CN112029380A - Blue light removing coating - Google Patents

Blue light removing coating Download PDF

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Publication number
CN112029380A
CN112029380A CN202010936594.2A CN202010936594A CN112029380A CN 112029380 A CN112029380 A CN 112029380A CN 202010936594 A CN202010936594 A CN 202010936594A CN 112029380 A CN112029380 A CN 112029380A
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China
Prior art keywords
blue light
fluorescent powder
blue
rare earth
led lamp
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Pending
Application number
CN202010936594.2A
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Chinese (zh)
Inventor
崔剑
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Guixi Qingliang Lighting Technology Co ltd
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Guixi Qingliang Lighting Technology Co ltd
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Priority to CN202010936594.2A priority Critical patent/CN112029380A/en
Publication of CN112029380A publication Critical patent/CN112029380A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/22Luminous paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50Wavelength conversion elements
    • H01L33/501Wavelength conversion elements characterised by the materials, e.g. binder
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50Wavelength conversion elements
    • H01L33/501Wavelength conversion elements characterised by the materials, e.g. binder
    • H01L33/502Wavelength conversion materials
    • H01L33/504Elements with two or more wavelength conversion materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/221Oxides; Hydroxides of metals of rare earth metal
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • C08L2203/206Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Led Device Packages (AREA)

Abstract

The invention provides a blue light removing coating which comprises epoxy resin, silver colloid, red fluorescent powder, green fluorescent powder, blue fluorescent powder and nano rare earth oxide. According to the invention, the blue light removing coating is formed by proportioning the nano rare earth oxide and the red, green and blue fluorescent powder, can be sprayed to the light emitting surface of the LED chip in the packaging process and is used for manufacturing the LED lamp, so that the proportion of harmful blue light emitted by the LED lamp is greatly reduced, the proportion of harmless blue light is increased, meanwhile, the spectrum distribution is uniform, the uniformity and softness of emergent illumination light are ensured, and glare is effectively avoided; the blue light removing effect is realized by using the blue light removing coating, the packaging difficulty is effectively reduced, the manufacturing cost is reduced, and the manufactured LED lamp is particularly suitable for replacing a fluorescent lamp and a common LED lamp in a classroom to protect the eyesight of children.

