KR101660010B1 - Lighting apparatus using light guide plates - Google Patents

Lighting apparatus using light guide plates Download PDF

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Publication number
KR101660010B1
KR101660010B1 KR1020150103982A KR20150103982A KR101660010B1 KR 101660010 B1 KR101660010 B1 KR 101660010B1 KR 1020150103982 A KR1020150103982 A KR 1020150103982A KR 20150103982 A KR20150103982 A KR 20150103982A KR 101660010 B1 KR101660010 B1 KR 101660010B1
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KR
South Korea
Prior art keywords
guide plate
light guide
light
fixing
light source
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KR1020150103982A
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Korean (ko)
Inventor
이애정
배혜진
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플러스웰주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/02—Frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The present invention relates to a lighting apparatus using a light guide plate (LGP), and more specifically, to a lighting apparatus using an LGP, to form various shapes of through-holes in a central part of the LGP functioning as lighting, and install additional LGPs performing various functions, such as advertisement, decoration, drawing, marking, etc., into the through-holes, so as to use one lighting apparatus to various purposes. According to the present invention, the lighting apparatus comprises: a first LGP having a through-hole in a central part; a second LGP installed in the inside of the through-hole of the first LGP; a fixing frame inserted between the first and the second LGP to combine the first and the second LGP; and a first light source installed on an internal or external surface of the first LGP.

Description

TECHNICAL FIELD [0001] The present invention relates to a lighting apparatus using a light guide plate,

[0001] The present invention relates to a lighting apparatus using a light guide plate, and more particularly, to a lighting apparatus using a light guide plate, in which various shapes of through holes are formed in a central portion of a light guide plate serving as a lighting device and various functions such as advertisement, decoration, To a lighting apparatus using a light guide plate which allows one lighting apparatus to be used for various purposes by providing an additional light guide plate.

Generally, an illumination device using a light guide plate projects light onto a light guide plate made of a plate-like transparent plastic or an acrylic resin material through a light source such as a cold cathode ray tube (CCFL) or a light emitting diode (LED) And advertising panels.

As shown in FIG. 1, a conventional lighting device using a light guide plate includes a light guide plate 10 having light reflection parts 30 and 40 for reflecting light toward the front side on a rear surface of a light guide plate, A light source unit 20 for generating light toward the side surfaces of the light guide plate 10 or the light guide plate 10 and light reflection parts 30 and 40 formed on the rear surface of the light guide plate 10, And a light diffusion sheet 50 for covering the exposure, and is used as an illumination device.

However, in the above-mentioned conventional art, since a single light guide plate is used only for illumination, no decorative part is formed and various decorating effects can not be given, which is disadvantageous in that only a simple lighting device can be realized.

2, the main technical structure of the light guide plate illuminating device is a rear light guide plate (light guide plate) having a light reflecting portion 30 for reflecting light, A front light guide plate 10b coupled to a front surface of the rear light guide plate 10a and a light source unit 20 for generating light toward a side surface of the light reflection unit 30 or the rear light guide plate 10a, The front light guide plate 10b includes a transparent portion 12 through which light is transmitted and a decorative portion 14 through which a color printing layer is formed. The transparent portion 12 formed on the front light guide plate 10b includes a rear surface And is formed at a position corresponding to the light reflection part 30 formed on the light guide plate.

Although the conventional art has solved the problems of the related art by including the decorative part 14 on the front light guide plate 10b, it has a dual structure of the rear light guide plate 10a and the front light guide plate 10b, And the weight is too heavy.

In addition, when the shape of the decorative part 14 is to be replaced, it is necessary to dismantle the entire light guide plate, and a large part of the lighting device must be replaced.

In recent years, a pendant type lighting apparatus having a through hole formed at the center of the light guide plate has been used. However, this pendant type lighting apparatus has a disadvantage that it can not be used for many purposes because it functions only as a lighting apparatus. There is a problem that the wires are exposed to the outside and the aesthetics are damaged and the installation cost is increased.

1. Korean Registered Patent No. 10-1032470 (2011. 05. 04. Announcement) 2. Korean Registered Patent No. 10-1412134 (issued on April 26, 2014)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a light guiding plate, a light guiding plate, and a light guiding plate using the first light guiding plate having a through- And a lighting device using the light guide plate which can be used for various purposes such as advertising, decoration and the like.

In addition, the present invention provides a lighting system using a light guide plate that minimizes the overall volume of the lighting apparatus by installing two light guide plates on the same plane and minimizes the process of replacing the expression of advertisement, There are other purposes in providing the device.

In addition, since the advertisement, decoration, and the like expressed by the light guide plate can be selectively positioned at the central portion or the edge portion of the lighting device, the visual effect can be different according to the purpose of use, and the two light guide plates can have different colors or color temperatures The present invention also provides a lighting device using a light guide plate that can display a desired design in a variety of ways and stably by providing a light source with a light source.

