阅读说明：本技术 一种高频蓝光的屏蔽方法 (High-frequency blue light shielding method ) 是由 邸万山 于 2021-08-20 设计创作，主要内容包括：本发明公开了一种高频蓝光的屏蔽方法,以无色玻璃、石英、硬质聚碳酸酯等透光度好,硬度大,不易变形等物质为材料制成一定规格的护屏容器,护屏容器的长、宽根据使用设备屏幕进行调节,护屏容器的空隙厚度为0.2-0.4cm,将能够吸收高频蓝光的吸光液充满容器空隙并密封,再将装有能够吸收高频蓝光的吸光液的容器置于手机、平板显示器、液晶显示器等屏幕前,使用这些设备时,屏幕发出的高频蓝光通过护屏时被吸光液中的吸光物质吸收,从而防止眼睛被高频蓝光损伤。吸光液可以是甲基橙、二甲酚橙、溴酚蓝、茜素黄、姜黄素等一种或几种按比例混合,在波长415-455nm光谱段吸光强,吸收蓝光效果好,而在其他光谱段吸光弱,视觉效果好。(The invention discloses a shielding method of high-frequency blue light, which is characterized in that substances such as colorless glass, quartz, hard polycarbonate and the like which have good light transmittance and large hardness and are not easy to deform are used as materials to manufacture a screen protection container with a certain specification, the length and the width of the screen protection container are adjusted according to a screen of a using device, the thickness of a gap of the screen protection container is 0.2-0.4cm, light absorption liquid capable of absorbing the high-frequency blue light is filled in the gap of the container and sealed, then the container filled with the light absorption liquid capable of absorbing the high-frequency blue light is placed in front of a screen of a mobile phone, a flat panel display, a liquid crystal display and the like, and when the device is used, the high-frequency blue light emitted by the screen is absorbed by the light absorption substances in the light absorption liquid when passing through the screen protection, so that eyes are prevented from being damaged by the high-frequency blue light. The light absorption liquid can be one or a mixture of methyl orange, xylenol orange, bromophenol blue, alizarin yellow, curcumin and the like according to a proportion, the light absorption intensity in the 415-plus 455nm spectrum section is good, the blue light absorption effect is good, and the light absorption in other spectrum sections is weak, and the visual effect is good.)

1. A shielding method for high-frequency blue light is characterized by comprising the following steps:

step one, preparing a shielding container with a gap thickness of 0.2-0.4cm by using a light-transmitting material;

filling light absorption liquid into the screen protection container and sealing;

the preparation process of the light absorption liquid comprises the following steps:

the concentration is 2 x 10^-3methyl orange in mol/L and the concentration of 2X 10^-3Preparing a mixed solution from mol/L bromocresol purple according to the volume ratio of 1:1, and adjusting the pH value of the mixed solution to satisfy the following conditions: the pH value is more than 3.0 and less than 4.0;

and thirdly, placing the screen protection container in front of a screen of the electronic equipment to shield high-frequency blue light.

2. The method for shielding high-frequency blue light according to claim 1, wherein the light-transmitting material is colorless glass, quartz or hard polycarbonate.

3. The method for shielding high-frequency blue light according to claim 2, wherein the length of the shield container is the same as the length of the electronic device, and the width of the shield container is the same as the width of the electronic device.

4. The method for shielding high-frequency blue light according to claim 3, wherein the light-absorbing liquid is one or more of methyl orange, bromocresol purple, xylenol orange, bromophenol blue, alizarin yellow and/or curcumin.

5. The method for shielding high-frequency blue light according to claim 4, wherein said concentration is 2 x 10^-3The preparation process of the methyl orange with mol/L comprises the following steps:

weighing methyl orange, placing in a beaker, dissolving with heated distilled water, cooling to room temperature, transferring to a volumetric flask, and diluting with distilled water to a constant volume to obtain a concentration of 2 × 10^-3mol/L methyl orange.

6. The method for shielding high-frequency blue light according to claim 5, wherein said concentration is 2 x 10^-3The preparation process of the mol/L bromocresol purple comprises the following steps:

weighing bromocresol purple, placing into a beaker, adding 95% ethanol for dissolving, transferring into a volumetric flask, and fixing the volume with 95% ethanol to obtain the product with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple.

7. The method for shielding high-frequency blue light according to claim 5, wherein the weighed methyl orange has a mass of 0.066 g.

8. The method for shielding high-frequency blue light according to claim 6, wherein the weighed mass of bromocresol purple is 0.11 g.

