JP3574614B2 - Light emitters and lamps - Google Patents

Light emitters and lamps Download PDF

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Publication number
JP3574614B2
JP3574614B2 JP2000280607A JP2000280607A JP3574614B2 JP 3574614 B2 JP3574614 B2 JP 3574614B2 JP 2000280607 A JP2000280607 A JP 2000280607A JP 2000280607 A JP2000280607 A JP 2000280607A JP 3574614 B2 JP3574614 B2 JP 3574614B2
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Prior art keywords
light
light emitting
emitting diode
lens
diode group
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JP2002093205A (en
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雄造 竹野
保正 小林
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常盤電業株式会社
保正 小林
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/233—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Led Device Packages (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Traffic Control Systems (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、歩行者用交通信号に用いる信号灯用の発光体及び灯器に関するものである。
【０００２】
【従来の技術】
従来、歩行者用交通信号に用いられる灯器としては、白熱電球タイプのものが使われていた。ところで昨今、発光ダイオードを用いた信号灯器が開発されつつある。このような信号灯器では、発光ダイオードの前方に赤色レンズや青色レンズを設置して信号灯器とする。
【０００３】
【発明が解決しようとする課題】
しかしながら、白色発光ダイオードを用い、その前方に赤色レンズを設置して信号灯器とすると、白色発光ダイオードが点灯しても、赤色レンズの周辺部分が暗くなるという問題点があった。その理由として以下の事柄が挙げられる。
【０００４】
（１）図８（ａ）は可視光線の波長範囲を示し、その範囲はおよそ波長４００ｎｍ〜７８０ｎｍであることが知られている。図８（ｂ）は可視光線に対する人間の目で感知される感度の波長依存性を示す。人間の目は、波長５５５ｎｍ付近の光に対して最も高い感度を有する視感度特性を持ち、波長の短い側並びに長い側では感度が減少していく。つまり、赤色光に対して、人の目は感度が低い。
【０００５】
（２）図９、図１０は各種光源の発光スペクトル特性を示す。従来の交通信号用灯器に用いられてきた白熱電球は波長の長い光成分を多く含み、黄色に近い色として目で感知される。
【０００６】
（３）図９、図１０の白色発光ダイオードの発光スペクトルから分かるように、白色発光ダイオードの発する光の成分には青色部分が多く、波長６００ｎｍ以上の赤色光成分が少ない。
【０００７】
従来の（２）の特性を持つ白熱電球を光源とする灯器に対し、白色発光ダイオードをその灯器に用いると、（１）の人の目の視感度特性と、（３）の白色発光ダイオードの発光スペクトルとの相乗効果に起因して、前記の赤色レンズの周辺部分が暗く見えると考えられる。
【０００８】
本発明は、このような問題に鑑みてなされたもので、その目的とするところは、
レンズ全面が明るく点灯する信号灯用の発光体及び灯器を提供するものである。
【０００９】
【課題を解決するための手段】
前述した目的を達成するために、本発明は複数の発光ダイオードを有する発光体と、前記発光体の前方に設置される有色レンズとを具備する歩行者用交通信号に用いる信号灯用の灯器であって、前記有色レンズは、中央部が人形の形にくり抜かれ、前記有色レンズの周辺部を照射する発光ダイオードの発光色のみを前記有色レンズの色とほぼ同色にし、他の発光ダイオードの発光色を白色とすることを特徴とする灯器である。本発明では、有色レンズの周辺部を照射する発光ダイオードの発光色のみを有色レンズの色とほぼ同色にしたので、有色レンズの周辺部も明るく点灯したように見える。
