JPH07198950A - Optical scattering material - Google Patents

Optical scattering material

Info

Publication number
JPH07198950A
JPH07198950A JP35459193A JP35459193A JPH07198950A JP H07198950 A JPH07198950 A JP H07198950A JP 35459193 A JP35459193 A JP 35459193A JP 35459193 A JP35459193 A JP 35459193A JP H07198950 A JPH07198950 A JP H07198950A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
light
matrix
body
end
scattering
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
Application number
JP35459193A
Other languages
Japanese (ja)
Inventor
Minoru Ishiharada
Yasuhiro Koike
Toshio Naito
Masato Sugimachi
Itsuo Tanuma
壽夫 内藤
康博 小池
正登 杉町
逸夫 田沼
石原田  稔
Original Assignee
Bridgestone Corp
Yasuhiro Koike
康博 小池
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

Links

Abstract

PURPOSE: To uniformly scatter light transmitted through an optical transmission tube or the like as much as possible for the whole length of the scattering body and to obtain uniform luminance.
CONSTITUTION: The optical scattering material 1 is a cylindrical body comprising a transparent matrix and a transparent material uniformly dispersed in the matrix. The transparent material dispersed has different refractive index from that of the matrix. Light is made to enter through the one end of the body in the longitudinal direction and emitted through the whole surface of the body. This cylindrical body is formed as gradually tapered from the one end of length or from near the center of the length the other end.
COPYRIGHT: (C)1995,JPO

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散乱する散乱体として使用され、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光散乱体に関する。 BACKGROUND OF THE INVENTION The present invention is coupled to the tip such as an optical transmission tube is used as a scatterer which scatters the transmitted light in the optical transmission tube or the like, decorative lighting, underwater lighting, explosion-proof lighting, displays, etc. preferably about light scattering member used in the application.

【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、光伝送チューブや光ファイバーの先端に光散乱体をジョイントで接続し、これらのチューブやファイバーからの光を光散乱体に伝送し、この光散乱体に入射した光を光散乱体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, a light-scattering body connected by a joint to the tip of the optical transmission tube or an optical fiber transmits the light from the tubes and fiber light-scattering body, this known illumination method for emitting light incident on the light-scattering body from the light scatterer entire outer peripheral surface, which is decorative lighting, underwater lighting, explosion-proof lighting, displays, there is a wide range of applications special lighting or the like.

【0003】ここで、光散乱体は、透明マトリックス中にこれと屈折率が異なる透明材料を均一に分散させたもので、例えばポリメタクリレート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 body, in which it and the refractive index in the transparent matrix is ​​dispersed uniformly different transparent materials, for example, in the polymethacrylate is a material obtained by dispersing the true spherical silicone resin cage, such materials rodlike, spherical, polyhedral, 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、光散乱体を図4に示したような柱状体Aとした場合、ジョイント2で連結された光伝送チューブ3等の光源からの距離が遠くなるに従い輝度が下がり、散乱が不均一になるという問題がある。 However, when the columnar body A as shown the light scatterer 4 lowers the luminance as the distance from the light source such as an optical transmission tube 3 connected with the joint 2 becomes longer, scattering not there is a problem that becomes uniform.

【0006】このため光源からの距離が長くなるに従い光を散乱させる凹凸を設けたり、分散させる材料を光源からの距離が長くなるに従い増加させ、散乱光強度の均一化を図ることが行われているが、散乱の均一性、方向性は不十分であった。 [0006] or provided irregularities for scattering light in accordance with the distance from the for source becomes longer, the material to be dispersed distance from the light source is increased in accordance becomes longer, it is performed to achieve uniform scattered light intensity It is, but uniformity of the scattering direction was insufficient.

【0007】本発明は、上記事情に鑑みなされたもので、光源からの距離に対して光の散乱が可及的に均一である柱状の光散乱体を提供することを目的とする。 [0007] The present invention has been made in view of the above circumstances, and an object thereof is to provide a columnar light scattering scattering of light is as uniform as possible with respect to the distance from the light source.

