JP2006293645A - Signal - Google Patents
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- JP2006293645A JP2006293645A JP2005112812A JP2005112812A JP2006293645A JP 2006293645 A JP2006293645 A JP 2006293645A JP 2005112812 A JP2005112812 A JP 2005112812A JP 2005112812 A JP2005112812 A JP 2005112812A JP 2006293645 A JP2006293645 A JP 2006293645A
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Abstract
Description
本発明は、光源から発光した光が導光板の側部に入射し正面側から出射する信号機に関する。 The present invention relates to a traffic light in which light emitted from a light source enters a side portion of a light guide plate and exits from the front side.
従来より、車両等が通行する路面の上に設置された信号機は、路上を通行する車両に搭乗した運転手や歩行者等がこの信号機の表示灯を視認して交差点や横断歩道等で停車、停止したり発進、歩行を行い交通を行っているが、信号機ではその内部に設けられた光源が発光し全方向に光を出射して表示灯として機能している。例えば、信号機本体の表側に、赤色の発光部、黄色の発光部、青色の発光部が設けられ、信号機の各光源として、白熱電球が使用されており、信号機の正面側全方向を照らすものとして、特許文献１が提案されている。 Conventionally, traffic lights installed on the road surface where vehicles etc. pass are stopped at intersections and pedestrian crossings etc. by drivers and pedestrians who boarded vehicles passing on the road visually checking the indicator lights of these traffic lights, The traffic lights are stopped, started, and walked, but in the traffic lights, the light source provided in the traffic lights emits light in all directions and functions as an indicator lamp. For example, a red light emitting part, a yellow light emitting part, and a blue light emitting part are provided on the front side of the traffic light body, and an incandescent bulb is used as each light source of the traffic light, and illuminates all directions on the front side of the traffic light. Patent Document 1 has been proposed.
しかしながら、上述のような従来の信号機では、信号機内部に光源を設けて発光すれば、信号機の正面側全方向に発光した光が出射され信号機周辺の各位置の車両や歩行者から視認し易くなるが、光が全方向に拡散されるため一方向へ出射される光が少なくなるため弱くなり信号機から離れた位置や昼間の日照の度合い等の環境条件によっては見にくくなる惧れがある。また、信号機の正面側一方向のみを照らすようにすると、信号機周辺の各位置に光が届かなくなり見えにくくなるという問題があった。 However, in the conventional traffic lights as described above, if a light source is provided inside the traffic light to emit light, the light emitted in all directions on the front side of the traffic light is emitted and is easily visible to vehicles and pedestrians at various positions around the traffic light. However, since light is diffused in all directions, the amount of light emitted in one direction is reduced, so that it becomes weak and may be difficult to see depending on environmental conditions such as the position away from the traffic light and the degree of daylight. In addition, if only one direction on the front side of the traffic light is illuminated, there is a problem that light does not reach each position around the traffic light and is difficult to see.
本発明は、このような問題を鑑みてなされたものであり、その目的とするところは、一方向に出射しながらその周囲の一定範囲にも確実に光を出射することにより通行人が点灯表示された光を視認しやすい信号機を提供することを目的とする。 The present invention has been made in view of such a problem, and the object of the present invention is to display a light on a passerby by emitting light in a certain range around it while emitting light in one direction. It is an object to provide a traffic light that allows easy viewing of the emitted light.
上記目的を達成するために、本発明は、背面に複数の凹部が所定の配列パターンに従って設けられた板状の導光板と、前記導光板の側部の所定の箇所に配置された光源と、前記導光板の背面側に設けられた反射板と、を備えたことを特徴とするようにした。 In order to achieve the above object, the present invention provides a plate-shaped light guide plate having a plurality of recesses provided on the back surface in accordance with a predetermined arrangement pattern, a light source disposed at a predetermined position on a side portion of the light guide plate, And a reflector provided on the back side of the light guide plate.
