WO2022014802A1 - Lampe d'éclairage à del ayant une fonction de blocage de la lumière bleue - Google Patents

Lampe d'éclairage à del ayant une fonction de blocage de la lumière bleue Download PDF

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Publication number
WO2022014802A1
WO2022014802A1 PCT/KR2020/018590 KR2020018590W WO2022014802A1 WO 2022014802 A1 WO2022014802 A1 WO 2022014802A1 KR 2020018590 W KR2020018590 W KR 2020018590W WO 2022014802 A1 WO2022014802 A1 WO 2022014802A1
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WIPO (PCT)
Prior art keywords
blue light
light blocking
led
lighting lamp
led lighting
Prior art date
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Ceased
Application number
PCT/KR2020/018590
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English (en)
Korean (ko)
Inventor
이애정
배혜진
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PLUSWELL Co Ltd
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PLUSWELL Co Ltd
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Publication of WO2022014802A1 publication Critical patent/WO2022014802A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0041—Optical brightening agents, organic pigments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C08K5/132—Phenols containing keto groups, e.g. benzophenones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3472—Five-membered rings
    • C08K5/3475—Five-membered rings condensed with carbocyclic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C08L33/12—Homopolymers or copolymers of methyl methacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to an LED lighting lamp having a blue light blocking function, and more particularly, maximizes the blocking effect of blue light harmful to the human body, minimizes the change in the original color temperature of the LED light source, and minimizes the decrease in total light transmittance except for harmful blue light. It relates to an LED lighting lamp having a blue light blocking function, which can be applied to various lighting lamps regardless of the shape of the lighting lamp, has a beautiful exterior color and color temperature, and minimizes the increase in manufacturing cost due to blue light blocking.
  • LED lighting has the advantage that the energy efficiency is much superior to that of conventional incandescent lamps or fluorescent lamps, and the lifespan is long, and the brightness does not decrease even after long use. Lighting lamps used outdoors are being replaced with LED lighting instead of conventional incandescent or fluorescent lamps.
  • Korean Patent Publication Nos. 10-1638322 and No. 10-1876790 disclose LED lighting lamps and blue light blocking LED edge lighting including blue light blocking films, respectively, and their main technical configuration is LED module and diffusion It is characterized in that it is configured to block blue light generated from LEDs by installing a blue light blocking film or blue light blocking sheet between the plates or between the light guide plate and the diffusion sheet.
  • the prior art is configured to block blue light generated from the LED by using a blue light blocking film or blue light blocking sheet having a complex multi-layer structure, but the diffusion in which the blue light blocking film or blue light blocking sheet is installed
  • the plate or diffusion sheet has a curved shape rather than a flat surface, it is almost impossible to attach the blocking film or the blocking sheet to the diffusion plate or the diffusion sheet without wrinkles, and there is a partial gap between the blocking film or the blocking sheet and the diffusion plate or the diffusion sheet.
  • the prior art techniques can be applied only when the diffusion plate or the diffusion sheet is flat, and thus the application range is limited.
  • the conventional complex multi-layered blue light blocking film or blocking sheet has a relatively high color difference value (b*) compared to the blue light blocking rate, which causes the color temperature of the light source to change to yellow during illumination, so that the original color temperature of the LED light source cannot be maintained.
  • b* color difference value
  • the blue light blocking film or blocking sheet is placed on the back side of the white light diffusion front cover, the yellow color of the blue light blocking film or blocking sheet is exposed outside the white light diffusion front cover even when it is not lit, giving a yellowish color.
  • the blue light blocking film or blocking sheet applied in the prior art is made of PET material with relatively weak heat resistance and weather resistance, and thus gradually yellows over time. This yellowing phenomenon not only lowers the light transmittance of the lighting, but also changes the color temperature of the light passing through the blue light blocking film or blocking sheet, so ultimately the blue light blocking film or blocking sheet loses its original function. There are also problems with doing it.
  • the blue light blocking film or blocking sheet having a complex multilayer structure applied to the prior art has the disadvantage of increasing the manufacturing cost of the entire LED lighting due to the high manufacturing cost, and it is practically difficult to produce small quantities of various types due to the complicated manufacturing process. There are also problems.
  • the present invention has been devised to solve the problems of the prior art as described above, and an object of the present invention is to provide a blue light blocking function to the lens-type cover attached to the front part of the LED light source, thereby blocking the effect of blocking blue light harmful to the human body. It is to provide an LED lighting lamp having a blue light blocking function that minimizes the change in the original color temperature of the LED light source during illumination while maximizing and minimizes the decrease in total light transmittance except for harmful blue light.