It is another object of the present invention to provide a lighting device using a light guide plate which allows a lighting device to be easily installed on a ceiling, a wall surface, or the like by a simple structure, .

According to an aspect of the present invention,

A lighting apparatus using a light guide plate, comprising: a first light guide plate having a through hole at a central portion thereof; a second light guide plate disposed inside the through hole of the first light guide plate; and a second light guide plate inserted between the first light guide plate and the second light guide plate, A fixed frame for coupling the light guide plate and the second light guide plate, and a first light source installed on an outer surface or an inner surface of the first light guide plate.

At this time, a light diffusion sheet is installed on a front portion of the first light guide plate.

In addition, a decoration member including any one of a color sheet, a color film, and a color printing layer is attached to the front or back side of the second light guide plate.

A second light source is installed on a side surface or a rear surface of the second light guide plate.

Here, a light reflecting sheet is provided on the rear surface of the first light guide plate or the second light guide plate.

The second light source may be disposed between the first light guide plate and the second light guide plate so that the second light source is disposed in the fixed frame in the direction of the second light guide plate. 2 light guide plate, and to minimize the thickness of the illumination unit illuminated by the second light source.

The light reflection sheet is disposed on the rear surface of the first light guide plate and the second light guide plate, respectively.

A light refraction pattern for reflecting light generated from the first and second light sources to the front is formed on a front surface or a rear surface of the first light guide plate or the second light guide plate.

In addition, a light refraction polymer for reflecting light generated from the first or second light source to the front is added to the first light guide plate or the second light guide plate.

The first light source and the second light source may be connected to and operate on one and the same converter.

The fixed frame may have a T-shaped or I-shaped cross section.

The fixing bracket may further include a mounting bracket connected to the stationary frame to fix the lighting device to the ceiling or the wall.

In this case, the mounting bracket may include a first mounting bracket fixed to the ceiling or the wall, a second mounting portion having one end connected to the first mounting bracket so as to be rotatable or angularly adjustable and the other end fixed to the stationary frame And is separated into brackets.

The lighting apparatus may further include a housing fixedly installed on the ceiling or the wall and having an installation groove into which the lighting apparatus is inserted and coupled inward.

According to another aspect of the present invention, there is provided an illumination device using a light guide plate, comprising: a first light guide plate having a through hole at a center thereof; a light source provided on an outer surface or an inner surface of the first light guide plate; And a housing having a mounting groove into which the first light guide plate is inserted.

In this case, the illumination device is coupled to the installation groove of the housing so as to be rotatable or adjustable in angle.

The light guide plate may further include first fixing means for fixing the housing to a ceiling or a wall, and second fixing means for fixing the first light guide plate to the mounting groove.

The first fixing bracket is connected to the first fixing bracket so as to be rotatable or angularly adjustable while the other end is fixed to the first fixing bracket. And a second fixing bracket fastened and fixed to the frame.

In addition, the housing is provided with a fixing rod penetrating through the fixing frame, and a connection bracket is provided between the fixing rod and the fixing frame.

According to another aspect of the present invention, there is provided an illumination device using a light guide plate, comprising: a first light guide plate having a through hole at a center thereof; a light source provided on an outer surface or an inner surface of the first light guide plate; A first mounting bracket fixed to the ceiling or the wall, and a second mounting bracket having one end connected to the first mounting bracket and the other end fixed to the fixed frame.

According to the present invention, two light guide plates are provided on the same plane so that the lighting apparatus can be utilized for various purposes such as lighting, decoration, advertisement, and painting without using a bulky bulb as a whole .

Further, according to the present invention, it is possible to easily change the design such as advertisement, decoration, painting, etc. expressed in the lighting device, and the lighting device can be easily installed on the ceiling or the wall surface by a simple structure, Can be reduced.

In addition, according to the present invention, since the advertisement, decoration, and the like expressed by the light guide plate can be selectively positioned at the center portion or the edge portion of the lighting device, the visual effect can be different according to the purpose of use, Or by providing a light source having a color temperature, it has the effect of being able to express a desired design variously and stably.

In addition, according to the present invention, the angle of the light guide plate provided inside the housing can be arbitrarily adjusted, and the direction of the illumination and the design can be easily adjusted.

