A kind of LED illuminating lamp with low color temperature and low blue light radiation and preparation method thereof

A technology of LED lighting and low color temperature, applied in the field of LED lighting, can solve the problems of high color temperature and serious blue light radiation of LED light source, and achieve the effect of reducing the amount of blue light radiation, reducing the amount of blue light radiation, and fewer operating procedures

Active Publication Date: 2020-11-20
SHANXI DATONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the problems of serious blue light radiation and high color temperature of existing LED light sources, and to provide a method for reducing LED blue light radiation and color temperature by using ZnO quantum dots that can generate yellow light by ultraviolet excitation

Method used

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  • A kind of LED illuminating lamp with low color temperature and low blue light radiation and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Weigh 1.2514 g of zinc acetate dihydrate solid into a beaker, add 200 ml of ethanol, stir for 5 min, and ultrasonically shake for 10 min at 35 °C until the zinc acetate dihydrate solid is completely dissolved.

[0035] Pour the solution into a three-necked flask, condense and reflux in a digital temperature-controlled magnetic stirring oil bath at 80 °C for 2 h, pour it into a beaker and put it in a refrigerator at 4 °C for refrigeration until use; weigh 8.00 g of NaOH solid in Add 100 ml of ethanol to the beaker, stir for 10 min, and oscillate ultrasonically for 30 min at 35 °C until the solids are fully dissolved, then place it for use; take 100 ml of the precursor solution in a three-necked flask, heat it to 45 °C in a magnetic stirring oil bath, Use a syringe to quickly add 5.00 ml of the ethanol solution of NaOH above, react for 5 min, pour it into a beaker, and cool to room temperature for use; add 100 ml of n-hexane to the reaction solution, stir for 5 min, centri...

Embodiment 2

[0039] Weigh 1.2514 g of zinc acetate dihydrate solid into a beaker, add 200 ml of ethanol, stir for 5 min, and ultrasonically shake for 10 min at 35 °C until the zinc acetate dihydrate solid is completely dissolved.

[0040] Pour the solution into a three-necked flask, condense and reflux in a digital temperature-controlled magnetic stirring oil bath at 80 °C for 2 h, pour it into a beaker and put it in a refrigerator at 4 °C for refrigeration until use; weigh 8.00 g of NaOH solid in Add 100 ml of ethanol to the beaker, stir for 10 min, and oscillate ultrasonically for 30 min at 35 °C until the solid is fully dissolved, and set aside for use; take 100 ml of the precursor solution in a three-necked flask, heat it to 45 °C in a magnetic stirring oil bath, Use a syringe to quickly add 5.00 ml of the ethanol solution of NaOH above, react for 5 min, pour it into a beaker, and cool to room temperature for use; add 100 ml of n-hexane to the reaction solution, stir for 5 min, centrifu...

Embodiment 3

[0044]Weigh 1.2514 g of zinc acetate dihydrate solid into a beaker, add 200 ml of ethanol, stir for 5 min, and ultrasonically shake for 10 min at 35 °C until the zinc acetate dihydrate solid is completely dissolved.

[0045] Pour the solution into a three-necked flask, condense and reflux in a digital temperature-controlled magnetic stirring oil bath at 80 °C for 2 h, pour it into a beaker and put it in a refrigerator at 4 °C for refrigeration until use; weigh 8.00 g of NaOH solid in Add 100 ml of ethanol to the beaker, stir for 10 min, and oscillate ultrasonically for 30 min at 35 °C until the solids are fully dissolved, then place it for use; take 100 ml of the precursor solution in a three-necked flask, heat it to 45 °C in a magnetic stirring oil bath, Use a syringe to quickly add 5.00 ml of the ethanol solution of NaOH above, react for 5 min, pour it into a beaker, and cool to room temperature for use; add 100 ml of n-hexane to the reaction solution, stir for 5 min, centrif...

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Abstract

The invention discloses a method for reducing color temperature and blue-light radiation of an LED light source. By the method, the problem of large harm of high color temperature and high-blue radiation LED light source to a human body is solved. The method comprises the steps of uniformly spinning the prepared ZnO quantum-dot solution onto the LED light source, and performing drying and package.The method for reducing color temperature and blue-light radiation of the LED light source has the characteristics of low cost, moderate preparation condition, simple process, greenness and environmental friendliness. In the LED lamp prepared by the method, the color temperature of the LED light source with an initial color temperature being 4,200K can be controlled between 4,200-2,500K, and theblue-light radiation quantity is reduced by 60%.

Description

technical field [0001] The invention belongs to the technical field of LED lighting, and in particular relates to an LED lighting lamp with low color temperature and low blue light radiation and a preparation method thereof. Background technique [0002] In recent years, LED light sources have occupied the main market of lighting sources due to their advantages of low power consumption, low driving voltage, high brightness, and long life. [0003] However, the serious blue light radiation of LED light sources on the market and the excessively high color temperature of LED light sources have a greater impact on people's quality of life and health. [0004] First of all, blue light radiation has extremely high energy, which can penetrate the lens directly to the retina, causing the atrophy or even death of the retinal pigment epithelial cells; secondly, due to the short wavelength of blue light, the focal point does not fall on the center of the retina, but is farther in front...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/50H05B33/10
CPCH01L33/502H05B33/10
Inventor 高志翔屈文山李伟杨婷婷李建刚刘红梅
Owner SHANXI DATONG UNIV
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