  • the present invention does not use a separate sheet or film for blocking blue light, it can be applied to lighting lamps having various shapes, such as flat lighting lamps as well as lighting lamps including curved surfaces, and is attached to the front part of the LED light source
  • the yellow-colored blue light blocking agent according to the composition of the blue light blocking agent included in the lens-type cover does not shine out of the light diffusion front cover, so the exterior color and color temperature of the lighting are beautiful, and the increase in manufacturing cost due to the blue light blocking function can be minimized.
  • Another object is to provide an LED lighting lamp having a blue light blocking function.
  • an LED lighting lamp comprising an LED module in which one or more LED light sources are installed, a transparent resin made of any one of polymethyl methacrylate (PMMA), polycarbonate (PC), and silicone on the front of the LED light source, and a mixture of a blue light blocking agent It is characterized in that the lens-type cover having a blue light blocking function formed by injection, casting, or dispensing is combined.
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • silicone silicone
  • the blue light blocking agent is a mixture of propanedioic acid in excess of 99.5 wt%, [[4-(dimethylamino)phenyl]methylene]-, dimethylester and less than 0.5 wt% of methanol; or 40-50 wt% of Octyl 3-[3-tert-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionate and 2-Ethylhexyl 3-[3-tert-butyl- 5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionate in a composition containing 50 to 60% by weight; It is characterized in that any one or more of.
  • the light transmittance of the LED lighting lamp is characterized in that 50% or less at a wavelength of 420 nm to 450 nm.
  • the lens-type cover attached to the front part of the LED light source is provided with a blue light blocking function, so that a separate sheet or film for blocking blue light is not used, so that not only flat lighting lamps but also lighting lamps including curved shapes, etc. It can be applied to lighting lamps having various shapes, and by excluding the use of a light guide plate and a blue light blocking sheet or film, it has an excellent effect of reducing the weight of the lighting lamp and reducing the manufacturing cost.
  • the blocking of harmful blue light wavelength range of 400 ⁇ 450 nm among the wavelength range of 400 ⁇ 500 nm of blue light emitted from the light source is effectively optimized
  • it has the additional effect of showing excellent light efficiency by minimizing the decrease in the total light transmittance except for harmful blue light.
  • the blue light blocking agent composition exhibits a yellowish appearance when not illuminated and minimizes the change in the original color temperature of the LED light source during illumination, thereby providing a lighting lamp with a beautiful appearance and color temperature.
  • FIG. 1 is a view showing an embodiment of an LED lighting lamp having a blue light blocking function according to the present invention.
  • Figure 2 (a), (b) is a view showing another embodiment of the LED lighting having a blue light blocking function according to the present invention.
  • 3 is a view showing the distribution of POWER by wavelength of an LED light source used for LED lighting.
  • FIG. 4 is a view showing the blue light blocking test results of the LED lighting having a blue light blocking function according to the present invention.
  • FIG. 1 is a view showing an embodiment of an LED lighting lamp having a blue light blocking function according to the present invention
  • FIGS. 2 (a) and (b) are another embodiment of an LED lighting lamp having a blue light blocking function according to the present invention
  • 3 is a diagram showing the distribution of POWER by wavelength of an LED light source used for LED lighting
  • FIG. 4 is a diagram showing the blue light blocking test results of the LED lighting having a blue light blocking function according to the present invention.
  • the present invention maximizes the effect of blocking blue light that is harmful to the human body, and minimizes the phenomenon that the exterior color of the lighting turns yellow during illumination or non-illumination due to the addition of a blue light blocking agent, and minimizes the decrease in total light transmittance except for harmful blue light, thereby providing excellent light efficiency
  • the LED module 110 serves as a light source for the lighting lamp 100 , and includes a printed circuit board (PCB) 114 on which an electric circuit of a predetermined pattern is formed, and the printed circuit board 114 .
  • One or more LED light sources 112 that are installed on and generate light.
  • a lens-type cover 116 is coupled to the front portion of the LED light source 112, and the lens-type cover 116 allows to widen the irradiation angle of light emitted from the LED light source 112 and at the same time, It plays a role to show a uniform luminance distribution within a wide irradiation angle, and is made of a transparent material such as PMMA (Polymethyl Methacrylate), PC (Polycarbonate), and silicon.
  • PMMA Polymethyl Methacrylate
  • PC Polycarbonate
  • the frame 120 serves as an enclosure and heat dissipation of the lighting lamp 100 , and may have various shapes such as a flat plate shape, a polygonal shape, or a circular shape depending on the shape of the lighting lamp 100 .
