KR101113589B1 - Antiglare plate for lighting device and menufacture method thereof - Google Patents

Abstract

PURPOSE: An antiglare plate for lighting device and a manufacturing method thereof are provided to prevent glare by controlling the number of rotation in mixing a liquid resin and forming bubbles. CONSTITUTION: A light refraction tool(21) refracts and diffuses the light emitted from a lighting device. A lens is formed into a pattern in which a resin including a bead is casted. The size of bubbles are 1um ~ 1mm. The resin has one of a single layer, a double or a non-uniform layer therein. The resin has a color since one of a dye and a fluorescent substance is added to the resin.

Description

Anti-glare plate and its manufacturing method {Antiglare plate for lighting device and menufacture method

The present invention relates to an anti-glare plate and a method for manufacturing the same, and more particularly, to prevent glare by preventing the glare without inhibiting the transmittance of light emitted from the lighting device to prevent glare by high-brightness And an anti-glare plate having high illuminance efficiency and a method of manufacturing the same.

Display devices represented by CRT, LCD, organic EL, LED, etc., and lighting devices that emit light in various colors have made remarkable developments in light diffusion, high definition of images, and low price, especially in the case of lighting using the LEDs. Luminance and color are more natural than fluorescent lamps and are widely applied to interior lightings.

Therefore, in order to efficiently use the light output from the light source together with the development of the display device or the lighting to which the LED is applied as described above, the development of technologies such as a diffusion plate and an anti-glare coating have been actively progressed.

For example, in the lighting device is released as a product provided as an integrally fixed to the glare fixing plate on the front of the light source, or for the interior interior light diffusion in the indoor wall or showcase, such as the indoor wall or showcase illuminated by the lighting device An anti-glare plate or a diffuser plate was installed to prevent glare.

Conventionally, a diffusion plate was manufactured in the form of extrusion or coating by adding a transparent polymer resin and inorganic oxide fine particles or using a resin having a different refractive index for use as an anti-glare plate or a diffusion plate.

However, the diffusion plate and the anti-glare plate manufactured in this way has a problem in that it requires a lot of light in order to secure as much light as the loss of light, so that it is formed low in terms of energy efficiency.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to increase the diffusion and refractive index of the incident light by forming a bubble in the mixed liquid resin by controlling the rotation speed when mixing the liquid resin It is possible to prevent glare and to provide an anti-glare plate suitable for a wall or showcase for the lighting device and the interior of the room and a manufacturing method thereof.

In addition, another object of the present invention is to provide an anti-glare plate and a method of manufacturing the same that can increase the diffusion and refractive index of the light output from the light source of the lighting device by mixing and curing beads made of a transparent or semi-transparent material in a liquid resin. Is in.

In addition, another object of the present invention is to provide an anti-glare plate and a method of manufacturing the same to increase the diffusion and refractive index of the light output from the light source by curing the patterned substrate and the resin containing bubbles or beads on the substrate. Is in.

The present invention includes the following examples in order to achieve the above object.
Anti-glare plate according to the present invention is a liquid silicone resin, polystyrene (Polystyrene), polycarbonate (Polycarbonate), epoxy, polymethyl methacrylate (Polymethylmetacrylate), polyethylene terephthalate (Polyethyleneterephthalate), polypropylene (Polyprophylene) is mixed Resin; And light refractive means for diffusing and refracting the light emitted from the lighting apparatus by mixing with the resin, wherein the light refractive means is manufactured as a bubble generated in the process of mixing the resin or a light transmitting material mixed with the resin. It is a lens having a light-transmissive material is formed a pattern having at least one of the shape of a circle, square, oblique line, projection, rhombus is cast resin containing the bead, the bubble has a size of 1㎛ ~ 1mm, It is formed of any one of a single layer, two layers, or a non-uniform layer in the resin, the beads are transparent beads made of any one of hollow silica, silica, styrene-based, acrylic-based, colored beads, dyes, phosphors It is characterized in that it is mixed at 1 to 30% by weight compared to the resin as one of the bead added.
In the anti-glare plate according to the present invention, the resin is characterized in that any one of a dye or a phosphor is added to have a color.
Anti-glare manufacturing method according to the present invention is a liquid silicone resin, polystyrene (Polystyrene), polycarbonate (Polycarbonate), epoxy, polymethyl methacrylate (Polymethylmetacrylate), polypropylene (Polyprophylene), polyethylene terephthalate (Polyethyleneterephthalate) A bead mixing step of mixing the beads made of a transparent or translucent light-transmitting material to the resin mixed with the above, and removing the generated bubbles; Transparent or translucent light-transmitting material, at least one of liquid silicone resin, polystyrene, polycarbonate, epoxy, polymethylmethacrylate, polyprophylene, polyethylene terephthalate A bubble forming step of mixing the bubbles to adjust the size of the bubbles by adjusting the RPM of the mixer, and irradiating ultrasonic waves to remove unnecessary bubbles from the generated bubbles; A pattern forming step of forming a pattern having at least one of a shape of a circle, a square, an oblique line, a protrusion, and a rhombus by using a mold on a lens made of a light transmitting material; A flattening step of flattening the resin mixed in the bead mixing step or the resin mixed in the bubble forming step on the upper surface of the lens on which the pattern is formed in the pattern forming step by a casting or extrusion method; And a curing step of curing the resin in which the beads cast or the bubbles are formed at the temperature of 100 to 180 degrees through the planarization step.

