KR20100121249A - Lighting device - Google Patents

Abstract

PURPOSE: A lighting device is provided to show the light of various patterns and colors by controlling the lighting components with configuration of red, green, and blue lightings. CONSTITUTION: A first light guide plate(100) forms a through hole(101). A first light emitting device(200) irradiates the light to the first light guide plate. A second light guide plate(110) is located inside the through hole. A second emitting device(300) irradiates the light to the second light guide plate. A light-blocking region(400) shields the light transmitted to the first light guide plate.

Description

Lighting device {Lighting device}

The present invention relates to a lighting device capable of pattern illumination.

The lighting industry has a long history of development with human civilization and is closely related to humanity.

In recent years, the lighting industry has been continuously developed, and researches on light sources, light emitting methods, driving methods, and efficiency improvements have been conducted in various ways.

In general, incandescent lamps, discharge lamps, fluorescent lamps are mainly used as lighting sources, and are used for various purposes such as home, landscape, and industrial purposes.

Resistive light sources, such as incandescent bulbs, have low efficiency and high heat generation problems, and discharge lamps have high price and high voltage problems.

In order to solve the shortcomings of such light sources, interest in light emitting diode lighting has many advantages such as efficiency, color diversity, and autonomy of design.

In particular, there is an increasing demand for surface light sources having uniform optical characteristics compared to point / line light sources.

The present invention solves the problem of enabling pattern illumination and realizing flat illumination.

According to a first preferred embodiment of the present invention,

A first light guide plate having a through hole formed therein;

First light emitting devices emitting light to the first light guide plate;

A second light guide plate positioned inside the through hole;

There is provided a lighting device configured to include second light emitting elements for emitting light to the second light guide plate.

According to a second preferred embodiment of the present invention,

A first light guide plate having a through hole formed therein;

First light emitting devices emitting light to the first light guide plate;

A first reflector formed on the first light guide plate;

A second light guide plate positioned inside the through hole;

Second light emitting devices emitting light to the second light guide plate;

A second reflector formed on the second light guide plate;

A third light guide plate laminated on the second light guide plate;

Third light emitting devices emitting light to the third light guide plate;

A lighting apparatus is provided that includes a light blocking unit positioned on an inner wall of the through hole and blocking light transmitted from the second and third light guide plates inside the through hole to the first light guide plate.

The present invention forms a through hole in the light guide plate, and implements a lighting device to position the light source inside the through hole, so that the light emitted from the light source is emitted to the outside through the surface of the light guide plate having a larger area than the light source, Since a light source with a small area can be used as a large surface light source, it can be used as an indoor light.

In addition, the present invention has the effect that the light emitted from the light emitting elements located in the through hole of the light guide plate is transmitted to the light guide plate of the pattern shape located inside the through hole to illuminate the pattern-shaped light.

In addition, the present invention consists of a light emitting element located in the through hole of the light guide plate of the red light emitting element, green light emitting element and blue light emitting element, by controlling the lighting of each light emitting element, it is possible to produce a variety of patterns and colors There is a possible effect.

In addition, the present invention has the effect that can produce the illumination in the mode of flat lighting, pattern lighting and spot lighting in one lighting device.

In addition, the present invention may apply a light source to the light emitting diodes to emit light of a specific color in the lighting device, and the brightness may be adjusted.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a schematic cross-sectional view of a lighting apparatus according to a first embodiment of the present invention. First, the lighting apparatus according to the present invention includes a first light guide plate 100 having a through hole 101; First light emitting devices (200) for emitting light to the first light guide plate (100); A second light guide plate 110 positioned in the through hole 101; And second light emitting devices 300 that emit light to the second light guide plate 110.

In this case, the light blocking unit 400 is disposed on the inner wall of the through hole 101 to block light transmitted from the second light guide plate 110 inside the through hole 101 to the first light guide plate 100. ) Is further provided.

In addition, the first LGP 100 and the second LGP 110 may be attached to the reflective plate 500.

That is, the light transmitted to each of the first LGP 100 and the second LGP 110 is reflected by the reflecting plate 500, so that the light guide plate 100 and the second LGP 110 face in one direction. Is released.

In addition, the first light emitting devices 200 are positioned on an outer surface of the first light guide plate 100.

Therefore, in the lighting apparatus according to the present invention, the light emitted from the first light emitting elements 200 is transmitted to the first LGP 100 so that the light is emitted from the surface of the first LGP 100 to the outside. 'A' of FIG. 1 is emitted and can be used as an indoor lamp.

That is, the present invention forms a through hole in the light guide plate, and implements a lighting device to position the light source inside the through hole, thereby emitting light emitted from the light source to the outside through the surface of the light guide plate having a larger area than the light source. As a result, the light source having a small area can be used as a large surface light source, and thus there is an advantage that it can be utilized as an indoor lamp.