Description

Blue light removing coating
Technical Field
The invention relates to the technical field of illumination, in particular to a blue light removing coating.
Background
Nature does not have separate white light, but the blue light is mixed with the green light and the yellow light to form white light. Green light and yellow light have less energy and are less irritating to eyes; the blue light wave is short, the energy is high, when the blue light reaches the fovea centralis of the macula lutea, lutein contained in the macula lutea can absorb a proper amount of blue light, the incidence of unabsorbed blue light can generate active oxygen, the excessive active oxygen can oxidize and damage retinal pigment epithelial cells, so that the retinal pigment epithelial cells cannot normally provide nutrition and metabolism for visual cells, the visual cell nutrition supply is poor, the main visual cells in the macula lutea are dead, the visual cells are non-renewable, and the visual health is greatly influenced. Especially for children, the retina macula has weak blue light absorption capacity, so that the blue light radiation received by the retina is about 2 times that of adults, and therefore the blue light radiation has the greatest influence on the eyesight health of children and is the group which needs protection most.
In the blue light, not all the wavelengths of the blue light can cause damage to human eyes, as shown in fig. 1, the damage of the 415-455nm wavelength blue light to retinal pigment epithelial cells is 2-4 times of the 480-500nm wavelength blue light, which belongs to harmful blue light and is a wavelength range that needs to be removed particularly; the 480-one 500nm wavelength range blue light has low damage to retinal pigment epithelial cells and large effect of suppressing melatonin secretion, but plays a role in making people refreshed, belongs to harmless blue light and is a wavelength range which needs to be reserved.
In daily schools and families, a fluorescent lamp or an LED lamp is mostly used as a light source for children to study, but due to the light emitting principle of the fluorescent lamp or the common LED lamp, as shown in FIG. 2 and FIG. 3, the light source emitted by the fluorescent lamp or the common LED lamp usually has higher intensity in the range of 415-.
The traditional blue light source that goes realizes going the blue light effect through adopting special light source chip packaging material and packaging technology, like the eyeshield LED lamp for classroom that CN201810417533.8 disclosed, including lamp shade, LED luminescence chip, blue light subduct the device, the beam split effect through the prism throws the position of difference with the light of different wavelengths, then subdues blue light and the complementary yellow light of blue light simultaneously, has so both avoided the blue light to harm eyesight and can keep the color balance of light source to guarantee the color rendering of light source again. In the mode, the LED chip needs to be redesigned and manufactured, so that the cost of the lamp is greatly increased, and the popularization is not facilitated.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a blue light removing coating which has the functions of removing harmful blue light and leaving harmless blue light, is uniform in spectral distribution, prevents glare due to the uniformity and softness of emergent illumination light, is convenient to implement and low in cost, and is beneficial to popularization. In order to achieve the purpose, the invention adopts the following technical scheme:
(II) technical scheme
The blue light removing coating comprises, by mass, 35.83% -37.23% of epoxy resin, 17.97% -18.75% of silver colloid, 13.85% -14.91% of red fluorescent powder, 12.74% -13.56% of green fluorescent powder, 5.88% -7.04% of blue fluorescent powder and 8.51% -13.73% of nano rare earth oxide.
Further, the red fluorescent powder is GP-0763B type fluorescent powder produced by the company Limited for new rare earth materials.
Further, the green phosphor is GP-2751 type phosphor produced by GmbH (rare earth new materials Co., Ltd.).
Further, the blue fluorescent powder is GP-0730 type fluorescent powder produced by the company Limited for new rare earth materials.
Further, the nano rare earth oxide is nano oxide of lanthanum or yttrium.
(III) advantageous effects
Compared with the prior art, the invention has obvious advantages and beneficial effects, particularly, the blue light removing coating is formed by adding the nano rare earth oxide with proper proportion and proportioning the fluorescent powder, and can be sprayed to the light-emitting surface of the LED chip in the packaging process, the implementation is convenient, the cost is low, the proportion of harmful blue light emitted by the manufactured blue light removing LED lamp is greatly reduced, the eye pathological hazard and the human rhythm hazard of myopia, cataract and macular lesion caused by blue light are effectively avoided, the proportion of harmless blue light is increased, the function of suppressing melatonin secretion is increased, the effect of making people be delightful is played, meanwhile, the spectrum distribution is uniform, the uniformity and softness of emergent illumination light are ensured, the glare is effectively avoided, and the invention is particularly suitable for replacing fluorescent lamps and common LED lamps in classrooms and protecting the eyesight of children.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a bar graph of retinal pigment epithelial cell damage values for various wavelengths of blue light;
FIG. 2 is a spectrum diagram of a fluorescent lamp at a color temperature of 6500K;
FIG. 3 is a spectrum diagram of a conventional LED lamp at 6500K color temperature;
FIG. 4 is a spectrum of example 1 at a color temperature of 6500K;
FIG. 5 is a spectrum of example 2 at a color temperature of 6500K;
FIG. 6 is a spectrum chart of example 3 at a color temperature of 6500K.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is further described with reference to the following detailed description and accompanying drawings.
In order to achieve the best effect, the red fluorescent powder, the pink green fluorescent powder and the blue fluorescent powder used in each embodiment are GP-0763B type fluorescent powder, GP-2751 type fluorescent powder and GP-0730 type fluorescent powder which are produced by new rare earth material research corporation respectively, and the nano rare earth oxide is also the nano rare earth oxide produced by new rare earth material research corporation.
Examples 1,
The blue light removing coating comprises, by mass, 37.23% of epoxy resin, 18.75% of silver colloid, 14.91% of red fluorescent powder, 13.56% of green fluorescent powder, 7.04% of blue fluorescent powder and 8.51% of nano lanthanum oxide (La)2O3) Uniformly spraying the blue light removing coating on the light emitting surface of the LED chip in the packaging process, wherein the spectrogram of the LED lamp manufactured by using the LED chip is shown in FIG. 4;
examples 2,
A blue light removing coating comprises, by mass, 35.83% of epoxy resin, 17.97% of silver colloid, 13.85% of red fluorescent powder, 12.74% of green fluorescent powder, 5.88% of blue fluorescent powder and 13.73% of nano yttrium oxide (Y)2O3) Uniformly spraying the blue light removing coating on the light emitting surface of the LED chip in the packaging process, wherein the spectrogram of the LED lamp manufactured by using the LED chip is shown in FIG. 5;
examples 3,
The blue light removing coating comprises, by mass, 36.57% of epoxy resin, 18.36% of silver colloid, 14.38% of red fluorescent powder and 13.16% of green fluorescent powderLight powder, 6.56 percent of blue fluorescent powder and 10.98 percent of nano lanthanum oxide (La)2O3) The blue light removing coating is uniformly sprayed on the light emitting surface of the LED chip in the packaging process, and the spectrogram of the LED lamp manufactured by the LED chip is shown in FIG. 6.
The embodiment shows that the blue light removing coating provided by the invention is convenient to implement and low in cost by adding the nano rare earth oxide with a proper proportion and spraying the nano rare earth oxide on the light emitting surface of the LED chip, so that the proportion of harmful blue light emitted by the LED lamp is greatly reduced, the eye pathological hazard and the human rhythm hazard of myopia, cataract and macular lesion caused by blue light are effectively avoided, the proportion of harmless blue light is increased, the function of suppressing melatonin secretion is increased, the effect of making people be delightful is achieved, meanwhile, the spectrum distribution is uniform, the uniformity and softness of emergent illumination light are ensured, and glare is effectively avoided.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims (5)