  • the LED module 110 is installed inside the frame 120 , and a front cover 130 , which will be described later, is fixedly installed on the front end or the outer edge of the frame 120 .
  • the front cover 130 is fixed to the frame 120 so as to be spaced a predetermined distance toward the front of the LED module 110 to seal the LED module 110 installed inside and at the same time to the LED light source 112 .
  • it is formed in a flat plate shape depending on the shape of the frame 120, or both edges It may be formed in various shapes such as a 'C' shape in which the part is bent, a curved shape, and the like.
  • the front cover 130 is generally made of a transparent plastic material.
  • the front cover 130 includes a light diffusing agent capable of scattering or diffusing the light generated from the LED light source 112 .
  • a technology is used to improve the light transmittance of the cover 130 and at the same time to show uniform brightness as a whole.
  • a blue light blocking sheet or blocking film is combined with the front cover 130 or the light guide plate (not shown).
  • a blue light blocking film or blue light blocking sheet that is, a conventional complex multi-layered blue light blocking film or blocking sheet has a color difference value (b*) of blue light.
  • b* color difference value
  • the color temperature of the light source changes to yellow when lighting is relatively high compared to the blocking rate, so that the original color temperature of the LED light source 112 cannot be maintained.
  • the yellow color of the blue light blocking film or blocking sheet is exposed outside the white light diffusion front cover 130 even when the blocking sheet is not illuminated, and the color becomes yellowish, thereby impairing the aesthetics of the lighting.
  • the lens-type cover 116 coupled to the front part of the LED light source 112 is configured to have a blue light blocking function, thereby light having a wavelength corresponding to the blue light included in the light generated from the LED light source 112 .
  • Silver can be irradiated through the front cover 130 while being blocked by the lenticular cover 116 .
  • the lens-type cover 116 includes a blue light blocking agent, and the blue light blocking agent serves to block light of a wavelength corresponding to the blue light included in the light generated from the LED light source 112, Among blue light, it mainly blocks blue light with a wavelength of 400 to 450 nm, which is known to be harmful to the human body.
  • the lenticular cover 116 may be formed by injecting, casting, or dispensing a mixture of a transparent resin and a blue light blocking agent made of any one of polymethyl methacrylate (PMMA), polycarbonate (PC), and silicone.
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • silicone silicone
  • composition comprising 50 to 60 wt% mixture; 4-methyl-7-diethylaminocoumarin; a compound of thiophene and benzene as a blue light-emitting agent; 4-(phenyldiazenyl)phenyl-2-methacrylate; 2,2'-dihydroxy-4,4'-dimethoxybenzophenone; or 2,2', 4,4' tetrahydroxybenzophenone; Any one or more of them may be included in combination.
  • blue light blocking agent 2,5-bis(5-t-butylbenzoxazol-2-yl) or a UV stabilizer may be used, and depending on the type and amount of the blue light blocking agent used, it is blocked. It is possible to adjust the wavelength and amount of blue light, and the phenomenon in which the external color of the lighting lamp 100 changes to yellow when illuminated or not illuminated.
  • a mixture of a composition containing more than 99.5% by weight of propanedioic acid, [[4-(dimethylamino)phenyl]methylene]-, dimethylester, and less than 0.5% by weight of methanol is harmful to the human body 400 ⁇
  • the blue light with a wavelength of 450 nm it mainly blocks blue light above 420 nm, which is a relatively long wavelength
  • Octyl 3-[3-tert-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4 Contains 40-50 wt% of -hydroxyphenyl]propionate and 50-60 wt% of 2-Ethylhexyl 3-[3-tert-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionate
  • the amount of the blue light blocking agent is preferably 0.1 to 0.5 parts by weight based on 100 parts by weight of the lenticular cover 116 in total, and 400 to 420 nm of blue light corresponding to a short wavelength.
  • the amount of the blue light blocking agent injected must be increased or decreased according to the thickness of the lens type cover 116 .
  • the lens-type cover 116 includes a blue light blocking function as described above, there is an advantage in that it is possible to fundamentally block blue light corresponding to a wavelength harmful to the human body included in the light generated from the LED light source 112. .
  • the blue light of the LED light source 112 of general LED lighting is intensively emitted at a wavelength of 435 to 450 nm.
  • the aesthetics are not very good.
