KR200169270Y1 - Traffic signal light by using optical fiber - Google Patents

Abstract

The present invention relates to a traffic light using an optical fiber, in detail, using a light source (light source) having a low power consumption and high brightness luminous power, and an optical fiber (or optical cable) for transmitting the light source to the display unit such as traffic signals It is an object of the present invention to provide a semi-permanent traffic signal with low cost and high efficiency that can obtain high luminance even with low power consumption compared to the conventional traffic signal lamp having high cost and low efficiency lighting means (incandescent bulb) by constructing a traffic light.

Description

Traffic signal light by using optical fiber}

The present invention relates to a traffic signal using an optical fiber, and in detail, uses a total reflection principle of a light source having a low luminance and high luminance and a flexible optical fiber (or optical cable). Therefore, the traffic lights turn on, off, and flash, so that a semi-permanent life of high-traffic traffic signals can be obtained with less power consumption than existing advertisements having low efficiency and high cost lighting means.

In general, existing traffic lights requiring lighting means display a traffic signal using a high-cost, low-efficiency lighting source, for example, a light bulb with a very high power consumption that can be distinguished from a distance, resulting in very high power consumption and cost. Its high and relatively short lifespan makes the bulb replacement cycle relatively short.

In addition, there is a risk of short circuit or electric shock due to the use of AC power over 220V, and there is a difference depending on the degree of humidity or snow or rain, but there is a power loss caused by a short circuit, and a light bulb that is relatively weak against shock is damaged immediately. Since there is a problem that leads to failure, there is an increase in cost because heat-resistant cover is installed in front of the bulb.

On the other hand, the optical fiber transmits the incident light efficiently to the desired destination while repeating total reflection or zigzag as is well known, and even though the flexible fiber bends or bends, the optical fiber proceeds in the fiber without loss. There is this.

Therefore, the present invention provides a high-cost and low-efficiency lighting by constructing a traffic signal lamp using a light source having a low luminous power and high luminance, and an optical fiber (or an optical cable) that transmits the light source to a display unit such as a traffic signal lamp. It is an object of the present invention to provide a semi-permanent traffic signal of low cost and high efficiency that can achieve high brightness with less power consumption than a conventional traffic light having a means.

The present invention can dramatically change the existing traffic lights using the total reflection principle of the optical fiber. In particular, instead of the high-cost, low-efficiency bulbs used in existing traffic lights, it is possible to substitute semi-permanent, high-brightness light emitting diodes with low power consumption, thereby obtaining the maximum traffic signal effect.

On the other hand, the physical properties of the optical fiber include a clad of low refractive index on a high refractive index core to gradually reduce the refractive index from the center to the step index type in which the light absorbing jacket is accommodated. There is a graded index (distributed index of refraction), which transmits up to about 99.9% of the incoming light to the destination while repeating total reflection at the interface between the core and the clad.

In addition, if the cut surface of the optical fiber is uneven, light rays are scattered and it may not have sufficient effect, so it is more effective to cut it evenly with a sharp blade, or to polish the end surface by moistening the cloth with an abrasive for acrylic resin or pressing the end face on the heated glass surface. In order to cut a large amount of optical fiber at once, use a hot knife to even out the cut surface of the optical fiber.

1-an external perspective view of the present invention.

2-Front view of another embodiment of the present invention.

Figure 3-rear view showing the interior of the present invention.

4-exploded perspective view of a holder of the present invention.

5-An enlarged cross-sectional view of a holder of the present invention.

Figure 6-Cross-sectional view of the use state of the present invention.

7 is a cross-sectional view of another embodiment of the holder portion of the present invention.

8 is a partial cross-sectional view of the display unit of the present invention.

Figure 9-Circuit block diagram of the present invention.

