JPH09152840A - Illuminator for display part of sign, symbol, picture, and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low power and long life light source and an illuminator capable of emitting many colors, in a display part of a display element for various signs drawn on a road guidance sign, a car barrier installed in a park, etc., or on curbstones or object. SOLUTION: An end part of optical fibers 4 of a light guiding part reflecting a display element of a display part 3 held by a block 6 and two or more light- emitting diodes 5 of different colors of light emission fixed by a seal body 7 are installed within a light emitting body case 1 by facing them each other with a lens member 9 in-between, and an illuminator is constituted which is a display part for a sign making the light-emitting diodes 5 of different colors of light emission emit one or more colors as necessary, a symbol, and a picture, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road sign board,
It is applied to store signs, paintings on the walls and spaces of buildings to moisturize the cityscape, or vehicle intrusion prevention fences, curbs or objects installed in parks, etc. The present invention relates to a lighting device that displays a display element of a display unit such as a sign, a symbol, or a picture.

[0002]

2. Description of the Related Art Illumination of displays such as paintings, signs and symbols that have been conventionally drawn on the walls and spaces of buildings in order to enrich the cityscape from the outside, such as beam bulbs and metal highland lamps. A light-up method is used in which light is diffused and projected onto a display unit.

Further, when a sign or symbol provided on a fence for preventing vehicle intrusion on the road or a curb, or a sign composed of a pattern of an object or a picture is displayed as an image, a halogen lamp or a xenon built in the display portion. A method of displaying an image by projecting a light source of an illumination device using a lamp or the like as a light source is adopted.

[0004]

The illumination of the above-mentioned light-up type display portion consumes a large amount of power, and the display element such as a sign of the display portion is colored.
The display element itself does not emit light, only the display portion is illuminated, and it is not interesting.

On the other hand, there is an illumination device in which a light emitting diode (LED) as a display element of a display section and a halogen lamp or a xenon discharge tube are combined as a light source. Since the halogen lamp and the xenon discharge tube of this lighting device generate a large amount of heat, the light source section needs to be widely opened for heat dissipation. In addition, LEDs operate at low voltage and low current, have high-speed response, and have high reliability and long life,
Since the characters and figures are displayed using only the color of the light source, there is still the problem that the sign is uninteresting.

[0006]

SUMMARY OF THE INVENTION The present invention provides a lighting device capable of displaying a sign, a symbol, a picture, etc., which is composed of a display element or an image display element capable of emitting light of low power and long life and multicolor emission. In order to do so, the configuration is as follows.

That is, a light guide member for displaying a display element composed of characters and figures on the display unit is an optical fiber, and a light source of the optical fiber is a light emitting diode (LED). It is configured to.

Further, one end of an optical fiber which is a light guide member for displaying a display element composed of characters and figures on the display section,
This is an illumination device for a display unit for signs, symbols, pictures, etc., in which a lens member is interposed between the optical fiber LED and the LED.

Further, the lens member is an illuminating device for a display portion for signs, symbols, pictures, etc., which is made of a transparent and colorless epoxy resin having a light transmitting property.

The lens member is an illuminating device for a display portion for signs, symbols, pictures, etc., which is made of a transparent and transparent epoxy resin.

The above-mentioned lens member is an illuminating device for a display portion for signs, symbols, pictures and the like, which is formed of a colored and transparent epoxy resin having a light transmitting property and a light diffusing effect.

Further, the characters held by the fixed block
One end of an optical fiber, which is a light guide member for a display part such as a figure, and a plurality of Ls with different emission colors held by a sealing body.
The ED is provided so as to face the inside of the light emitter case via the lens member, and the ED is an illumination device for a display portion such as a sign, a symbol, or a picture that appropriately emits one or more LEDs having different emission colors. .

Further, the power source of the LED is a solar cell light emitting unit and is an illuminating device for a display portion for signs, symbols, pictures and the like.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an illumination device for a display unit for signs, symbols, pictures, etc. according to the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of a main part of the illuminating device of the present invention. Reference numeral 1 denotes a luminous body case, in which a display element (not shown) such as a sign, a symbol, a picture, etc. A light emitting diode (LED) 5 as a light source of the optical fiber 4 which is a light guide member is provided with a tip portion of an optical fiber 4 which conducts light toward the display unit 3 so as to pass through the through hole 2 of the luminous body case 1. It is provided inside so as to face the tip surface 4a of the optical fiber 4. One end 4b of the optical fiber 4 has an LED 5
It is held by the fixed block 6 so as to hold the optical axis of
The fixing block 6 is attached to the one end portion 1a of the luminous body case 1.
To be integrated with. On the other hand, the LED 5 provided so as to face the front end surface of the optical fiber 4 is supported by a sealing body 7 so as to hold the optical axis of the optical fiber 4, and the sealing body 7 is attached to the other end of the light emitting body case 1. 1b, and the inside of the light emitter case 1 is hermetically sealed. In the figure, reference numeral 8 is a power cord, and a solar cell is used as the power source of the LED 5, but the present invention is not limited to this, and a commercial power source may be used.

FIG. 2 shows another embodiment,
In the lighting device shown in FIG. 1, the optical fiber 4 facing each other
A lens 9 having a light transmitting property and a light diffusing property is interposed between the LED 5 and the LED 5. The lens 9 is made of a colorless and transparent epoxy resin or a colored and transparent epoxy resin.

FIG. 3 shows another embodiment,
In the embodiment shown in FIG. 2, a plurality of LEDs 5 which are the light sources of the optical fiber 4 are provided so as to face the optical fiber 4, and the LED groups have different colors. For example, as shown in FIG. LED5 that individually emits red (R), yellow (Y), and blue (B)
To be used. 2 to 4, parts and components corresponding to those of the first embodiment of the invention shown in FIG. 1 are designated by the same reference numerals.

