JPH09120706A - Surface light emitter with high brightness - Google Patents
Surface light emitter with high brightnessInfo
- Publication number
- JPH09120706A JPH09120706A JP30193695A JP30193695A JPH09120706A JP H09120706 A JPH09120706 A JP H09120706A JP 30193695 A JP30193695 A JP 30193695A JP 30193695 A JP30193695 A JP 30193695A JP H09120706 A JPH09120706 A JP H09120706A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent
- plate
- fluorescent plate
- housing
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Planar Illumination Modules (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高速道路やトンネ
ルの側壁イルミネーション等の用途に適した高輝度面発
光体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-brightness surface light emitter suitable for applications such as highway and tunnel sidewall illumination.
【０００２】[0002]
【従来の技術】近年、高速道路やトンネル内の側壁に
は、渋滞の緩和や安全性、景観等を向上させる目的で面
発光体を取付けることが検討されている。2. Description of the Related Art In recent years, it has been considered to mount a surface light emitter on a side wall of a highway or a tunnel for the purpose of alleviating traffic congestion, improving safety, and improving scenery.
【０００３】このような面発光体としては、一般にＥＬ
（電界発光灯）が用いられている。また、これらの用途
とは別に、面発光体として光拡散性プラスチックシート
の側面から光を照射、拡散させるタイプのものや、乳半
色のプラスチックプレートの背面側から光を照射するタ
イプのものも知られている。As such a surface-emitting body, an EL is generally used.
(Electroluminescence lamp) is used. In addition to these applications, there are types of surface light emitters that irradiate and diffuse light from the side of the light diffusing plastic sheet, and types that irradiate light from the back side of a milky-colored plastic plate. Are known.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、ＥＬは
発光輝度があまり高くなく、寿命も短いという問題があ
る。また、光拡散性プラスチックシートを使用した面発
光体は、構造が複雑な上に該シートが高価であるため、
製造コストが高くなるという問題がある。そして乳半色
のプラスチックプレートを使用した面発光体は、プレー
トの背面側に光源を配置するため全体の厚みが大きくな
り、しかも、輝度ムラが生じて完全な面発光にならない
という問題がある。However, the EL has a problem that the emission brightness is not so high and the life is short. Further, the surface-emitting body using the light diffusing plastic sheet has a complicated structure and the sheet is expensive,
There is a problem that the manufacturing cost increases. The surface-emitting body using a milky-colored plastic plate has a problem that the light source is arranged on the back side of the plate, so that the entire thickness becomes large, and moreover, unevenness in brightness occurs and perfect surface emission cannot be achieved.
【０００５】本発明は上記問題に鑑みてなされたもので
あって、その目的とするところは、構造が簡単で全体の
厚みが小さく、冷陰極管の短波長の光により高輝度でム
ラのない面発光を行える高輝度面発光体を提供すること
にある。The present invention has been made in view of the above problems, and an object thereof is to have a simple structure, a small overall thickness, high brightness and no unevenness due to light of a short wavelength in a cold cathode tube. An object of the present invention is to provide a high-luminance surface light emitter capable of surface light emission.
【０００６】[0006]
【課題を解決するための手段】前記目的を達成するた
め、本発明の請求項１の高輝度面発光体は、透光性の蛍
光板の側端面に沿って冷陰極管を配設したことを特徴と
するものである。In order to achieve the above object, the high-brightness surface light-emitting device according to claim 1 of the present invention has a cold cathode tube arranged along a side end surface of a translucent fluorescent plate. It is a feature.
【０００７】そして、請求項２の高輝度面発光体は、蛍
光板と冷陰極管をハウジングに収納して、蛍光板の前面
をハウジングの前面開口部に露出させたことを特徴と
し、請求項３の高輝度面発光体は、ハウジングの内面又
は蛍光板の後面を光反射面としたことを特徴とし、請求
項４の高輝度面発光体は、蛍光物質を分散させた透光性
樹脂板より成る蛍光板を用いたことを特徴とし、請求項
５の高輝度面発光体は、少なくとも前面に蛍光塗料の塗
膜を形成した透光性樹脂板より成る透光板を用いたこと
を特徴とするものである。The high-brightness surface light emitter of claim 2 is characterized in that the fluorescent plate and the cold cathode fluorescent lamp are housed in a housing, and the front surface of the fluorescent plate is exposed at the front opening of the housing. The high-intensity surface light-emitting body is characterized in that the inner surface of the housing or the rear surface of the phosphor plate is used as a light reflecting surface, and the high-intensity surface light-emitting body according to claim 4 is a phosphor plate made of a translucent resin plate in which a fluorescent substance is dispersed. The high-brightness surface light-emitting device according to claim 5 is characterized in that a light-transmitting plate made of a light-transmitting resin plate having a coating film of fluorescent paint formed on at least the front surface thereof is used. is there.