In addition, the light emitted from the second light emitting devices 300 positioned inside the through hole 101 is transferred to the second light guide plate 110 to be external from the surface of the second light guide plate 110. The furnace light ('B' in FIG. 1) is emitted to implement special lighting.

In the first embodiment of the lighting apparatus of the present invention, as shown in FIG. 1, the second light guide plate 100 is formed in a pattern shape.

Accordingly, in the lighting apparatus of the first embodiment, the light emitted from the surface of the second light guide plate 100 becomes a pattern shape, and thus, the user side can detect the patterned light, thereby having an aesthetic sensitivity. .

FIG. 2 is a schematic plan view of a lighting apparatus according to a first embodiment of the present invention, in which a through hole 101 is formed inside the first light guide plate 100, and light is provided on an inner wall of the through hole 101. The blocking unit 400 is formed, and the second light guide plate 110 and the second light emitting devices 300 are positioned in the through hole 101.

In addition, first light emitting devices 200 are arranged on an outer surface of the first LGP 100.

Here, the first light emitting devices 200 may be mounted on a supporting part, which is not shown in FIG. 2, and the second light emitting devices 300 may be disposed on the light blocking unit 400 and the reflecting plate to which electrode lines are wired. It can be glued and fixed.

In addition, the second light guide plate 110 is formed in a predetermined pattern shape, and the light emitted from the second light guide plate 110 becomes light having a pattern shape as it is in the pattern shape of the second light guide plate 110.

That is, when the pattern shape of the second light guide plate 110 is a heart-shaped pattern as shown in FIG. 2, light having a heart shape is illuminated in the second light guide plate 110.

Here, it is preferable that the said pattern shape contains at least 1 or more recessed part in the side surface.

That is, when the pattern shape is a star shape, five concave parts are formed. When the pattern shape is a heart shape, one concave part is one.

FIG. 3 is a schematic cross-sectional view of a lighting apparatus according to a second embodiment of the present invention, wherein the lighting apparatus according to the second embodiment of the present invention has a third light guide plate 110 positioned inside the through hole 101. The light guide plate 120 is laminated and installed.

In addition, third light emitting devices 310 that transmit light to the third light guide plate 120 are also provided in the through hole 101.

In the lighting apparatus according to the second embodiment of the present invention, since the second LGP 110 has a pattern shape, the lighting device may illuminate pattern light, and the third LGP 120 may include the third LEDs 310. It can illuminate the light emitted from it.

In this case, when the second light emitting devices 300 and the third light emitting devices 310 that transmit light to the second light guide plate 110 are formed of a red light emitting device, a green light emitting device, and a blue light emitting device, When the lighting of each of the second light emitting devices 300 and the third light emitting devices 310 is controlled, lighting of various patterns and colors can be produced.

That is, when the power is turned on only the green light emitting devices, green light is emitted from the green light emitting devices, and the lighting device emits green light to the outside.

Similarly, when the red light emitting device or the blue light emitting device is driven, the red light or the blue light can be illuminated.

When the red light emitting devices and the green light emitting devices are driven, yellow light may be emitted. When the blue light emitting devices and the green light emitting devices are driven, cyan light may be emitted. When the devices and the red light emitting devices are driven, magenta light may be emitted.

In addition, in some cases, if the number of driven light emitting elements is adjusted, the brightness of the lighting apparatus may be adjusted.

4 is a schematic cross-sectional view for describing a first mode in which a lighting apparatus according to a second embodiment of the present invention is driven, and the lighting apparatus according to the second embodiment of the present invention may produce lighting in three modes. .

First, in the first mode, as shown in FIG. 4, the second and third light emitting devices 300 and 310 are turned off and the first light emitting devices 200 are turned on. Light emitted from the light emitting devices 200 is transmitted to the first LGP 100, and light A is emitted from the surface exposed to the outside of the first LGP 100 to perform general flat illumination. .

In the second mode, as shown in FIG. 5, the first and third light emitting devices 200 and 310 are turned off and the second light emitting devices 300 are turned on.

Therefore, the light emitted from the second light emitting devices 300 is transmitted to the patterned second light guide plate 110 to illuminate the patterned light B to the outside of the lighting device.

In addition, as shown in FIG. 6, in the third mode, the first and second light emitting devices 200 and 300 are turned off and the third light emitting devices 310 are turned on. The light emitted from the third light emitting devices 310 is transmitted to the third LGP 120, so that light C may be emitted from the third LGP 120 having a smaller area than that of the first LGP 100. It is a mode that enables spot lighting by emitting light.