このような発明によれば、導光板の側部の所定の箇所に配置された光源から発光し導光板内部に入射した光が、反射板を反射して信号機正面側の一方向に出射すると共に、導光板の背面に設けられた複数の凹部の斜面を反射して信号機正面側の周囲の一定範囲にも確実に光を出射させることができ、通行人が視認しやすい信号機を実現できる。 According to such an invention, the light emitted from the light source arranged at a predetermined position on the side portion of the light guide plate and incident on the inside of the light guide plate reflects the reflection plate and is emitted in one direction on the front side of the traffic light. By reflecting the slopes of the plurality of recesses provided on the back surface of the light guide plate, it is possible to reliably emit light to a certain range around the front side of the traffic light, thereby realizing a traffic light that is easy for a passer-by to see.
また、上述の信号機において、前記複数の凹部は、前記導光板の背面にマトリクス状に配列されて設けられ、前記光源は、ＬＥＤであることとしても良い。このような構成により、ＬＥＤにより発光され導光板内部に入射した光が、マトリクス状に配列されたそれぞれの凹部を反射して信号機正面側の周囲の一定範囲に一様に光を出射させることができる。 In the traffic light described above, the plurality of recesses may be arranged in a matrix on the back surface of the light guide plate, and the light source may be an LED. With such a configuration, the light emitted from the LED and incident on the inside of the light guide plate is reflected by the respective concave portions arranged in a matrix so that the light is uniformly emitted to a certain range around the front side of the traffic light. it can.
上述の信号機において、前記複数の凹部は、前記導光板の背面に複数の同心円状に配列されて設けられていても良い。このような構成によっても、導光板内部に入射した光が、複数の同心円状に配列されたそれぞれの凹部を反射して信号機正面側の周囲の一定範囲に一様に光を出射させることができる。 In the traffic light described above, the plurality of recesses may be provided on the back surface of the light guide plate in a plurality of concentric arrangements. Even with such a configuration, the light incident on the inside of the light guide plate can be uniformly emitted to a certain range around the front side of the traffic light by reflecting the concave portions arranged in a plurality of concentric circles. .
更に、上述の信号機において、前記光源は、単一の前記導光板の側部の３箇所に配置された赤、黄、緑のそれぞれの光を発光する３つの光源から構成されていることとしても良い。このような構成により、赤、黄、緑のそれぞれの光を発光する３つの光源のそれぞれを発光させることにより、単一の導光板から赤、黄、緑の３色の光を出射できるので、単一の導光板の側部に配置された３つの光源による構成のみで信号機を実現できる。 Further, in the traffic light described above, the light source may be composed of three light sources that emit light of red, yellow, and green disposed at three locations on the side of the single light guide plate. good. With such a configuration, by emitting each of the three light sources that emit light of red, yellow, and green, light of three colors of red, yellow, and green can be emitted from a single light guide plate. A traffic light can be realized only by the configuration of three light sources arranged on the side of a single light guide plate.
更に、上述の信号機において、前記光源は、３つの前記導光板のそれぞれの側部に１つずつ配置された赤、黄、緑のそれぞれの光を発光する３つの光源から構成されていても良い。このような構成により、赤、黄、緑のそれぞれの光を発光する３つの光源を有する信号機においても、信号機正面側の一方向に出射すると共に、信号機正面側の周囲の一定範囲にも確実に光を出射させることができる。 Further, in the traffic light described above, the light source may be composed of three light sources that emit red, yellow, and green light, one on each side of the three light guide plates. . With such a configuration, even in a traffic signal having three light sources that emit red, yellow, and green light, the light is emitted in one direction on the front side of the traffic signal, and is also reliably placed in a certain range around the front side of the traffic signal. Light can be emitted.
以上のように本発明の信号機は、一方向に出射しながらその周囲の一定範囲にも確実に光を出射することにより通行人が点灯表示された光を視認しやすいという利点を有する。 As described above, the traffic light of the present invention has an advantage that a passerby can easily see the light that is lit and displayed by reliably emitting light in a certain range around it while being emitted in one direction.
