KR20110008116A - Decoration tile based on optical fiber and led - Google Patents

Abstract

PURPOSE: A decoration tile based on optical fiber and LEDs is provided to reduce power consumption and maintenance costs by displaying various colors and light. CONSTITUTION: A decoration tile based on optical fiber and LEDs comprises a tile(110) a rectangular frame, a light source device, and a cover. The tile is formed in a rectangular plate shape and has multiple through holes(111). The frame is fixed to the edge of the rear surface o the tile. The light source device is formed inside the frame and has a power input unit, an LED controller, a color controller, an LED luminous unit, a reflector, an optical fiber bundle, and a heat radiating plate.

Description

Decoration tile based on optical fiber and LED

The present invention relates to an optical fiber and a light emitting diode based decorative tile.

The optical fiber is an optical fiber in which a high refractive index glass is used at the center and a low refractive index glass is used at the center to allow total reflection of light passing through the central glass.

Total reflection refers to the phenomenon that when light travels from the optically dense medium to the slight medium, the incident light toward the small medium is reflected 100% without refracting at an angle of incidence greater than a certain critical angle. It is to reduce the loss rate when transmitting.

Such optical fibers are made of synthetic resin, but are mainly made of glass having good transparency. The structure has a double cylindrical shape that usually surrounds a central core with a cladding around it.

The outer surface is coated with synthetic resin one or two times to protect it from impact. The total size excluding the protective coating is 100 ~ 100 micrometers in diameter (1㎛ is 1 / 1000mm), and the refractive index of the core part is higher than the refractive index of the cladding, so that light can be focused on the core part and proceed without going out. It is.

Optical fibers having such a structure are widely used in electrical, electronic, communication, medical, and optical fields because of many advantages. Recently, optical fibers have a property of allowing light to be conducted from one end to the other in the longitudinal direction. The use range has been extended to various decorative uses.

In order to use the optical fiber for decoration as described above, there must be a light source device for emitting light, and the optical fiber is connected to the light source device so that light emitted from the light source device can be conducted from one end of the optical fiber to the other end. In addition, there is a need for an additional configuration for converting colors to implement various colors of light.

Referring to the light source device using the conventional optical fiber, as shown in FIG. 1, the lamp 1 emits only one color of light in one direction, and the color sticker of various colors rotates around the lamp 1. (2a) is attached, the color filter (2) for converting the monochromatic light emitted from the lamp (1) into light of various colors, the rotary motor (3) for rotating the color filter (2), and the lamp (1) And a case 4 accommodating the color filter 2 and the rotary motor 3, and an optical fiber bundle 5 connected to the case 4 to emit light of a specific color passing through the color filter 2 to the outside 5. It consists of

However, since the conventional light source device can emit light of various colors only when they are connected to each other, a rotating motor, a lamp, and a color filter are essential, and the volume of the case for accommodating them is enlarged, and a lot of power is generated. There is a problem that it is necessary, and generates heat so that it cannot be applied to decorative tiles for the interior.

The present invention has a problem to solve the above problems.

According to the present invention, a tile having a plate shape and having a plurality of through holes having a predetermined pattern, a frame fixedly installed along the edge of the tile on the back of the tile, a light source device built into the frame, and the frame A decorative tile comprising a cover detachably mounted, the light source device comprising: a power input unit; An LED controller and a color controller connected to the power input unit; An LED light emitting unit connected to the power input unit, the LED controller, and the color controller, the thin film type white LED mounted at the center of the printed circuit board connected to a printed circuit board, an electrical contact existing at the center of the printed circuit board, and Two PCBs mounted at intervals of 90 degrees from the center of the printed circuit board are spaced apart from each other in the radially outward direction and connected to four electrical contacts that are spaced 90 degrees apart from the center of the printed circuit board. The LED light emitting unit including a thin film green LED, a thin film red LED, and a thin film blue LED; Mounted on the printed circuit board in the standing state so that the five LEDs are inserted into the lower side, a mounting portion for mounting and fixed on the upper surface of the printed circuit board, a focusing tube integrally connected to the mounting portion, and the focusing tube A reflector including a downwardly inclined mirror surface and an upwardly inclined mirror surface formed by a nozzle-shaped shaft diameter portion having a smaller cross-sectional area at a lower inner peripheral surface thereof; And a tubular socket which is fitted to the focusing tube of the reflector and is seated on the seat portion just above the shaft diameter portion formed on the inner circumferential surface of the focusing tube, and a plurality of penetrations having one end fixedly inserted into the socket and the other end formed on the tile. The above problems can be solved by a decorative tile including an optical fiber bundle including a plurality of optical fibers respectively inserted and fixed in the holes.