In the lighting apparatus according to the second exemplary embodiment of the present invention, as shown in FIG. 7, the positions of the second and third LGPs 110 and 120 may be changed to form a stacked structure.

As such, the present invention has the advantage that the lighting can be produced in the mode of flat light, pattern light and small spot light in one lighting device.

FIG. 8 is a schematic cross-sectional view illustrating a state in which a diffusion sheet is installed in a lighting apparatus according to the present invention, and a diffusion sheet 600 for diffusing light may be attached to the first light guide plate 100 of the lighting apparatus according to the present invention. have.

Here, the diffusion sheet 600 is attached only to the first light guide plate 100, and the diffusion sheet 600 should not be installed in the third light guide plate 130 positioned inside the through hole 101.

That is, since the diffusion sheet 600 is for diffusing light, the second light guide plate 110 having a pattern shape is located inside the through hole 101, and thus, the diffusion sheet 600 is installed in the third light guide plate 130. If it is, the pattern shape light cannot be realized.

9 is a schematic cross-sectional view of a lighting apparatus according to a third embodiment of the present invention, wherein the lighting apparatus according to the third embodiment of the present invention includes a first light guide plate 100 having a through hole 101; First light emitting devices (200) for emitting light to the first light guide plate (100); A first reflector plate 510 formed on the first light guide plate 100; A second light guide plate 110 positioned in the through hole 101; Second light emitting devices (300) for emitting light to the second light guide plate (110); A second reflector 520 formed on the second light guide plate 110; A third light guide plate 120 stacked on the second light guide plate 110; Third light emitting devices 310 emitting light to the third light guide plate 120; The light blocking unit 400 is disposed on the inner wall of the through hole 101 to block light transmitted from the second and third light guide plates 110 and 120 in the through hole 101 to the first light guide plate 100. It is configured to include).

Here, the second light guide plate 520 is preferably formed in a pattern shape.

That is, through holes are formed in the first LGP 100 and the reflecting plate 500, and the through holes communicate with each other, and the inner wall of the through hole blocks light transmitted to the first LGP 100. The light blocking unit 400 is formed.

The second reflecting plate 520, which is another reflecting plate, is inserted into the through holes 101 and 501, and the second light guide plate 110 is positioned on the second reflecting plate 520.

Therefore, the lighting apparatus according to the third embodiment may illuminate the patterned light to be implemented by the second light guide plate 520 even if the lighting apparatus and structure of the first and second embodiments described above are slightly changed.

FIG. 10 is a schematic cross-sectional view illustrating a state in which the second light guide plates of the lighting apparatus according to the present invention are stacked. In the through hole 101 of the first light guide plate 100, light guide plates 111, 112, and 113 having different pattern shapes are illustrated. The light emitting devices 301, 302, and 303 are installed to be stacked and installed on the light guide plates 111, 112, and 113, respectively.

The stacked light guide plates 111, 112, and 113 are the second light guide plates described above.

Therefore, when the light emitting devices 301, 302, 303 are controlled and driven, light can be irradiated to a desired light guide plate among the light guide plates 111, 112, and 113, and the light guide plate to which the light is irradiated emits light to the light guide plate surface, thereby providing desired pattern light. It can be illuminated.

That is, as shown in FIG. 10, when light is irradiated from the primary light emitting elements 301 to the primary LGP 111, 'B1', which is light having a unique pattern shape of the primary LGP 111, is emitted to the outside of the lighting apparatus. do.

Similarly, when the light is irradiated from the secondary light emitting elements 302 or the tertiary light emitting elements 303 to the secondary light guide plate 112 or the tertiary light guide plate 113, the secondary light guide plate 112 or the tertiary light is emitted. 'B2' or 'B3', which is light of a pattern shape of each of the light guide plates 113, is emitted to the outside of the lighting apparatus.

Therefore, the lighting apparatus of the third embodiment of the present invention has the advantage that it is possible to illuminate a variety of pattern-shaped light by installing a light guide plate of a different pattern shape.

FIG. 11 is a schematic cross-sectional view showing an example in which a case is installed in a lighting device according to the present invention. FIG. The structural ones can be modified in various ways.

Referring to the structure of FIG. 11, a first reflecting plate 510 is fixed to a chassis 700 fixed to a wall, a ceiling, and a mounting table, and a first light guide plate 100 and a diffusion sheet ( 600 is stacked.

In addition, a through hole 101 is formed in the first reflecting plate 510 and the first light guide plate 100, and a light blocking part 400 is formed in an inner wall of the through hole 101. The second reflecting plate 520 is inserted into the through hole 101, and the second light guide plate 110 and the third light guide plate 120 are stacked in the second reflecting plate 520.