（構成）
以下、本発明を実施するための最良の形態について図面を用いて詳細に説明する。図１は、本発明に係る信号機１の外観を示す説明図、図２は、信号機１の構成を示す説明図、図３は、信号機１の構成を示す中央断面図である。本発明に係る信号機１は、背面に複数の四角錐状の凹部が設けられた板状の導光板２と、導光板２の側部の所定の箇所に配置された光源３ａ、３ｂ、３ｃと、導光板２の背面に設けられた反射板４と、導光板２および光源３ａ、３ｂ、３ｃの正面を覆うカバー５とを備えて構成されている。
(Constitution)
Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing the appearance of a traffic light 1 according to the present invention, FIG. 2 is an explanatory diagram showing the configuration of the traffic signal 1, and FIG. 3 is a central sectional view showing the configuration of the traffic signal 1. The traffic light 1 according to the present invention includes a plate-shaped light guide plate 2 provided with a plurality of quadrangular pyramid-shaped recesses on the back surface, and light sources 3a, 3b, and 3c arranged at predetermined positions on the side of the light guide plate 2. The reflection plate 4 provided on the back surface of the light guide plate 2 and the cover 5 that covers the front surfaces of the light guide plate 2 and the light sources 3a, 3b, and 3c are configured.
導光板２は、透明な厚板状のアクリル等の素材から成る平面形状が６角形等の矩形状板部材であって、光源３ａ、３ｂ、３ｃが発光するとその光が側部から入射し、導光板２内部を透過して反射板４を反射し信号機１の正面側から出射するようになっている。導光板２の背面には複数の四角錐状の凹部２１が所定の配列パターンに従って設けられている。これらの凹部２１は、導光板２の背面を、傾斜面を成すように削り取り４角錐状に穿設して形成されており、例えば、図４（ｂ）に示すように、導光板２の背面の所定の箇所を４方向から導光板２の背面に対して傾斜させて傾斜面を成すように削り取り、それらの傾斜面が背面から一定の深さの位置でＡの角度で収束するように穿設して形成されている。角度Ａとしては、６０度等が挙げられる。また、図４（ａ）に示すように、導光板２の背面に複数の凹部２１が導光板２の６角形の平面形状に応じてマトリクス状の配列パターンに従って配列されて設けられている。 The light guide plate 2 is a rectangular plate member having a hexagonal planar shape made of a transparent thick plate-like material such as acrylic, and when the light sources 3a, 3b, 3c emit light, the light is incident from the side, The light is transmitted through the inside of the light guide plate 2, reflected from the reflection plate 4, and emitted from the front side of the traffic light 1. A plurality of quadrangular pyramid-shaped recesses 21 are provided on the back surface of the light guide plate 2 according to a predetermined arrangement pattern. These recesses 21 are formed by scraping the back surface of the light guide plate 2 so as to form an inclined surface and drilling it into a quadrangular pyramid shape. For example, as shown in FIG. 4B, the back surface of the light guide plate 2 is formed. The predetermined portions of the light are inclined with respect to the back surface of the light guide plate 2 from four directions so as to form an inclined surface, and the inclined surfaces are drilled so as to converge at an angle A at a certain depth from the back surface. It is formed. Examples of the angle A include 60 degrees. Further, as shown in FIG. 4A, a plurality of recesses 21 are arranged on the back surface of the light guide plate 2 according to the hexagonal plane shape of the light guide plate 2 according to a matrix arrangement pattern.
光源３ａ、３ｂ、３ｃは、例えばそれぞれ赤、黄、緑の３色の光を発光するＬＥＤや半導体レーザ、電球、または、複数のＬＥＤを配列したＬＥＤアレイ等の光源であり、発光した光が導光板２の側部から内部に入射するように発光部が導光板２の側部に対向するようにして、単一の導光板２の側部の３箇所に配置されている。導光板２の側部に対向する発光部以外の部分は図示しない光シールドに覆われている。これらの光源３ａ、３ｂ、３ｃは、図示しない制御部により発光制御され、交通規則に従った発光パターンで順番に発光するようになっている。即ち、信号機１が、通行する車両等に対して「進行」を示す点灯表示をする際には青色の光を発光する光源３ｃを発光制御し、その後、「注意」、「停止」を示す点灯表示をする際には黄色の光を発光する光源３ｂを一定時間発光制御して、赤色の光を発光する光源３ａを発光制御する。この発光パターンで繰り返し光源３ａ、３ｂ、３ｃを発光制御する。 The light sources 3a, 3b, and 3c are light sources such as LEDs, semiconductor lasers, light bulbs, or LED arrays in which a plurality of LEDs are arranged to emit light of three colors of red, yellow, and green, respectively. Light emitting parts are arranged at three locations on the side of the single light guide plate 2 so that the light emitting parts face the side of the light guide plate 2 so as to enter the inside from the side of the light guide plate 2. A portion other than the light emitting portion facing the side portion of the light guide plate 2 is covered with a light shield (not shown). The light sources 3a, 3b, and 3c are controlled to emit light by a control unit (not shown), and emit light sequentially in a light emission pattern according to traffic rules. That is, when the traffic light 1 displays a lighting indicating “progress” for a vehicle or the like that passes there, the light source 3c that emits blue light is controlled to emit light, and thereafter, lighting indicating “caution” and “stop” is performed. When displaying, the light source 3b that emits yellow light is controlled to emit light for a certain period of time, and the light source 3a that emits red light is controlled to emit light. The light sources 3a, 3b, and 3c are controlled to emit light repeatedly with this light emission pattern.
