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An ecologically imitative plant growth supplementary LED light source

An LED light source and plant growth technology, which is applied in the field of ecologically imitating plant growth supplementary LED light source, can solve the problems of limited effect and insufficient matching of characteristic spectra, and achieve the effects of plump fruit, improved crop quality, and increased crop yield.

Inactive Publication Date: 2016-01-06
GUANGZHOU ZHENGNONG LIGHTING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commercially available LED supplementary light source is a narrow-band light source, which is not consistent with the characteristic spectrum required for plant growth, and the experimental results show that it has limited effects on promoting plant growth, increasing crop yield and improving crop quality.

Method used

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  • An ecologically imitative plant growth supplementary LED light source
  • An ecologically imitative plant growth supplementary LED light source
  • An ecologically imitative plant growth supplementary LED light source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Phosphor CaAlSiN 3 : Preparation of 0.8%Eu

[0046] According to the molecular formula CaAlSiN 3 : 0.8%Eu, accurately weigh raw materials according to their stoichiometric ratio (Ca 3 N 2 , AlN, Si 3 N 4 , EuN), then add appropriate additives, make it fully mixed, put it into the reactor and calcine and reduce it at 1300°C for 6 hours, the product obtained is passed through, crushed, sieved, and then calcined and reduced at 1450°C for 5 hours, and the product obtained is then passed through Crush, sieve, wash, dry, sieve, analyze and detect to obtain the final product CaAlSiN3:0.8%Eu.

Embodiment 2

[0048] Phosphor BaMgAl 10 o 17 : Preparation of 5%Eu

[0049] According to the molecular formula BaMgAl 10 o 17 : 5%Eu, according to its stoichiometric ratio prepared to weigh raw materials (Al 2 o 3 , MgO, BaCO 3 、Eu 2 o 3 ), and then add an appropriate amount of additives to make it fully mixed evenly, after being jet-milled to 3.5?? Dry, sieve, analyze and detect to get the final product BaMgAl 10 o 17 :5%Eu.

Embodiment 3

[0051] Preparation of Phosphor Powder CaS:0.5%Eu

[0052] According to the molecular formula CaS:0.5%Eu, prepare and weigh raw materials according to their stoichiometric ratio (CaCO 3 , Sublimation S, Eu 2 o 3 ), then add an appropriate amount of additives, make it fully mixed, put it into the reactor and calcined at 1000 ° C for 2 hours, and the product obtained is then jet milled, sieved, sieved, analyzed and tested to obtain the final product CaS: 0.5%Eu .

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Abstract

The invention relates to the field of imitative ecological plant-growth supplementary lighting LED light sources, in particular to a plant-growth LED light source which comprises a substrate, an LED wafer and a transparent rubber body. The LED wafer and the transparent rubber body are arranged on the substrate, the transparent rubber body is covered on the LED wafer, and colorized phosphor is uniformly distributed in the transparent rubber body. The light source is formed by an LED emitting blue light and red light simultaneously or by a blue-violet light LED and a red-orange light LED, luminescence spectrum of the light source ranges from 380 nanometers to 500 nanometers in blue-violet light area and 580 nanometers to 700 nanometers in red-orange light area, and emission peak of the lights is adjustable. The spectrum fits absorption spectrum of the photosynthesis of plants quite well, so that when packaged LEDs are assembled to form illumination lamps for agriculture, not only plant yield of the plant can be obviously increased, but also growth cycle of the plant can be shortened, and plant quality can be improved. The imitative ecological plant-growth supplementary lighting LED light source is energy saving, environment-friendly, durable and long in service life, and has great application value and market prospect.

Description

technical field [0001] The invention relates to a light source for plant growth, in particular to an ecologically imitative LED light source for plant growth, which belongs to the technical field of agricultural lighting. The light source can emit blue-violet light (380-480nm) that matches the spectrum of plant photosynthesis And red-orange light (620-680nm), specifically refers to a light source used in ecologically imitative LED plant growth lights for promoting plant growth, improving crop yield and quality. Background technique [0002] With the continuous increase of population and the continuous reduction of effective arable land, the human food crisis will continue to intensify. In recent years, due to excessive use of chemical fertilizers, land salinization, and global warming, the growth rate of crop production has slowed down year by year, and crop production has basically reached the upper limit, which can no longer meet the needs of population growth. [0003] T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/56H01L33/50A01G7/06
Inventor 谢文
Owner GUANGZHOU ZHENGNONG LIGHTING TECH CO LTD
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