10 is a circuit block diagram of another embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

(2)-traffic light (4)-light source

(6)-Light Source Array (8)-Light Source Fixture

(10)-Optical Fiber (10a) (10b)-Optical Fiber Cutting Surface

(12)-Binder Ring (14) (14a)-Holder

(16)-Traffic Light Case (16a)-Sun Visor

(18) (18a)-indication (20)-protrusion

(22) (24) (24a)-Insertion Hole (26)-Joint

(28)-Expansion Inclined Surface (30)-Piecehole

(32) (38)-Piece (34)-Screw

(36)-Through Hole (40)-Insulated Board

(42) (44)-Light Source Terminals (46) (48)-Feed Wires

(50)-Handle (52)-Hole

(54)-Space (56)-Lens

(58)-Power Source (60)-Rectification Unit

(62) (72)-Blinker (64)-Solar Cell

(66)-control unit (68)-battery

(70)-Traffic Signal Controller

Hereinafter, the preferred technical configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

Optical fiber or optical cable, which is an element of the present invention, transmits incident light efficiently to a desired destination while repeating total reflection or zigzag as is well known, and even if a flexible fiber is bent, There is a characteristic of transmitting to the front end (end) by going in the fiber without this loss.

1 is an external perspective view of the traffic light 2 of the present invention, such as a signal immediately before the sunshade plate 16a is fixed to the front of the case 16, a stop signal display unit, a left turn signal display unit, and a yellow warning display unit. Various display portions 18 and 18a are provided, and the front end portion (end portion) 10b of the optical fiber 10 is fitted in the hole of the display portion to display various traffic signals with light.

Meanwhile, the traffic light 2 of the present invention includes a light source array 6 in which one or more light sources 4 are installed, a light source fixture 8 in which the light source array 6 is fixed, and various strands, as shown in FIG. 4. Binding ring 12 for coupling the cut surface 10a of the optical fiber 10 to a bundle, a holder 14 for coupling the light source 4 and the binding ring 12 to face each other, and the optical fiber 10 to be dispersed The light emitted from the light source 4 is fixed to the display portions 18 and 18a of the traffic light 16 at appropriate intervals so that the light emitted from the light source 4 is fixed to the outside of the display portions 18 and 18a as shown in FIG. It is configured to be transmitted to a slightly protruding optical fiber cut surface 10b.

Although the light source 4 uses a high-performance light emitting diode having a high luminance of 8,000 to 20,000 candelas (mcd) or the like despite the low power consumption of several tens to hundreds of kilowatts, the display unit 18 (18a) has sufficient luminance. It is preferable to make light emission in (illuminance).

8 is a cross-sectional view of the display unit 18 (18a) showing an example of the display unit, the front panel 11 and the cellophane 13 of the color corresponding to the traffic light display unit in a transparent state, for example, the entire portion of the straight display unit and left turn The green cellophane is bonded to the arrow part of the display unit, the yellow cellophane is bonded to the entire part of the warning light, and the back plate 15 is bonded to the back of the cellophane 13, and then the through hole 19 of the case 16 is formed. The display portions 18 and 18a are formed by bonding the inner back surface with an adhesive or the like.

In the above, the front plate 11 and the rear plate 15 is formed to have a somewhat thicker thickness so as to firmly support the end portion 10b of the optical fiber with sufficient durability.

In the above, the cellophane paper 13 and the back plate 15 are deleted, and instead, the front plate 11 made of transparent material is formed to be a little thicker with a thickness of 0.3 mm to 10 mm, but the color corresponding to the traffic light display part, that is, the traffic light display part. Mix the pigments of the corresponding colors so that in the event of a failure the traffic lights can be distinguished.

In the display portions 18 and 18a of the traffic light 2, holes 52 to which the optical fibers 10 are coupled are formed at appropriate intervals to insert the end portions 10b of the optical fibers 10 and then fixed with an adhesive or the like. Fixing the optical fiber 10 using the insertion means or the pressing means of the.

In this case, since the distal end 10b of the optical fiber 10, which is a light expression portion, is directly installed on the display portions 18 and 18a, the bulb protection cover is unnecessary as in the conventional traffic light.

The number of optical fibers 10 to be inserted into the hole 52 in the present invention can be adjusted from 1 to 20 depending on the size of the display portion 18 (18a), the diameter of the optical fiber or the illumination intensity required, of course, necessary In this case, dot light emission of 20 or more units can be achieved.