1 is a side view showing a conventional lighting apparatus using a light guide plate.
2 is a side view showing another embodiment of a lighting apparatus using a conventional light guide plate.
3 is a front sectional view showing an embodiment of a lighting apparatus using a light guide plate according to the present invention.
Figures 4 (a) and 4 (b) are plan views of the present invention shown in Figure 3;
5 is a front sectional view showing a second embodiment of the lighting apparatus using the light guide plate according to the present invention.
6 is a front sectional view showing a third embodiment of a lighting apparatus using a light guide plate according to the present invention.
7 (a) and 7 (b) are front sectional views showing a fourth embodiment of the lighting device using the light guide plate according to the present invention.
8 (a) and 8 (b) are front sectional views showing a fifth embodiment of the lighting device using the light guide plate according to the present invention.
9 is a perspective view showing a sixth embodiment of the lighting apparatus using the light guide plate according to the present invention.
10 is a sectional view showing an embodiment for installing a lighting device using a light guide plate according to the present invention.
11 is a sectional view showing another embodiment for installing a lighting device using a light guide plate according to the present invention.
12 is a sectional view showing still another embodiment for installing a lighting device using a light guide plate according to the present invention.
13 is a sectional view showing still another embodiment for installing a lighting device using a light guide plate according to the present invention.
14 is a sectional view showing an embodiment for installing a seventh embodiment of a lighting apparatus using a light guide plate according to the present invention.
15 is a sectional view showing another embodiment for installing a seventh embodiment of a lighting apparatus using a light guide plate according to the present invention.

Hereinafter, preferred embodiments of a lighting apparatus using a light guide plate according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a front sectional view showing an embodiment of an illumination device using a light guide plate according to the present invention, FIGS. 4 (a) and 4 (b) are plan views of the present invention shown in FIG. 3, 6 is a front cross-sectional view showing a third embodiment of the lighting device using the light guide plate according to the present invention, and Figs. 7 (a) and 7 (b) are front elevational views showing a second embodiment of the lighting device using the light guide plate, 8 is a front sectional view showing a fourth embodiment of the lighting device using the light guide plate according to the present invention, and Figs. 8 (a) and 8 (b) are front sectional views showing a fifth embodiment of the lighting device using the light guide plate according to the present invention And FIG. 9 is a perspective view showing a sixth embodiment of the lighting apparatus using the light guide plate according to the present invention, FIG. 10 is a sectional view showing an embodiment for installing a lighting apparatus using the light guide plate according to the present invention, Installing the lighting device using the light guide plate according to the invention 12 is a cross-sectional view showing another embodiment for installing a lighting device using a light guide plate according to the present invention, and Fig. 13 is a sectional view for showing a lighting device using the light guide plate according to the present invention 14 is a cross-sectional view showing an embodiment for installing a seventh embodiment of the lighting apparatus using the light guide plate according to the present invention, and Fig. 15 is a sectional view showing the lighting apparatus using the light guide plate according to the present invention Sectional view showing another embodiment for installing the seventh embodiment.

The present invention is characterized in that various shapes of through holes are formed in a central portion of a light guide plate serving as a light source and an additional light guide plate for performing various functions such as advertisement, decoration, painting, The first light guide plate 110, the second light guide plate 120, the fixing frame 130, and the first light guide plate 120. The first light guide plate 110, the second light guide plate 120, And a light source 140.

More specifically, the first light guide plate 110 is made of a translucent plastic or an acrylic resin having a high light transmittance while being easy to process, so that the light generated from the first light source 140 is uniformly The first light guide plate 110 has a through hole 112 through which the second light guide plate 120 can be inserted into the inner center of the first light guide plate 110.

Next, the second light guide plate 120 is inserted into the through hole 112 formed in the first light guide plate 110, so that it can perform various displays such as advertisement, painting, So that the appearance of the lighting apparatus 100 can be made more beautiful and at the same time, the lighting apparatus 100 can perform various functions using the lighting apparatus 100.

In other words, conventionally, in order to utilize the illumination device 100 for various purposes, the size and thickness of the entire lighting device 100 are increased, such that the light guide plate is installed both before and after the light guide plate 100, The through hole 112 is provided inside the first light guide plate 110 and the through hole 112 is provided with an additional function such as decoration or advertisement The second light guide plate 120 is provided to enable various functions to be performed without increasing the overall volume of the illumination device 100. [

4 (a) and 4 (b), the through hole 112 is formed in various shapes such as a circular shape or a quadrangle shape, and the second light guide plate 120 is also formed in the shape of the through hole 112 It should be understood that the present invention may be embodied in many other forms without departing from the spirit or essential characteristics thereof.

The fixed frame 130 serves to couple the first light guide plate 110 and the second light guide plate 120 to each other and is inserted between the first light guide plate 110 and the second light guide plate 120 .

That is, after a fixing frame 130 having a T-shaped or I-shaped cross-section is installed in the through hole 112 formed in the first light guide plate 110, The first and second light guide plates 110 and 120 can be connected and supported by the fixed frame 130 by providing the second light guide plate 120 on the first light guide plate 110. [

3, a fixing member 134 fixed by a fastening means such as a bolt is additionally provided at an end of the fixing frame 130, The first and second light guide plates 110 and 120 may be fixed in a state of supporting the first and second light guide plates 110 and 120. In order to couple the fixed frame 130 and the first and second light guide plates 110 and 120, Means or fastening means may be used. Here, the fixing frame 130 and the fixing member 134 also dissipate heat generated from the first light source 140 or a second light source 150, which will be described later.