【０００８】本発明の請求項１の高輝度面発光体は、上
記のように蛍光板の側端面に冷陰極管を配設した極めて
シンプルな構造をしており、冷陰極管を蛍光板の後面側
に配設しないので全体の厚さを薄くすることができる。
しかも、冷陰極管が蛍光板の側端面に配設されている
と、冷陰極管で発生した短波長の光が蛍光板の側端面か
ら入射して、蛍光板の内部又は表面の蛍光物質に略均一
に照射されるため、蛍光物質が一様に蛍光を発して蛍光
板全体が略均一な輝度でムラなく面発光する。そして、
冷陰極管の出力を大きくするほど、蛍光板の蛍光物質に
照射される光量が増大して蛍光が強くなり、発光輝度が
高められる。The high-brightness surface light emitter according to claim 1 of the present invention has an extremely simple structure in which the cold cathode tubes are arranged on the side end surfaces of the fluorescent plate as described above. Since it is not arranged in the above, the total thickness can be reduced.
Moreover, when the cold cathode fluorescent lamp is disposed on the side end surface of the fluorescent plate, the short-wavelength light generated by the cold cathode fluorescent lamp enters from the side end surface of the fluorescent fluorescent plate, and is substantially evenly distributed on the fluorescent substance inside or on the fluorescent plate. Because of the irradiation, the fluorescent substance uniformly fluoresces, and the entire fluorescent plate emits surface light with uniform brightness and evenness. And
As the output of the cold-cathode tube is increased, the amount of light with which the fluorescent material of the fluorescent plate is irradiated is increased, the fluorescence is increased, and the emission brightness is increased.
【０００９】また、請求項２の高輝度面発光体のように
蛍光板と冷陰極管をハウジングに収納すると、冷陰極管
がハウジングで保護されて破損する心配がなくなり、更
に請求項３の高輝度面発光体のようにハウジングの内面
又は蛍光板の後面を光反射面にしてあると、蛍光が光反
射面で反射されて無駄なく前方へ放出されるため、発光
輝度が一層向上する。Further, when the fluorescent plate and the cold cathode tube are housed in the housing as in the high brightness surface light emitter of claim 2, there is no fear that the cold cathode tube is protected by the housing and is damaged, and the high brightness of claim 3 is further provided. When the inner surface of the housing or the rear surface of the fluorescent plate is a light-reflecting surface like a surface-emitting body, fluorescence is reflected by the light-reflecting surface and is emitted forward without waste, so that the emission brightness is further improved.
【００１０】[0010]
【発明の実施の形態】以下、図面を参照して本発明の好
ましい実施形態を説明する。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１１】図１は本発明の高輝度面発光体の一実施形
態を示す分解斜視図、図２はその拡大断面図であって、
１は透光性の蛍光板、２は冷陰極管、３は両側縁にコ字
形折曲部３ａ，３ａを有する前面が開口したハウジング
を示している。FIG. 1 is an exploded perspective view showing an embodiment of the high-intensity surface light-emitting device of the present invention, and FIG. 2 is an enlarged sectional view thereof.
Reference numeral 1 is a translucent fluorescent plate, 2 is a cold cathode tube, and 3 is a housing having U-shaped bent portions 3a, 3a on both side edges and having an open front surface.