In addition, since the cut surface 10b of the optical fiber slightly protrudes out of the display portions 18 and 18a as shown in FIG. 1, even if the end portion of the optical fiber 10 is broken, it has no effect on the light source 4. There is no abnormality at all, and if necessary, the optical fiber 10 of the broken portion may be pulled out of the display portion 18 and 18a by the required length.

In the present invention, the distal end portion 10b of the optical fiber 10 is installed around the edges of the display portions 18 and 18a as shown in FIG. 1 or at even intervals over the entire portions of the display portions 18 and 18a as shown in FIG. It can be densely installed to increase the illuminance. In some cases, one or two lines of end portions 10b of the optical fiber 10 are provided at even intervals along the center line of the display portions 18 and 18a so that the traffic signal is turned off or on. Or flashing will be achieved.

On the bottom surface of the holder 14 to which the light source 4 and the engagement ring 12 are coupled, a protrusion 20 protruding forward and rearward is formed to be firmly glued to the case of the traffic light 16 or to a separate supporting means. The insertion hole 22 and the binding ring 12 to which the light source 4 is coupled are formed before and after the body portion of the holder 14, respectively.

As shown in FIG. 5, the stepping holes 26 are formed in the insertion holes 22 and 24 so that the engagement ring 12 and the insertion hole 24 have a larger inner diameter than the light source 4 insertion hole 22. Preventing excessive insertion of the binding ring 12 and preventing light blocking due to the thickness of the binding ring 12.

A piece hole 30 is formed on the insertion hole 24 of the holder, respectively, so that the binding ring 12 coupled to the holder 32 can be fastened and fixed to the piece 32 so that the flow or separation and separation of the binding ring 12 can be prevented. The screw holes 34 are formed on both sides of the holders 14 and 14a, and through holes 36 are formed on both sides of the light source fixture 8, and the pieces 38 are used to form the light source fixture 8 and the holder. (14) Make sure that (14a) can be fixed.

7 is a cross-sectional view of another embodiment of the present invention insertion hole 24a, in which case the number of optical fibers 10 or the outer diameter of the binding ring 12 is large while the outer diameter of the light source 4 is small, the binding ring insertion hole ( A light source insertion hole 22a having an enlarged inclined surface 28 in the 24) direction is formed to extend the number of uses of the optical fiber 10 or the unit size of the optical fiber.

In the present invention, six light sources 4 and insertion holes 22, 24, and 24a installed in the light source array 6 are illustrated, but the expression capacity (size) of the display units 18 and 18a is required. It may be formed in the number of more or less depending on the brightness, and of course, only one light source 4 may be provided.

The light source array 6 includes two terminals 42 and 44 of the light source 4 by sandwiching a plurality of light sources 4 on the insulating substrate 40 at the same interval as the insertion hole 22 as shown in FIGS. 5 to 7. Is projected to the back side of the insulating substrate 40, and then connected in parallel to the power supply lines 46 and 48 to form a light source fixture 8 in which a plurality of light sources 4 are simultaneously turned on, off, or flashing.

The handle portion 50 protruding from the upper center portion of the light source fixture 8 is formed to be easy to grip when separating the light source fixture 8 from the holder (4) (4a) (54). It is a space for wiring 4).

In the present invention, the holders 14 and 14a may be made of a synthetic resin material which is easy to be molded or processed by a metal material such as light aluminum, and the inner circumferential surface of the insertion holes 24 and 24a may be mirror-processed or board-shaped. It is desirable to improve the reflectance or to apply a material having good reflectance to improve the reflectance.

In addition, a lens 56 such as a concave lens, a convex lens, or a crown lens is inserted between the incident side cut surface 10a of the optical fiber 10 and the light source 4, thereby increasing the light condensing capability and specially. If there is a chromatic aberration, it is desirable to eliminate the chromatic aberration by using a crown lens.