9. The method for shielding high-frequency blue light according to claim 1, wherein the PH of the mixed solution is adjusted by acetic acid in the second step.

Technical Field

The invention relates to the technical field of blue light prevention of electronic products, in particular to a high-frequency blue light shielding method.

Background

The high-frequency blue light is also called high-energy visible light (HEV), is blue light with the wavelength of 380-500nm, and is a spectral band with the strongest energy in the visible light. Wherein the high-frequency blue light with the wavelength of 415-455nm has an accumulative effect on the retina to damage the retina and cause damage to human eyes.

In daily life, various novel artificial light sources, such as mobile phones, flat panel displays, liquid crystal displays, fluorescent lamps, LED lamps, bath heaters and other equipment can generate harmful high-frequency blue light when in use, and after the equipment is used for a long time, the time of exposing eyes to the high-frequency blue light is greatly prolonged, so that eye diseases such as visual deterioration, cataract, blindness and the like can be caused.

At present, there are two common methods for shielding high-frequency blue light: one method is to plate a film capable of reflecting high-frequency blue light on the surface of the spectacle lens, which can block about 15% -35% of the high-frequency blue light; the other method is to infiltrate pigment into the lens by infiltration method in the lens, and absorb high-frequency blue light by the pigment; the methods can shield high-frequency blue light to a certain degree, but have the problems of narrow spectrum band for shielding the high-frequency blue light, small absorbance of the high-frequency blue light and the like, and do not achieve ideal effects.

Disclosure of Invention

The invention aims to design and develop a shielding method of high-frequency blue light, which is characterized in that a light absorption liquid is placed in front of a screen of electronic equipment, so that the high-frequency blue light with the wavelength of 415-455nm can be absorbed, the range of a light absorption spectrum section is wide, the absorption in other spectrum sections is weak, and the visual effect is good.

The technical scheme provided by the invention is as follows:

a shielding method of high-frequency blue light comprises the following steps:

step one, preparing a shielding container with a gap thickness of 0.2-0.4cm by using a light-transmitting material;

filling light absorption liquid into the screen protection container and sealing;

the preparation process of the light absorption liquid comprises the following steps:

the concentration is 2 x 10^-3methyl orange in mol/L and the concentration of 2X 10^-3Preparing a mixed solution from mol/L bromocresol purple according to the volume ratio of 1:1, and adjusting the pH value of the mixed solution to satisfy the following conditions: the pH value is more than 3.0 and less than 4.0;

and thirdly, placing the screen protection container in front of a screen of the electronic equipment to shield high-frequency blue light.

Preferably, the light-transmitting material is colorless glass, quartz or rigid polycarbonate.

Preferably, the length of the shield container is the same as the length of the electronic device, and the width of the shield container is the same as the width of the electronic device.

Preferably, the light absorption liquid is one or more of methyl orange, bromocresol purple, xylenol orange, bromophenol blue, alizarin yellow and/or curcumin.

Preferably, the concentration is 2 × 10^-3The preparation process of the methyl orange with mol/L comprises the following steps:

weighing methyl orange, placing in a beaker, dissolving with heated distilled water, cooling to room temperature, transferring to a volumetric flask, and diluting with distilled water to a constant volume to obtain a concentration of 2 × 10^-3mol/L methyl orange.

Preferably, the concentration is 2 × 10^-3The preparation process of the mol/L bromocresol purple comprises the following steps:

weighing bromocresol purple, placing into a beaker, adding 95% ethanol for dissolving, transferring into a volumetric flask, and fixing the volume with 95% ethanol to obtain the product with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple.

Preferably, the weighed methyl orange has a mass of 0.066 g.

Preferably, the weighed bromocresol purple has a mass of 0.11 g.

Preferably, in the second step, the pH value of the mixed solution is adjusted by acetic acid.

The invention has the following beneficial effects:

the high-frequency blue light shielding method designed and developed by the invention can absorb high-frequency blue light with the wavelength of 415-455nm, and the range of the light absorption spectrum section is wide; the absorbance in the 415-plus 455nm spectrum band reaches above 0.8, and the light absorption effect is good; the absorption in other spectral bands is weak, and the visual effect is good; the absorbance can be adjusted according to the screen light intensity, and the method is convenient and flexible; the manufacturing is simple and the cost is low; the use is convenient; the light absorption liquid is convenient to replace when the light absorption liquid fails.

Drawings

Fig. 1 is a schematic diagram of a light absorption effect of the shielding method for high-frequency blue light according to the present invention.