【００１１】
【発明の実施の形態】
以下、図面に基づいて、本発明の実施の形態を詳細に説明する。
図１は、本発明の一実施の形態に係る発光体１の斜視図、図２は発光体１の縦断面図である。図１、図２に示されるように円柱状の支柱３の上部に円盤状のアルミプレート２５、絶縁ラバー６、第１基板５が設けられる。
【００１２】
アルミプレート２５は、放熱板として機能する。支柱３はアルミニウム等からなる。尚、放熱板としては、アルミニウム以外の材料を用いてもよい。
【００１３】
第１基板５には支柱３の軸方向に向けて複数の第１発光ダイオード群１５が設けられる。
【００１４】
支柱３には、その中央部に更に円盤状の、第２基板７、第３基板９、第４基板１１、第５基板１３、受け部２８が順次設けられる。
【００１５】
第２基板７には側面に向けて複数の第２発光ダイオード群１７が設けられる。第３基板９には、第３発光ダイオード群１９が設けられ、第４基板１１には第４発光ダイオード群２１が設けられ、第５基板１３には第５発光ダイオード群２３が設けられる。第２発光ダイオード群１７は赤色で点灯し、それ以外の第１発光ダイオード群１５、第３発光ダイオード群１９、第４発光ダイオード群２１、第５発光ダイオード群２３は白色で点灯する。受け部２８には電気回路板２９が設けられる。支柱３の下端部にはプラグ３１が形成される。
【００１６】
円盤状の第２基板７、第３基板９、第４基板１１、第５基板１３の径は順次小さくなり、第３発光ダイオード群１９、第４発光ダイオード群２１、第５発光ダイオード群２３の向きは、図２において徐々に下側に向く。
【００１７】
電気回路板２９は、プラグ３１から供給された交流電力を直流に変換し、発光ダイオードの作動電圧になるよう調節し、第１基板５、第２基板７、第３基板９、
第４基板１１、第５基板１３に印加する。プラグ３１は、従来の信号灯の白熱電球と互換性のある形状である。
【００１８】
図３はケーシング４３に発光体１、レンズ４１を取り付ける説明図である。図４はレンズ４１の正面図である。ケーシング４３の内側には、反射板４５を設け、ケーシング４３内部中央には発光体１を装着し、ケーシング４３の前面開口部にレンズ４１を設ける。
【００１９】
レンズ４１は、第１レンズ４１ａ上に第２レンズ４１ｂが重ねられたもので、第１レンズ４１ａは、周辺部４２ａの中央部が人形４２ｂの形にくり抜かれる。周辺部４２ａの素材はアクリル系樹脂やポリカーボネート等の赤色プラスティックであり、第２レンズ４１ｂはアクリル系樹脂やポリカーボネート等の透明プラスティックからなる。
【００２０】
発光体１下部のプラグ３１は、ケーシング４３中央の開口部４４を貫通しており、図示しない交流電源用ソケットに装着され使用される。
【００２１】
図５に示されるように、第１発光ダイオード群１５の発射光は前方に放射される。第２発光ダイオード群１７等からの発射光は反射板４５により反射され、第１発光ダイオード群１５の光束と平行に前方へ放射される。
【００２２】
第２基板７、第３基板９、第４基板１１、第５基板１３の径が、徐々に小さくされ、また第２発光ダイオード群１７、第３発光ダイオード群１９、第４発光ダイオード群２１、第５発光ダイオード群２３の取り付け角度が徐々に変えられ、各発光ダイオード群１７、１９、２１、２３で発せられる光が前方に向かうようになっているので、反射板４５全面を有効に利用することができ、その結果前面の輝度の偏りを少なくすることができる。
【００２３】
そして、第１発光ダイオード群１５、第３発光ダイオード群１９、第４発光ダイオード群２１、第５発光ダイオード群２３は白色の光を発し、この光が人形４２ｂとレンズ４１ａ、４１ｂを透過するので、外部から見ると人形４２ｂは白色に、周辺部４２ａは赤く光ったように見える。また、第２発光ダイオード群１７からの発射光はレンズ４１の周辺部を透過するが、この光は赤色であるため、外部から見るとレンズ４１の周囲も赤く光ったように見える。
【００２４】
図６は、図３に示す発光体１が用いられた灯器６１の正面図であり、図７はその概略縦断面図である。レンズ４１−１は赤色のレンズの上に透明レンズが重ねられ、レンズ４１−２は青色のレンズの上に透明レンズが重ねられる。図６、図７に示すように灯器６１の内部にはケーシング４３−１、４３−２が設けられ、ケーシング４３−１、４３−２の前方にレンズ４１−１、４１−２が設けられる。
【００２５】