  • the color temperature of the lighting lamp 100 is set and manufactured according to the purpose, and the blue light is an important wavelength that determines the color temperature of the lighting lamp 100. direction, and as the amount of blocking of blue light decreases, the color temperature appears in the direction of bright daylight.
  • the addition of the blue light blocking agent causes a difference in the degree to which the exterior color of the lighting turns yellow when illuminated or not illuminated, so the blue light blocking agent is directly related to the light efficiency of the lighting lamp 100 . It is very important to be
  • the wavelength region of blue light harmful to the human body is divided again, and the relatively short wavelength of 400 to 420 nm is Octyl 3-[3-tert-butyl-5-(5-chloro-2H-benzotriazol-2-yl)- 40-50 wt% of 4-hydroxyphenyl]propionate and 50-60 wt% of 2-Ethylhexyl 3-[3-tert-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionate
  • a composition containing a mixture of a composition containing By varying the blocking rate for each wavelength region by controlling the content of the two mixtures, it effectively blocks blue light that is harmful to the human body, minimizes the decrease in light efficiency, and minimizes the change in the set color temperature of the lighting and has a beautiful appearance ( 100) is characterized in that it is configured to provide, and this is a part that is different from the prior art.
  • the light transmittance of the LED lighting lamp 100 be 50% or less at a wavelength of 420 nm to 450 nm.
  • FIG. 4 shows the blue light blocking test results of the LED lighting lamp 100 according to the present invention.
  • the lens-type cover 116 is manufactured using a PC resin, which is a transparent resin, and is shown in red.
  • the lens-type cover 116 is manufactured using PMMA resin, which is a transparent resin as well.
  • FIG. 4 in comparison 1 and 2, there is no effect of blocking blue light with a wavelength of 400 to 450 nm at all. It can be seen that the blocking effect of blue light appears when A mixture of the composition comprising ⁇ 50% by weight and 2-Ethylhexyl 3-[3-tert-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]propionate 50-60% by weight is Blocks 400-420 nm, which is a relatively short wavelength, and also contains more than 99.5 wt% of propanedioic acid, [[4-(dimethylamino)phenyl]methylene]-, dimethylester and less than 0.5 wt% of methanol, which are also contained by 0.1 parts by weight. The mixture of the composition of You can check what you can do.
  • the lens-type cover 116 attached to the front part of the LED light source 112 is provided with a blue light blocking function to block blue light. Because a separate sheet or film is not used for (100) can be lightened and manufacturing cost can be reduced, and harmful blue light in the blue light wavelength range 400 to 500 nm emitted from the light source is emitted through the application of the best blue light blocking agent and composition, and the most suitable blue light blocking method for the structure and shape of the lighting lamp 100 While effectively optimizing the blocking of 400 ⁇ 450nm wavelength region, it minimizes the decrease in total light transmittance except for harmful blue light, so that excellent light efficiency can be shown. 112) It has various advantages such as being able to provide the lighting lamp 100 with a beautiful appearance and color temperature by minimizing the change in the original color temperature.
  • the present invention relates to an LED lighting lamp having a blue light blocking function, and more particularly, maximizes the blocking effect of blue light harmful to the human body, minimizes the change in the original color temperature of the LED light source, and minimizes the decrease in total light transmittance except for harmful blue light. It relates to an LED lighting lamp having a blue light blocking function, which can be applied to various lighting lamps regardless of the shape of the lighting lamp, has a beautiful exterior color and color temperature, and minimizes the increase in manufacturing cost due to blue light blocking.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention porte sur une lampe d'éclairage à DEL ayant une fonction de blocage de la lumière bleue, et plus précisément sur une lampe d'éclairage à DEL ayant une fonction de blocage de la lumière bleue qui maximise l'effet de blocage de la lumière bleue qui est nocive pour le corps humain, réduit au minimum un changement de la température de couleur d'origine d'une source de lumière à DEL, et réduit au minimum une diminution de la transmittance de la lumière totale à l'exception de la lumière bleue nocive afin d'obtenir une excellente efficacité lumineuse, et qui peut simultanément être appliquée à diverses lampes d'éclairage indépendamment de la forme de la lampe d'éclairage, a une belle couleur extérieure et une belle température de couleur, et réduit au minimum l'augmentation du coût de fabrication due au blocage de la lumière bleue.
PCT/KR2020/018590 2020-07-14 2020-12-17 Lampe d'éclairage à del ayant une fonction de blocage de la lumière bleue Ceased WO2022014802A1 (fr)

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KR10-2020-0086766 2020-07-14
KR20200086766 2020-07-14

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