The present invention configured as described above makes it possible to implement the light source device to a small size, to apply the light source device to the decorative tile.

In addition, the present invention has the advantage that by reducing the power consumption by reducing the power consumption by producing a variety of colors by mixing the three primary colors emitted from the red LED, green LED and blue LED.

In addition, by providing a mirror surface to the reflector, each primary color light emitted from the LED is mixed with the mirror surface has the advantage that can produce a variety of colors and dark colors of light.

Hereinafter, the decorative tile of the present embodiment will be described with reference to FIGS. 2 to 6.

3, the decorative tile of this embodiment is indicated by the reference numeral 100.

As shown in FIG. 2, the decorative tile 100 has a rectangular plate shape and has a plurality of through-holes 111 having a predetermined pattern, as shown in FIG. 3. A rectangular frame 120 fixedly installed along the edge of the tile 110 on the back of the tile 110, the light source device 130 built in the frame 120, and removable to the frame 120. It includes a cover 140 is mounted.

As shown in FIG. 3, the light source device 130 includes a power input unit 10, an LED controller 21 and a color controller 20, an LED light emitter 40, a reflector 50, and an optical fiber bundle 60. ), And a heat sink 70.

The power input unit 10 receives power from the outside to supply power to the LED controller 21, the color controller 20, and the LED light emitting unit 40.

The LED controller 21 and the color controller 20 are electrically connected to the power input unit 10 to receive power from the power input unit 10. The LED controller 21 is to selectively turn on / off the LED, the color controller 20 has a program for varying the color or divergence form of light that can be emitted through the optical fiber bundle 60 Is input in advance. For example, only one LED emits light so that only monochromatic light is emitted to the outside through the fiber bundle 60, or monochromatic light of one color flashes at a predetermined time interval, or is emitted from at least two LEDs and mixed. Light flows from left to right or from right to left, or the light of a specific color mixed by diverging from two or three LEDs flows to the left or to the right, or the whole optical fiber bundle 60 is left to right as a unit Various modes, such as changing the color of light from right to right, left to right, left to right or right to left, or varying colors of light from left to right or right to left The expression form of the light is input to the LED and color controller 20 in advance.

The LED light emitting unit 40, as shown in Figure 4, the printed circuit board 41; A thin film type white LED 42 connected to an electrical contact existing at the center of the printed circuit board 41 and mounted at the center of the printed circuit board; In addition, the printed circuit board 41 is connected to four electrical contacts that are spaced apart in a radially outward direction from the center of the printed circuit board 41 and is spaced apart from the radially outward direction in the center of the printed circuit board by a distance of 90 degrees. Two thin-film green LEDs 43, one thin-film red LEDs 44, and one thin-film blue LEDs 45 are mounted. Here, the two thin-film green LEDs 43 are disposed with a 180 degree difference phase, and one thin-film red LED 44 and one thin-film blue LED 45 are disposed with a 180 degree phase difference.

On the bottom surface of the printed circuit board of the LED light emitting unit 40, as shown in FIG. The heat sink 70 is detachably mounted to the rectangular frame 120.

The reflector 50 is mounted in the standing state on the printed circuit board 41 so that the five LEDs 42 to 45 of the LED light emitting unit 40 are inserted below.

As shown in FIGS. 4 and 6, the reflector 50 includes a seating part 51 to be mounted and fixed on an upper surface of the printed circuit board 41 and a focusing tube integrally connected to the seating part 51. And a shaft diameter portion 53 formed on the lower inner circumferential surface of the focusing tube 52.

The shaft diameter portion 53 has a nozzle shape in which the cross-sectional area is smaller and wider, and includes a mirror surface 53a inclined downward and a mirror surface 53b inclined upward.

The seating part 51 surrounds five LEDs 42 to 45 of the LED light emitting part 40. Therefore, the LEDs disposed on the printed circuit board 41 are located inside the seating part 51.

The focusing tube 52 extends vertically upward from an inner circumferential surface of the seating portion 51 in a cylindrical shape having an upper and lower end open. Therefore, when the reflector 50 is installed, the focusing pipe 52 has its lower end closed by the LED light emitting part 40 and the seating part 51 and the upper end is opened.