In addition, second and third light emitting devices 300 and 310 that irradiate light to each of the second LGP 110 and the third LGP 120 are positioned inside the through hole 101, and the chassis 700 is disposed in the chassis 700. The case 710 is connected to the case 710, and the first light emitting devices 200 are mounted on the case 710.

Therefore, this structure is for protecting the lighting device of the present invention from the outside and fixing it to the fixing portion, and Fig. 11 is an example of this structure.

12 is a view for explaining a state in which the light of the pattern shape is emitted to the lighting device according to the present invention, the lighting device 800 of the present invention is installed on the ceiling, the interior of the through hole 101 of the lighting device When light is emitted from the light guide plate 810 having a pattern shape, the light irradiated from the light guide plate 810 becomes a star pattern light 811 which is the same as a star pattern of the light guide plate 810.

FIG. 13 is a schematic plan view illustrating a state in which a plurality of through holes are formed in a first light guide plate of the lighting apparatus according to the present invention. The present invention provides a plurality of through holes 101 in the first light guide plate 100. ) And a light guide plate and a light emitting element having a pattern shape may be installed in each of the plurality of through holes 101.

Therefore, the lighting device of the present invention can produce a variety of lighting.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1 is a schematic cross-sectional view of a lighting apparatus according to a first embodiment of the present invention.

2 is a schematic plan view of a lighting apparatus according to a first embodiment of the present invention;

3 is a schematic cross-sectional view of a lighting apparatus according to a second embodiment of the present invention.

4 is a schematic cross-sectional view for explaining a first mode in which a lighting apparatus according to a second embodiment of the present invention is driven.

FIG. 5 is a schematic cross-sectional view for describing a second mode in which a lighting apparatus according to a second embodiment of the present invention is driven.

6 is a schematic cross-sectional view for explaining a third mode in which the lighting apparatus according to the second embodiment of the present invention is driven.

7 is a schematic cross-sectional view for explaining a state in which positions of the second and third light guide plates of the lighting apparatus according to the second embodiment of the present invention are changed.

8 is a schematic cross-sectional view showing a state in which a diffusion sheet is installed in the lighting apparatus according to the present invention.

9 is a schematic cross-sectional view of a lighting apparatus according to a third embodiment of the present invention.

10 is a schematic cross-sectional view showing a state in which the second light guide plates of the lighting apparatus according to the present invention are stacked.

11 is a schematic cross-sectional view showing an example in which a case is installed in the lighting device according to the present invention.

12 is a view for explaining a state in which the light of the pattern shape is emitted to the lighting apparatus according to the present invention.

13 is a schematic plan view for explaining a state in which a plurality of through holes are formed in a first light guide plate of a lighting apparatus according to the present invention;

Claims (14)

A first light guide plate having a through hole formed therein; First light emitting devices emitting light to the first light guide plate; A second light guide plate positioned inside the through hole; And a second light emitting device for emitting light to the second light guide plate. The method according to claim 1, And a light blocking unit positioned on an inner wall of the through hole to block light transmitted from the second light guide plate to the first light guide plate. The method according to claim 1, The first light guide plate and the second light guide plate, An illuminating device, which is attached to a reflecting plate. The method according to claim 1, The first light guide plate and the second light guide plate, A lighting device characterized by being attached to different reflectors. The method according to claim 1, The second light guide plate, Illumination apparatus, characterized in that formed in a pattern shape. The method according to claim 1, At least one light guide plate laminated on the second light guide plate is further stacked, Lighting device for transmitting light to the laminated light guide plate further characterized in that the arrangement. The method according to claim 6, The further laminated light guide plate is formed in a pattern shape. The method according to claim 1, At least one through hole is further formed in the first LGP. And at least one light guide plate and light emitting elements emitting light to the light guide plate in the formed through holes. The method according to claim 5, The second light emitting device, An illuminating device comprising red light emitting device, green light emitting device and blue light emitting device. A first light guide plate having a through hole formed therein; First light emitting devices emitting light to the first light guide plate; A first reflector formed on the first light guide plate; A second light guide plate positioned inside the through hole; Second light emitting devices emitting light to the second light guide plate; A second reflector formed on the second light guide plate; A third light guide plate laminated on the second light guide plate; Third light emitting devices emitting light to the third light guide plate; And a light blocking unit positioned on an inner wall of the through hole to block light transmitted from the second and third light guide plates inside the through hole to the first light guide plate. The method according to claim 10, The second light guide plate, It is formed in a pattern shape, The illuminating device characterized by the above-mentioned. The method according to claim 10, The first light emitting device, And an outer surface of the first light guide plate. The method according to claim 10, The first light guide plate and the second light guide plate, An illuminating device, which is attached to a reflecting plate. The method according to claim 10, The second and third light emitting devices, An illuminating device comprising red light emitting device, green light emitting device and blue light emitting device.

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