JPH07201218A - Light emitting element - Google Patents

Light emitting element

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Publication number
JPH07201218A
JPH07201218A JP35459493A JP35459493A JPH07201218A JP H07201218 A JPH07201218 A JP H07201218A JP 35459493 A JP35459493 A JP 35459493A JP 35459493 A JP35459493 A JP 35459493A JP H07201218 A JPH07201218 A JP H07201218A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
light
body
matrix
transparent
light emitting
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.)
Granted
Application number
JP35459493A
Other languages
Japanese (ja)
Inventor
Minoru Ishiharada
Yasuhiko Matsumuro
Masato Sugimachi
Itsuo Tanuma
正登 杉町
康彦 松室
逸夫 田沼
石原田  稔
Original Assignee
Bridgestone Corp
株式会社ブリヂストン
Priority date (The priority date 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 date listed.)
Filing date
Publication date

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Abstract

PURPOSE:To manufacture a light emitting element having a large light emitting area and being capable of emitting light in all directions uniformly by forming a light scattering body out of transparent material having a different refraction index dispersed evenly in a transparent matrix and the matrix, surrounding the body with a thin wall hollow body made of light transmissive material. CONSTITUTION:In a transparent matrix 2a (polymethyl methacrylate or the like), a transparent material 2b (average particle dia. is about 0.01 to 50 microns) having a complete spherical form and having a different refraction of index from that of the matrix is dispersed uniformly to form a block shaped light scattering body 2. To the body 2, a light transmission tube 4 is connected, a hollow body 5 having a light transmissive characteristic and being subjected to rough treatment at its inner and outer faces to be a mat finished form (wall thickness is about 1 to 10mm) is arranged to surround the body 2 with a specified interval. It is thus possible to provide a light emitting body having a large light emitting area and emitting light in all directions evenly.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、光伝送チューブ等の先端に連結して光伝送チューブ等で伝送された光を均一に散乱、発光させることができ、装飾照明、水中照明、防爆照明、ディスプレー等の用途に好適に用いられる発光体に関する。 BACKGROUND OF THE INVENTION This invention is uniformly scatter the transmitted light in an optical transmission tube or the like coupled to the tip such as an optical transmission tube, it is possible to emit light, decorative lighting, underwater lighting, explosion-proof lighting, preferably it relates to a light-emitting material used in the applications such as a display.

【0002】 [0002]

【従来の技術及び発明が解決しようとする課題】従来より、図3に示すように、光伝送チューブや光ファイバー4の先端に光散乱体2をジョイント3で接続し、これらのチューブやファイバーからの光を光散乱体2に伝送し、この光散乱体2に入射した光を光散乱体2の全外周面から出射させる照明方法が知られており、これは装飾照明、水中照明、防爆照明、ディスプレー、特殊照明等の広い用途がある。 BACKGROUND OF INVENTION Problems to be Solved] Conventionally, as shown in FIG. 3, the light scatterer 2 connected by joints 3 to the distal end of the optical transmission tube and the optical fiber 4, from the tubes and fibers transmitting light to the light scatterer 2, the illumination method of the light incident on the light scatterer 2 is emitted from the entire outer peripheral surface of the light scatterer 2 are known, which decorative lighting, underwater lighting, explosion-proof lighting, display, there is a wide range of applications, special lighting, etc..

【0003】ここで、光散乱体2は、透明マトリックス2a中にこれと屈折率が異なる透明材料2bを均一に分散させたもので、例えばメタクリレート樹脂中に真球状シリコーン樹脂を分散させた材料で構成されており、このような材料をロッド状、球状、多面形状、板状等としたものである。 [0003] Here, the light scattering bodies 2, those which the refractive index in a transparent matrix 2a is obtained by uniformly dispersing the different transparent materials 2b, for example, a material obtained by dispersing the true spherical silicone resin in methacrylate resin is configured such materials rodlike, spherical, polyhedral, it is obtained by a plate-like shape.

【0004】このような光散乱体は、透明マトリックス自体は空気との界面で光の全反射が起こり、外部に光を漏らさないで光を伝送するものであるが、光がマトリックス中を進行する際に、このマトリックス中に均一分散された透明材料との界面で光が散乱し、透明マトリックスと空気との界面との角度が全反射条件を満たさない高角度成分ができ、この光が周面から出射して、光散乱体全体から光が出るものである。 [0004] Such light scattering may be a transparent matrix itself occurs surfactants in total reflection of light and air, but is intended to transmit light without leaking the light to the outside, light travels through the matrix when this interfacial scattering light with the matrix transparent material that is uniformly dispersed in the can high angle component angle does not satisfy the total reflection condition of the interface between the transparent matrix and the air, the light peripheral surface it is emitted from the one in which light is emitted from the entire light scatterer.

