WO2010090424A2

WO2010090424A2 - Line-type led sign

Info

Publication number: WO2010090424A2
Application number: PCT/KR2010/000617
Authority: WO
Inventors: 유영호
Original assignee: 화우테크놀러지주식회사
Priority date: 2009-02-03
Filing date: 2010-02-02
Publication date: 2010-08-12
Also published as: WO2010090424A3

Abstract

The present invention relates to a line-type LED sign which uses line-type light-emitting means for guiding, transmitting, and emitting incident light via one end thereof from a light source along a line-type light guide using a total internal reflection of light, thus easily producing line-type signs having a wide variety of shapes in an economically advantageous manner, and achieving visibility and aesthetic enhancements of the line-type LED sign. To this end, the line-type LED sign of the present invention comprises: a light source unit having a light-emitting diode (LED) serving as a light source; a light source housing in which the light source unit is installed and which is fixed onto a structure, and which serves as heat-dissipating means of the light source unit; and line-type light-emitting means which is constituted by a line-type light guide, and which has a reflection plane formed in the lengthwise direction thereof to transmit and emit the light of the LED incident via a light receiving end thereof.

Description

Line Type LED Sign

The present invention economically implements a line-type sign of various shapes economically by using a line-type light emitting means in which the light of the light source incident through one end by using total internal reflection of the light is guided, transmitted and diverted on the line-type body. The present invention relates to a line type LED sign for easy and visually unique beauty.

In general, a line type LED sign using a LED as a light source and a letter or any shape in a promotional material or a decorative sign is used.

The line type LED sign is formed by forming a light emitting line in a letter or arbitrary shape, except for a box-shaped frame, which has been involved in a general sign, and has a merit of making a sign of a larger scale easily.

In the prior art line type LED sign, as illustrated in FIG. 19, the LEDs 11 are continuously arranged along the light emitting line, and the frame 101 is formed to correspond to the light emitting lines for installing the LEDs 11. A light cover 103 is provided.

Accordingly, there is a drawback in that a large amount of LEDs 11 are required along the light emitting line, and the lengthwise frame 103 corresponding to the shape and curvature of the light emitting line must be manufactured separately, thereby increasing the manufacturing cost.

In addition, the LED is installed toward the front has a disadvantage of severe glare and lack of beauty.

Line type LED sign according to the present invention having the above configuration

First, it is easy to implement line-type signage of various shapes by using the line-type light emitting means that the light of the light source incident through one end by using the total internal reflection of the light is guided, transmitted and diverted on the light guide in the form of a line. There is a remarkable effect that the glare is prevented and has a visually unique beauty to improve the quality characteristics.

Second, since the light incident from the end is induced and transmitted over a long length, there is an economically advantageous effect of reducing the LED consumption and significantly reducing the material and energy costs.

Third, by forming the width of the reflective tape provided on the bottom of the line type light diverging means or the size of the V groove in proportion to the light receiving distance or by maximizing the luminance uniformity over the entire length of the line type light diverging means using the light distribution means. Significantly improves the quality characteristics of LED signs.

Fourth, the line type light emitting means that is easy to bend is continuously connected and wired using the light source housing and the wiring guide, thereby eliminating the lengthwise frame that has been involved in the prior art, and thus freely and compactly embodying complex images or characters. There is this.

Line type LED sign according to the present invention to achieve the above object is

A light source unit including a light emitting diode (LED) as a light source; A light source housing in which the light source unit is installed and fixed to the structure and serves as heat radiating means of the light source unit; And a line-type light-emitting means made of a line-type light guide and having a reflective surface in the longitudinal direction for transmitting and emitting light of the LED incident through the light receiving end.

Line type LED sign according to the present invention having the above configuration,

First, it is easy to implement line-type signage of various shapes by using the line-type light emitting means that the light of the light source incident through one end by using the total internal reflection of the light is guided, transmitted, and diverted on the light guide of the line type. There is a remarkable effect that the glare is prevented and has a visually unique beauty to improve the quality characteristics.

1 is an explanatory diagram of light transmission of a line type light diverging means according to the present invention;

Figure 2 is an installation state of one embodiment according to the invention

Figure 3 is a cross-sectional view of the line type light diverging means of one embodiment according to the present invention

4 is a cross-sectional view taken along the line E-E of FIG.

FIG. 5 is a bottom view of FIG. 3

6 is a cross-sectional view of the line type light diverging means of the embodiment according to the present invention;

7 is a cross-sectional view taken along the line F-F of FIG.

8 is an exploded perspective view showing a light source housing of an embodiment according to the present invention;

9 is a perspective view of the combination of FIG.

10 is a longitudinal cross-sectional view of FIG.