反射板４は、導光板２の背面全体に取り付けられた、白色の顔料を塗布した光反射性に優れるＰＥＴシートやアルミニウム等の光反射性に優れた金属を蒸着したフィルム等であって、導光板２内部に入射した光を反射させて信号機１の正面側から出射させるようになっている。カバー５は、導光板２および光源３ａ、３ｂ、３ｃの正面を保護し、導光板２の正面から出射した光を透過する透明な素材で構成されている。以上のような構成を有する信号機１は、図１に示すように、交通の路面３０近傍に立てられた柱３１に取り付けられ路面３０上方の所定高さの位置に固定されている。また、図示していないが、カバー５の上部に例えば太陽光を遮るための庇部が設けられていても良い。 The reflecting plate 4 is a PET sheet attached to the entire back surface of the light guide plate 2 and coated with a white pigment and having excellent light reflectivity, a film on which a metal having excellent light reflectivity such as aluminum is deposited, and the like. Light incident on the inside of the optical plate 2 is reflected and emitted from the front side of the traffic light 1. The cover 5 is made of a transparent material that protects the front surfaces of the light guide plate 2 and the light sources 3a, 3b, and 3c and transmits light emitted from the front surface of the light guide plate 2. As shown in FIG. 1, the traffic light 1 having the above-described configuration is attached to a pillar 31 standing near the road surface 30 of traffic and fixed at a predetermined height above the road surface 30. Moreover, although not shown in figure, the collar part for interrupting sunlight may be provided in the upper part of the cover 5, for example.
（作用）
続いて本発明に係る信号機の作用について詳細に説明する。まず、光源３ａ、３ｂ、３ｃのいずれかが発光すると、発光した光は、図５に示すように、導光板２の側部から入射して導光板２内部を透過する。透過した光は、導光板２の正面内側を反射するか又は直接に導光板２の背面に到達する。
(Function)
Next, the operation of the traffic light according to the present invention will be described in detail. First, when any one of the light sources 3a, 3b, and 3c emits light, the emitted light enters from the side of the light guide plate 2 and is transmitted through the light guide plate 2 as shown in FIG. The transmitted light reflects the front inner side of the light guide plate 2 or directly reaches the back surface of the light guide plate 2.
導光板２の背面に到達した光は、導光板２の背面に取り付けられた反射板４により反射されて信号機１の正面側方向に方向修正され、導光板２の正面から出射し、カバー５を透過して信号機１の正面側一方向から出射する。 The light that has reached the back surface of the light guide plate 2 is reflected by the reflecting plate 4 attached to the back surface of the light guide plate 2 and direction-corrected in the direction of the front side of the traffic light 1, and is emitted from the front surface of the light guide plate 2. The light passes through and exits from one direction on the front side of the traffic light 1.
また、導光板２内部を透過した光が、導光板２の正面内側を反射するか又は直接に凹部２１の四角錐の形成面に到達すると、凹部２１の形成面の内側を反射して一様に方向修正され、導光板２の正面の周辺部分の一定の範囲から出射し、カバー５を透過して信号機１の正面一方向の周囲の一定の範囲から一様に出射する。 Further, when the light transmitted through the inside of the light guide plate 2 reflects the front inner side of the light guide plate 2 or directly reaches the formation surface of the quadrangular pyramid of the concave portion 21, the inner side of the formation surface of the concave portion 21 is reflected and uniform. The direction of the light guide plate 2 is corrected, the light is emitted from a certain range of the front peripheral portion of the light guide plate 2, is transmitted through the cover 5, and is uniformly emitted from a certain range around the front direction of the traffic light 1.