8, the protrusion 132 may be formed at the end of the fixed frame 130 so as to bend inward to partially cover the edge of the second light guide plate 120, thereby forming the second light guide plate 120. [ As shown in FIG.

The first light source 140 is disposed on the first light guide plate 110 and generates light toward the inside of the first light guide plate 110. The first light source 140 may include a substrate A cold cathode ray lamp (CCFL), a light emitting diode (LED), or the like.

3 and 5, the first light source 140 may be selectively disposed on the inner surface of the first light guide plate 110, that is, on the inner side of the through hole 112 and on the outer surface of the first light guide plate 110. [ The first light guide plate 110 and the second light guide plate 110 may be disposed on the inner surface of the first light guide plate 110. When the first light guide plate 110 is installed on the inner surface of the first light guide plate 110, Is capable of simultaneously performing a heat dissipation function for dispersing heat generated from the first light source 140.

When the first light source 140 is installed on the outer surface of the first light guide plate 110, the first light source 140 may be inserted into the molding 180 for decorating and protecting the rim of the lighting apparatus 100, A heat radiating frame (not shown) for radiating heat generated from one light source 140 may be provided.

A light reflecting sheet 114 is attached to or attached to the rear surface of the first light guide plate 110. The light reflecting sheet 114 reflects light emitted from the first light source 140 to the first light guide plate 110, The reflection efficiency of the light generated from the first light source 140 can be improved by reflecting the light toward the front surface of the first light guide plate 110, (110) from being damaged.

The light refraction pattern 116 may be formed on the front surface or the rear surface of the first light guide plate 110. The light refraction pattern 116 may be formed on the first light source 140 Of the first light guide plate 110 so as to be reflected toward the front surface of the first light guide plate 110 so as to improve the illumination efficiency of the first light guide plate 110.

As the light refraction pattern 116, a pattern such as a printed layer adhered to a rear portion or a front portion of the first light guide plate 110 or a groove or a protrusion formed on a rear surface of the first light guide plate 110 may be used And a light refraction pattern 116 is formed on the first light guide plate 110 according to the distance from the first light source 140 in order to generate a uniform illuminance on the front surface of the first light guide plate 110 when the light refraction pattern 116 made of the groove or protrusion is used, The size of the light deflection pattern 116 or the distance between the light refraction patterns 116 may vary.

Also, the light refraction polymer may be added to the first light guide plate 110. The light refraction polymer may also transmit light, which is introduced into the first light guide plate 110 from the first light source 140, 110 to improve the illumination efficiency of the first light guide plate 110.

Next, a light diffusion sheet 118 may be attached to the front surface of the first light guide plate 110. The light diffusion sheet 118 may uniformly diffuse the light emitted through the front surface of the first light guide plate 110 And serves to hide the light refraction pattern 116 provided on the rear surface of the first LGP 110 from being exposed to the front surface.

That is, when the light refraction pattern 116 is exposed to the front surface of the first light guide plate 110, the overall appearance of the lighting apparatus 100 may be damaged. Therefore, the light diffusion sheet 118 It is possible to prevent the light refraction pattern 116 from being exposed to the front surface of the first light guide plate 110 without any additional configuration.

Meanwhile, in the case of the second light guide plate 120, which is responsible for functions such as advertisement and decoration, the second light guide plate 120 is provided with a decorative The decorating unit may include a decorative sheet such as a color sheet, a paper and a cloth attached to the color printing layer formed on the rear or front surface of the second light guide plate 120 or the rear or front surface of the second light guide plate 120, (122) may be used.

That is, the first light guide plate 110 is formed of a light reflecting sheet 114 provided on the rear or front surface of the first light guide plate 110, and a light refraction sheet 116 And the second light guide plate 120 functions as an advertisement or decoration or the like by a decorative member 122 provided on the rear or front surface of the second light guide plate 120, So that various effects can be produced by using the lighting device 100.

At this time, the design of advertisement, decoration, painting, etc. expressed in the second light guide plate 120 can be easily changed only by replacing the decorative member 122 provided on the rear or front face of the second light guide plate 120 .

The first light guide plate 110 and the second light guide plate 120 can be more clearly distinguished from each other by the fixing frame 130 provided between the first light guide plate 110 and the second light guide plate 120 And the first light guide plate 110 and the second light guide plate 120 are provided in the first light guide plate 110 and the second light guide plate 120, ) May be configured to take charge of the lighting function.

According to another embodiment of the lighting apparatus 100 using the light guide plate according to the present invention, a second light source 150 for generating light to the inside of the second light guide plate 120 may be additionally provided The second light source 150 may be inserted between the side surface of the second light guide plate 120 and the outer surface of the second light guide plate 120 or inserted into the rear surface of the second light guide plate 120, Can be installed.