11 is a cross-sectional view showing the configuration of a light source housing according to an embodiment of the present invention.

12 is an exploded cross-sectional view showing the configuration of a light source housing according to an embodiment of the present invention.

13 is a coupling diagram of FIG.

14 is a cross-sectional view taken along the line G-G of FIG.

15 is a cross-sectional view taken along the line H-H of FIG.

16 is a cross-sectional view showing the configuration of a light source housing of an embodiment according to the present invention;

17 is a cross-sectional view showing the configuration of an embodiment according to the present invention

18 is an enlarged view of part A, part B, and part C of FIG.

19 is a cross-sectional view showing the configuration of the prior art

Hereinafter, an embodiment of the line type LED sign of the present invention will be described in more detail with reference to the accompanying drawings.

Light causes reflection and refraction at the interface between two optically dense media due to the nature of minimizing the path, and the reflectance increases as the optical difference between the two materials differs and the angle of incidence increases. .

When the light enters the dense medium from the dense medium, the angle of incidence becomes large, and the angle of refraction becomes 90 ° when the angle is reached. This means that the refraction light proceeds along the boundary surface. The incident angle is called the critical angle. When light enters at an angle greater than the critical angle, the internal reflection is reflected 100% from the boundary surface. It uses internal reflection.

The present invention is constructed by using the above-described total internal reflection of light, and as shown in FIG. 1, the line-type light in which the light of the LED 11 received through one end is guided, transmitted and emitted through the line-type light guide. By using the diverging means 30 is to implement a line type sign having any shape.

As shown in FIG. 2 to FIG. 10, the line type LED sign according to the present invention includes a light source unit 10 including a light emitting diode (LED) 11 as a light source, and the light source unit 10 includes: It is installed and fixed to the structure and consisting of a light source housing and a line-type light guide that also serves as a heat dissipation means of the light source unit 10 and half in the longitudinal direction to transmit and diverge the light of the LED 11 incident through the light receiving end 31 It is preferred that the slope 32 is configured to include a line-type light diverging means (30).

Here, the line-type light diverging means 30 is formed of a light-transmitting body having a circular or polygonal bending of the cross section, the reflective surface 32 is a reflective tape 35 is bonded or V groove 321 or dot printing Alternatively, sanding irregularities are formed, and the reflective tape 35 is preferably made of white or colored color tape (see FIGS. 3 to 7).

The line type light emitting means 30 is preferably made of translucent acrylic, and when the reflective tape 35 is formed of a color tape having a color, the light emitted from the line type light emitting means has the color of the reflective tape. It can emit a variety of colors.

In addition, the line-type light diverging means 30 is the reflecting tape 35 or V-groove 321 or dot printing or sanding irregularities provided on the reflective surface 32 so that the luminance is uniform over the entire length of the light receiving end ( 31, it is preferred to gradually expand in width or size as it is further away from it.

The light incident from the light-receiving end 31 is gradually weakened as the distance transmitted is farther, and as the distance from the light-receiving end is longer, the width of the reflective tape 35 or the V-groove 321 of the reflective surface 32 is increased. By gradually expanding the amount of light reflected from the reflecting surface 32, the illuminance becomes uniform over the entire length of the line type light diverging means 30.

In addition, the line type light diverging means 30 is a reflective tape at the opposite end of the light receiving end 31 when another line type light diverging means 30 is not connected to the opposite end of the light receiving end 31. 35) is attached.

In addition, the line type light emitting means 30 is provided with a colored color filter 70 in the light receiving end 31 to enable the light incident through the light receiving end to be implemented in various arbitrary colors.

In addition, the light source unit 10 is preferably provided with a power driver 15 for supplying and controlling power to the LED (11).

The light source housing 20 of the embodiment according to the present invention includes an internal space S formed for installing the power driving unit 15 and the wire L, a light source installation unit 21 formed on at least one side wall, and a structure. It is preferable to include a base portion 25 formed on any one side to be fixed (see FIGS. 8 to 10).

In addition, the support block 40 is coupled to the light source mounting portion 21 and formed with an insertion groove 41 corresponding to the cross section of the line type light diverging means 30 for fixing the line type light diverging means 30. Preferably, the light source housing 20 is further provided.

In addition, the heat dissipation fins 23 are formed on the outer surface of the light source housing 20, and the wire through holes 24 and the like are formed.

The light source housing 20A of the embodiment according to the present invention, as shown in FIGS. 11 to 16, is emitted from the light source installation unit 21 and one LED 11 on which one LED 11 is installed. Two or more guide grooves (26) formed at a predetermined angle with respect to the light source mounting portion (21) and inserted into the line type light diverging means (30) to guide light to two or more line type light diverging means (30). ) Is configured to include.