【0005】しかしながら、かかる光散乱体は、方向により輝度に強弱が生じる場合があり、また、発光面積の広い発光体が要望される場合、光散乱体を大きくすると、重くなり、簡単に設置できないという問題が生じる。 However, such light-scattering body may have strength in brightness caused by the direction, if the wide light emitter emission area is desired, increasing the light-scattering body, it becomes heavy, not easy to install a problem arises that.

【0006】本発明は、上記事情に鑑みなされたもので、発光面積が広く、しかも全方向に均一に発光する発光体を提供することを目的とする。 [0006] The present invention has been made in view of the above circumstances, the light emitting area is wide, moreover an object to provide a light emitter to emit light uniformly in all directions.

【0007】 [0007]

【課題を解決するための手段】本発明は、上記目的を達成するため、透明マトリックス中にこのマトリックスと屈折率の異なる透明材料が均一に分散された材料によりブロック状又は柱状に形成され、その一端入射部から入射された光を全外周面から出射させる光散乱体を、光透過可能な材料により形成された薄肉中空体で光散乱体から所定距離離間させて包囲してなること特徴とする発光体を提供する。 The present invention SUMMARY OF THE INVENTION In order to achieve the above object, is formed in a block shape or columnar of a material transparent materials with different the matrix and the refractive index is uniformly dispersed in a transparent matrix, the the light-scattering body to emit light incident from one end entrance portion from the entire outer peripheral surface, the predetermined distance is separated from the light scattering body is thin-walled hollow body formed by a light-permeable material, characterized by comprising surrounding it to provide a light-emitting body.

【0008】 [0008]

【作用】本発明の発光体は、ブロック状又は柱状に形成された光散乱体の一端部に光伝送チューブ等を連結し、 [Action] emitter of the present invention is connected to an optical transmission tube or the like to one end of the light-scattering body that is formed in a block shape or columnar,
このチューブ等から伝送され、一端部から入射した光を光散乱体内部で散乱させて光散乱体の全外周面から出射させるものであるが、この光散乱体を光透過可能な材料により形成された中空体で包囲したので、光散乱体から出射した光は、更に光散乱体を包囲する中空体を通過して外部に放散されることになり、この中空体で更に光を拡散して全方向に対して均一に光が拡散し、このため中空体自体があたかも発光体自体のような状態となるものである。 This is transmitted from the tube or the like, but the light entering from one end by scattered inside the light scattering body is intended to be emitted from the entire outer peripheral surface of the light scatterer is formed the light-scattering body of a light transmitting material capable since was surrounded by a hollow body, light emitted from the light scatterer, further would be dissipated to the outside through the hollow body surrounding the light-scattering body, and further diffuses the light in the hollow body total uniformly light is diffused to the direction, Therefore hollow body itself is one that if it were in a state such as a light emitting element itself. この場合、光散乱体の代わりに電球を用いると、中空体を通して電球が見えるといった不都合が生じるが、本発明の発光体にあっては光源(光散乱体)が見えるという不都合はないものである。 In this case, the use of bulbs instead of the light scatterer, although disadvantage bulb is visible through the hollow body occurs, in the light emitter of the present invention is intended not disadvantageously source (light scattering bodies) is visible .

【0009】従って、本発明の発光体は、発光部分が拡大し、発光面積が広がると共に、このように発光面積が大きくても、軽量である。 Accordingly, the light emitting element of the present invention, expanded light emitting portion, the light emitting area is widened, even if in this way the light-emitting area is large, it is lightweight.

【0010】 [0010]

【実施例】以下、本発明の実施例について図面を参照しながら具体的に説明する。 EXAMPLES The following specifically described with reference to the accompanying drawings embodiments of the present invention. 図1、図2は、本発明の発光体の一実施例を示すもので、この発光体1は、光散乱体2の一端部にジョイント3で光伝送チューブ4が連結されていると共に、光散乱体2から所定の距離をおいて薄肉の球状中空体5が光散乱体を包囲している構造を有する。 1, FIG. 2 shows an embodiment of a light emitting element of the present invention, the light emitter 1, a joint 3 at one end of the light scatterer 2 with the optical transmission tube 4 is connected, light from the scatterer 2 at a predetermined distance has a structure in which spherical hollow body 5 of the thin-walled surrounds the light scatterer.

