KR20090015400A - LED lighting - Google Patents

Abstract

The present invention relates to an LED lighting device capable of performing a far infrared ray emission function together with an illumination function, including a material capable of emitting far infrared rays beneficial to a human body. The present invention, a light guide plate for guiding light; A light source for supplying the light and disposed on a side surface of the light guide plate; And a case configured to receive and fix at least a portion of the light source and the light guide plate therein, and further comprising a far infrared ray emitting material.

Description

LED lighting device {Light emitting diode light}

The present invention relates to an LED lighting device, and more particularly to an LED lighting device that can release the far infrared rays beneficial to the human body to promote the blood circulation of the human body to relieve physical fatigue of the human body.

LED (Light Emitting Diode) lighting device has a number of advantages over the conventional lighting device, it is widely used as a back light (liquid crystal dislay) (LCD), a mobile phone, a portable digital device, or an independent lighting device.

LED lighting devices consume much less power than conventional lighting equipment. One tenth of incandescent bulbs and one half of fluorescent lamps emit the same brightness. In addition, LED (Light Emitting Diode) lighting device has a long life LED. Incandescent lamps use only 1000 to 4000 hours, while LEDs can use 50,000 to 100,000 hours. Its low cost of replacement and maintenance makes it suitable for high replacement costs such as building exterior walls and swimming pool large street lights.

LED lighting device generates less heat. Unlike incandescent lamps and fluorescent lamps, the LED is not hot at all. In addition, its small size allows only 32 LED chips of less than 1mm to emit as bright light as a fluorescent lamp, making it ideal for portable applications. In addition, it is not broken and is suitable for use in a car or an airplane. Like fluorescent lamps, there is no need to use heavy metals such as mercury, making it environmentally friendly.

An object of the present invention is to provide an LED lighting device that can perform a far infrared ray emission function together with an illumination function, including a material capable of emitting far infrared rays beneficial to the human body.

The present invention, a light guide plate for guiding light; A light source for supplying the light and disposed on a side surface of the light guide plate; And a case configured to receive and fix at least a portion of the light source and the light guide plate therein, and further comprising a far infrared ray emitting material.

The far infrared emitting material may be applied to at least a portion of the outer surface of the case.

The light guide plate may further include a diffusion sheet disposed in a direction in which the light is output to diffuse the light, and the diffusion sheet may be formed by applying beads of a far infrared ray emitting material together with a binder to at least a portion of the base film. .

The light guide plate may further include a diffusion plate disposed in a direction in which the light is output to diffuse the light, and the diffusion plate may include beads of scattering material and / or beads of the far infrared ray emitting material in a transparent resin matrix. .

A reflection sheet disposed in a direction opposite to a direction in which the light of the light guide plate is output and reflecting the light, wherein the reflection sheet reflects the light including a bead of a far infrared ray emitting material on a base film; The material may be applied.

Another aspect of the present invention is to supply light, at least one light source disposed on a surface facing the direction in which the light is output on the printed circuit board; A diffuser plate configured to be spaced apart from each other in a direction in which the light is output with respect to the printed circuit board; And a case configured to receive and fix at least a portion of the light source and the diffusion plate therein, and further comprising a far infrared ray emitting material.

According to the LED lighting apparatus according to the present invention, it is possible to perform a far infrared ray emission function together with the lighting function, thereby providing a luminaire beneficial to the human body.

Hereinafter, with reference to the accompanying drawings will be described in more detail the LED lighting apparatus according to a preferred embodiment of the present invention.

1 schematically shows an edge lighted type light emitting diode (LED) illumination device 100 according to one preferred embodiment of the present invention. 2 to 4 illustrate the diffusion sheet 140, the diffusion plate 150, and the reflective sheet 160 in the LED lighting device 100 of FIG. 1, respectively.

Referring to the drawings, the LED lighting device 100 includes a far infrared ray emitting material in at least some of the respective components constituting it, so that not only the lighting function but also the far infrared rays beneficial to the human body are emitted from the LED lighting device 100. Thus, it has a beneficial function to the human body, such as promoting blood circulation of the human body to relieve physical fatigue of the human body.

In the LED lighting apparatus 100 shown in FIG. 1, the LED light source 120 is attached to the side of the light guide plate 110, and far-infrared rays are provided to the edge type LED lighting apparatus 100 to which light is supplied from the side of the light output direction. It relates to an embodiment in which the emitter is included.

To this end, the LED lighting device 100 is a light guide plate 110; Light source 120; Case 130; Diffusion sheet 140; Diffuser plate 150; Reflective sheet 160; Lower case 170; A printed circuit board 180; And a power supply device 190, wherein at least one of the components comprises a far infrared ray emitting material. In this case, the far infrared ray emitting material is preferably included in a portion exposed to the outside of the components constituting the LED lighting device (100).