Here, the reflective surface 51 is inclined at a set angle with respect to the LED 11 in order to distribute the light of the LED 11 to the line type light-emitting means 30 is installed in the guide groove 26 1 It is preferable that the light distribution means 50 having more than one surface is installed in the space 27 in front of the light source installation portion of the light source housing (see FIGS. 12 to 16).

The light distribution means 50 is formed in a variety of configurations of the reflecting surface 51 according to the quantity and arrangement angle of the line type light diverging means 30 coupled to the light source housing 20A.

For example, as shown in FIG. 12 and the like, when the line-type light diverging means 30 of two lines are coupled to the light source housing 20A in a straight line to divide the light of the LED, the light distribution means ( 50 has two reflecting surfaces 51 forming a 45 ° slope, while one side of the two reflecting surfaces 51 is formed as a shared side 53 and the shared side 53 is half divided in front of the LED 11. It is placed at the boundary line.

The light distribution means 50 is formed entirely of a reflector, or a reflective material is coated on the reflective surface 51 or a reflective sheet is formed.

In the continuous arrangement of the line-type light-emitting means 30, the length of the line-type light-emitting means 30 is long and when the light of one LED 11 is incident to one side and transmitted over the entire length, the reflective tape Even if the width of (35) or the adjustment of the size of the V-groove 321 is used, the luminance decreases in the middle section in length as the transmission length becomes longer.

In the case of the light source housing 20A in which the guide grooves 26 are formed, one light of the LEDs 11 is configured to be distributed and incident to, for example, two line-type light emitting means 30 of two lines. As described above, when it is continuously excreted, one half of the amount of one LED is incident from the light receiving ends 31 on both sides when one line-type light-emitting means 30 is used as a reference. The amount of light is incident.

In this way, when one LED amount is incident on one line type light diverging means 30, the light is distributed and incident in opposite directions so that the transmission length of the light is shortened by half and the front of the line type light diverging means 30 is reduced. The luminance uniformity is significantly improved over the length.

LED (11) One light is usually distributed in two lines, the direction of distribution of light varies depending on the configuration of the sign, for example 180 °, 90 °, 30 °, etc. This is a guide groove formed in the light source housing ( 26) and light distribution means (50).

When the direction of distribution of light is not large, such as 30 °, as shown in FIG. 11, the partition wall between two guide grooves 26 formed in the light source housing 29A has a triangle with a vertex angle of 30 ° in cross section. And the light distribution means 50 is unnecessary because the guide grooves 26 are formed to be inclined at half the front of the LED 11 and the light of the LED is directly incident at a 15 ° tilt.

In addition, when the direction of light distribution induction is 180 °, as shown in FIGS. 12 to 15, the two reflecting surfaces 51 are formed at a 45 ° tilt, and one shared side of the two reflecting surfaces 51 is an LED 11. By arranging at the boundary line that divides the front half of), it is induced by being reflected and refracted by one half of the quantity of one LED in both directions, and in the case of 90 °, one line type light is divided into half the front of the LED as shown in FIG. 16. The diverging means 30a is arranged in a straight line with respect to the LED's light irradiation direction so that one half of the LED's one light quantity is directly incident, and the other line type light emitting means 30b has the remaining half of the LED's light quantity. Reflective refraction is induced through the reflecting surface 51 of the distributing means.

In addition, by varying the configuration of the light distribution means 50, it is also possible to distribute the light of one LED (11) to the line-type light-emitting means 30 or more than three lines.

In addition, the

light source housing

20, 20A is provided with a waterproof packing member 61 for maintaining watertightness inside the light source unit 10 is installed, the colorless or at the entrance of the light source installation unit 21 is irradiated with LED light Colored waterproof floodlight cover 63 is preferably installed.

The waterproof packing member 61 includes an O-ring and a silicone waterproof cap, and the waterproof floodlight cover 63 is supplied when it is formed in color with the function of protecting the light source by blocking the entrance of the light source installation unit 21. The LED light can be made in various colors.

The line type light emitting means 30 is preferably connected continuously using the

light source housing

20, 20A or the

light source housing

20, 20A and the wiring guide 80 (see FIGS. 2 and 18). .

The

light source housings

20 and 20A have a form in which the line type light diverging means 30 are connected in a straight line to each other, a form connected in a curved line, and a line type light divergence in three directions of the light source housing 20. The line-type light diverging means 30 is formed to be connected at various angles, such as a Y-type (see A of FIG. 18) to which the means 30 are connected.

In addition, the wiring guide 80 is formed by inserting the insertion portion is inserted into the line type light diverging means 30, the two ends of the line-type light diverging means 30 of the line is fixed or jointed (B of FIG. 18). Reference) serves to hold the line-type light-emitting means 30 to be curved in a curve (see C of FIG. 18).