6, the second light source 150 may be installed on the fixed frame 130 to generate light toward the inside of the second light guide plate 120. At this time, the second light guide plate A light refraction pattern 126 for reflecting the light generated from the second light source 150 to the front is formed on the rear surface of the light refraction pattern 120 and a light reflection sheet 124 is formed on the rear surface of the light refraction pattern 126 And a decorative member 122 functioning as an advertisement, decoration, or the like may be attached to the front portion of the second light guide plate 120.

Also, as in the case of the first light guide plate 110, a light refraction polymer may be added to the second light guide plate 120 to refract light generated from the side surface of the second light guide plate 120 toward the front surface. to be.

7 (a), when the second light source 150 is inserted into the rear portion of the second light guide plate 120, the second light source 150 is disposed behind the second light guide plate 120, So that a space can be formed to allow insertion.

At this time, a light reflecting sheet 124 is provided on the rear side of the second light source 150 to improve the illuminance of light emitted to the front surface of the second light guide plate 120, and the second light source 150, The light reflecting sheet 124 is configured to be separated from the light reflecting sheet 114 provided on the rear portion of the first light guide plate 110, The decorative member 122 installed on the front surface or the rear surface of the second light source 150 or the second light guide plate 120 can be easily replaced.

A decorative member 122 is attached to the front or rear portion of the second light guide plate 120. The decorative member 122 functions as a light source for emitting light from the second light source 150, So that the effect of advertisement or decoration by the second light guide plate 120 can be improved by providing the decorative member 122 with improved visibility.

Here, the second light guide plate 120 may be formed of a transparent plate having no light refraction pattern.

7 (b), when the second light source 150 is inserted into the rear portion of the second light guide plate 120, the second light guide plate 120 can be replaced with the light diffusion sheet 128 In this case, the decorative member 122 is attached to the front surface of the light diffusion sheet 128 (the reference numeral 152 is a substrate for installing the second light source 150).

The color or color temperature of light generated by the first light source 140 and the second light source 150 may be different from each other to improve the visibility of the illumination device 100 and improve the interior effect of the illumination device 100 itself Of course.

The second light source 150 may be disposed between the first light guide plate 110 and the second light guide plate 120 or the light diffusion sheet 128 as shown in FIGS. 8A and 8B, Diffusion plate 128 for coupling the first light guide plate 110 and the second light guide plate 120 or the light diffusion sheet 128 without being directly installed on the side surfaces of the second light guide plate 120 or the light diffusion sheet 128, The second light source 150 may be disposed on the side of the second light guide plate 120 or the light diffusion sheet 128 of the first light guide plate 130 or between the light diffusion sheet 128 and the light reflection sheet 124 As shown in FIG.

That is, the second light source 150 is installed on the side surface of the fixed frame 130, and the second light source 150 is disposed between the second light guide plate 120 and the light reflection sheet 124, So that the area utilization efficiency of the second light guide plate 120 can be increased and the thickness of the illumination space used by the second light guide plate 120 can be minimized.

6, the second light source 150 is disposed on the fixed frame 130 to generate light toward the inside of the second light guide plate 120, and the second light guide plate 120, When the light refraction pattern 126 for reflecting the light generated from the second light source 150 to the front is formed on the rear portion of the second light guide plate 120, The light emitted from the second light source 150 to the inside of the second light guide plate 120 is reduced by the thickness of the second light guide 150 inserted between the light guide plates 120, A light refraction pattern 126 is formed at a certain distance from the edge of the second light guide plate 120 to cover the shade portion. As a result, The illumination area of the illumination unit is further reduced. The thickness of the second light guide plate 120 may be reduced so that the second light source 150 is installed between the second light guide plate 120 or between the light diffusion sheet 128 and the light reflection sheet 124 .

7 (a), when the second light source 150 is inserted into the rear portion of the second light guide plate 120, the light emitted from the second light source 150 is incident on the second light guide plate 120 Since the second light source 150 must be disposed at a considerable distance from the second light guide plate 120 so that no shaded portion is generated in the second light guide plate 120 or the decorative member 122, The thickness of the illuminating part illuminated by the light source 150 may become very large.

According to another embodiment of the lighting apparatus 100 'using the light guide plate according to the present invention, the lighting apparatus 100' including the first and second light guide plates 110 and 120, more specifically the first light guide plate 110, The housing 160 may be fixed to a wall or a ceiling to provide an interior function to the lighting device 100 ', and may include a first and a second lighting device 100' 2 light guide plates 110 and 120. In this case, the angle of the lighting device 100 including the light guide plates 110 and 120 can be adjusted.

11 to 13, the housing 160 is configured such that one side, that is, the upper side thereof is opened and can be installed on the wall or the ceiling by the first fixing means 165, A mounting groove 162 is formed to allow the first light guide plate 110 corresponding to the outer shape of the lighting apparatus 100 to be inserted therein. The mounting groove 162 corresponds to the shape of the first light guide plate 110 And the overall shape of the housing 160 may be formed to have various cross-sectional shapes such as a circular shape and a polygonal shape.