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According to the present invention, as one or more of bubbles, beads, or patterns are included in the lighting apparatus as described above, light transmittance may be increased instead of decreasing light transmittance, thereby diffusing light, thereby preventing glare. In addition, since the efficiency of illuminance can be increased, high brightness light can be provided.

In addition, the present invention can prevent the glare of the light incident from the surrounding lights when applied to the interior wall surface using the interior or outdoor lighting such that the pattern or picture having a variety of colors can produce a variety of interior lighting effect It works.

1 is a cross-sectional view showing a first embodiment of an antiglare plate according to the present invention;
2 is a cross-sectional view showing another example of the first embodiment of the anti-glare plate according to the present invention;
3 is a cross-sectional view showing a non-uniform layer showing another example in the first embodiment of the anti-glare plate according to the present invention,
4 is a cross-sectional view showing a second embodiment of an anti-glare plate according to the present invention;
5 is a partial plan view showing an example of a pattern applicable to the second embodiment in the anti-glare plate according to the present invention;
Figure 6 is a flow chart showing a first embodiment of the anti-glare plate manufacturing method according to the present invention,
7 is a flowchart showing an example in which beads are applied in the first embodiment of the anti-glare plate manufacturing method according to the present invention;
8 is a flowchart illustrating a second embodiment of a method for manufacturing an antiglare plate according to the present invention.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the anti-glare plate according to the present invention will be described in detail.

1 is a cross-sectional view showing an anti-glare plate having a single layer of the first embodiment of the anti-glare plate according to the present invention, Figure 2 is an anti-glare plate having a double layer of the first embodiment of the anti-glare plate according to the present invention 3 is a cross-sectional view showing an anti-glare plate having a non-uniform layer of the first embodiment of the anti-glare plate according to the present invention.

1 to 3, the anti-glare plate 2 according to the present invention is fixed to the path of the light output from the light source (for example, the LED light emitting element 1) of the lighting device to prevent glare. The anti-glare plate 2 includes a resin and light refractive means 21 which is mixed with the resin and cured.

The resin is a transparent or translucent light-transmissive material of liquid silicone resin, polystyrene, polycarbonate, epoxy, polymethyl methacrylate, polyethylene terephthalate, polyprophylene One or more are mixed.

Here, the resin may be applied with a resin having a color by adding a dye or a phosphor according to a user's needs. This is very useful as the anti-glare plate can be added to the wall or showcase or lighting device for the interior and exterior interior effect.

The optical refraction means 21 is selectively applied among bubbles or spherical beads formed in the process of mixing a liquid resin to have a circular or elliptical shape, and is mixed with the resin and cured. Of these, the optical refraction means 21 including the bubbles may be formed as either a single layer (see FIG. 1) or a non-uniform layer (see FIG. 3) that is arranged so as to form a two layer (see FIG. 2) or is unevenly positioned so that the layers are not divided. do.

Further preferably, the size of the bubbles is suitably 1 µm to 1 mm, and more preferably light diffusivity at 1 µm to 700 µm.

 The optical refraction means 21 using the bubble may be arranged in a single layer, two layers as shown in FIG. 2 by adjusting the number of revolutions of the mixer in the mixing process of the resin, as shown in FIG. As shown in the figure, a non-uniform layer can be refracted to prevent glare. This will be described later using the flowchart of FIG. 6.