【0008】 [0008]

【課題を解決するための手段及び作用】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柱状体からなり、その長さ方向一端部から光が入射されると共に、この光を全外周面から出射させる光散乱体において、上記柱状体が、その長さ方向一端部乃至長さ方向ほぼ中央部から長さ方向他端部にかけて漸次先細になるように形成されたことを特徴とする光散乱体を提供する。 SUMMARY and operation for solving] The present invention, in order to achieve the above object, a transparent material having a different refractive index and the matrix is ​​made from a homogeneous dispersed columnar body in a transparent matrix, its length with light enters from one end, in the light scatterer to emit the light from the entire outer peripheral surface, said columnar body is subjected lengthwise other end from the lengthwise end portion to the length direction substantially central portion providing a light scattering body, characterized in that it is formed so as to gradually tapers.

【0009】 [0009]

【作用】本発明の光散乱体は、柱状体で、その一端部に光伝送チューブや光ファイバーなど(光源)を連結して、これから伝送された光を透明マトリックス中に分散された透明材料で光を散乱させ、入射した光を全外周面から出射させるものであるが、柱状体をその長さ方向一端部乃至長さ方向ほぼ中央部から長さ方向他端部にかけて漸次先細になるように形成したので、少なくともほぼ中央部より先側において柱状体の外面が長さ方向に対し漸次下向傾斜し、断面積が減少していくため、この柱状体の長さ方向に平行に進行する光のうち一定の割合がこの傾斜面で反射又は出射し、更に反射した光は他面側で反射する際により鈍角となって出射し易くなり、従って、柱状体の表面で全反射する光成分が減少し、この傾斜を持たせた部分でよ [Action] light scatterer of the present invention is a columnar body, by connecting such an optical transmission tube or an optical fiber (light source) on one end, the light in the transparent material dispersed in a transparent matrix and light therefrom transmitted the scatter, although incident light is intended to be emitted from the entire outer peripheral surface formed so as to taper gradually the columnar body toward the longitudinal direction other end portion from the longitudinal end portion to the length direction substantially central portion since the, gradually downwardly inclined relative to the outer surface length direction of the columnar body at least the front side from the substantially central portion, since the cross-sectional area decreases, the light traveling parallel to the longitudinal direction of the columnar body the proportion of out constant is reflected or emitted by the inclined surface, further light reflected becomes easily emitted as obtuse by when reflected by the other surface, thus, light components totally reflected by the surface of the columnar body decreases and, a part that was have this inclination 多く外部に散乱させることができる。 It is possible to many scattered outside. しかも傾斜角度に応じて一定の割合で散乱光を増加させることができ、簡単で確実に光源から離れた部分での輝度の低下を防止して光散乱体の全長における輝度を可及的に均一化することができる。 Moreover it is possible to increase the scattered light at a fixed rate according to the inclination angle, simple and reliable as possible a uniform luminance while preventing a decrease in luminance at a portion away from the light source in the entire length of the light scatterer it can be of.

【0010】 [0010]

【実施例】以下、本発明の実施例について具体的に説明すると、図1、2は本発明の光散乱体の一実施例を示すもので、図1の光散乱体1は、一端部から他端部にかけて漸次先細りに形成された傾斜面1aを有する円柱状体であり、図2の光散乱体1は、長さ方向ほぼ中間部から他端部にかけて漸次先細りに形成された傾斜面1aを有する円柱状体であり、その一端部(最大径部分)がジョイント2で光伝送チューブ3(光源)と連結されている。 EXAMPLES Hereinafter, specific examples of the present invention will be described, FIGS. 1 and 2 show an embodiment of the light scatterer of the present invention, the light scattering bodies 1 of Figure 1, from one end a cylindrical body having an inclined surface 1a which is progressively formed tapered toward the other end, the light scatterer 1 in Figure 2, the inclined surface 1a formed gradually tapered toward the other end from the generally longitudinally intermediate portion a cylindrical body having an one end thereof (maximum diameter portion) is connected to the optical transmission tube 3 (the light source) in the joint 2.