The illumination device 100 includes the first and second light guide plates 110 and 120. The illumination device 100 includes a first light guide plate 110 and a second light guide plate 120, And the front portion is inserted into the installation groove 162 so as to reach the same height as the bottom portion of the housing 160.

The first light guide plate 110 is rotatably coupled to the mounting groove 162 of the housing 160 to adjust the angle of the lighting device 100. For this purpose, Is formed so as to be deeper than the thickness of the illumination device 100 so that a space portion is formed between the bottom portion of the installation groove 162 and the illumination device 100.

11, the first light guide plate 110 may be fixed to the mounting groove 162 by fixing the amount of the molding 180 coupled to the outside of the first light guide plate 110 The first light guide plate 110 is fixed to both side portions of the mounting groove 162 by fastening means 163 so that the first light guide plate 110 is fixed to both side portions of the mounting groove 162 with a fastening means (not shown) .

That is, the lighting device 100 including the first and second light guide plates 110 and 120 installed in the installation groove 162 of the housing 160 is rotated about the fastening means 163 fastened to both sides thereof The angle formed by the illumination generated from the first light guide plate 110 and the angle of the advertisement, decoration, etc. generated from the second light guide plate 120 can be adjusted by the user's choice.

12, the fixing rod 164 may be fixed to the mounting groove 162 of the housing 160 in order to engage the lighting device 100 including the first and second light guide plates 110 and 120. [ And the connection bracket 166 may be used as the fixing bracket 166. The fixing rod 164 is installed to penetrate the housing 160 in the lateral direction to fix the connection bracket 166. The connection bracket 166 Is connected between the fixing rod 164 and the fixed frame 130 or the fixing member 134 coupled to the upper portion of the fixed frame 130 and is connected to the lighting device including the first and second light guide plates 110 and 120 100 can be fixed to the housing 160.

That is, the lower ends of the connection brackets 166 are connected to both sides of the fixed frame 130, and the lower ends of the connection brackets 166 are coupled to the fixed rods 164 through the coupling holes 166a formed in the upper portion of the connection brackets 166, The second light guide plate 110 and the second light guide plate 120 can be fixedly installed in the mounting groove 162 of the housing 160.

According to another embodiment of the lighting apparatus 100 'using the light guide plate according to the present invention, the first light guide plate 110, more specifically, the lighting apparatus 100 including the first and second light guide plates 110 and 120 A second fixing means 190 for fixing the illumination device 100 to the installation groove 162 is provided so that the illumination device 100 can be installed to be rotatable or angularly adjustable in the installation groove 162 of the housing 160 As shown in FIG. 13, the second fixing unit 190 includes a first fixing bracket 190a and a second fixing bracket 190b.

More specifically, the first fixing bracket 190a is installed inside the installation groove 162 and is fixed to the housing 160 by fastening means such as a bolt. The first fixing bracket 190a may be formed in a " And can be formed into an 'a' shape.

The second fixing bracket 190b is connected between the first fixing bracket 190a and the fixing frame 130 or the fixing member 134 of the lighting device 100 to include the first light guide plate 110 The upper end of the first fixing bracket 190a is connected to the first fixing bracket 190a so as to be rotatable or angularly adjustable, and the other end That is, the lower end portion is configured to be fastened to the upper end of the fixing frame 130 or the fixing member 134 by fastening means such as a screw column.

That is, the connection portion between the first fixing bracket 190a and the second fixing bracket 190b is rotated by a hinge or a revolution joint, or the first fixing bracket 190a and the second fixing bracket 190b, The angle of the illumination device 100 including the first light guide plate 110 inserted in the installation groove 162 can be freely adjusted by the user's choice, will be.

In this case, it is needless to say that the connecting portion between the first fixing bracket 190a and the second fixing bracket 190b can support the weight of the lighting apparatus 100 in a state where the installation angle is fixed without any additional configuration.

In addition, a locking hole (not shown) is formed in the lower end of the second fixing bracket 190b so that a threaded column can be inserted into the locking hole, so that the fixing frame 130 and the second fixing bracket 190b, The first fixing bracket 130, the fixing member 134 and the second fixing bracket 190b can be fastened and fixed.

A space for installing the converter 168 is formed inside the housing 160, that is, inside the installation groove 162, so that the converter 168 is not visually recognized from the outside of the lighting apparatus 100 Thereby preventing the converter 168 from damaging the entire aesthetics of the lighting apparatus 100. [

In addition, the converter 168 can be applied to the first light source 140 and the second light source 150 at the same time, thereby minimizing unnecessary space by the added converter 168.

The structure in which the illumination device 100 including both the first light guide plate 110 and the second light guide plate 120 are inserted into the installation groove 162 of the housing 160 has been described, The mounting groove 162 formed in the housing 160 is formed in a donut shape so that the second light guide plate 120 is not provided inside the through hole 112 of the first light guide plate 110, The illumination device 100 including the first light guide plate 110 having the through holes 112 formed therein and the first light source 140 and the fixed frame 130 is rotated or angled inside the installation groove 162 of the housing 160 It is also possible to install it so that it can be adjusted.