1. A blue-light removing coating, comprising: according to the mass percentage, the fluorescent powder comprises 35.83% -37.23% of epoxy resin, 17.97% -18.75% of silver colloid, 13.85% -14.91% of red fluorescent powder, 12.74% -13.56% of green fluorescent powder, 5.88% -7.04% of blue fluorescent powder and 8.51% -13.73% of nano rare earth oxide.
2. The anti-blue coating according to claim 1, wherein: the red fluorescent powder is GP-0763B type fluorescent powder produced by the company Limited for the research of new rare earth materials.
3. The anti-blue coating according to claim 1, wherein: the green fluorescent powder is GP-2751 type fluorescent powder produced by the company Limited for the research of new rare earth materials.
4. The anti-blue coating according to claim 1, wherein: the blue fluorescent powder is GP-0730 type fluorescent powder produced by the company Limited for the research of new rare earth materials.
5. The anti-blue coating according to claim 1, wherein: the nano rare earth oxide is nano oxide of lanthanum or yttrium.
CN202010936594.2A 2020-09-08 2020-09-08 Blue light removing coating Pending CN112029380A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112126209A (en) * 2020-09-24 2020-12-25 贵溪市清亮照明科技有限公司 Blue light removing photodiffusion material, photocureable coating and LED light source

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008031438A (en) * 2006-06-30 2008-02-14 Sanyo Chem Ind Ltd Photosensitive composition
CN106189166A (en) * 2016-07-20 2016-12-07 王玲 A kind of LED and preparation method thereof
CN108134003A (en) * 2017-12-29 2018-06-08 广东晶科电子股份有限公司 A kind of anti-blue light encapsulation LED light emitting device and its backlight module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008031438A (en) * 2006-06-30 2008-02-14 Sanyo Chem Ind Ltd Photosensitive composition
CN106189166A (en) * 2016-07-20 2016-12-07 王玲 A kind of LED and preparation method thereof
CN108134003A (en) * 2017-12-29 2018-06-08 广东晶科电子股份有限公司 A kind of anti-blue light encapsulation LED light emitting device and its backlight module

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
饶海波: "《半导体照明导论》", 30 April 2012, 电子科技大学出版社 *
黄美兴: "《电子电器维修技术》", 30 June 2010, 西南交通大学出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112126209A (en) * 2020-09-24 2020-12-25 贵溪市清亮照明科技有限公司 Blue light removing photodiffusion material, photocureable coating and LED light source

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Application publication date: 20201204

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