The light guide plate 110 guides light generated by the light source 120. The light source 120 supplies light and is disposed at the side surface of the light guide plate 110. That is, the present embodiment is an edge type LED lighting device 100, the light source 120 is disposed on the side of the light guide plate 110. Therefore, the light incident through the side surface of the light guide plate 110 passes through the light guide plate 110, and the light is uniformly distributed in all areas in which the light is output.

At this time, the light source 120 is preferably an LED light source. The case 130 accommodates and fixes the components constituting the LED lighting device 100 including the light source 120 and the light guide plate 110 therein together with the lower case 170.

The diffusion sheet 140 is disposed in a direction in which the light of the light guide plate 110 is output to diffuse the light. The diffusion plate 150 is disposed in the direction in which the light of the light guide plate 110 is output to diffuse the light. In this embodiment, the diffusion sheet 140 is disposed between the diffusion plate 150 and the light guide plate 110. .

The reflective sheet 160 is disposed in a direction opposite to the direction in which the light of the light guide plate 110 is output, and reflects light in a direction opposite to the direction in which the light is output, so that the reflective sheet 160 may go in the direction in which the light is output.

The LED light source 120 is disposed on the printed circuit board 180. That is, the printed circuit board 180 extends along the side of the light guide plate 110, and a plurality of LED light sources 120 are disposed along the side of the light guide plate 110 on the surface of the printed circuit board 180 facing the light guide plate. Can be. The power supply device 190 supplies power to the control components and elements disposed on the printed circuit board 180 for controlling the LED light source 120 and the LED light source 120.

The far infrared emitters may be disposed in any of the components constituting the LED lighting device 100. However, it is preferable to be included in a portion exposed to the outside of the components constituting the LED lighting device 100 so that far infrared rays can be effectively emitted to the outside.

In one embodiment, the far infrared ray emitting material may be included in the case 130. Preferably, the far infrared emitter may be applied to at least a portion of the outer surface of the case 130. In this case, the far infrared ray emitting material may be surface-coated alone or together with other paint on the outer surface of the case 130.

The case 130 may be an aluminum (Al) profile for easy heat transfer. In this case, since the case 130 is disposed at the outermost portion of the LED lighting device 100, the far infrared rays emitted from the far infrared ray emitting material may effectively reach the user.

The case 130 has a center portion empty so that light can be output from the center portion, and the light guide plate 110 in a side of the light output direction together with the lower case 170 of the lower portion from the side portion; LED light source 120; And storing and fixing the printed circuit board 180, storing the diffusion sheet 140 and the diffusion plate 150 in the upper portion of the light guide plate 110 and the reflecting sheet 160 in the lower portion thereof in the direction in which light is output. Can be fixed

In this case, the power supply device 190 is connected to the printed circuit board 180 to supply power to the control parts and elements disposed on the LED light source 120 and the printed circuit board 180.

In another embodiment, the far infrared emitter may be included in the diffusion sheet 140 as shown in FIG. 2. Preferably, the far infrared ray emitting material may be applied to all or part of the surface of the diffusion sheet 140 facing the direction in which light is output. In this case, the diffusion sheet 140 may be formed by applying a bead 142 of a far infrared ray emitting material together with the binder 143 to at least a portion or the entire region of the base film 141.

The light guide panel 110 receives the light emitted from the LED light source 120 using a transparent polycarbonate or an acrylic panel, and covers the entire area of the screen through a pattern having a predetermined shape and area deposited on the acrylic surface. Evenly distribute the light.

The diffuser sheet 140 is positioned on the upper surface of the light guide plate 110 so as to scatter light exiting from the surface of the light guide plate 110 in a predetermined direction to spread evenly throughout the surface of the light guide plate 110.

In this case, the base film 141 may be poly ethylene terephthalate (PET) or poly carbonate (PC), and the diffusion sheet 140 may be a bead 142 of a far infrared ray emitting material in a transparent ink corresponding to the binder 143. The mixture may be formed by applying to all or part of one surface of the base film 141. A bead 142 of far-infrared emitting material is preferably applied to the surface facing away from the light guide plate 110 so that far-infrared radiation emitted from the far-infrared emitting material can be effectively released and reach the user.

In another embodiment, the far infrared emitter may be included in the diffuser plate 150 as shown in FIG. 3. The diffuser plate 150 may include a bead 152 of scattering material and / or a bead 153 of far infrared ray emitting material in the surface coating and / or inside the transparent resin matrix 151. In this case, the diffusion plate 150 may be formed by extrusion.

The transparent resin matrix 151 may be poly ethylene terephthalate (PET) or poly carbonate (PC) or poly methyl methacrylate (PMMA), or glass, and the like. The beads 152 of the scattering material may be acrylic or glass (SiO _2). ) Can be a series.