【００１２】この実施形態の高輝度面発光体は、ハウジ
ング３両側縁のコ字形折曲部３ａ，３ａの内側に冷陰極
管２，２を収容すると共に、ハウジング３の前面開口部
から蛍光板１をハウジング３内に嵌込んで、蛍光板１の
両側端面沿いに冷陰極管２，２を配設したシンプルな構
造をしており、蛍光板１の前面１ａがハウジング３の前
面開口部に露出している。In the high-brightness surface light emitter of this embodiment, the cold cathode tubes 2 are housed inside the U-shaped bent portions 3a, 3a on both side edges of the housing 3, and the fluorescent plate 1 is opened from the front opening of the housing 3. Has a simple structure in which the cold cathode tubes 2 and 2 are disposed along both end faces of the fluorescent plate 1 by fitting the inside of the housing 3 into the housing 3, and the front surface 1a of the fluorescent plate 1 is exposed at the front opening of the housing 3. There is.
【００１３】蛍光板１としては、アクリル樹脂、ポリカ
ーボネート、ポリ塩化ビニル等の透光性樹脂板に蛍光染
料を含有させたものや、上記の透光性樹脂板の少なくと
も前面、好ましくは表面全体に、蛍光塗料を塗布して蛍
光塗膜を形成したものが使用される。透光性樹脂板は、
耐衝撃強度に優れたポリカーボネート板が特に好まし
い。該樹脂板は無色透明でも有色透明でもよいが、有色
透明であると、その色に近いカラフルな面発光が行われ
るので、景観の向上に役立つ。As the fluorescent plate 1, a translucent resin plate made of acrylic resin, polycarbonate, polyvinyl chloride or the like containing a fluorescent dye, or at least the front surface of the translucent resin plate, preferably the entire surface, The thing which applied the fluorescent paint and formed the fluorescent coating film is used. The translucent resin plate is
A polycarbonate plate having excellent impact strength is particularly preferable. The resin plate may be colorless and transparent or colored and transparent, but if colored and transparent, colorful surface emission close to that color is performed, which is useful for improving the landscape.
【００１４】また、冷陰極管２としては、放電によって
短波長の紫外線を発生する細長い棒状のＵＶランプ（ブ
ラックライト）等が使用され、その長さは蛍光板１の長
さと略同一であることが望ましい。このような冷陰極管
２は、消費電力が少ないので経済的である。この実施形
態では冷陰極管２を蛍光板１の両側端面に配設している
が、蛍光板１の幅が小さい場合には、何れか一方の側端
面のみに冷陰極管２を配設するようにしてもよい。As the cold-cathode tube 2, an elongated rod-shaped UV lamp (black light) or the like which emits ultraviolet rays of a short wavelength by discharge is used, and its length is substantially the same as the length of the fluorescent screen 1. desirable. Such a cold cathode tube 2 consumes less power and is economical. In this embodiment, the cold cathode tubes 2 are arranged on both end surfaces of the fluorescent plate 1, but when the width of the fluorescent plate 1 is small, the cold cathode tubes 2 are arranged only on one of the side end surfaces. May be.
【００１５】ハウジング３はアルミニウム等の金属や硬
質のプラスチックから成るもので、その両側縁には上述
したように冷陰極管２を収容するコ字形折曲部３ａ，３
ａが形成されており、ハウジング３の前面は溝状に開口
している。そして、このハウジング３の長手方向両端に
は端板３ｂ，３ｂが取付けられている。The housing 3 is made of a metal such as aluminum or a hard plastic, and has U-shaped bent portions 3a, 3 for accommodating the cold cathode tubes 2 on both side edges thereof as described above.
a is formed, and the front surface of the housing 3 is opened in a groove shape. End plates 3b, 3b are attached to both ends of the housing 3 in the longitudinal direction.
【００１６】このハウジング３の内面３ｃは、例えば白
色系や銀色系の光反射塗料を塗布する等の手段によって
光反射率の高い光反射面とすることが望ましく、このよ
うにハウジング内面３ｃを光反射面にすると、冷陰極管
２から出る光がハウジング内面３ｃで反射されて無駄な
く蛍光板２に入射し、この光を受けて蛍光物質から出る
蛍光もハウジング内面３ｃで反射されて無駄なく前方へ
放出されるため、発光輝度が向上する。なお、ハウジン
グ３がプラスチック製のものである場合は、酸化チタン
等の白色顔料を混入して、ハウジング内面３ｃの光反射
率を高めるようにしてもよい。The inner surface 3c of the housing 3 is preferably a light-reflecting surface having a high light reflectance, for example, by applying a white or silver-based light-reflecting paint. When the reflecting surface is used, the light emitted from the cold cathode fluorescent lamp 2 is reflected by the housing inner surface 3c and is incident on the fluorescent plate 2 without waste, and the fluorescent light emitted from the fluorescent material upon receiving this light is also reflected by the housing inner surface 3c and is forward without waste. Since it is emitted, the emission brightness is improved. When the housing 3 is made of plastic, a white pigment such as titanium oxide may be mixed to increase the light reflectance of the housing inner surface 3c.