The beads are preferably 100 nm to 1 mm, of which 500 nm to 500 μm are most suitable. The beads are made of a group comprising silica, an acrylic polymer, a styrene polymer, and inorganic particles, and are selectively applied according to a user's need among colorless or color beads.

Here, the light refraction means 21 selecting the beads having the color can be applied to decorative walls, showcase lamps, or lighting devices for interior and exterior interiors. Of course, the lamp can be implemented through the intrinsic color of the beads as described above, and the addition of dyes or phosphors to the resin in addition to the colored beads can be given a characteristic of each different color. .

In the present invention, the optical refraction means 21 using bubbles or beads is added in the manufacture of the anti-glare plate 2, but the present invention is not limited thereto, and the substrate having various patterns 22 is added to increase the light diffusion and refractive index. Various embodiments are possible. Another example of this will be described with reference to FIGS. 4 and 5.

4 is a sectional view showing a second embodiment of the anti-glare plate 2 according to the present invention, and FIG. 5 is a partial plan view showing a pattern 22 of the second embodiment in the anti-glare plate 2 according to the present invention. to be.

4 and 5, in the anti-glare plate 2 according to the present invention by using a lens mold, a circular, square, oblique line, projection (cone, triangular pyramid, square pyramid, pyramid pyramid), on the lens surface of the light transmissive material, Optical refractive means 21 mixed with the resin including a lens having a pattern 22 having at least one of a rhombus shape, a resin applied and cured on the lens, and one of beads or bubbles in the resin; It includes.

That is, the second embodiment of the present invention is further provided with a substrate on which the pattern 22 having various shapes as described above in the configuration of the first embodiment including the resin and the light refractive means 21 is formed. The substrate reflects the light diffused by the light refraction means 21 by various patterns 22 formed on the surface thereof, thereby allowing the substrate to be reincident to the light refraction means 21 to increase the degree of light diffusion.

The present invention includes the configuration as described above, in the following will be described in detail with reference to Figure 6 to 8 the manufacturing method of the anti-glare plate 2 as described above.

6 is a flow chart showing a first embodiment of the anti-glare plate 2 manufacturing method according to the present invention.

Referring to Figure 6, the anti-glare plate 2 manufacturing method according to the present invention is to adjust the size of the bubble by adjusting the number of revolutions in the mixing step (S11), and the mixing step (S11) for mixing the liquid resin A bubble control step (S12), an ultrasonic irradiation step (S13) for arranging the bubbles as one of a single layer, a two-layer or a non-uniform layer by irradiating ultrasonic waves, and a flattening step (S14) for flattening the mixed resin, and flattening It includes a curing step (S15) for curing the resin.

The mixing step (S11) is a transparent or translucent light transmissive material, liquid silicone resin, polystyrene, polycarbonate, polycarbonate, epoxy, polymethylmethacrylate, polyprophylene, polyethylene terephthalate ( Mixing at least one of polyethylene terephthalate) in a mixer.

The bubble control step (S12) is a step of adjusting the size of the bubble formed during the mixing process of the liquid resin by adjusting the rotational speed (RPM) of the mixer in which the mixed silicone resin is mixed. In order to achieve the object of the present invention, the bubble is suitably 1 μm to 1 mm, and more preferably has a light diffusivity at 1 μm to 700 μm.

The size of the bubble is determined by the number of revolutions of the mixer. For example, if the mixer is 10000rpm, if the bubble size is 10 ~ 100㎛, the rotation speed is 5000rpm 50 ~ 500㎛, below 5000rpm has a size of 50㎛ ~ 2mm. By referring to the size of the bubble according to the rotational speed, the size of the bubble suitable for the present invention can be set, and a bubble having the set size can be formed.

The ultrasonic irradiation step (S13) is a step of irradiating the ultrasonic wave to adjust the bubbles generated by mixing in the mixer. The bubbles can be extinguished by ultrasonic waves, and in the present invention, the bubbles can be formed into a single layer (see FIG. 1), a double layer (see FIG. 2), or a non-uniform layer (see FIG. 3).

For example, in order to configure the formation of bubbles in the mixed resin as a single layer, an operator may apply ultrasonic waves to the bubbles formed in addition to the bubbles arranged in a single layer to dissipate the bubbles. In the same manner, the worker irradiates ultrasonic waves to bubbles generated at a position other than the bubbles generated at a predetermined position in the second layer in order to configure the bubbles in two layers.