FIG. 2 is a schematic diagram of an absorption spectrum of methyl orange according to the present invention.

FIG. 3 is a schematic diagram of the absorption spectrum of bromocresol purple in accordance with the present invention.

Detailed Description

The present invention is described in further detail below in order to enable those skilled in the art to practice the invention with reference to the description.

As shown in fig. 1, the method for shielding high-frequency blue light provided by the present invention includes the following steps:

firstly, materials such as colorless glass, quartz, hard polycarbonate and the like which have good light transmittance and large hardness and are not easy to deform are used as materials to manufacture a shield container 110 with a certain specification, the length and the width of the shield container 110 are adjusted according to the specification of a screen of a using device, the shield container 110 is coincided with the screen, the shield container 110 is of a structure with a gap, and the thickness of the gap is 0.2-0.4 cm;

placing light absorption liquid 120 capable of absorbing high-frequency blue light in gaps of the shield container 110, filling the gaps of the shield container 110 with the light absorption liquid without bubbles, and sealing the shield container 110;

wherein, the light absorption liquid 120 for absorbing the high-frequency blue light can be one or a mixture of methyl orange, bromocresol purple, xylenol orange, bromophenol blue, alizarin yellow, curcumin and the like according to a proportion, the light absorption intensity in the spectrum section with the wavelength of 415-455nm is good, the light absorption in other spectrum sections is weak, and the visual effect is good; whereby the absorbance can be adjusted according to the screen light intensity.

Taking methyl orange and bromocresol purple as examples, drawing absorption spectra of the methyl orange and the bromocresol purple at the wavelength of 400-600 nm:

as shown in FIGS. 2 and 3, the respective preparation concentrations were 2X 10^-3And (3) respectively measuring absorbance of different wavelengths in a spectrum section with the wavelength of 400-600nm by using distilled water as reference liquid for the two solutions of methyl orange and bromocresol purple in mol/L, establishing a rectangular coordinate system by using the wavelength (lambda) as a horizontal coordinate and the absorbance (A) as a vertical coordinate, drawing corresponding points on the rectangular coordinate system by using the measured data (lambda and A), and connecting the points into a curve to obtain the absorption spectra of the two substances of methyl orange and bromocresol purple.

As can be seen from the absorption spectra of methyl orange and bromocresol purple, the absorbance is large in the 415-and 455-nm wavelength spectrum band, and the absorbance is small in the other wavelength spectrum band, and the concentration is 2X 10^-3methyl orange in mol/L and the concentration of 2X 10^-3mol/L bromocresol purple solution according to the weight ratio of 1:1 volume ratio, and adjusting the pH value of the mixed solution to meet the requirement by using acetic acid: the pH value is more than 3.0 and less than 4.0 to obtain light absorption liquid;

and thirdly, placing the screen protection container 110 filled with the light absorption liquid 120 capable of absorbing high-frequency blue light on a screen of electronic equipment such as a mobile phone, a flat panel display and a liquid crystal display to shield the high-frequency blue light, wherein when the electronic equipment is used, the high-frequency blue light emitted by the screen is absorbed by the light absorption substances in the light absorption liquid 120 when passing through the screen protection container 110, so that eyes are prevented from being damaged by the high-frequency blue light.

Example 1

Weighing 0.11g of bromocresol purple, placing the bromocresol purple in a beaker, adding 95% ethanol for dissolving, transferring the solution into a 100mL volumetric flask, and carrying out constant volume by using 95% ethanol to obtain the solution with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple; weighing 0.066g of methyl orange, placing the methyl orange in a beaker, dissolving the methyl orange in heated distilled water, cooling the methyl orange to room temperature, transferring the methyl orange to a 100mL volumetric flask, and fixing the volume by using the distilled water to obtain the product with the concentration of 2 multiplied by 10^-3mol/L methyl orange; mixing the bromocresol purple and the methyl orange solution according to the volume ratio of 1:1, adjusting the pH value of the solution to be more than 3.0 and less than 4.0 by using acetic acid, and placing the solution in a screen protection container with the thickness of 0.2 cm;

the absorbance is measured to be 0.81-0.95 in the spectrum section with the wavelength of 415-455nm and 0.08-0.10 in the spectrum section with the wavelength of 455-800nm by using distilled water as reference liquid.