【００１７】また、ハウジング３内面を反射面とする代
わりに、蛍光板１の後面１ｂに光反射塗料を塗布して蛍
光板１の後面１ｂを光反射面としたり、蛍光板１とハウ
ジング３の間に光反射シート（不図示）を挟みこむよう
にしてもよく、これらの場合も上記と同様に発光輝度が
向上する。Instead of using the inner surface of the housing 3 as a reflecting surface, a light-reflecting paint is applied to the rear surface 1b of the fluorescent plate 1 to make the rear surface 1b of the fluorescent plate 1 a light-reflecting surface. A reflection sheet (not shown) may be sandwiched, and in these cases as well, the light emission brightness is improved.
【００１８】このような構成の高輝度面発光体は、蛍光
板１の前面１ａが露出するように高速道路やトンネルの
側壁に埋設され、冷陰極管２に通電すると蛍光板１が面
発光して路側照明を行う。即ち、通電により冷陰極管２
で発生した短波長の光（紫外線）が蛍光板１の側端面か
ら入射して、蛍光板１の内部又は表面の蛍光物質に略均
一に照射され、蛍光物質が一様に蛍光を発して蛍光板１
全体が略均一な輝度でムラなく面発光する。その場合、
ハウジング３の内面３ｃや蛍光板１の後面１ｂを光反射
面にしてあると、既述したように発光輝度が向上し、更
に、冷陰極管２の出力を大きくすると、蛍光板１の蛍光
物質に照射される光量の増大により蛍光が強くなって発
光輝度が一層高められ、より明るい路側照明が行われ
る。従って本発明の高輝度面発光体を使用すると、交通
の安全性や道路の景観をより一層向上させることができ
る。The high-brightness surface light emitter having such a structure is buried in the side wall of a highway or a tunnel so that the front surface 1a of the fluorescent plate 1 is exposed. When the cold cathode tubes 2 are energized, the fluorescent plate 1 emits surface light and is on the roadside. Lighting. That is, by energizing, the cold cathode tube 2
The short-wavelength light (ultraviolet light) generated in 1 is incident from the side end surface of the fluorescent plate 1 and is applied substantially uniformly to the fluorescent substance inside or on the surface of the fluorescent plate 1, and the fluorescent substance uniformly emits fluorescence to emit fluorescent light.
The entire surface emits light uniformly with uniform brightness. In that case,
When the inner surface 3c of the housing 3 and the rear surface 1b of the fluorescent plate 1 are light reflecting surfaces, the emission brightness is improved as described above, and when the output of the cold cathode tube 2 is increased, the fluorescent substance of the fluorescent plate 1 is irradiated. Due to the increase in the amount of the emitted light, the fluorescence becomes stronger and the emission brightness is further enhanced, resulting in brighter roadside illumination. Therefore, the use of the high-luminance surface light emitting device of the present invention can further improve traffic safety and road scenery.
【００１９】以上、一実施形態を挙げて本発明の高輝度
面発光体を説明したが、本発明はこの実施形態のみに限
定されるものではなく、例えば、ハウジング３内に冷陰
極管２と蛍光板１を交互に複数組み並べて収容すること
により発光面積の大きい面発光体を構成する等、種々の
設計的変更を許容するものである。また、用途について
も、高速道路やトンネルの路側イルミネーションの他
に、ビルのアプローチ部分や壁面の照明、公園等のセメ
ント板敷設地面のイルミネーションなど、各種照明電飾
用途に使用できることは言うまでもない。Although the high-luminance surface light-emitting body of the present invention has been described with reference to the embodiment, the present invention is not limited to this embodiment, and, for example, the cold cathode tube 2 and the cold cathode tube 2 are provided in the housing 3. Various design changes are allowed, such as by constructing a surface light emitter having a large light emitting area by accommodating a plurality of fluorescent plates 1 arranged side by side. Also, needless to say, it can be used for various lighting and illumination applications such as illumination of roads on the approach and walls of buildings, illumination of cement plate laying grounds such as parks, in addition to roadside illumination of highways and tunnels.