そしてケーシング４３−１の内部には図１及び図２に示す発光体１が設置される。即ち、第２発光ダイオード群１７のみが赤色で点灯し、他の第１発光ダイオード群１５、第３発光ダイオード群１９、第４発光ダイオード群２１、第５発光ダイオード群２３は白色で点灯する。
【００２６】
このように本実施の形態によれば、ケーシング４３−１内に設置される発光体１の第２発光ダイオード群１７のみを赤色で点灯し、第１発光ダイオード群１５、第３発光ダイオード群１９、第４発光ダイオード群２１、第５発光ダイオード群２３は白色で点灯するようにしたので、発光体１を点灯させた場合、レンズ４１−１の周辺部分も明るく光ったように見え、レンズ４１−１の人形４２ｂ並びに周辺部４２ａの全面が明るく点灯する。
【００２７】
尚、本発明は、前述した実施形態に限定されるものではなく、種々の変形が可能であり、例えば第２発光ダイオード群１７と第３発光ダイオード群１９を赤色で点灯するようにしてもよい。
【００２８】
又、発光体１では、側部に第２発光ダイオード群１７、第３発光ダイオード群１９、第４発光ダイオード群２１、第５発光ダイオード群２３と４段の発光ダイオード群を設けたが、４段に限定されず、例えば５段にしても良い。
【００２９】
又、前述した実施の形態では、周辺部４２ａが赤色で発光体１の第２発光ダイオード群１７も赤色にしたが、レンズ４１−２に示すように、周辺部が青色の場合、発光体１の第２発光ダイオード群１７を青色にしても同様の効果を奏する。更に、発光体１自体の構成は、図１、図２に示されるもの以外に、本出願人が既に出願したフレキシブル基板を用いたものでも良い（特願平１１−２９５９０６）。
【００３０】
【発明の効果】
このように、本実施の形態によれば、レンズ全面が明るく点灯する発光体及び灯器を提供することができる。更に、灯器は、赤色点灯時と青色点灯時ともに白抜きで人形が表示され、それらは良好な視認性を保つことができる。
【図面の簡単な説明】
【図１】発光体１の斜視図
【図２】発光体１の縦断面図
【図３】発光体１を用いた灯器の構成図
【図４】レンズ４１の正面図
【図５】信号灯５１の断面図
【図６】灯器６１の正面図
【図７】灯器６１の断面図
【図８】可視光線の波長範囲と視感度特性を示す図
【図９】各種光源の分光分布図
【図１０】各種光源の発光スペクトル特性を示す図
【符号の説明】
１………発光体
３………支柱
５………第１基板
７………第２基板
９………第３基板
１１………第４基板
１３………第５基板
１５………第１発光ダイオード群
１７………第２発光ダイオード群
１９………第３発光ダイオード群
２１………第４発光ダイオード群
２３………第５発光ダイオード群
２５………アルミプレート
２８………受け部
２９………電気回路板
３１………プラグ
４１………レンズ
４３………ケーシング
４４………開口部
４５………反射板
５１………信号灯
６１………歩行者用灯器[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal light illuminator and a lamp used for a pedestrian traffic signal.
[0002]
[Prior art]
Conventionally, incandescent light bulbs have been used as lamps used for pedestrian traffic signals. By the way, recently, a signal lamp using a light emitting diode is being developed. In such a signal light device, a red lens or a blue lens is provided in front of the light emitting diode to form a signal light device.
[0003]
[Problems to be solved by the invention]
However, when a white light emitting diode is used and a red lens is installed in front of the white light emitting diode to form a signal lamp, there is a problem that the peripheral portion of the red lens becomes dark even if the white light emitting diode is turned on. The reasons are as follows.