【0011】この場合、光散乱体1の断面形状は、円形、楕円形、多角形、長方形、薄板形等いずれでも良い。 [0011] In this case, the cross-sectional shape of the light scatterer 1 is circular, elliptical, polygonal, rectangular, may be any sheet form or the like. また、長さは適宜選定されるが、一般に3〜100 Further, although the length is appropriately selected generally from 3 to 100
cm、特に5〜50cmの範囲、一端部側の最大の断面積が0.05〜100cm 2 、特に1.5〜20cm 2の範囲が一般的である。 cm, in particular in the range of 5 to 50 cm, the maximum of the cross-sectional area of the one end portion side 0.05~100cm 2, in particular in the range of 1.5~20Cm 2 are common. 漸次先細りにする割合は光散乱体を構成するマトリックスや透明材料、更には光散乱体の長さ等によって適宜選定されるが、長さ方向10〜10 Matrix or transparent material ratio constituting the light-scattering body that gradually tapered, although more are suitably selected according to the length or the like of the light scatterer, longitudinally 10 to 10
0%、好ましくは15〜80%断面積が最終的に現象するように漸次先細りに形成することが良い。 0%, preferably be formed in a tapered gradually so as 15 to 80% cross-sectional area is eventually phenomenon. なお、図2 It should be noted that FIG. 2
のように、光散乱体の中間部から漸次先細りにする場合、先細りを開始する箇所は光散乱体の一端部(光源) As in the case of gradually tapering from the middle portion of the light scatterer, point to initiate tapered end portion of the light scatterer (source)
から全長の1〜80%、好ましくは20〜50%の範囲とすることが良い。 From 1 to 80% of the total length, preferably in the range of 20-50%.

【0012】本発明の光散乱体1を構成する材料において、例えば図3中の透明マトリックス1bとしては、ポリメチルメタクリレート、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を用いることができ、また、 [0012] In the material constituting the light-scattering body 1 of the present invention, for example as a transparent matrix 1b in FIG. 3, polymethyl methacrylate, polycarbonate, silicone, organic resins such as polystyrene, glass, quartz, transparent ceramics may be an inorganic material, also,
これに分散される透明材料1c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、形状は真球状が好ましく、その平均粒径は0.01〜50μm、特に0.1〜10μm程度が好ましい。 As the transparent material 1c dispersed thereto, polymethyl methacrylate, polycarbonate, polystyrene, organic powder, calcium carbonate such as silicone resin, titanium oxide, glass, silica, single crystal inorganic such as transparent ceramic powders powder, and further can also be configured gas bubbles, a vacuum such as voids, the shape is preferably spherical, average particle size is 0.01 m to 50 m, especially about 0.1~10μm are preferred. 透明材料の分散量は、0.001〜50重量部、好ましくは0.005〜1重量部が一般的である。 Dispersion amount of the transparent material, 0.001 to 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〜 When showing a specific preferred embodiment, an average particle diameter of 0.1 to transparent matrix 100 parts by weight of polymethyl methacrylate
10μmの真球状シリコーン樹脂を0.005〜0.5 The spherical silicone resin 10 [mu] m 0.005 to 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0.5〜20 Which was blended parts by weight, average particle diameter 0.5 to 20 to 100 parts by weight of polymethyl methacrylate or polycarbonate
μm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重量部配合したものなどを例示することができる。 Calcium carbonate [mu] m, titanium oxide, a powder of glass or the like can be exemplified such as those obtained by blending 0.005 to 0.5 parts by weight.

【0013】本発明の光散乱体を製造する場合、透明マトリックスと透明材料となる粉末を混練した後、押出成形、射出成形、圧縮成形、注型等により所定の形状に成形する方法、あるいはマトリックスが有機系樹脂の場合、重合性モノマーに透明材料となる粉体を混合した後、塊状重合等の重合方法で重合して直接所定の形状の形に重合するか、あるいは懸濁重合等の重合方法により粉体の形で重合体を得た後、これを成形して所定の形にする方法等を例示することができる。 [0013] When producing the light scatterer of the present invention, after kneading the powder of the transparent matrix and the transparent material, a method for molding extrusion molding, injection molding, compression molding, into a predetermined shape by casting or the like or a matrix, If is an organic resin, after mixing the powder becomes transparent material in a polymerizable monomer, or polymerized in the form of direct predetermined shape by polymerizing in a polymerization process of bulk polymerization, or suspension polymerization, such as polymerization after obtaining the polymer in the form of a powder by the method, by molding it may be exemplified a method in which a predetermined shape.