【0011】上記光散乱体2は、透明マトリックス2a [0011] The light-scattering body 2, transparent matrix 2a
中にこれと異なる屈折率を有する透明材料2bを均一に分散させた材料で形成されている。 It is formed by uniformly material obtained by dispersing a transparent material 2b having the same refractive index different in. 具体的には、透明マトリックス2aとしては、ポリメチルメタクリレート、 Specifically, the transparent matrix 2a, polymethyl methacrylate,
ポリカーボネート、シリコーン、ポリスチレン等の有機系樹脂、ガラス、石英、透明セラミック等の無機系材料が使用でき、また、透明材料2bとしては、ポリメチルメタクリレート、ポリカーボネート、ポリスチレン、シリコーン樹脂等の有機系粉体、炭酸カルシウム、酸化チタン、ガラス、シリカ、単結晶が透明なセラミック粉体等の無機系粉体、更にはガス、気泡、真空ボイド等で構成することもできる。 Polycarbonates, silicones, organic resins such as polystyrene, glass, quartz, can be used inorganic materials of the transparent ceramics, etc., and, as the transparent material 2b, polymethyl methacrylate, polycarbonate, polystyrene, organic powders such as silicone resin can calcium carbonate, titanium oxide, glass, silica, inorganic powders such as single crystal transparent ceramic powders, more gas bubbles, be comprised of a vacuum voids or the like. この場合、形状は真球状が好ましく、その平均粒径は0.01〜50μm、特に0.1〜 In this case, the shape is preferably spherical, the average particle diameter 0.01 m to 50 m, particularly 0.1
10μm程度が好ましい。 About 10μm is preferable. 透明材料の分散量は、0.0 Dispersion amount of the transparent material, 0.0
01〜50重量部、好ましくは0.005〜1重量部が一般的である。 01-50 parts by weight, preferably generally 0.005 part by weight. 具体的に好ましい例を示すと、ポリメチルメタクリレートの透明マトリックス100重量部に平均粒径0.1〜10μmの真球状シリコーン樹脂を0. When showing a specific preferred embodiment, the average particle size 0.1~10μm transparent matrix 100 parts by weight of polymethyl methacrylate spherical silicone resin 0.
005〜0.5重量部を配合したもの、ポリメチルメタクリレート又はポリカーボネート100重量部に平均粒径0.5〜20μmの炭酸カルシウム、酸化チタン、ガラス等の粉末を0.005〜0.5重量部を配合したものを例示することができる。 005 to 0.5 obtained by mixing parts by weight, of calcium carbonate having an average particle diameter 0.5~20μm to 100 parts by weight of polymethyl methacrylate or polycarbonate, titanium oxide, powder 0.005-0.5 parts by weight of glass it can be exemplified those obtained by blending.

【0012】光散乱体2の形状も特に制限されないが、 [0012] The shape of the light scattering body 2 is not particularly limited,
図1のような球形、図2のような棒状の他、多面形等でも良い。 Spherical, as in FIG. 1, other rod-shaped as shown in FIG. 2, it may be polygonal shape or the like.

【0013】この光散乱体2と連結する光伝送チューブは、公知のものが使用でき、例えばコアの材料が液体、 [0013] The optical transmission tube connected with the light scatterer 2 may be used known ones, for example, the material of the core liquid,
固体、ゲル状態であるシングルタイプや、コア材料がプラスチック系、石英系、多成分系の光ファイバーを多数束ねたバンドルタイプのものを例示することができる。 Solid, single type or a gel state, the core material is a plastic-based, silica-based, optical fiber multi-component system can be mentioned as bundled bundle type number.