In another embodiment, the far infrared emitter may be included in the reflective sheet 160 as shown in FIG. 4. Preferably, the far infrared ray emitting material may be applied to all or a portion of the surface of the reflective sheet 160 facing the light output direction. In this case, the reflective sheet 160 may be formed by applying a reflective material 163 reflecting light including a bead 162 of a far infrared ray emitting material to the base film 161.

In this case, the base film 161 may be poly ethylene terephthalate (PET) or poly carbonate (PC), and the reflective material may be calcium sulfate (CaSO ₄ ) or calcium carbonate (CaCO ₄ ). The beads 162 of the far infrared emitting material are preferably applied to the outward facing side so that the far infrared rays emitted from the far infrared emitting material can be effectively released and reach the user.

The far infrared ray emitting material applied to the LED lighting device 100 is preferably a material that emits far infrared rays at room temperature. However, the present invention is not limited thereto, and a material emitting far infrared rays may be used when the temperature rises above a certain threshold by the LED light source 120 or other external factors.

In the present embodiment, the far infrared ray emitting material may emit far infrared rays in the wavelength range of 4 to 20 μm. In addition, the far-infrared emission material included in components such as the case 130, the diffusion sheet 140, the diffusion plate 150, and the reflection sheet 160 may have a particle diameter of 3 to 100 μm. Such particles of far-infrared emitting material may be included in any component in which particles of a similar size may be used among the components constituting the LED lighting device 100.

5 is a schematic view of a direct lighted type LED (Light Emitting Diode) lighting apparatus 200 according to an exemplary embodiment of the present invention.

Referring to the drawings, the LED lighting device 200 includes a far infrared ray emitting material in at least some of the respective components constituting the same, so that not only the lighting function but also the far infrared rays which are beneficial to the human body are emitted from the LED lighting device 200. In addition, it has a beneficial function to the human body by promoting blood circulation of the human body and relieving physical fatigue of the human body.

In the LED lighting apparatus 200 shown in FIG. 5, the LED light source 120 is attached directly under the light output direction, and the far-infrared emitting material is included in the direct type LED lighting apparatus 200 to supply the light. It relates to an embodiment. Like reference numerals are used to refer to the same elements as in the embodiment illustrated in FIG. 1, and detailed description thereof will be omitted.

LED lighting device 200 is a transparent plate 210; LED light source 220; Case 230; Diffusion sheet 240; Diffuser plate 250; Reflective sheet 260; Lower case 270; A printed circuit board 280; And a power supply (not shown). In this case, at least one of the components may include a far infrared ray emitting material. In addition, the far infrared ray emitting material is preferably included in a portion exposed to the outside of the components constituting the LED lighting device (200).

The LED light source 220 supplies light, and may be disposed on a surface of the printed circuit board 280 facing the light output direction. In this embodiment, the LED light source 220 may be used as a light source, but the present invention is not limited thereto and various kinds of light sources may be used. In addition, at least one or more LED light sources 220 may be disposed on the printed circuit board 280.

In one embodiment, a far infrared ray emitting material may be applied to at least a portion of the outer surface of the case 230.

The case 230 accommodates and fixes the components constituting the LED lighting device 200 including the LED light source 220 and the transparent plate 210 therein together with the lower case 270. The case 230 may be empty at the center to output light from the center, and may fix the transparent plate 210, the printed circuit board 280, the diffusion sheet 240, and the diffusion plate 250 at the side. . The LED light source 220 may be mounted on one side or both sides of the printed circuit board 280 in the direction in which the light is output, and the reflective sheet 260 may be attached.

The diffusion plate 250 is spaced apart from the printed circuit board 280 in the direction in which light is output to diffuse the light. In this case, as shown in FIG. 3, the diffusion plate 250 may include a bead 152 of scattering material and / or a bead 153 of far infrared ray emitting material in the transparent resin matrix 151.

The diffusion sheet 240 is disposed on one surface of the diffusion plate to diffuse the light. As shown in FIG. 2, the diffusion sheet 240 may bead 142 of a far infrared ray emitting material to at least a portion of the base film 141. ) May be applied together with the binder 143.

The reflective sheet 260 is disposed on the surface of the printed circuit board 280 in the direction in which the light is output to reflect the light. As illustrated in FIG. 4, the reflective sheet 260 may be formed by applying a reflective material 163 reflecting light including a bead 162 of a far infrared ray emitting material to the base film 161.

The transparent plate 210 is spaced apart from the printed circuit board 280 in the direction in which light is output and transmits light. In the present exemplary embodiment, the LED light source 220 and the reflective sheet 260 are disposed on the surface of the printed circuit board 280 in the direction in which the light is output, and the transparent plate 210 is spaced apart from the printed circuit board 280 by a predetermined interval. The diffusion sheet 240 and the diffusion plate 250 may be disposed in this order.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it is merely an example, and those skilled in the art may realize various modifications and equivalent other embodiments therefrom. I can understand. Accordingly, the true scope of protection of the invention should be defined only by the appended claims.

