An LED light-emitting device for repair and regeneration of retinal cells and application thereof

A technology of retinal cells and light-emitting devices, applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of lack of far-red light, reduce the harm of blue light, and improve the health of eyesight

Inactive Publication Date: 2019-01-11
INTELLIGENT MFG INST OF HFUT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the LEDs currently used in lighting fixtures and display backlights are mainly packaged by using InGaN blue light chips to excite phosphors. In order to achieve energy-saving effects, the commonly used phosphors are yellow, red, green or cyan phosphors. The emission wavelength is limited to the visible light range of 400-700nm, which lacks the far-red light in the 700-850nm range that is beneficial to human vision health

Method used

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  • An LED light-emitting device for repair and regeneration of retinal cells and application thereof
  • An LED light-emitting device for repair and regeneration of retinal cells and application thereof
  • An LED light-emitting device for repair and regeneration of retinal cells and application thereof

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Embodiment 1

[0044] Such as figure 1 Shown is a schematic diagram of the specific structure of the LED device described in this embodiment. In this embodiment, both the base 11 and the LED chip 121 are purchased from Guangdong Jinko Electronics Co., Ltd.

[0045] refer to figure 1 A recessed accommodation groove is formed on the base 11, an electrode 13 is provided on the end surface of the base 11 facing away from the accommodation groove, the LED chip 121 is fixed at the bottom of the accommodation groove, and the LED chip 121 connects with the electrode through a wire. 13 electrical connection. After mixing red phosphor powder, far red phosphor powder and AB transparent silica gel, vacuum defoaming, and then use a dispenser to drop it onto the side of the LED chip 121 facing the outside of the base 11, in a vacuum state, After being baked and cured at 150°C, an LED light-emitting device capable of independently emitting light under direct current drive is formed.

[0046] Red phospho...

Embodiment 2

[0052] The difference between this embodiment and Embodiment 1 is that the far-red phosphor adopts Y 3 Al 5 o 12 As a luminescent matrix, the far-red phosphor is prepared by the following method: with Y 2 o 3 、Al 2 o 3 and Cr 2 o 3 As a raw material, add a co-solvent to it, put it into a corundum crucible after ball milling and mixing, and then calcinate in a muffle furnace at a high temperature of 1250-1650 ° C. After the reaction is completed, it can be crushed.

[0053] Cr above 2 o 3 as Cr 3+ Cr(NO 3 ) 3 Instead, the co-solvent can use BaF 2 , AlF 3 or H 3 BO 3 , According to the amount of raw materials, the calcination time is 2-10h.

[0054] The LED light-emitting device prepared in this embodiment was energized, and collected data such as image 3 The spectrum shown shows that its wavelength is between 570-850nm.

[0055] It should be noted that the far-red phosphor in this embodiment can also be replaced by other high-symmetry oxides with garnet struc...

Embodiment 3

[0057] The difference between the present embodiment and the third embodiment is that the red light phosphor in the present embodiment adopts Ba 1.5 Al 5 N 8 o 0.5 , the far-red phosphor uses Sr 3 SiO 4 fo. The Ba 1.5 Al 5 N 8 o 0.5 and Sr 3 SiO 4 The preparation methods of FO are conventional methods, which will not be repeated here.

[0058] The LED light-emitting device prepared in this embodiment was energized, and collected data such as Figure 4 The spectrum shown shows that its wavelength is between 570-850nm.

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Abstract

The invention discloses an LED light-emitting device for repair and regeneration of retinal cells, comprising a base and an excitation light source, wherein the excitation light source is arranged onthe base. The excitation light source comprises an LED chip and a fluorescent powder layer. The LED chip is fixed on the base. The fluorescent powder layer comprises a silica gel layer, wherein fluorescent powder is dispersed in the silica gel layer, and the fluorescent powder layer is fixed on the end surface of the LED chip opposite to the base. The emission wavelength of the LED chip is 200-520nm, and that emission wavelength of the phosphor is 570nm-850nm. The invention also discloses the application of the LED light emitting device. The invention has the advantages that the far infrared light beneficial to vision health can be generated, the repair and regeneration of retinal cells can be promoted, and the harm of blue light can be reduced.

Description

technical field [0001] The invention belongs to the technical fields of semiconductor lighting, biomedicine and vision health, and specifically relates to an LED light-emitting device for retinal cell repair and regeneration and its application. Background technique [0002] For human vision health, far-red light and near-infrared light are extremely important. Far-red light and near-infrared light can promote the repair and regeneration of retinal cells. The essence is that the stimulation of far-red light and near-infrared light can improve the functional activity of mitochondria, thereby improving the ability of cell repair and regeneration. [0003] Mitochondria are the place where cellular respiration produces energy, and adenosine triphosphate (ATP) is the fuel of cellular energy and the most direct source of energy for organisms. Life can survive for a few minutes without an oxygen supply, but if all ATP supplies were suddenly stopped, a person would die within 15 se...

Claims

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Application Information

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IPC IPC(8): H01L33/50
CPCH01L33/504H01L2933/0041
Inventor 陈雷陈杰王家龙田云飞何良锐程鹏
Owner INTELLIGENT MFG INST OF HFUT
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