そして、実際には交通規則に従って光源３ａ、３ｃ、３ｂが順番に発光し、光を信号機１の正面側一方向から出射させると共に、その正面側一方向の周囲の一定の範囲からも出射させ、通行する車両や歩行者に対して点灯表示を行う。 And in fact, the light sources 3a, 3c, 3b emit light in order according to traffic rules, and the light is emitted from one direction on the front side of the traffic light 1, and also emitted from a certain range around the one direction on the front side, Lights up the display for vehicles and pedestrians that pass.
（効果）
このように、信号機１が交通規則に従って光源３ａ、３ｃ、３ｂを発光させると、導光板２に入射した光が反射板４を反射して信号機１の正面側一方向から出射すると共に、凹部２１の形成面の内側を反射してその正面側一方向の周囲の一定の範囲にも一様に出射するので、信号機１付近やその周辺にいる車両や歩行者は、信号機１に点灯表示された光を視認して通行を行うことができる。
(effect)
As described above, when the traffic light 1 causes the light sources 3a, 3c, and 3b to emit light according to traffic rules, the light incident on the light guide plate 2 is reflected from the reflection plate 4 and emitted from one direction on the front side of the traffic light 1, and the recess 21 Because the light is reflected from the inside of the formation surface and uniformly emitted to a certain range around the front side of the road, vehicles and pedestrians in the vicinity of the traffic light 1 and in the vicinity thereof are lit and displayed on the traffic light 1. You can see the light and pass.
更に、信号機内部にただ単に光源を設けて発光し、光が全方向に拡散されて出射するのではなく、信号機１の正面側一方向およびその正面側一方向の周囲の一定の範囲に出射するので、出射する方向への光が少なくなって弱められることがなく強い光が出射するので、信号機１付近やその周辺にいる車両や歩行者は、様々な環境条件においても、見えにくくならずにより容易に点灯表示された光を視認して通行を行うことができる。 Furthermore, a light source is simply provided inside the traffic light to emit light, and the light is not diffused and emitted in all directions, but emitted in one direction on the front side of the traffic signal 1 and a certain range around the front side in one direction. Therefore, since light in the direction of emission is reduced and strong light is emitted without being weakened, vehicles and pedestrians in the vicinity of the traffic light 1 and in the vicinity thereof are not difficult to see even under various environmental conditions. It is possible to pass by visually recognizing the light that is lit and displayed.
また、信号機１の正面側一方向のみに出射するのではないため、信号機付近だけでなくその周辺にいる車両や歩行者も確実に容易に視認することができる。 Further, since the light is not emitted only in one direction on the front side of the traffic light 1, not only the vicinity of the traffic light but also a vehicle or a pedestrian in the vicinity thereof can be surely easily recognized.
（他の実施の形態）
次に、他の実施の形態について図面を用いて詳細に説明する。図１１は、他の実施の形態に係る信号機１００の外観を示す説明図である。本発明に係る信号機１００は、上述の実施の形態における信号機１と略同様の構成を有する３つの信号機１ａ、１ｂ、１ｃを取付部材１１０上の所定の３箇所のそれぞれに取り付けられて構成されている。信号機１ａ、１ｂ、１ｃは、それぞれが信号機１が備えている導光板２の側部に光源３ａ、３ｂ、３ｃのうち光源３ａのみ、光源３ｂのみ、光源３ｃのみの１つずつが配置された構成を有しており、信号機１ａ、１ｂ、１ｃが赤、黄、緑の色のみの光を発光するようになっている。これ以外は、信号機１と同様の構成であり説明を省略する。
(Other embodiments)
Next, another embodiment will be described in detail with reference to the drawings. FIG. 11 is an explanatory diagram showing an appearance of a traffic light 100 according to another embodiment. The traffic signal 100 according to the present invention is configured by attaching three traffic signals 1 a, 1 b, 1 c having substantially the same configuration as the traffic signal 1 in the above-described embodiment to each of predetermined three locations on the mounting member 110. Yes. Each of the traffic lights 1a, 1b, 1c is arranged on the side of the light guide plate 2 included in the traffic light 1, one of the light sources 3a, 3b, 3c, only the light source 3a, only the light source 3b, and only the light source 3c. The traffic lights 1a, 1b, and 1c emit light of only red, yellow, and green colors. Other than this, the configuration is the same as that of the traffic light 1, and the description thereof is omitted.