In the above, the non-uniform layer means that the bubbles are evenly formed throughout the mixed resin solution without being arranged while forming one row such as a single layer or two layers. Therefore, in the case of the non-uniform layer, bubbles are formed throughout the resin mixture, so that ultrasonic waves are not irradiated or the bubbles larger or smaller than the size set in the bubble control step can be selectively disappeared.

The flattening step S14 is a step of flattening the upper and lower surfaces by casting or extruding the mixed resin into the mold. When the extrusion method is applied in the planarization step, the polymer resin is heated and melted, and the melted polymer resin is mixed using an impeller to form bubbles and extruded to planarize. Alternatively, when the casting method is used in the flattening step, the resin is mixed and poured into a mold to flatten the resin to form a flat surface through the curing step (S15) below.

The curing step (S15) is a step of curing the resin forming a plate through the planarization step (S14) within a temperature of 100 ~ 180 ℃.

Therefore, the anti-glare plate (2) is formed through the process proceeded through the steps as described above, the bubble is cured by forming a single layer or two or non-uniform layer.

The above method is for forming a bubble, hereinafter will be described in detail with reference to Figure 7 the manufacturing method of the anti-glare plate 2 to which the beads are applied.

7 is a flowchart illustrating an example in which beads are applied in the first embodiment of the anti-glare plate manufacturing method according to the present invention.

Referring to FIG. 7, a bead mixing step (S21) for mixing beads in a liquid resin, a degassing step (S22) for removing bubbles from the mixed solution in which the beads are mixed, and a planarization step (S23) for planarization by a casting or extrusion method ), And a curing step (S24) for curing the flattened resin.

The bead mixing step (S21) is a transparent or translucent light transmissive material, liquid silicone resin, polystyrene, polycarbonate, polycarbonate, epoxy, polymethylmethacrylate, polyprophylene, polyethylene terephthalate It is a step of mixing the beads in the liquid resin mixed with one or more of (polyethyleneterephthalate). Here, the beads are made of silica or an inorganic oxide, and if the total resin amount is 70 to 99% by weight, the beads may be added as a ratio of 1 to 30% by weight. In general, beads sold on the market vary in size from 1 nanometer to 1 mm, and thus, it is preferable to select and apply beads having a size (1 μm to 1 mm) similar to the size of the aforementioned bubble. In addition, when the bead is applied to a lighting device having a color, beads having a color may be mixed, or beads made of a transparent or translucent material may be mixed.

The defoaming step (S22) is a step of removing bubbles in the resin mixed with the beads. Here, the defoaming step (S22) is omitted as the bubble is removed by applying ultrasonic waves as described above or by applying other known techniques.

The flattening step (S23) is a step of flattening the resin mixed with the beads by a casting or extrusion method. As the resin mixed with the beads is partially hardened, in the case of casting, the mixed liquid resin is poured into a mold and spread to have a flat surface to produce a flat plate.

The curing step (S24) is a step of curing the resin mixed with the bead through the planarization step (S23) in an environment maintained at a temperature of 100 ~ 180 degrees. In this step, the cured antiglare plate 2 is fixed to the front of the light emitting device 1 in each lighting device to prevent glare. In addition, the present invention may form a predetermined pattern 22 on the lens through the extrusion or injection process, it can be combined with the resin in which the beads or bubbles are formed to produce an anti-glare plate (2). Such a method of manufacturing the anti-glare plate 2 according to the second embodiment of the present invention will be described in detail with reference to FIG. 8.

8 is a flowchart illustrating a second embodiment of a method for manufacturing an antiglare plate of the optical output device according to the present invention.

Referring to Figure 8, the second embodiment of the manufacturing method of the anti-glare plate according to the present invention is a pattern forming step (S31) for forming a pattern 22 on the lens of the transparent or translucent material, and bubbles in the liquid resin Resin mixing step (S32) of producing or mixing the beads, a flattening step (S33) for casting and flattening the liquid resin to the lens on which the pattern 22 is formed, and a curing step (S34) for curing the liquid resin It includes.

The pattern forming step S31 is a step of forming a pattern 22 on an upper surface of a lens made of a light transmissive material. Here, the pattern 22 of the lens is manufactured to have at least one of circular, square, oblique, protrusion (cone, triangular pyramid, square pyramid, polygonal pyramid), and rhombus shape on the lens surface of the light transmissive material using a mold. The lens is manufactured through a mold, which is omitted as the known technique is applied.