【0014】本発明の光散乱体の使用例としては、アップランプ、ルームランプ、読書灯等の自動車内の天井の各種照明、トランクルーム内の照明、メーター類の照明、各種スイッチの照明等のダッシュボードにおける照明、グローブボックスや灰皿の照明、鍵穴の照明、ナンバープレートの照明、ナンバープレートのバックライト、各種エンブレムの照明、アンテナポールの先端部発光、コーナーポールやバンパーモールを線状に発光させるなどの各種照明及び/又は発光体としての用途が挙げられる。 [0014] As an example of the use of light scattering body of the present invention, up lamps, room lamps, ceiling of various types of lighting in the car reading lamp or the like, the lighting in the trunk room, the lighting of the meter class, a dash of lighting, etc. of various switches lighting in the board, the illumination of the glove box, an ashtray, keyhole illumination, illumination of the license plate, the license plate of the backlight, illumination various emblems, antenna pole tip emission, such as by emitting a corner pole or bumper molding linearly It includes the various applications as illumination and / or light emitters. この場合、車内に配置された専用の光源、ヘッドランプ、車幅灯等の既設の光源から光を入射することにより散乱光を得ることができる。 In this case, it is possible to dedicated light source disposed in the vehicle headlamp, by incidence of light from existing light sources such as side lamps get scattered light.

【0015】また、上記用途の他に広告灯、看板、光る壁、天井、OA機器のバックライト等に平面体として、 [0015] In addition to advertising light of the above applications, signs, glowing wall, ceiling, as a planar body in a back light or the like of the OA equipment,
クロゼット等で用いる光るハンガー、手すり、自転車等のフレーム、電気スタンドなどに棒状体として使用することもできる。 It is also possible to use the hanger glow used in closets or the like, the handrail frame of the bicycle, such as a desk lamp as rod-shaped body. 更に、マリンホース、非常用誘導ライン、ゴルフ場のヤード表示、プールやトラックのライン表示などのラインマーカーとして使用することもでき、 In addition, it is possible to marine hoses, emergency induction line, golf course of the yard display, also be used as a line marker such as a line display of the pool and the track,
また、紫外線を散乱させることで、バイオ槽などの培養用照明、池、プール、浄水場などの水の殺菌、浄化等の用途に使用することもできる。 Further, by scattering the ultraviolet can lighting culture bio tank, pond, pool, disinfection of water, such as water purification plants, also be used in applications purification, and the like.

【0016】 [0016]

【発明の効果】本発明の光散乱体は、光伝送チューブ等から伝送された光を全長に亘り可及的に均一に散乱して輝度が均一化されるものである。 Light scatterer of the present invention according to the present invention are those in which the luminance is made uniform by the light transmitted from the optical transmission tube or the like uniformly scattered as possible over the entire length.

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

【図1】本発明の光散乱体の一例を示す断面図である。 Is a sectional view showing an example of the light scatterer of the present invention; FIG.

【図2】本発明の光散乱体の他の例を示す断面図である。 2 is a sectional view showing another example of the light scatterer of the present invention.

【図3】光散乱体中で入射した光が散乱する様子を示す部分断面図である。 [3] The light incident in the light scatterer in is a partial sectional view showing a state in which scattering.

【図4】従来の光散乱体を示す断面図である。 4 is a cross-sectional view of a conventional optical scatterers.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 光散乱体 1a 傾斜面 1b 透明マトリックス 1c 透明材料 2 ジョイント 3 光伝送チューブ 1 light scatterer 1a inclined surface 1b transparent matrix 1c transparent material 2 joint 3 optical transmission tube

───────────────────────────────────────────────────── フロントページの続き (72)発明者 田沼 逸夫 埼玉県狭山市柏原3405−181 (72)発明者 内藤 壽夫 神奈川県川崎市宮前区馬絹969−1 ────────────────────────────────────────────────── ─── of the front page continued (72) inventor Itsuo Tanuma Saitama Prefecture Sayama Kashiwabara 3405-181 (72) inventor Toshio Naito Kawasaki City, Kanagawa Prefecture Miyamae-ku, Maginu 969-1