取付部材１１０は、例えば長方形状の板部材等であって所定の３箇所に信号機１ａ、１ｂ、１ｃを嵌合させ固定させるための嵌合部が設けられている。 The attachment member 110 is, for example, a rectangular plate member or the like, and is provided with fitting portions for fitting and fixing the traffic lights 1a, 1b, and 1c at predetermined three locations.
以上のような構成を有する信号機１００によっても、信号機１と同様に信号機１が交通規則に従って信号機１ａ、１ｂ、１ｃが備えている光源３ａ、３ｃ、３ｂを発光させると、導光板２に入射した光が反射板４を反射して信号機１の正面側一方向から出射すると共に、凹部２１の形成面の内側を反射してその正面側一方向の周囲の一定の範囲にも一様に出射するので、信号機１００付近やその周辺にいる車両や歩行者は、信号機１００に点灯表示された光を視認して通行を行うことができる。 Even with the traffic light 100 having the above-described configuration, when the traffic light 1 causes the light sources 3a, 3c, and 3b included in the traffic lights 1a, 1b, and 1c to emit light according to the traffic rules, similarly to the traffic light 1, the light enters the light guide plate 2. The light is reflected from the reflecting plate 4 and emitted from one direction on the front side of the traffic light 1, and the inside of the formation surface of the concave portion 21 is reflected and emitted uniformly to a certain range around the one direction on the front side. Therefore, a vehicle or a pedestrian in the vicinity of the traffic signal 100 or in the vicinity thereof can travel while visually recognizing the light lit and displayed on the traffic signal 100.
上述の実施の形態においては、導光板２の背面に設けられた複数の凹部２１がマトリクス状に配列されて設けられているが、このような構成に限られず、複数の凹部２１が、図６に示すように、導光板２０の背面に複数の同心円状に配列されて設けられていても良い。この構成によっても、光を信号機１の正面側一方向およびその正面側一方向の周囲の一定の範囲に出射させることができる。 In the above-described embodiment, the plurality of recesses 21 provided on the back surface of the light guide plate 2 are arranged in a matrix. However, the present invention is not limited to such a configuration, and the plurality of recesses 21 are illustrated in FIG. As shown in FIG. 5, a plurality of concentric circles may be arranged on the back surface of the light guide plate 20. Also with this configuration, light can be emitted in one direction on the front side of the traffic light 1 and in a certain range around the one direction on the front side.
上述の実施の形態においては、導光板２の背面に設けられた複数の凹部２１を四角錐形状としたが、これに限られず斜面が形成されているものであれば、三角錐形状等の他の形状であっても良い。また、半球状の凹部であっても良い。 In the above-described embodiment, the plurality of recesses 21 provided on the back surface of the light guide plate 2 have a quadrangular pyramid shape. The shape may also be Moreover, a hemispherical recessed part may be sufficient.
また、導光板２の背面は、正面に平行な面となっていたが、図７に示すように、背面のみを信号機１の下方寄りを向くように傾斜させた導光板２５としても良い。このような構成により、光を信号機１の正面側下方の一方向およびその正面側下方の一方向の周囲の一定の範囲に出射させることができ、信号機１の下方を通行する車両や歩行者に対して、点灯表示された光がより直接的に出射されて、より効果的に視認しやすくなる。 Moreover, although the back surface of the light guide plate 2 is a surface parallel to the front surface, as shown in FIG. 7, only the back surface may be a light guide plate 25 that is inclined so as to face the lower side of the traffic light 1. With such a configuration, light can be emitted in one direction below the front side of the traffic light 1 and in a certain range around the one direction below the front side, so that vehicles and pedestrians passing under the traffic light 1 can On the other hand, the light that has been lit up is emitted more directly and is more easily visually recognized.