Monochromatic light emitted from each of the LEDs disposed in the LED light emitting part 40 is collected by colliding with the downwardly inclined mirror surface 53a of the shaft diameter part 53, whereby the density of color is increased, so that the concentration of the focusing pipe 52 is increased. Go straight towards the open top. In addition, the monochromatic light traveling straight toward the open upper end of the focusing tube 52 is reflected by the upwardly inclined mirror surface 53b toward one end of the plurality of optical fibers 62, thereby reducing the loss of light, and thus the optical fiber bundle 60. To transmit light to a variety of colors (e.g., red, blue, green, mixed colors of red and green, mixed colors of green and blue, mixed colors of red and blue, and these colors Mixed colors).

The optical fiber bundle 60 is inserted into the reflector 50 and serves to divert guided light to the outside.

As shown in FIGS. 3 and 4, the optical fiber bundle 60 includes a tubular socket 61 and a plurality of ends in which one end is fixedly inserted into the socket 61 and the other end is formed in the tile 110. It includes a plurality of optical fibers 62 and the shrinkage tube 64 is inserted into the through hole 111 and fixed respectively.

Here, the other end of the plurality of optical fibers 62 is fixed to the plurality of through holes 111 formed in the tile 110 in a state where the adhesive is interposed in the through holes 111 of the tile 110. The other end of the optical fiber 62 is penetrated through the through hole 111 of the tile 110 to protrude from the surface of the tile 111, the other end of the optical fiber 61 is glued to the through hole 111 After fixing by hardening, the other end of the protruding optical fiber 62 is cut so that the exposed surface of the other end of the optical fiber 62 is in the same plane as the surface of the tile 110, that is, the tile 110. After positioning at the same level as the surface level of the surface of the optical fiber 62, the cutting (exposure) surface of the other end of the optical fiber 62 is scratched so that the cut surface has an irregular surface, coming out from one end of the optical fiber 62 Light is diffusely reflected, so at a viewing angle of 90 to 110 degrees A way that the light emitted from the optical fiber 62 to enable visible.

The socket 61 is fitted to the focusing tube 52 of the reflector 50 to form an outer circumferential diameter equal to or slightly smaller than the inner circumferential surface diameter of the focusing tube 52, thereby stably securing the socket in the focusing tube 52. To be inserted. Of course, by forming a helix on the outer circumferential surface of the socket 61 and forming a helix on the inner circumferential surface of the focusing tube 52 to be engaged with each other to rotate so that the socket 61 can maintain its position from the focusing tube 52 stably. It is also possible.

The shrinkage tube 64 is installed between the socket 61 and the optical fiber 62, and arranged to densely arrange the plurality of optical fibers 62 in a circular manner, and to press the outer peripheral surface strongly to maintain the circular shape. Will be. The means for retaining the circular shape is not merely completed by arranging the shrink tube 64 between the socket 61 and the optical fiber 62, but also includes an adhesive between the optical fiber 62 and the shrink tube 64 and the socket. An adhesive is also applied between the 61 and the shrink tube 64 to prevent the optical fiber from being separated from the socket 61 while maintaining the arrangement of the optical fiber 62.

Then, after the adhesive is hardened while firmly shrinking the plurality of optical fibers 62 by using the shrink tube 64, the socket 61 is used to accurately seat the cross section of the optical fiber at an optimal position of the reflector where color light is mixed. ), The surface in contact with the light source is polished to transmit light accurately through the optical fiber while reducing the loss of the mixed light, and then the socket is bonded with an adhesive, and then to the focusing tube 52 of the reflector 50 When pushed in, it seats on the sheet | seat part 54 of the focusing pipe 52 of the reflector 50. As shown in FIG.

The seat portion 54 is positioned directly on the shaft diameter portion 53 formed on the inner circumferential surface of the focusing tube 52 and has a size and shape in which the socket 61 can be seated. One end of the plurality of optical fibers 62 inserted and fixed to the seated socket 61 is immediately adjacent to the upwardly inclined mirror surface 53b of the shaft diameter portion 53, so that the open upper end of the focusing tube 52 is opened. Monochromatic light or mixed light, which has been directed straight toward the light, is reflected toward one end of the plurality of optical fibers 62 to transmit light to the optical fiber bundle 60 while reducing the loss of light, thereby maintaining the clarity and diverging from the LED light emitting part 40. This makes it possible to express various colors of light much more clearly than before and to lower the spread of light.

  The plurality of optical fibers 62 emits the light emitted from the LED light emitting part 40 out of the tile 111 through the plurality of through holes 111 formed in the tile 110 using the total reflection principle. Represents a shape of a predetermined pattern made by a plurality of through holes 111, and creates a variety of colors to the shape under the control of the LED controller 21 and the color controller 20.

In the description of the above embodiment, the shape of the frame and the tile is described as a rectangle, but the shape may be various arcuate and polygonal shapes from the interior point of view.