【００２０】[0020]
【発明の効果】本発明の高輝度面発光体は、冷陰極管か
ら発する短波長の光を有効に利用して高輝度でムラのな
い面発光を行うことができ、しかも、消費電力が少ない
ので経済的であり、また、構造がシンプルであるため簡
単且つ安価に製造することができ、全体の厚みが小さい
ので取付スペースを小さくできる等、優れた効果を奏す
る。EFFECTS OF THE INVENTION The high-luminance surface light-emitting device of the present invention can effectively utilize short-wavelength light emitted from a cold cathode tube to perform high-luminance and even surface-emission, and has low power consumption. Therefore, it is economical, and because it has a simple structure, it can be manufactured easily and inexpensively, and since the overall thickness is small, the mounting space can be made small, and so on.
【図１】本発明の高輝度面発光体の一実施形態を示す分
解斜視図である。FIG. 1 is an exploded perspective view showing an embodiment of a high-intensity surface light emitter of the present invention.
【図２】同実施形態の高輝度面発光体の拡大断面図であ
る。FIG. 2 is an enlarged cross-sectional view of the high-luminance surface light emitter of the same embodiment.
１ 蛍光板 １ａ 蛍光板の前面 １ｂ 蛍光板の後面 ２ 冷陰極管 ３ ハウジング ３ｃ ハウジングの内面 1 Fluorescent Plate 1a Front of Fluorescent Plate 1b Rear of Fluorescent Plate 2 Cold Cathode Tube 3 Housing 3c Inner Surface of Housing
Claims (5)
を配設したことを特徴とする高輝度面発光体。1. A high-brightness surface light-emitting device, characterized in that cold cathode tubes are arranged along the side edges of a translucent fluorescent plate.
蛍光板の前面をハウジングの前面開口部に露出させたこ
とを特徴とする請求項１に記載の高輝度面発光体。2. A fluorescent plate and a cold cathode tube are housed in a housing,
2. The high brightness surface light emitter according to claim 1, wherein the front surface of the fluorescent plate is exposed at the front opening of the housing.
射面としたことを特徴とする請求項２に記載の高輝度面
発光体。3. The high brightness surface light emitter according to claim 2, wherein an inner surface of the housing or a rear surface of the fluorescent plate is a light reflecting surface.
脂板から成ることを特徴とする請求項１ないし請求項３
のいずれかに記載の高輝度面発光体。4. The fluorescent plate is a translucent resin plate in which a fluorescent substance is dispersed, and the fluorescent plate is a transparent resin plate.
A high-brightness surface light emitter according to any one of 1.
膜を形成した透光性樹脂板から成ることを特徴とする請
求項１ないし請求項３のいずれかに記載の高輝度面発光
体。5. The high-brightness surface light-emitting device according to claim 1, wherein the fluorescent plate is a translucent resin plate having a coating film of fluorescent paint formed on at least the front surface thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30193695A JPH09120706A (en) | 1995-10-25 | 1995-10-25 | Surface light emitter with high brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30193695A JPH09120706A (en) | 1995-10-25 | 1995-10-25 | Surface light emitter with high brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09120706A true JPH09120706A (en) | 1997-05-06 |
Family
ID=17902899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30193695A Pending JPH09120706A (en) | 1995-10-25 | 1995-10-25 | Surface light emitter with high brightness |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09120706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003515901A (en) * | 1999-11-30 | 2003-05-07 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Lighting equipment |
-
1995
- 1995-10-25 JP JP30193695A patent/JPH09120706A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003515901A (en) * | 1999-11-30 | 2003-05-07 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Lighting equipment |
| JP4782965B2 (en) * | 1999-11-30 | 2011-09-28 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Lighting device |
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| A02 | Decision of refusal |
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