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Light-emitting device for plant lighting

A light-emitting device and plant lighting technology, which is applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of high cost and unsatisfactory photon quantum efficiency, and achieve high stability, high external quantum efficiency, and wide application prospects.

Active Publication Date: 2020-03-31
XUYU OPTOELECTRONICSSHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a light-emitting device for plant lighting, aiming to solve the technical problems of high cost and unsatisfactory photon quantum efficiency of the existing light-emitting device for plant lighting

Method used

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  • Light-emitting device for plant lighting

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A semiconductor light-emitting device for plant lighting, such as figure 1 As shown, the light-emitting device includes a substrate 116 and a lens 111 seamlessly connected to the substrate, the substrate 116 is provided with a groove (not marked in the figure), and the space formed by the substrate 116 and the lens 111 is provided with a The blue LED chip 114 , the fluorescent powder glue layer 115 and the blue light absorbing layer 113 are stacked in sequence in the groove, and the phosphor powder glue layer 115 contains far-red phosphor powder.

[0033] Among them, the components include a single blue LED chip (the structure is a flip-chip structure), the semiconductor chip emits 440nm blue light, and the far-red phosphor is composed of Lu 2.99 Ce 0.01 Si 0.5 Ga 4.45 Cr 0.05 o 11.5 N 0.5 , the blue light absorber chooses C 20 h 6 Br 2 N 2 Na 2 o 9 , the far-red phosphor is mixed with silica gel and placed on the LED chip. The far-red phosphor accounts for ...

Embodiment 2

[0035] A semiconductor light-emitting device for plant lighting, such as figure 1 As shown, the light-emitting device includes a substrate 116 and a lens 111 seamlessly connected to the substrate, the substrate 116 is provided with a groove (not marked in the figure), and the space formed by the substrate 116 and the lens 111 is provided with a The blue LED chip 114 , the fluorescent powder glue layer 115 and the blue light absorbing layer 113 are stacked in sequence in the groove, and the phosphor powder glue layer 115 contains far-red phosphor powder.

[0036] Among them, the components include a single blue LED chip (the structure is a flip-chip structure), the semiconductor chip emits 450nm blue light, and the far-red phosphor is composed of Lu 2.99 Ce 0.01 Si 0.5 Ga 4.45 Cr 0.05 o 11.5 N 0.5 , the blue light absorber chooses C 20 h 6 Br 2 N 2 Na 2 o 9 , the far-red phosphor is mixed with silica gel and placed on the LED chip. The far-red phosphor accounts for ...

Embodiment 3

[0038] A semiconductor light-emitting device for plant lighting, such as figure 1 As shown, the light-emitting device includes a substrate 116 and a lens 111 seamlessly connected to the substrate, the substrate 116 is provided with a groove (not marked in the figure), and the space formed by the substrate 116 and the lens 111 is provided with a The blue LED chip 114 , the fluorescent powder glue layer 115 and the blue light absorbing layer 113 are stacked in sequence in the groove, and the phosphor powder glue layer 115 contains far-red phosphor powder.

[0039] Among them, the components include a single blue LED chip (the structure is a flip-chip structure), the semiconductor chip emits 460nm blue light, and the far-red phosphor is composed of Lu 2.99 Ce 0.01 Si 0.5 Ga 4.45 Cr 0.05 o 11.5 N 0.5 , the blue light absorber chooses C 20 h 6 Br 2 N 2 Na 2 o 9 , the far-red phosphor is mixed with silica gel and placed on the LED chip. The far-red phosphor accounts for ...

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Abstract

A light-emitting apparatus for plant illumination, comprising a substrate (116) and a lens (111) seamlessly connected to the substrate (116), wherein a groove is provided in the substrate (116); a blue light LED chip (114), a phosphor adhesive layer (115), and a blue light absorption layer (113), which are located in the groove and are successively arranged in a stacked manner, are provided in a space formed by the substrate (116) and the lens (111); the phosphor adhesive layer (115) contains far-red light phosphor; and the general chemical formula of the far-red light phosphor is: A 3-xM yGa 5-y-zO 12-yN y: (zCr 3+, xCe 3+), wherein A is selected from at least one of Lu and Y, and A necessarily contains Lu, and M is selected from at least one of Si, Zr and Hf; and 0.001≤x≤0.05, 0.01≤z≤0.08, and 0.01≤y≤0.8. The light-emitting apparatus has very broad application prospects in plant illumination.

Description

technical field [0001] The invention belongs to the technical field of illumination, and in particular relates to a light emitting device for plant illumination. Background technique [0002] Light environment is one of the indispensable important physical environmental factors for plant growth and development. It is an important technology to control the various stages of plant growth and development through light quality regulation. Therefore, plant lighting technology is currently widely used in various crop fields such as agricultural production, fruit and vegetable planting, and flower cultivation. Although the application scale of plant lighting is not as extensive as that of general lighting, it has gradually been recognized by the market due to its superiority and particularity, and the market demand is growing day by day. [0003] Photoreceptors are the key for plants to perceive changes in the external environment. In plant light reactions, the most important phot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/48H01L33/50H01L33/58
CPCH01L33/48H01L33/50H01L33/58
Inventor 蔡金兰陈磊曹小兵李超冉崇高
Owner XUYU OPTOELECTRONICSSHENZHEN CO LTD