また、図８に示すように、円板状の導光板２７の周囲を３分割し、円弧状の光源３ａ、３ｂ、３ｃをそれぞれの３分割の各領域に導光板２７の側部に沿って取り付けて配置しても良い。 Further, as shown in FIG. 8, the periphery of the disc-shaped light guide plate 27 is divided into three, and the arc-shaped light sources 3 a, 3 b, and 3 c are arranged along the side portions of the light guide plate 27 in the respective three divided regions. You may install and arrange.
図９に示すように、矩形状の導光板２８の対向する２つの側部に２種類の色の光を発光する光源６１、６２を配置させ、２種類の色の光を正面一方向およびその正面一方向の周囲の一定の範囲に出射させる信号機を実現することもできる。そして、このような構成を用いて、光源６１、６２がそれぞれ赤、緑の２色の光を発光する歩行者用信号機を実現することもでき、歩行者用の横断歩道の近傍に設置することも可能である。 As shown in FIG. 9, light sources 61 and 62 that emit light of two kinds of colors are arranged on two opposing side portions of a rectangular light guide plate 28, and light of two kinds of colors is transmitted in one direction in the front and its direction. It is also possible to realize a traffic light that emits light in a certain range around one front direction. And by using such a configuration, it is possible to realize a pedestrian traffic light in which the light sources 61 and 62 emit light of two colors, red and green, respectively, and be installed in the vicinity of a pedestrian crosswalk. Is also possible.
更に、図１０に示すように、導光板２９に設けられた複数の凹部２２は、上方側に位置する凹部２２を大きい四角錐とし、下方に向かうに従って徐々に小さい四角錐として下方側に位置する凹部２２を小さな四角錐としても良い。例えば、凹部２２の深さを６段階等の所定数段階に分け、それらのうち最も深さを有するものを上方側に位置させ、そして下方に向かって順々に段階毎に深さが少ないものを位置させていき、最も下方側に位置する凹部２２を最も深さが少ないものとしても良い。このような構成により、導光板２９から出射する光を下方側に集中させ、信号機１の下方を通行する車両や歩行者に対して、より効果的に視認しやすくできる。 Furthermore, as shown in FIG. 10, the plurality of recesses 22 provided in the light guide plate 29 are positioned on the lower side as concave portions 22 located on the upper side as large quadrangular pyramids and gradually become smaller quadrangular pyramids as they go downward. The recess 22 may be a small square pyramid. For example, the depth of the concave portion 22 is divided into a predetermined number of steps such as six steps, among which the deepest one is positioned on the upper side, and the depth is gradually reduced in each step downward It is good also as the thing with the smallest depth of the recessed part 22 located in the lowermost side. With such a configuration, the light emitted from the light guide plate 29 can be concentrated on the lower side, and can be more effectively visually recognized by a vehicle or a pedestrian passing under the traffic light 1.
本発明に係る信号機１は、線路近傍に設置された鉄道用信号機等の様々な用途で用いられる信号機にも利用することが可能である。 The traffic signal 1 according to the present invention can also be used for traffic signals used in various applications such as railway traffic signals installed in the vicinity of railway tracks.
背面に複数の凹部が設けられた板状の導光板と、導光板の側部に配置された光源と、導光板の背面側に設けられた反射板とを備えた信号機において利用することが可能である。 Can be used in traffic lights equipped with a plate-shaped light guide plate with a plurality of recesses on the back, a light source placed on the side of the light guide plate, and a reflector provided on the back side of the light guide plate It is.