[0004]
(1) FIG. 8A shows the wavelength range of visible light, and it is known that the range is about 400 nm to 780 nm. FIG. 8B shows the wavelength dependence of the sensitivity perceived by the human eye to visible light. The human eye has a luminosity characteristic that has the highest sensitivity to light near the wavelength of 555 nm, and the sensitivity decreases on the shorter and longer wavelength sides. That is, human eyes have low sensitivity to red light.
[0005]
(2) FIGS. 9 and 10 show emission spectrum characteristics of various light sources. Incandescent lamps used in conventional traffic signal lamps contain many light components with long wavelengths and are visually perceived as a color close to yellow.
[0006]
(3) As can be seen from the emission spectra of the white light emitting diodes in FIGS. 9 and 10, the light components emitted from the white light emitting diodes have many blue portions and few red light components having a wavelength of 600 nm or more.
[0007]
When a white light emitting diode is used as a light source for a conventional lamp using an incandescent light bulb having the characteristic of (2) as a light source, (1) human eye visibility characteristics and (3) white light emission It is considered that the peripheral portion of the red lens appears dark due to a synergistic effect with the emission spectrum of the diode.
[0008]
The present invention has been made in view of such a problem.
An object of the present invention is to provide a light emitter for a signal lamp and a lighting device in which the entire surface of the lens is brightly lit.
[0009]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention provides a lighting device for a signal light used for a pedestrian traffic signal, comprising a light emitter having a plurality of light emitting diodes, and a colored lens installed in front of the light emitter. The colored lens has a central part hollowed out in the shape of a doll, and only the emission color of the light emitting diode illuminating the peripheral part of the colored lens is made substantially the same as the color of the colored lens, and the light emission of the other light emitting diodes is performed. A lighting device characterized in that the color is white. In the present invention, since only the emission color of the light emitting diode that irradiates the peripheral portion of the colored lens is made substantially the same color as the color of the colored lens, it appears that the peripheral portion of the colored lens is also brightly lit.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a luminous body 1 according to one embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the luminous body 1. As shown in FIGS. 1 and 2, a disk-shaped aluminum plate 25, an insulating rubber 6, and a first substrate 5 are provided on a column-shaped support 3.
[0012]
The aluminum plate 25 functions as a heat sink. The support 3 is made of aluminum or the like. Note that a material other than aluminum may be used for the heat sink.
[0013]
A plurality of first light emitting diode groups 15 are provided on the first substrate 5 in the axial direction of the support 3.
[0014]
In the center of the support 3, a second substrate 7, a third substrate 9, a fourth substrate 11, a fifth substrate 13, and a receiving portion 28 are further provided in order at the center thereof.
[0015]
A plurality of second light emitting diode groups 17 are provided on the second substrate 7 toward the side surface. A third light emitting diode group 19 is provided on the third substrate 9, a fourth light emitting diode group 21 is provided on the fourth substrate 11, and a fifth light emitting diode group 23 is provided on the fifth substrate 13. The second light emitting diode group 17 lights in red, and the other first light emitting diode group 15, the third light emitting diode group 19, the fourth light emitting diode group 21, and the fifth light emitting diode group 23 light in white. The receiving portion 28 is provided with an electric circuit board 29. A plug 31 is formed at the lower end of the column 3.
[0016]
The diameters of the disc-shaped second substrate 7, third substrate 9, fourth substrate 11, and fifth substrate 13 gradually decrease, and the third light emitting diode group 19, the fourth light emitting diode group 21, and the fifth light emitting diode group 23 become smaller. The direction gradually turns downward in FIG.
[0017]
The electric circuit board 29 converts the AC power supplied from the plug 31 to DC, adjusts the DC power to the operating voltage of the light emitting diode, and adjusts the first substrate 5, the second substrate 7, the third substrate 9,
The voltage is applied to the fourth substrate 11 and the fifth substrate 13. The plug 31 has a shape compatible with an incandescent light bulb of a conventional signal light.