In addition, when the concave lens has a wide-angle effect, the optical fiber binding ring 12 can be enlarged, so that the number of optical fibers can be increased by increasing the optical fiber focusing rate, thereby reducing the number of light sources 4 and the power consumption accordingly. It can also reduce the cost and extend the life of the product.

In the present invention, the light source 4 using a high brightness light emitting diode or the like is satisfied if the driving power is several V (about 2 V) before and after, so that the driving power is supplied from a controller for traffic signal not shown or a separate commercial AC power source (AC). 220V) can be supplied.

When a commercial AC power supply (AC 220V) is supplied, as shown in FIG. 9, the power supply unit 58 and the power supply voltage required by the light source 4 as the power source 58 and the driving power level of several tens to several hundreds of kilowatts. The rectifier 60 for stepping down and rectifying, the light source 4 emitting light with high brightness by the rectified DC power, and turning off and on under the control of the traffic signal controller 70, and the light of the light source 4. It is composed of an optical fiber 10 for transmitting without loss to the display unit 18 (18a) of the traffic light (2).

In the above, the flashing part 62 is provided between the light source 4 and the rectifying part 60 so that the light source 4 blinks, thereby making it possible to construct a flashing signal lamp in which the display parts 18 and 18a periodically flash. .

It is preferable to delete the power supply unit 58 and the rectifying unit 60 in the above, and to receive the driving power directly from the traffic signal controller 70 instead.

In addition, the flashing signal lamps installed in traffic signal areas or intersections may be simply flashed by using a solar cell power source instead of the commercial AC power as described above.

10 is a configuration diagram of a traffic signal capable of driving a traffic light using a solar cell and a rechargeable battery. The solar cell 64 converts sunlight and ambient light into electromotive force, and a controller 66 having a charging unit and an illuminance switch function. ), The rechargeable battery 68 for charging the electromotive force generated from the solar cell 64, and the light emitted by the charging power of the rechargeable battery 68 (or the light emitted by the charging power to the light of the traffic signal controller 70 A light source 4 that is turned on and off by control, and an optical fiber 10 that transmits and emits light emitted from the light source 4 to the display units 18 and 18a of the traffic light 2 without loss.

The solar cell 64 is installed on the upper surface of the case 16 of the traffic light (2) that the sunlight is best incident, as shown in Figure 3, the control unit 66 having a built-in charging circuit inside the case 16 And the holders 14 and 14a to which the light source 4 and the optical fiber 10 are coupled, and the rechargeable battery 62 may be provided at appropriate positions, respectively.

In the daytime, the charge generated by the solar cell 64 is prevented from being charged and overcharged to the rechargeable battery 68 by the controller 66 having the charging device, and the power source of the rechargeable battery 68 is the light source 4. ), Illumination of the display units 18 and 18a is realized.

In the present invention, the light emitting diode used as an example of the light source 4 is displayed in the color corresponding to the traffic light by using a light emitting diode emitting a color corresponding to the color of a traffic light, for example, red, green, and yellow. If you can.

Of course, in the present invention by combining the power supply by the commercial AC power (AC 220V) and the solar cell 64 in combination with Figure 9 and 10 can be prepared in case of power failure.

As described above, the present invention uses a light source having a high luminous intensity (8,000 to 20,000 mcd) and a fiber optic (or an optical cable) to illuminate the display part using a light source having a low power consumption of 2 V and several tens of kilowatts. Therefore, it is possible to achieve a high luminance traffic signal with less power consumption than a high cost, low efficiency conventional traffic light using a light bulb and a cover.

In addition, it uses low power and uses optical fiber (or optical cable), so there is no risk of short circuit or electric shock even if it is humid or rainy, and it can be used in a humid environment. There is almost no high-performance and energy-efficient effect.

In addition, the conventional traffic signal light leads to a failure immediately when the bulb is broken, but the present invention has an effect that does not cause any abnormality in the transmission of light even if the end of the optical fiber is damaged because the end of the optical fiber which is the light emitting portion is separated from the light source.