【0014】また、光散乱体2を包囲する中空体5は、 Further, the hollow body 5 surrounding the light scatterer 2,
光透過性であり、かつ光を散乱させる性質を有するものが好ましく、材質としては上記光散乱体と同様のものでも良い。 A light transmissive, and preferably has a property for scattering light, as the material may be similar to the light scattering body. あるいは透明な材料で成形し、その内面及び外面のいずれか一方又は双方の表面をサンドブラスト等で粗面化処理し、艶消し状としたものも好ましい。 Or molded in a transparent material, either or both of the surfaces of the inner and outer surfaces and roughened by sand blasting or the like, as is also preferred that a matte-like. また、 Also,
透明材質中に光を反射するアルミニウム箔やマイカ等の素材を混合したものでも良い。 May also a mixture of a material of aluminum foil or mica or the like that reflects light in a transparent material. 更に、図2に示すように屈折率の異なる透明材質5a、5bを貼り合わせて、各層の界面で屈折を生じさせたものでも良い。 Furthermore, different transparent material 5a refractive index as shown in FIG. 2, by bonding 5b, may be one that caused the refracted at the interface of the layers. このように透明材料の積層体で中空体5を構成する場合、もちろん2枚以上で構成しても良い。 When configuring the hollow body 5 in the laminate of such transparent material, of course it may be constituted by two or more.

【0015】中空体5の大きさ、形状、肉厚等は必要に応じて適宜選定されるが、例えば形状は、図1、2では球形としたが、これに限らず有底円筒状、多面形、三角錐等用途に応じて適宜な形状とすることができる。 [0015] The size of the hollow body 5, shape and thickness, etc. may be appropriately selected as needed, for example shape, was spherical in FIGS. 1 and 2, a bottomed cylindrical shape is not limited thereto, multifaceted shape, may be an appropriate shape in accordance with the triangular pyramid or the like applications. また、肉厚は、材質にもよるが、光散乱体からの光を十分に拡散させるため、1〜10mm、好ましくは1〜5m Also, the thickness depends on the material, in order to sufficiently diffuse the light from the light scatterer, 1 to 10 mm, preferably 1~5m
m程度が良い。 About m is good.

【0016】 [0016]

【発明の効果】本発明の発光体は、発光面積が大きいと共に、全方向に光を放射することができる。 Luminescent material of the present invention exhibits, with light-emitting area is large, it is possible to emit light in all directions.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の発光体の一実施例を示す断面図である。 1 is a cross-sectional view showing an embodiment of a light emitter of the present invention.

【図2】本発明の発光体の他の実施例を示す断面図である。 It is a sectional view showing another embodiment of a light emitting element of the present invention; FIG.

【図3】従来の発光体を示す断面図である。 3 is a sectional view showing a conventional light emitting element.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 発光体 2 光散乱体 2a 透明マトリックス 2b 透明材料 3 ジョイント 4 光伝送チューブ 5 中空体 1 luminous body 2 light scatterer 2a transparent matrix 2b transparent material 3 joints 4 optical transmission tube 5 hollow body

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl. 6識別記号 庁内整理番号 FI 技術表示箇所 G02B 6/00 331 376 G09F 9/30 365 C 7610−5G ────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. 6 identification symbol Agency Docket No. FI art display portion G02B 6/00 331 376 G09F 9/30 365 C 7610-5G

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 透明マトリックス中にこのマトリックスと屈折率の異なる透明材料が均一に分散された材料によりブロック状又は柱状に形成され、その一端入射部から入射された光を全外周面から出射させる光散乱体を、光透過可能な材料により形成された薄肉中空体で光散乱体から所定距離離間させて包囲してなること特徴とする発光体。 1. A formed in a block shape or columnar of a material transparent materials with different the matrix and the refractive index is uniformly dispersed in a transparent matrix, is emitted from the entire outer peripheral surface of incident light from one end entrance portion the light scatterer, light emitter, characterized by comprising surrounding by a predetermined distance apart from the light scattering body is thin-walled hollow body formed of a light transmitting material.
JP35459493A 1993-12-28 1993-12-28 Light emitting element Granted JPH07201218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35459493A JPH07201218A (en) 1993-12-28 1993-12-28 Light emitting element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35459493A JPH07201218A (en) 1993-12-28 1993-12-28 Light emitting element

Publications (1)

Publication Number Publication Date
JPH07201218A true true JPH07201218A (en) 1995-08-04

Family

ID=18438613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35459493A Granted JPH07201218A (en) 1993-12-28 1993-12-28 Light emitting element

Country Status (1)

Country Link
JP (1) JPH07201218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7588342B2 (en) 2006-04-24 2009-09-15 Energy Focus, Inc. Lighted refrigerated display case with remote light source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7588342B2 (en) 2006-04-24 2009-09-15 Energy Focus, Inc. Lighted refrigerated display case with remote light source
US8348488B2 (en) 2006-04-24 2013-01-08 Energy Focus, Inc. Elongated solid luminaire with light-emitting portion with first and second extraction regions spatially divided along the longitudinal axis thereof

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