[0018]
FIG. 3 is an explanatory view of attaching the light emitter 1 and the lens 41 to the casing 43. FIG. 4 is a front view of the lens 41. A reflection plate 45 is provided inside the casing 43, the luminous body 1 is mounted in the center of the inside of the casing 43, and a lens 41 is provided in the front opening of the casing 43.
[0019]
The lens 41 is obtained by superimposing a second lens 41b on a first lens 41a, and the first lens 41a has a central portion of a peripheral portion 42a hollowed out in the shape of a doll 42b. The material of the peripheral portion 42a is red plastic such as acrylic resin or polycarbonate, and the second lens 41b is formed of transparent plastic such as acrylic resin or polycarbonate.
[0020]
The plug 31 at the lower part of the illuminant 1 penetrates the opening 44 in the center of the casing 43, and is used by being mounted on an AC power supply socket (not shown).
[0021]
As shown in FIG. 5, the emission light of the first light emitting diode group 15 is emitted forward. Light emitted from the second light emitting diode group 17 and the like is reflected by the reflection plate 45 and emitted forward in parallel with the light flux of the first light emitting diode group 15.
[0022]
The diameters of the second substrate 7, the third substrate 9, the fourth substrate 11, and the fifth substrate 13 are gradually reduced, and the second light emitting diode group 17, the third light emitting diode group 19, the fourth light emitting diode group 21, Since the mounting angle of the fifth light emitting diode group 23 is gradually changed, and the light emitted from each of the light emitting diode groups 17, 19, 21, and 23 is directed forward, the entire surface of the reflecting plate 45 is effectively used. As a result, the unevenness of the luminance on the front surface can be reduced.
[0023]
The first light emitting diode group 15, the third light emitting diode group 19, the fourth light emitting diode group 21, and the fifth light emitting diode group 23 emit white light, and this light passes through the doll 42b and the lenses 41a and 41b. When viewed from the outside, the doll 42b looks white and the peripheral portion 42a looks red. The emitted light from the second light emitting diode group 17 passes through the periphery of the lens 41, but since this light is red, the periphery of the lens 41 looks red when viewed from the outside.
[0024]
FIG. 6 is a front view of a lamp 61 using the luminous body 1 shown in FIG. 3, and FIG. 7 is a schematic longitudinal sectional view thereof. The lens 41-1 has a transparent lens overlaid on a red lens, and the lens 41-2 has a transparent lens overlaid on a blue lens. As shown in FIGS. 6 and 7, casings 43-1 and 43-2 are provided inside the lamp 61, and lenses 41-1 and 41-2 are provided in front of the casings 43-1 and 43-2. .
[0025]
The luminous body 1 shown in FIGS. 1 and 2 is installed inside the casing 43-1. That is, only the second light emitting diode group 17 lights in red, and the other first light emitting diode group 15, third light emitting diode group 19, fourth light emitting diode group 21, and fifth light emitting diode group 23 light in white.
[0026]
As described above, according to the present embodiment, only the second light emitting diode group 17 of the light emitting body 1 installed in the casing 43-1 lights up in red, and the first light emitting diode group 15 and the third light emitting diode group 19 , The fourth light emitting diode group 21 and the fifth light emitting diode group 23 are illuminated in white. Therefore, when the illuminant 1 is illuminated, the peripheral portion of the lens 41-1 also appears to shine brightly. The entire surface of the -1 doll 42b and the peripheral portion 42a is brightly lit.
[0027]
Note that the present invention is not limited to the above-described embodiment, and various modifications are possible. For example, the second light emitting diode group 17 and the third light emitting diode group 19 may be lit in red. .
[0028]
In the light-emitting body 1, the second light-emitting diode group 17, the third light-emitting diode group 19, the fourth light-emitting diode group 21, the fifth light-emitting diode group 23 and the four-stage light-emitting diode group are provided on the side. The number of steps is not limited to five, and may be five, for example.