1 is a view schematically showing an example of an edge lighted type LED (Light Emitting Diode) lighting apparatus as a preferred embodiment according to the present invention.

FIG. 2 is a view schematically showing a diffusion sheet in the LED lighting apparatus of FIG. 1.

3 is a view schematically showing a diffusion plate in the LED lighting apparatus of FIG.

4 is a view schematically showing a reflective sheet in the LED lighting apparatus of FIG.

5 is a view schematically showing an example of a direct lighted type LED (Light Emitting Diode) lighting apparatus as another preferred embodiment according to the present invention.

<Description of the symbols for the main parts of the drawings>

100, 200: LED lighting device, 110: LGP

210: transparent plate, 120, 220: light source,

130, 230: case, 140, 240: diffusion sheet,

150, 250: diffuser plate, 160, 260: reflective sheet.

Claims (20)

A light guide plate for guiding light; A light source for supplying the light and disposed on a side surface of the light guide plate; And A case configured to receive and fix at least a portion of the light source and the light guide plate therein; LED lighting device further comprising a far infrared ray emitting material. The method of claim 1, LED illumination device wherein the far infrared ray emitting material is applied to at least a portion of the outer surface of the case. The method of claim 1, The light guide plate further includes a diffusion sheet disposed in a direction in which the light is output and diffuses the light, wherein the diffusion sheet is a bead of a far-infrared ray emitting material is coated with a binder on at least a portion of the base film Device. The method of claim 1, LED lighting further comprises a diffusion plate disposed in the direction of the light output of the light guide plate to diffuse the light, the diffusion plate comprises a bead of scattering material and / or beads of the far infrared ray emitting material in a transparent resin matrix Device. The method of claim 1, A diffusion sheet disposed in a direction in which the light of the light guide plate is output to diffuse the light; And a diffuser plate disposed in a direction in which the light of the diffusion sheet is output, to diffuse the light. LED diffuser comprising the far infrared ray emitting material in the diffusion sheet and / or the diffusion plate. The method of claim 1, A reflection sheet disposed in a direction opposite to a direction in which the light of the light guide plate is output and reflecting the light, wherein the reflection sheet reflects the light including a bead of a far infrared ray emitting material on a base film; LED lighting device is applied to the material. The method of claim 6, LED reflector comprising a reflective material calcium sulfate (CaSO ₄ ) or calcium carbonate (CaCO ₄ ). The method of claim 6, And a lower case coupled to the case in a direction opposite to the direction in which the light of the reflective sheet is output. The method according to any one of claims 1 to 8, LED illumination device for the far infrared ray emitting material emits far infrared rays in the wavelength range of 4 ~ 20㎛. The method according to any one of claims 1 to 8, LED illumination device having a particle diameter of 3 ~ 100㎛ particle of the far infrared ray emitting material. The method according to any one of claims 1 to 8, LED lighting device that the far infrared ray emitting material emits far infrared rays at room temperature. At least one light source disposed on a surface of the printed circuit board to face the light output direction on the printed circuit board; A diffuser plate configured to be spaced apart from each other in a direction in which the light is output with respect to the printed circuit board; And A case for accommodating and fixing at least a portion of the light source and the diffusion plate therein; LED lighting device further comprising a far infrared ray emitting material. The method of claim 12, LED illumination device wherein the far infrared ray emitting material is applied to at least a portion of the outer surface of the case. The method of claim 12, And the diffuser plate comprises beads of scattering material and / or beads of the far infrared emitting material in a transparent resin matrix. The method of claim 12, And a diffusion sheet disposed on one surface of the diffusion plate to diffuse the light, wherein the diffusion sheet is coated with a binder of a far infrared ray emitting material on at least a portion of the base film together with a binder. The method of claim 15, The LED lighting device further comprises a transparent plate which is disposed to be spaced apart in the direction in which the light is output with respect to the printed circuit board. The method of claim 12, A reflection sheet disposed on a surface of the printed circuit board in a direction in which the light is output and reflecting the light, wherein the reflection sheet reflects the light including a bead of a far infrared ray emitting material on a base film; LED lighting device is a reflection material is applied. The method according to any one of claims 12 to 17, LED illumination device for the far infrared ray emitting material emits far infrared rays in the wavelength range of 4 ~ 20㎛. The method according to any one of claims 12 to 17, LED illumination device having a particle diameter of 3 ~ 100㎛ particle of the far infrared ray emitting material. The method according to any one of claims 12 to 17, LED lighting device that the far infrared ray emitting material emits far infrared rays at room temperature.

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