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Plant growth lamp

A plant growth lamp and polymer technology, applied in the field of plant growth lamps, can solve the problems of short service life of LED plant growth lamps, uneven light output of plant growth lamps, and high energy consumption of grow lamps

Active Publication Date: 2018-07-20
NANO & ADVANCED MATERIALS INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem solved by the present invention is to overcome the uneven light output of the existing plant growth lamps, the inability to realize the precise control of the spectrum of different growth stages of plants, the complicated structure design and operation, and the high energy consumption of broadband HID or fluorescent tube plant growth lamps. Due to the short service life of QD or fluorescent powder LED plant growth lamps, a light conversion film (light emitting film, LEF) and its preparation method and application on plant growth lamps are provided.

Method used

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Embodiment 1

[0082] A light conversion film, comprising a light conversion material and a polymer film as a carrier, wherein the light conversion material is a composite of quantum dots and inorganic phosphors, and the polymer film is made of 184 silicone resin prepared.

[0083] The preparation method of this photoconverting film is as follows: 3ml CdSe / CdS red quantum dot solution (dissolved in chloroform, 10mg / mL) and 1g red inorganic fluorescent powder are mixed uniformly, and the gained mixed solution is mixed with 10g 184 silicone resin mixed to form a light-emitting composite, and then coated on the PET substrate, thermal curing (80 ° C, 5 minutes) to obtain.

Embodiment 2

[0085] A light conversion film comprises a light conversion material, a polymer film as a carrier, and two upper and lower protective isolation films. Wherein, the light conversion material is a composite quantum dot, and the polymer is a UV-curable glue with a refractive index of 1.48.

[0086] The preparation method of the light conversion film is as follows: 0.89ml GA_InP / ZnS green quantum dot solution (dissolved in chloroform, 10mg / mL) and 0.1189ml CdSe / CdS red quantum dot solution (dissolved in chloroform, 10mg / mL) were mixed uniformly; Mix the obtained quantum dot solution with 2g of UV-curable glue to form a light-emitting compound, and then coat it on a PET protective isolation film, form it by pressing the film, and obtain it by UV-curing; and then encapsulate the surroundings of the light conversion film.

Embodiment 3

[0088] A light conversion film comprises a light conversion material, a polymer nanofiber mat as a carrier, and two upper and lower protective isolation films. Among them, the light conversion material is composite quantum dots, the polymer nanofiber mat is polyvinylidene fluoride, and the refractive index is 1.42.

[0089] The preparation method of the light conversion film is as follows: mix 0.89ml GA_InP / ZnS green quantum dot solution (dissolved in chloroform, 10mg / mL) and 0.1189g CdSe / CdS red quantum dot solution (dissolved in chloroform, 10mg / mL); Coat, spray, or dip-coat the obtained quantum dot solution on a 20×40mm polyvinylidene fluoride nanofiber mat, and then dry it at low temperature (40°C, 15min); seal the nanofiber light-emitting layer on the PP protection layer with a thermosetting sealant. between the isolation membranes.

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Abstract

The invention discloses a plant growth lamp comprising a blue LED lamp and a light conversion film disposed outside the light exit surface of the blue LED lamp. The light conversion film of the plantgrowth lamp of the invention can be replaced, and the spectrum switching and adjustment can be realized by exciting different light conversion films by a single type of LED backlight to meet the spectral color requirements of plants of different varieties and growth stages.

Description

technical field [0001] The invention relates to a plant growth lamp. Background technique [0002] Grow lights are an artificial light source designed to stimulate plant growth by emitting an electromagnetic spectrum (400-700nm) suitable for photosynthesis. Photosynthesis is a process by which plants convert solar energy, in which chlorophyll in leaves absorbs sunlight to provide all the energy needed by plants. [0003] The color of phytochrome determines the selective absorption of different wavelengths by plants. The most common plant pigments are chlorophyll, carotenoids, anthocyanins, etc. During photosynthesis, the dominant plant absorption peaks are the blue and red parts of visible light. The main pigments of plant photosynthesis are chlorophyll and carotenoids, which absorb blue and red light; anthocyanin is another important pigment that determines the color of plants, mainly absorbing green light. Different plant pigments absorb different wavelengths of visibl...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V9/30F21V14/00A01G7/04F21Y115/10
CPCA01G7/045F21S8/00F21V14/00F21Y2115/10Y02P60/14
Inventor 郭志豪刘晨敏杜沛昕涂宁许美美
Owner NANO & ADVANCED MATERIALS INST
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