In addition, in the description of the embodiment, one LED controller 21 and color controller 20, one LED light emitting unit 40, one reflector 50, one optical fiber bundle 60, and one heat sink It is described that the decorative tile includes 70, but when the tile is large, as shown in Figs. 5A and 5B, one LED controller 21 and a plurality of color controllers 20, a plurality of An LED light emitting part (not shown), a plurality of reflectors 50, a plurality of optical fiber bundles 60, and a plurality of heat sinks (not shown) may be included.

In addition, in the description of the above embodiment, the reason for using the LED controller 21 and the color controller 20 as separate components is that when the modules are modularized on one substrate, if any one of them occurs, the modular substrate is used. This is because the whole must be replaced, but if these are separate parts, if any one of them is abnormal, only the defective part needs to be replaced.

1 is a view showing a light source device using a conventional optical fiber,

2 is a front view of the decorative tile of the present embodiment,

3 is a rear view of FIG. 2;

4 is a perspective view showing the LED light emitting unit and the reflector and the optical fiber bundle provided in the decorative tile of FIG.

5 is a conceptual diagram of a decorative tile of a separate embodiment, and

6 is a cross-sectional view of the reflector.

Claims (5)

Tile 110 having a plurality of through-holes 111 having a plate shape and a predetermined pattern, frame 120 fixedly installed along the edge of the tile 110 on the back of the tile 110, In the decorative tile comprising a light source device 130 embedded in the frame 120, and a cover 140 detachably mounted to the frame 120, The light source device 130, A power input unit 10; An LED controller 21 and a color controller 20 connected to the power input unit 10; An LED light emitting unit connected to the power input unit 10, the LED controller 21, and the color controller 20, and connected to a printed circuit board 41 and an electrical contact in the center of the printed circuit board 41. Thin film-type white LEDs 42 mounted at the center of the printed circuit board and four electrical contacts spaced apart from each other in the radially outward direction at the center of the printed circuit board 41 at intervals of 90 degrees to be connected to the printed circuit board. It includes two thin-film green LEDs (43), one thin-film red LEDs (44), and one thin-film blue LEDs (45) mounted at intervals of 90 degrees from the center of the circuit board in a radially outward direction. The LED light emitting unit 40; The five LEDs 42 to 45 are mounted in the standing state on the printed circuit board 41 so as to be inserted into the lower side, and a mounting portion 51 for mounting and fixing on the upper surface of the printed circuit board 41. , Inclined downward by a focusing tube 52 integrally connected to the seating portion 51 and a nozzle-shaped shaft portion 53 having a smaller cross-sectional area on the lower inner circumferential surface of the focusing tube 52 and being wider; A reflector 50 including a mirror surface 53a and a mirror surface 53b inclined upwardly; And A tubular socket 61 fitted into the focusing pipe 52 of the reflector 50 and seated on the seat 54 just above the shaft diameter 53 formed on the inner circumferential surface of the focusing pipe 52; One end is fixedly inserted into the socket 61 and the other end includes an optical fiber bundle 60 including a plurality of optical fibers 62 are inserted and fixed to the plurality of through holes 111 formed in the tile 110, respectively. Fiber and light-emitting diode-based decorative tiles, characterized in that. The method of claim 1, The bottom surface of the printed circuit board 41 of the LED light emitting unit 40 is mounted with a heat dissipation plate 70 in which a plurality of heat dissipation fins protrude in the same direction in the downward direction, The heat sink 70 is optical fiber and light emitting diode-based decorative tile, characterized in that detachably mounted to the frame (120). The method of claim 1, The two thin-film green LEDs 43 are disposed with a 180 degree difference phase, and one thin-film red LED 44 and one thin-film blue LED 45 are disposed with a 180 degree phase difference. Fiber and light emitting diode based decorative tiles. The method of claim 1, The optical fiber bundle 60 further includes a shrink tube 64, An adhesive is applied between the optical fiber 62 and the shrink tube 64, and an adhesive is also applied between the socket 61 and the shrink tube 64, and the surface of the optical fiber 62 in contact with the light source loses light. Fiber-optic and light-emitting diode-based decorative tiles, characterized in that the polished to accurately transmit light through the optical fiber while reducing. The method of claim 1, The exposed surface of the other end of each of the plurality of optical fibers 62 inserted into and fixed to the plurality of through holes 111 formed in the tile 110 is positioned at the same level as the surface level of the tile 110. The exposed surface of the other end of (62) has an irregular surface by scratching processing, characterized in that the optical fiber and the light emitting diode-based decorative tile.

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