１、１ａ、１ｂ、１ｃ、１００ 信号機
２、２０、２５、２７、２８、２９ 導光板
３ａ、３ｂ、３ｃ、６１、６２ 光源
４ 反射板
５ カバー
２１、２２ 凹部
３０ 路面
３１ 柱
１１０ 取付部材
1, 1a, 1b, 1c, 100 Traffic light 2, 20, 25, 27, 28, 29 Light guide plate 3a, 3b, 3c, 61, 62 Light source 4 Reflecting plate 5 Cover 21, 22 Recess 30 Road surface 31 Pillar 110 Mounting member
Claims (5)
前記導光板の側部の所定の箇所に配置された光源と、
前記導光板の背面側に設けられた反射板と、を備えたことを特徴とする信号機。 A plate-shaped light guide plate provided with a plurality of recesses in accordance with a predetermined arrangement pattern on the back surface;
A light source disposed at a predetermined location on a side of the light guide plate;
And a reflector provided on the back side of the light guide plate.
前記複数の凹部は、前記導光板の背面にマトリクス状に配列されて設けられ、
前記光源は、ＬＥＤであることを特徴とする信号機。 The traffic light according to claim 1,
The plurality of recesses are arranged in a matrix on the back surface of the light guide plate,
The traffic light is characterized in that the light source is an LED.
前記複数の凹部は、前記導光板の背面に複数の同心円状に配列されて設けられていることを特徴とする信号機。 The traffic light according to claim 1,
The traffic light is characterized in that the plurality of concave portions are arranged in a plurality of concentric circles on the back surface of the light guide plate.
前記光源は、単一の前記導光板の側部の３箇所に配置された赤、黄、緑のそれぞれの光を発光する３つの光源から構成されていることを特徴とする信号機。 The traffic light according to claim 1, 2 or 3,
The light source is composed of three light sources that emit light of red, yellow, and green, which are arranged at three locations on the side of a single light guide plate.
前記光源は、３つの前記導光板のそれぞれの側部に１つずつ配置された赤、黄、緑のそれぞれの光を発光する３つの光源から構成されていることを特徴とする信号機。 The traffic light according to claim 1, 2 or 3,
The light source is composed of three light sources each emitting red, yellow, and green light, one on each side of the three light guide plates.
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| JP2005112812A JP2006293645A (en) | 2005-04-08 | 2005-04-08 | Signal |
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| JP2005112812A JP2006293645A (en) | 2005-04-08 | 2005-04-08 | Signal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010176233A (en) * | 2009-01-28 | 2010-08-12 | Sumitomo Electric Ind Ltd | Light device, traffic signal light device and antireflecting unit for light device |
| JP2013016269A (en) * | 2011-06-30 | 2013-01-24 | Citizen Holdings Co Ltd | Traffic light |
| JP2013126786A (en) * | 2011-12-16 | 2013-06-27 | Transportation Systems Electric Corp | Omnidirectional warning light |
| CN105405305A (en) * | 2015-11-13 | 2016-03-16 | 卢泉生 | Method for manufacturing surrounding instruction identification traffic light |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10222798A (en) * | 1997-02-10 | 1998-08-21 | Kasuga Kagaku Kogyo Kk | Prismatic signal light |
| JP2003045214A (en) * | 2001-07-27 | 2003-02-14 | Airesu Denshi Kogyo Kk | Light-emitting device |
| JP2004140327A (en) * | 2002-08-21 | 2004-05-13 | Nippon Leiz Co Ltd | Light source, light guide, and planar light-emitting device |
-
2005
- 2005-04-08 JP JP2005112812A patent/JP2006293645A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10222798A (en) * | 1997-02-10 | 1998-08-21 | Kasuga Kagaku Kogyo Kk | Prismatic signal light |
| JP2003045214A (en) * | 2001-07-27 | 2003-02-14 | Airesu Denshi Kogyo Kk | Light-emitting device |
| JP2004140327A (en) * | 2002-08-21 | 2004-05-13 | Nippon Leiz Co Ltd | Light source, light guide, and planar light-emitting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010176233A (en) * | 2009-01-28 | 2010-08-12 | Sumitomo Electric Ind Ltd | Light device, traffic signal light device and antireflecting unit for light device |
| JP2013016269A (en) * | 2011-06-30 | 2013-01-24 | Citizen Holdings Co Ltd | Traffic light |
| JP2013126786A (en) * | 2011-12-16 | 2013-06-27 | Transportation Systems Electric Corp | Omnidirectional warning light |
| CN105405305A (en) * | 2015-11-13 | 2016-03-16 | 卢泉生 | Method for manufacturing surrounding instruction identification traffic light |
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