The resin mixing step (S32) is a step of forming a bubble in the process of mixing the beads in the liquid resin or mixing the resin. As described above, the size of the bubble is determined according to the rotational speed of the mixer, and preferably, the size of 1 μm to 1 mm is preferable. In addition, the beads are also the same, and the beads made of a light-transmissive material having a color according to the color of the lighting device is optionally mixed with the liquid resin.

In the flattening step S33, the mixed resin in which beads are mixed or bubbles are cast and flattened on the upper surface of the lens on which the pattern 22 is formed. That is, the mixed resin is cast on the upper surface of the lens manufactured in the injection or extrusion form.

The curing step (S34) is a step of curing the mixed resin cast on the lens in the flattening step (S33) to a temperature of 100 ~ 180 degrees. When the mixed resin is cured on the upper surface of the lens as described above, it is fixed in front of the light emitting device (1) of the illumination device. The configuration and method for fixing the anti-glare plate 2 in the lighting device is generally any one of known techniques, and a detailed description thereof will be omitted.

As described above, the present invention manufactured the anti-glare plate 2 through the first embodiment and the second embodiment. Therefore, the illumination device to which the anti-glare plate 2 according to the present invention is applied prevents glare because the light emitted from the light emitting element 1 of the illumination device is diffused and refracted by the substrate or the bubble or the pattern 22. Can be.

Although the example described above has been described in that it is installed in front of the light source of the lighting device to prevent glare, the present invention can be used as an indoor interior article as various applications. For example, the present invention is a pattern or a picture having a variety of colors on the front of the anti-glare plate through the process of deposition or film adhesion, or the film is a pattern or picture is attached to the wall surface is illuminated by a lamp Can be installed on In addition, even when the lighting device is directly installed and installed directly around the decentering plate, the reflectance is lowered as the light is refracted and diffused, thereby producing a more diverse atmosphere.

Although the present invention has been described in detail with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and variations belong to the appended claims.

1: light emitting element 2: anti-glare plate
21: light refractive means 22: pattern

Claims (14)

delete delete delete delete delete delete delete Resins in which at least one of liquid silicone resin, polystyrene, polycarbonate, epoxy, polymethylmethacrylate, polyethylene terephthalate, and polyprophylene are mixed; And
And a light refracting means mixed with the resin for diffusing and refracting the light emitted from the lighting apparatus.
The optical refraction means
A pattern having at least one of circular, square, oblique, projection, and rhombus shapes in which a resin, including a bubble produced in the process of mixing the resin or a bead made as a light-transmissive material mixed with the resin, is cast is formed. It is a lens having a light transmissive material,
The bubble has a size of 1 μm to 1 mm, and is formed of any one of a single layer, two layers, or a non-uniform layer in the resin,
The bead is any one of a transparent bead made of any one of hollow silica, silica, styrene, and acrylic, bead having a color, and one of dyes and phosphors added, 1 to 30, compared to the resin. Anti-glare plate mixed by weight. The method of claim 8, wherein the resin is
An anti-glare plate, characterized in that it is colored by addition of either dyes or phosphors. delete delete delete delete Transparent or translucent light on resin mixed with at least one of liquid silicone resin, polystyrene, polycarbonate, epoxy, polymethylmethacrylate, polyprophylene, polyethylene terephthalate A bead mixing step of mixing the beads made of a permeable material and removing the generated bubbles;
Transparent or translucent light-transmitting material, at least one of liquid silicone resin, polystyrene, polycarbonate, epoxy, polymethylmethacrylate, polyprophylene, polyethylene terephthalate A bubble forming step of mixing the bubbles to adjust the size of the bubbles by adjusting the RPM of the mixer, and irradiating ultrasonic waves to remove unnecessary bubbles from the generated bubbles;
A pattern forming step of forming a pattern having at least one of a shape of a circle, a square, an oblique line, a protrusion, and a rhombus by using a mold on a lens made of a light transmitting material;
A flattening step of flattening the resin mixed in the bead mixing step or the resin mixed in the bubble forming step on the upper surface of the lens on which the pattern is formed in the pattern forming step by a casting or extrusion method; And
The anti-glare plate manufacturing method comprising a curing step of curing the resin mixed with the beads or the bubble is formed at the temperature of 100 ~ 180 degrees cast through the planarization step.

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