A first light guide plate 110 having a through hole 112 formed at a central portion thereof and a first light source 140 inserted into an outer or inner side surface of the first light guide plate 110 and an inner side of the through hole 112 The illumination device 100 includes the fixing frame 130 coupled to the first light guide plate 110. In a state where the lighting device 100 is inserted into the installation groove 162 formed corresponding to the shape of the first light guide plate 110 The illumination device 100 is fixed to be rotatable or angularly adjustable using the first fixing bracket 190a and the second fixing means 190 including the second fixing bracket 190b, The lighting device 100 'capable of rotating or adjusting the angle of the first light guide plate 110 can be installed by fixing the housing 160 to the wall or the ceiling using the means 165.

According to another embodiment of the lighting device 100 using the light guide plate according to the present invention, the lighting device 100 may further include an installation bracket 170 for fixing the lighting device 100 to a ceiling or a wall And one or more connection brackets 170 are connected to the fixed frame 130.

10, the first mounting bracket 172 includes a first mounting bracket 172 and a second mounting bracket 174. The first mounting bracket 172 includes a first mounting bracket 172 and a second mounting bracket 174, And the second mounting bracket 174 is fixed to the ceiling or the wall by the fastening means such as the first mounting bracket 172, And the fixed frame 130 or the fixing member 134 so that the lighting device 100 can be fixed to the ceiling or the wall in a state where the lighting device 100 can be rotated or adjusted in angle.

At this time, the second mounting bracket 174 is connected to the first mounting bracket 172 so as to be rotatable or angularly adjustable, as in the case of the second fixing bracket 190b. At this time, The bracket 174 and the first mounting bracket 172 may be connected by a coupling means such as a bolt or a nut using a coupling hole 176 formed in the first and second mounting brackets 172 and 174, And joining by a revolution joint may be used.

That is, in this embodiment, since the housing 160 is not included, the user can directly adjust the connection portion between the first mounting bracket 172 and the second mounting bracket 174, so that the first and second fixing brackets 190a, and 190b, a connection method using a bolt and a nut may be additionally used in addition to coupling using a hinge coupling or a revolute joint.

Therefore, the user can change the installation angle of the illumination device 100 from the first light guide plate 110 to the second light guide plate 110 according to the purpose of use by the connection structure between the first installation bracket 172 and the second installation bracket 174, It is possible to freely adjust the angle of the generated illumination and the advertisement, decoration, etc. generated from the second light guide plate 120. [

15, a first light guide plate 110 having a through hole 112 formed at the central portion thereof, a first light guide plate 140 inserted into the outer or inner surface of the first light guide plate 110, The first mounting bracket 172 and the second mounting bracket 174 can be installed without the separate housing in the case of the lighting device 100 including the fixing frame 130 and the fixing frame 130 coupled to the inside of the through- The lighting device 100 may be fixed to the ceiling or the wall in a state in which the lighting device 100 is rotatable or angularly adjustable by using the mounting bracket 170 including the mounting bracket 170. [

At this time, the first and second mounting brackets 172 and 174 may be connected to one or more fixed frames 130 in consideration of the size, weight, and the like of the entire lighting device 100.

Therefore, according to the lighting apparatuses 100 and 100 'using the light guide plate according to the present invention, two light guide plates can be installed on the same plane, so that the brightness of the entire lighting apparatus 100 100, can be used for various purposes such as lighting, decoration, advertisement, and conversation, and the design such as advertisement, decoration, and painting expressed in the lighting apparatus 100 can be easily replaced. It is possible to reduce the installation cost and the maintenance cost since the apparatus 100 can be easily installed on the ceiling or the wall surface, and the advertisement, decoration, etc. represented by the light guide plate can be selectively provided in the central portion or the edge portion of the lighting apparatus 100 So that the visual effect can be different according to the purpose of use, and a light source having different color or color temperature is installed on the two light guide plates As to have a number of benefits, such as that can also easily adjust lighting and directional design is directed to so as to adjust optionally the angle of the light guide plate, which is installed inside and at the same time, the housing 160 can be varied and stably express a desired design.

However, the present invention is not limited to the above-described embodiments, and the first light guide plate and the second light guide plate may be interchanged with each other, It is obvious to those skilled in the art that various modifications can be made without departing from the technical idea of the present invention, for example, the first light guide plate can function as a light guide plate and the second light guide plate can function as a lighting function.

[0001] The present invention relates to a lighting apparatus using a light guide plate, and more particularly, to a lighting apparatus using a light guide plate, in which various shapes of through holes are formed in a central portion of a light guide plate serving as a lighting device and various functions such as advertisement, decoration, To a lighting apparatus using a light guide plate which allows one lighting apparatus to be used for various purposes by providing an additional light guide plate.