Example 2

Weighing 0.11g of bromocresol purple, placing the bromocresol purple in a beaker, adding 95% ethanol for dissolving, transferring the solution into a 100mL volumetric flask, and carrying out constant volume by using 95% ethanol to obtain the solution with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple; weighing 0.066g of methyl orange, placing the methyl orange in a beaker, dissolving the methyl orange in heated distilled water, cooling the methyl orange to room temperature, transferring the methyl orange to a 100mL volumetric flask, and fixing the volume by using the distilled water to obtain the product with the concentration of 2 multiplied by 10^-3mol/L methyl orange; mixing the bromocresol purple and the methyl orange solution according to the volume ratio of 1:1, adjusting the pH value of the solution to be more than 3.0 and less than 4.0 by using acetic acid, and placing the solution in a screen protection container with the thickness of 0.3 cm;

the absorbance is measured in the spectrum section of 415-455nm by using distilled water as reference liquid and is 0.98-1.19, and the absorbance is measured in the spectrum section of 455-800nm by using distilled water as reference liquid and is 0.12-0.15.

Example 3

Weighing 0.1Placing 1g of bromocresol purple in a beaker, adding 95% ethanol for dissolving, transferring to a 100mL volumetric flask, and fixing the volume by using 95% ethanol to obtain the concentration of 2 multiplied by 10^-3mol/L bromocresol purple; weighing 0.066g of methyl orange, placing the methyl orange in a beaker, dissolving the methyl orange in heated distilled water, cooling the methyl orange to room temperature, transferring the methyl orange to a 100mL volumetric flask, and fixing the volume by using the distilled water to obtain the product with the concentration of 2 multiplied by 10^-3mol/L methyl orange; mixing the bromocresol purple and the methyl orange solution according to the volume ratio of 1:1, adjusting the pH value of the solution to be more than 3.0 and less than 4.0 by using acetic acid, and placing the solution in a screen protection container with the thickness of 0.4 cm;

the absorbance is measured at the wavelength 415-455nm spectral band and is 1.65-1.93 and the absorbance is measured at the wavelength 455-800nm spectral band and is 0.16-0.21 by using distilled water as a reference solution.

Comparative example 1

Weighing 0.11g of bromocresol purple, placing the bromocresol purple in a beaker, adding 95% ethanol for dissolving, transferring the solution into a 100mL volumetric flask, and carrying out constant volume by using 95% ethanol to obtain the solution with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple; weighing 0.066g of methyl orange, placing the methyl orange in a beaker, dissolving the methyl orange in heated distilled water, cooling the methyl orange to room temperature, transferring the methyl orange to a 100mL volumetric flask, and fixing the volume by using the distilled water to obtain the product with the concentration of 2 multiplied by 10^-3mol/L methyl orange; mixing the bromocresol purple and the methyl orange solution according to a volume ratio of 4:6, adjusting the pH value of the solution to be more than 3.0 and less than 4.0 by using acetic acid, and placing the solution in a screen protection container with the thickness of 0.2 cm;

the absorbance is measured to be 0.72-0.94 in the spectrum section with the wavelength of 415-455nm and 0.25-0.38 in the spectrum section with the wavelength of 455-800nm by using distilled water as reference liquid.

Comparative example 2

Weighing 0.11g of bromocresol purple, placing the bromocresol purple in a beaker, adding 95% ethanol for dissolving, transferring the solution into a 100mL volumetric flask, and carrying out constant volume by using 95% ethanol to obtain the solution with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple; weighing 0.066g of methyl orange, placing the methyl orange in a beaker, dissolving the methyl orange in heated distilled water, cooling the methyl orange to room temperature, transferring the methyl orange to a 100mL volumetric flask, and fixing the volume by using the distilled water to obtain the product with the concentration of 2 multiplied by 10^-3mol/L methyl orange; mixing the bromocresol purple and the methyl orange solution according to the volume ratio of 6:4, adjusting the pH value of the solution to be more than 3.0 and less than 4.0 by using acetic acid, and placing the solution in a screen protection container with the thickness of 0.2 cm;

the absorbance is measured to be 0.65-0.82 in the spectrum section with the wavelength of 415-455nm and 0.31-0.46 in the spectrum section with the wavelength of 455-800nm by using distilled water as reference liquid.