That is, the line-type light-emitting means 30 can be connected to and connected to the light source housing 20 (20A) and the wiring guide 80 as a medium to realize a character or image that emits light in various forms .

In addition, the

light source housings

20 and 20A may be made of metal such as aluminum having excellent thermal conductivity for LED heat dissipation, and the light source installation unit 21 may be formed to closely adhere to the LED mounting PC 13.

It looks at the action state of the line type LED sign according to the present invention having such a configuration.

The line-type light diverging means 30 guides and transmits the light incident through the light receiving end 31 at one end along the longitudinal direction by using the internal electric reflection of the light, and the reflective tape 35 or V of the light transmitted. Light incident below the critical angle in the portion where the groove 321 is formed is emitted to the outside to emit light over the entire length.

The line-type light diverging means 30 can be easily bent in the form of a sign including a curve, and uses a minimum amount of LEDs and energy, thereby significantly reducing manufacturing and maintenance costs.

In addition, since the light of the LED 11 is incident directly through the light-receiving end of one side instead of being directly diverged forward, the glare is prevented.

In addition, the length sign that was involved in the prior art in the LED sign is excluded, thereby significantly reducing the manufacturing cost and at the same time facilitate the installation.

In addition, as the size of the reflective tape 35 or the V-groove 321 moves away from the light receiving end 31, the reflective tape 35 is gradually expanded to increase the amount of reflected light, thereby achieving uniform luminance.

In addition, in the continuous arrangement of the line-type light-emitting means 30, the light is transmitted by distributing one LED by using the light-distributing means 50 to transmit the light from both ends of the line-type light-emitting means 30. By half, the luminance uniformity over the entire length of the line type light diverging means is significantly improved.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be apparent to those who have knowledge.

Claims

A light source unit 10 including a light emitting diode (LED) 11 as a light source;

A light source housing in which the light source unit 10 is installed and fixed to a structure and serves as a heat radiating means of the light source unit 10; And

And a line type light diverging means 30 formed of a line type light guide and having a reflective surface 32 in a longitudinal direction for transmitting and emitting light of the LED 11 incident through the light receiving end 31. Line type LED sign characterized in that the configuration.
The method according to claim 1,

The line type light-emitting means 30 is formed of a light-transmitting body having a circular or polygonal cross section, and the reflective surface 32 is a reflective tape 35 is bonded or V groove 321 or dot printing or sanding. Irregularities are formed,

The reflective tape 35 is a line type LED sign, characterized in that the color tape of white or colored.
The method according to claim 1 or 2,

The line type light diverging means 30 is provided from the reflecting tape 35 or V groove 321 or dot printing or sanding irregularities provided on the reflecting surface 32 such that the luminance is uniform over the entire length. Line type LED sign characterized in that gradually expand the width or size as the distance.
The method according to claim 1 or 2,

The line type light emitting means 30 is a line type LED sign, characterized in that the color filter 70 is provided in the light receiving end (31).
The method according to claim 1,

The light source housing 20 is formed on either side to be fixed to the internal space (S) formed for the installation of the power driver 15 and the wire (L), the light source installation portion 21 formed on at least one side wall and the structure. Line type LED sign characterized in that it comprises a base portion 25 that is configured.
The method according to claim 5,

The light source housing has a support block 40 coupled to the light source installation unit 21 and having an insertion groove 41 corresponding to the cross section of the line type light diverging means 30 for fixing the line type light diverging means 30. Line type LED sign characterized in that it is provided in addition to (20).
The method according to claim 1,

The light source housing 20A is configured to induce distribution of light emitted from the light source installation unit 21 and one LED 11 to which one LED 11 is installed to two or more line type light emitting means 30. Line type LED sign, characterized in that it comprises a two or more guide grooves 26 are formed at a set angle with respect to the light source installation portion 21 and the line type light diverging means 30 is inserted.
The method according to claim 7,

At least one reflective surface 51 inclined at a set angle with respect to the LED 11 in order to distribute the light of the LED 11 to the line type light diverging means 30 installed in the guide groove 26. Line-type LED sign, characterized in that the light distribution means 50 is provided in the light source installation portion front space 27 of the light source housing.
The method according to claim 5 or 7,

The light source housing is provided with a waterproof packing member 61 for maintaining the watertightness therein, and a colorless or colored waterproof floodlight cover 63 is installed at the entrance of the light source installation part 21 to which the LED light is irradiated. Type LED sign.
The method according to claim 1,

The line type light emitting means 30 is a line type LED sign, characterized in that connected continuously using the light source housing or the light source housing and the wiring guide (80).