In addition, the conventional traffic light using a light bulb is weak to impact and short in life, and since the distal end 10b of the optical fiber 10, which is a light expression part, is installed directly on the display unit 18 and 18a, the bulb protection cover is unnecessary. The light source according to the present invention is semi-permanent because the semiconductor light emitting part is molded and is not exposed to the outside, which is strong against external impact.

In addition, a traffic signal lamp equipped with a solar cell and a charging means can be used even in an area without electricity, and can be used without interruption during power outages. .

Claims (12)

A bundle of light source arrays 6 on which one or more light sources 4 are installed, a light source fixture 8 on which the light source arrays 6 are fixed, and a cut surface 10a of several fibers 10 are combined in one bundle. A binding ring 12, a holder 14 for coupling the light source 4 and the binding ring 12 to face each other, and an end portion 10b of the optical fiber are formed on the display portions 18 and 18a of the traffic light 2. A traffic light using an optical fiber characterized in that the display portion (18) (18a) of the traffic light (2) is illuminated by light emitted from the light source (4) by being fitted into one hole (52). 2. A traffic light using an optical fiber according to claim 1, characterized in that the light source (4) is a light emitting diode having a high luminance of 8,000 to 20,000 candelas (mcd) with a voltage of several V and a current of several tens to hundreds of kilowatts. The light source (4) insertion hole 22 and the binding ring (12) form the insertion hole (24), respectively, on both sides of the body portion of the holder (14) (14a). (12) A traffic light using an optical fiber, characterized in that the insertion hole 24 has a larger inner diameter than the light source 4 insertion hole 22. [4] The method of claim 3, wherein the light source insertion hole 22a having the inclined surface 28 is expanded in the direction of the binding ring insertion hole 24 so as to extend the number of uses of the optical fiber 10 or the unit size of the optical fiber. Traffic light using the optical fiber characterized in that. 4. A traffic light using an optical fiber according to claim 3, characterized in that the light source (4) and the insertion hole (22) (24) (24a) are formed in one or more numbers. 3. The number of optical fibers 10 to be inserted into the holes of the display portions 18 and 18a of the traffic light 2 according to claim 1 or 2 is characterized in that the size or size of the display portions 18 and 18a is required. Traffic light using optical fiber, characterized in that one or more according to the illumination light. 3. A traffic light using an optical fiber according to claim 1 or 2, wherein a lens (56) is inserted between the incident side cutting surface (10a) of the optical fiber (10) and the light source (4). 3. The power supply unit according to claim 1 or 2, wherein the power supply unit 58 to which a commercial AC power supply (AC 220V) is supplied, and the power supply unit requires several V and several tens to several hundreds of power. The rectifying unit 60 for stepping down and rectifying, the light source 4 emitting light with high brightness by the rectified DC power, and turning off and on under the control of the traffic signal controller 70, and the light of the light source 4 ( Traffic light using an optical fiber, characterized in that consisting of the optical fiber 10 for transmitting the light to the display unit (18) (18a) of the advertisement. The solar cell 64 according to claim 1 or 2, wherein the solar cell 64 converts sunlight and ambient light into electromotive force, a control unit 66 having a charging unit and an illuminance switch function, and electromotive force generated from the solar cell 64. The rechargeable battery 68 to charge, the light source 4 that emits light with the charging power of the rechargeable battery 68, and the optical fiber 10 that transmits and expresses the light emitted from the light source 4 to the display units 18 and 18a without loss. Traffic light using optical fiber, characterized in that consisting of. The case 16 according to claim 1 or 2, wherein the front plate 11 and the cellophane paper 13 of the color corresponding to the traffic light display unit and the back plate 15 are combined with each other, and then the through hole 19 is formed. A traffic light using an optical fiber, characterized in that the display portion (18) (18a) is formed by bonding the inner back of the display with an adhesive or the like. The traffic light using an optical fiber according to claim 10, wherein the cellophane paper and the back plate are removed and the front plate is made of a material of a color corresponding to the traffic light display. [9] The traffic signal lamp using the optical fiber according to claim 8, wherein the power supply unit 58 and the rectifying unit 60 are deleted from the above, and instead, the driving signal for turning on and off can be directly supplied from the traffic signal controller 70. .