Comparative example 3

Weighing 0.11g of bromocresol purple, placing the bromocresol purple in a beaker, adding 95% ethanol for dissolving, transferring the solution into a 100mL volumetric flask, and carrying out constant volume by using 95% ethanol to obtain the solution with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple; weighing 0.066g of methyl orange, placing the methyl orange in a beaker, dissolving the methyl orange in heated distilled water, cooling the methyl orange to room temperature, transferring the methyl orange to a 100mL volumetric flask, and fixing the volume by using the distilled water to obtain the product with the concentration of 2 multiplied by 10^-3mol/L methyl orange; mixing the bromocresol purple and the methyl orange solution according to the volume ratio of 1:1, adjusting the pH value of the solution to be more than 3.0 and less than 4.0 by using acetic acid, and placing the solution in a screen protection container with the thickness of 0.1 cm;

the absorbance is measured to be 0.38-0.42 in the spectrum section with the wavelength of 415-455nm and 0.04-0.05 in the spectrum section with the wavelength of 455-800nm by using distilled water as reference liquid.

Comparative example 4

Weighing 0.11g of bromocresol purple, placing the bromocresol purple in a beaker, adding 95% ethanol for dissolving, transferring the solution into a 100mL volumetric flask, and carrying out constant volume by using 95% ethanol to obtain the solution with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple; weighing 0.066g of methyl orange, placing the methyl orange in a beaker, dissolving the methyl orange in heated distilled water, cooling the methyl orange to room temperature, transferring the methyl orange to a 100mL volumetric flask, and fixing the volume by using the distilled water to obtain the product with the concentration of 2 multiplied by 10^-3mol/L methyl orange; mixing the bromocresol purple and the methyl orange solution according to the volume ratio of 1:1 respectively, adjusting the pH of the solution to be more than 4.0 by using acetic acid, and placing the solution in a screen protection container with the thickness of 0.2 cm;

the absorbance is measured in the spectrum section of 415-455nm by using distilled water as reference liquid and is 0.62-0.71, and the absorbance is measured in the spectrum section of 455-800nm by using distilled water as reference liquid and is 0.12-0.18.

Comparative example 5

Weighing 0.11g of bromocresol purple, placing the bromocresol purple in a beaker, adding 95% ethanol for dissolving, transferring the solution into a 100mL volumetric flask, and carrying out constant volume by using 95% ethanol to obtain the solution with the concentration of 2 multiplied by 10^-3mol/L bromocresol purple; 0.066g of methyl orange is weighed out and placed in a beaker, dissolved in heated distilled water, cooled to room temperature and transferred to a 100mL volumetric flaskFixing the volume with distilled water to obtain the concentration of 2 multiplied by 10^-3mol/L methyl orange; mixing the bromocresol purple and the methyl orange solution according to the volume ratio of 1:1 respectively, adjusting the pH of the solution to be less than 3.0 by using acetic acid, and placing the solution in a screen protection container with the thickness of 0.2 cm;

the absorbance is measured in the spectrum section of 415-455nm by using distilled water as reference liquid and is 0.97-1.21, and the absorbance is measured in the spectrum section of 455-800nm by using distilled water as reference liquid and is 0.27-0.35.

In comparative example 1 and comparative example 2, the absorbance measured in the 415-455nm band is lower than that in the 415-455nm band in examples 1-3, and the absorbance measured in the 455-800nm band is higher than that in the 455-800nm band in examples 1-3, which results in weak absorbance in the 415-455nm band and weak absorbance in other bands, i.e. weak blue light shielding for electronic devices, and affects the visual effect, thus changing the volume ratio of the raw materials reduces the degree of blue light shielding;

in comparative example 3, the absorbance measured in the spectrum band of 415-;

in comparative example 4, the absorbance measured in the 415-plus 455nm band is lower than that in the 415-plus 455nm band of example 1, and the absorbance measured in the 455-plus 800nm band is higher than that in the 455-plus 800nm band of example 1, which results in weak absorption in the 415-plus 455nm band, and weak absorption in other bands, i.e., weak blue light shielding for electronic devices, and affects the visual effect, so that too high a pH of the raw material reduces the degree of shielding of blue light;

in comparative example 5, the absorbance measured in the 415-455nm band and the absorbance measured in the 455-800nm band were much higher than those in example 1, which resulted in masking in the whole spectrum and seriously affected the visual effect.

The high-frequency blue light shielding method designed and developed by the invention can absorb high-frequency blue light in the range of 415-455nm, the absorbance in the spectrum section of 415-455nm can reach above 0.8, the light absorption effect is good, and the range of the light absorption spectrum section is wide; the absorption in other spectral bands is weak, and the visual effect is good; the absorbance can be adjusted according to the screen light intensity, and the method is convenient and flexible; the manufacturing is simple and the cost is low; the use is convenient; the light absorption liquid is convenient to replace when the light absorption liquid fails.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the invention may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the invention is therefore not limited to the details given herein and to the embodiments shown and described without departing from the generic concept as defined by the claims and their equivalents.