100, 100 ': illumination device 110: first light guide plate
112: through hole 114, 124: light reflecting sheet
116, 126: light refraction pattern 118, 128: light diffusion sheet
120: second light guide plate 122: decorative member
130: fixed frame 132:
134: fixing member 140: first light source
150: second light source 160: housing
162: installation groove 163: fastening means
164: fixing rod 165: first fixing means
166: Connection brackets 166a, 176: Coupling holes
168: converter 170: mounting bracket
172: first mounting bracket 174: second mounting bracket
180: molding 190: second fixing means
190a: first fixing bracket 190b: second fixing bracket

Claims (21)

In a lighting apparatus using a light guide plate,
A first light guide plate having a through hole formed at a central portion thereof,
A second light guide plate disposed inside the through-hole of the first light guide plate,
A fixed frame inserted between the first light guide plate and the second light guide plate and coupling the first light guide plate and the second light guide plate,
And a first light source disposed on an outer surface or an inner surface of the first light guide plate.
The method according to claim 1,
Wherein a light diffusion sheet is provided on a front portion of the first light guide plate.
The method according to claim 1,
Wherein a decorative member including any one of a color sheet, a color film, and a color printing layer is attached to a front surface or a rear surface of the second light guide plate. The method according to claim 1,
And a second light source is installed on a side surface or a rear surface of the second light guide plate.
The method according to claim 1,
Wherein the second light guide plate is a translucent plate or a light diffusion sheet of a transparent material.
5. The method of claim 4,
And a light reflecting sheet is provided on a rear surface of the first light guide plate or the second light guide plate.
The method according to claim 6,
The second light source is disposed between the first light guide plate and the second light guide plate and is disposed in the fixed frame in the direction of the second light guide plate. The second light guide plate is disposed between the second light guide plate and the light reflection sheet, And the thickness of the illumination unit illuminated by the second light source can be minimized.
The method according to claim 6,
Wherein the light reflection sheet is installed on the rear surface of the first light guide plate and the rear surface of the second light guide plate, respectively.
5. The method of claim 4,
Wherein a light refraction pattern is formed on a front surface or a rear surface of the first light guide plate or the second light guide plate to reflect light generated from the first and second light sources to the front surface.
5. The method of claim 4,
Wherein a light refraction polymer for reflecting light generated from the first or second light source to the front side is added to the inside of the first light guide plate or the second light guide plate.
5. The method of claim 4,
Wherein the first light source and the second light source are connected to and operate on one and the same converter.
The method according to claim 1,
Wherein the fixed frame is formed to have a T-shaped or I-shaped cross-section.
The method according to claim 1,
And a mounting bracket connected to the stationary frame to fix the lighting device to the ceiling or the wall.
14. The method of claim 13,
The mounting bracket includes a first mounting bracket fixedly installed on a ceiling or a wall, a second mounting bracket having one end connected to the first mounting bracket so as to be rotatable or angularly adjustable, and the other end fixed to the stationary frame And the light guide plate is separated from the light guide plate.
The method according to claim 1,
Further comprising a housing fixed to the ceiling or the wall and having an installation groove into which the first light guide plate is inserted and coupled.
In a lighting apparatus using a light guide plate,
A first light guide plate having a through hole formed at a central portion thereof,
A light source provided on an outer side surface or an inner side surface of the first light guide plate,
A fixed frame coupled to the inside of the through hole,
And a housing having a mounting groove into which the first light guide plate is inserted.
17. The method according to claim 15 or 16,
Wherein the first light guide plate is coupled to an installation groove of the housing so as to be rotatable or angularly adjustable.
17. The method according to claim 15 or 16,
First fixing means for fixing the housing to a ceiling or a wall,
And a second fixing means for coupling the first light guide plate to the mounting groove.
19. The method of claim 18,
The first fixing bracket is connected to the first fixing bracket so as to be rotatable or angularly adjustable and the other end is fixed to the fixing frame. And a second fixing bracket fastened and fixed to the first fixing bracket.
17. The method according to claim 15 or 16,
Wherein a fixing bar is provided in the housing and a connection bracket is provided between the fixing bar and the fixing frame.
In a lighting apparatus using a light guide plate,
A first light guide plate having a through hole formed at a central portion thereof,
A light source provided on an outer side surface or an inner side surface of the first light guide plate,
A fixed frame coupled to the inside of the through hole,
A first installation bracket fixedly mounted on the ceiling or the wall, and
And a second mounting bracket having one end connected to the first mounting bracket and the other end fixed to the fixing frame.


KR1020150103982A 2015-03-23 2015-07-22 Lighting apparatus using light guide plates KR101660010B1 (en)

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EP3885649A1 (en) * 2020-03-27 2021-09-29 Arcadyan Technology Corporation Circular light-guiding structure and light-guiding device

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