激发生产发射峰值波长在460nm-470nm之间的第一黄色荧光粉、供所述红光芯片激发生产发射峰值波长在645nm-660nm之间的第一红色荧光粉和供所述近紫外光芯片激发生产发射峰值波长在369nm-385nm之间的近紫外荧光粉。
  3. 如权利要求2所述的全光谱LED植物照明光源，其特征在于：所述第一黄色荧光粉重量占比为68-75％，所述第一红色荧光粉重量占比为22-27％，所述近紫外荧光粉重量占比为3-5%。
  4. 如权利要求3所述的全光谱LED植物照明光源，其特征在于：所述第一黄色荧光粉重量占比为71％，所述第一红色荧光粉重量占比为25％，所述近紫外荧光粉重量占比为4%。
  5. 如权利要求2所述的全光谱LED植物照明光源，其特征在于：所述近紫外光芯片为用于产生365nm光波的LED芯片，所述蓝光芯片为用于产生475nm光波的LED芯片，所述红光芯片为用于产生610nm光波的LED芯片。
  6. 如权利要求2所述的全光谱LED植物照明光源，其特征在于：所述防病虫害光源包括用于发射峰值波长在460nm-470nm之间的第一芯片、用于发射峰值波长在645nm-660nm之间的第二芯片和用于发射峰值波长在369nm-385nm之间的第三芯片，所述第一芯片混光占比为68-75％，所述第二芯片混光占比为22-27％，所述第三芯片混光占比为3-5%。
  7. 如权利要求1-6任一项所述的全光谱LED植物照明光源，其特征在于：所述蓝光LED芯片包括用于发出430-435nm波长光线的蓝色光LED芯片、用于发出436-490nm波长光线的蓝色光LED芯片和用于发出491-520nm波长光线的蓝色光LED芯片。
  8. 如权利要求1-6任一项所述的全光谱LED植物照明光源，其特征在于：红光LED芯片、所述蓝光LED芯片和绿光LED芯片发出光线的混光比例范围为4：1：1-9：1：1。
  9. 如权利要求1-6任一项所述的全光谱LED植物照明光源，其特征在于：所述全光谱LED植物照明光源还包括封装于所述蓝光LED芯片、红光LED芯片、绿光LED芯片和所述近紫外光芯片的第一封装胶，所述第一封装胶由黄色荧光粉末与硅胶按照3:1至6:1比例经均匀混合后脱泡处理而成。
  10. 如权利要求1-6任一项所述的全光谱LED植物照明光源，其特征在于：所述全光谱LED植物照明光源还包括自然光光源，所述自然光光源包括LED蓝光芯片和LED红光芯片以及第二荧光胶，所述第二荧光胶封装于所述LED蓝光芯片和所述LED红光芯片上，所述第二荧光胶中具有供所述LED蓝光芯片激发生产发射峰值波长在460nm-470nm之间的第二黄色荧光粉和供所述LED红光芯片激发生产发射峰值波长在645nm-660nm之间的第二红色荧光粉；所述第二黄色荧光粉重量占比为68％-79％，所述第二红色荧光粉重量占比为21％-32％。
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