[0029]
In the above-described embodiment, the peripheral portion 42a is red and the second light emitting diode group 17 of the light emitter 1 is also red. However, as shown in the lens 41-2, when the peripheral portion is blue, the light emitter 1 The same effect can be obtained even if the second light emitting diode group 17 is blue. Further, the structure of the luminous body 1 itself may be a structure using a flexible substrate, which has already been applied by the present applicant, other than those shown in FIGS. 1 and 2 (Japanese Patent Application No. 11-295906).
[0030]
【The invention's effect】
As described above, according to the present embodiment, it is possible to provide a light-emitting body and a lamp in which the entire surface of the lens is brightly lit. Furthermore, the doll is displayed with white outlines when the lamp is lit in red and when lit in blue, and they can maintain good visibility.
[Brief description of the drawings]
FIG. 1 is a perspective view of a luminous body 1. FIG. 2 is a longitudinal sectional view of a luminous body 1. FIG. 3 is a configuration diagram of a lamp using the luminous body 1. FIG. 4 is a front view of a lens 41. FIG. FIG. 6 is a front view of the lamp 61. FIG. 7 is a cross-sectional view of the lamp 61. FIG. 8 is a diagram showing a wavelength range of visible light and luminous efficiency characteristics. FIG. 9 is a spectral distribution diagram of various light sources. FIG. 10 is a diagram showing emission spectrum characteristics of various light sources.
1 ... Light-emitting body 3 ... Post 5 ... First substrate 7 ... Second substrate 9 ... Third substrate 11 ... Fourth substrate 13 ... Fifth substrate 15 ... First light emitting diode group 17 Second light emitting diode group 19 Third light emitting diode group 21 Fourth light emitting diode group 23 Fifth light emitting diode group 25 Aluminum plate 28 ... Receiving part 29 ... Electrical circuit board 31 Plug 41 ... Lens 43 Casing 44 Opening 45 Reflector 51 Signal light 61 Pedestrian light vessel

Claims (2)

複数の発光ダイオードを有する発光体と、前記発光体の前方に設置される有色レンズとを具備する歩行者用交通信号に用いる信号灯用の灯器であって、
前記有色レンズは、中央部が人形の形にくり抜かれ、
前記有色レンズの周辺部を照射する発光ダイオードの発光色のみを前記有色レンズの色とほぼ同色にし、他の発光ダイオードの発光色を白色とすることを特徴とする灯器。A luminous body having a plurality of light-emitting diodes, and a lighting device for a signal light used for a pedestrian traffic signal, comprising a colored lens installed in front of the luminous body,
The colored lens has a central part hollowed out in the shape of a doll,
A lighting device characterized in that only the color of the light emitted from the light emitting diode that irradiates the periphery of the colored lens is substantially the same as the color of the color lens, and the color of the light emitted from the other light emitting diodes is white . 前記発光体の後方に反射板が設けられ、前記複数の発光ダイオードのうち、いくつかの発光ダイオードが発する光は、前記反射板で反射されて前記有色レンズを透過するものであり、前記有色レンズの周辺部を照射する発光ダイオードが発する光は、前記反射板で反射されて前記有色レンズを透過することを特徴とする請求項１記載の灯器。A reflector is provided behind the light emitter, and light emitted from some of the plurality of light emitting diodes is reflected by the reflector and transmitted through the colored lens , and the colored lens The lighting device according to claim 1 , wherein light emitted from the light emitting diode that irradiates a peripheral portion of the lighting device is reflected by the reflector and passes through the colored lens .
JP2000280607A 2000-09-14 2000-09-14 Light emitters and lamps Expired - Lifetime JP3574614B2 (en)

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JP2010176233A (en) * 2009-01-28 2010-08-12 Sumitomo Electric Ind Ltd Light device, traffic signal light device and antireflecting unit for light device
JP5491278B2 (en) * 2010-05-19 2014-05-14 日本フネン株式会社 LED lamps used in place of pedestrian traffic light bulbs
JP5731798B2 (en) * 2010-11-09 2015-06-10 日本フネン株式会社 LED lamps used for pedestrian traffic lights
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