The present invention will be described by way of example. A fixed block 6 of a metal or plastic molded product, in which the one end 4b of an optical fiber 4 in which the one end 4b is bundled by a cylindrical body 11, is bored with, for example, about φ6 to φ20 is formed. The end face 4a of the optical fiber 4 is finished to be smooth by inserting and fixing it into the hole. The fixing block 6 is attached to the one end surface 1a of the luminous body case 1 so that the end surface 4a of the optical fiber 4 faces the through hole 2 of the luminous body case 1.

The LED 5 serving as the light source of the optical fiber 4 is
The end face 4 of the optical fiber 4 is inserted into the through hole 2 of the luminous body case 1.
The LED 5 is provided by mounting the sealing plate 7 having an insulating property such as silicon resin or epoxy resin on the other end 1b of the light emitter case 1 while being provided so that the optical axis is concentric with a.
By sealing the gap with the power cord 8 of the above, insulation and foreign substances such as water and gas are prevented from entering.

A lens member made of an epoxy resin having a light-transmitting property and a light-diffusing property is provided between the LED 5 and the optical fiber 4 provided so as to face each other in the through-hole 2 of the light-emitting body case 1 so that the optical axes are concentric with each other. 9 is interposed. When a colored and transparent lens member 9 is used, for example, the LE of the light source is used.
When D5 is yellow and the lens member 9 is red, the optical fiber 4 of the display element is orange, and a color that cannot be obtained with the light source color of the LED 5 can be produced.

As shown in FIG. 3, a plurality of LEDs 5 are used, and the solar cells of the power source of the LEDs 5 are independently connected, and a necessary light source is turned on by a switch such as a timer.
The same luminous body case 1 by being configured to
Each color can be emitted inside, and 2 or more types can be turned on simultaneously.
By doing so, mixed colors are possible.

The illumination device for the display unit for signs, symbols, pictures, etc. configured as described above is formed, for example, as a display unit consisting of a picture shown in FIG. 5 or a traffic sign shown in FIG. 7 and 8 is used by being embedded in the cement block 12. In FIG. 5, 4 (G) is green, 4 (R / O) is red and orange, 4 (R / Y) is red and yellow, 4 (W) is white, and 4 (Y / O) is yellow. The emission color of the orange optical fiber is shown.

[0022]

Since the present invention is as described above, the following operational effects can be expected. The power supply is a solar battery, the light source is an LED,
An optical fiber is used for the light emitting part, and a lens member having a light diffusing property is disposed between the light source part and the light emitting part, and these are embedded and cemented with a cement block for use, but no wiring is required. Therefore, construction at parks and construction sites is easy. By integrally sealing the optical fiber, the lens member and the LED, there is no attenuation of light due to dirt. Since a light source with large heat generation such as a halogen lamp or a xenon lamp is not used as a light source, a large open space for heat radiation is not required. In addition, unlike the conventional lamps of low power and light source, there is no concern that the bulb will be burned out, so that frequent bulb replacement work is not required. By coloring the lens member with a translucent pigment, the emission color can be changed and various emission colors can be obtained. That is, many colors can be selected by using a white light LED as the light source and coloring the lens member with a translucent pigment. As a result of these, multicolored patterns for lighting and light emitting devices
Marks can be expressed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of another embodiment of the present invention.

FIG. 3 is a vertical sectional view of another embodiment of the present invention.

FIG. 4 is a diagram showing an arrangement state of light emitting diodes in FIG.

FIG. 5 is a diagram illustrating a display unit according to an embodiment.

FIG. 6 is a perspective view of an illumination device according to an embodiment.

FIG. 7 is a view showing a usage state of the lighting device of the embodiment.

FIG. 8 is a longitudinal sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 luminous body case 1a 1 end surface 1b other end surface 2 through hole 3 display part 4 optical fiber 4a tip surface 4b one end part 5 light emitting diode (LED) 6 fixed block 7 sealing body 8 power cord 9 lens member 10 solar cell 11 cylindrical body 12 Cement block

Claims (7)

[Claims] 1. An illuminating device for a display portion of signs, symbols, pictures, etc., characterized in that an optical fiber is used as a light guide member for displaying a display element of the display portion, and a light source of the optical fiber is a light emitting diode (LED). 2. A sign comprising a lens member interposed between one end of an optical fiber which is a light guide member for displaying a display element of a display unit and a light emitting diode (LED) which is a light source of the optical fiber. -Illumination device for the display of symbols and pictures. 3. The illumination device for a sign / symbol / picture display unit according to claim 2, wherein the lens member is formed of a transparent and colorless epoxy resin. 4. The illumination device for a sign / symbol / picture display unit according to claim 2, wherein the lens member is formed of a transparent epoxy resin having a color. 5. The illuminating device for a display unit for signs, symbols, pictures, etc. according to claim 2, wherein the lens member is formed of a colored and transparent epoxy resin having a light transmitting property and a light diffusing effect. . 6. A lens comprising one end of an optical fiber, which is a light guide member for displaying a display element of a display unit held by a fixed block, and a plurality of light emitting diodes (LED) held by a sealing body and having different emission colors. An illuminating device for a display portion for signs, symbols, pictures, etc., characterized in that it is provided in opposition to the inside of a light-emitting body case via a member, and one or more light-emitting diodes of different emission colors are appropriately emitted. 7. The light emitting diode (L) according to claim 1.
A lighting device for a display unit for signs, symbols, pictures, etc., characterized in that a light emitting power source of (ED) is composed of a solar cell light emitting unit.