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柱状体からなり、その長さ方向一端部から光が入射されると共に、この光を全外周面から出射させる光散乱体において、上記柱状体が、その長さ方向一端部乃至長さ方向ほぼ中央部から長さ方向他端部にかけて漸次先細になるように形成されたことを特徴とする光散乱体。 1. A a transparent matrix columnar body transparent materials with different refractive index and the matrix is ​​uniformly dispersed in, the light is incident from the lengthwise end, the light from the entire outer peripheral surface in light scatterer for emitting, the columnar bodies, light scatterers, characterized in that it is formed to be gradually narrower toward the longitudinal direction other end portion from the longitudinal end portion to the length direction substantially central portion .
JP35459193A 1993-12-28 1993-12-28 Optical scattering material Pending JPH07198950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35459193A JPH07198950A (en) 1993-12-28 1993-12-28 Optical scattering material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35459193A JPH07198950A (en) 1993-12-28 1993-12-28 Optical scattering material

Publications (1)

Publication Number Publication Date
JPH07198950A true true JPH07198950A (en) 1995-08-01

Family

ID=18438595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35459193A Pending JPH07198950A (en) 1993-12-28 1993-12-28 Optical scattering material

Country Status (1)

Country Link
JP (1) JPH07198950A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033084A1 (en) * 2000-09-13 2003-04-24 Photona Co., Ltd Led marker for golf course and led marking method for golf course using it
US7164819B2 (en) 2003-03-10 2007-01-16 Fiberstars, Inc. Side-light extraction by light pipe-surface alteration and light-extraction devices extending radially beyond the outer cladding
JP2008159453A (en) * 2006-12-25 2008-07-10 Toshiba Lighting & Technology Corp Light source device, and lamp having same
US7588342B2 (en) 2006-04-24 2009-09-15 Energy Focus, Inc. Lighted refrigerated display case with remote light source
JP2012194310A (en) * 2011-03-16 2012-10-11 Sekisui Chem Co Ltd Rod shaped plastic material, polymerization container and polymerization device for obtaining the same and manufacturing method for optical transmission body using rod shaped plastic material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033084A1 (en) * 2000-09-13 2003-04-24 Photona Co., Ltd Led marker for golf course and led marking method for golf course using it
US7164819B2 (en) 2003-03-10 2007-01-16 Fiberstars, Inc. Side-light extraction by light pipe-surface alteration and light-extraction devices extending radially beyond the outer cladding
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
JP2008159453A (en) * 2006-12-25 2008-07-10 Toshiba Lighting & Technology Corp Light source device, and lamp having same
JP2012194310A (en) * 2011-03-16 2012-10-11 Sekisui Chem Co Ltd Rod shaped plastic material, polymerization container and polymerization device for obtaining the same and manufacturing method for optical transmission body using rod shaped plastic material

Similar Documents

Publication Publication Date Title
US6874924B1 (en) Illumination device for simulation of neon lighting
US6991359B2 (en) Surface light source and light guide plate having differently configured dots
US20050052885A1 (en) Structure of LED decoration lighting set
US6417831B2 (en) Diffused light controlling optical sheet, back light device and liquid crystal display apparatus
US4998804A (en) Transmissive liquid crystal display device
US4422719A (en) Optical distribution system including light guide
US5810464A (en) Surface light source device of side light type
US20040228109A1 (en) Light guide module having uniform light diffusion arrangement and method for making the same
US20060140562A1 (en) Side-scattering light guides
US20040196648A1 (en) Side scattering polymer light guide and method of manufacture
JP2000011723A (en) Sheet-like lighting system
US5528709A (en) Corner supply type plane light source device
JPH01172801A (en) Light diffusion plate having light transmittability
US6152570A (en) Surface light source device
US20110063872A1 (en) Side lighting optical fiber
US5744534A (en) Light scattering material
JP2000147264A (en) Light control sheet and surface light source device using the same
US20050052871A1 (en) Light-emitting diode and backlight system using the same
JPH0736037A (en) Light scattering and guiding light source device and liquid crystal display device
KR20010039013A (en) A light guide plate in a backlight unit for LCD
US7085460B2 (en) Light guide plate with diffusion dots having scattering particles and surface light source unit incorporating the light guide plate
US6309080B1 (en) Surface light source device and liquid crystal display
EP0457009A2 (en) Light reflective body, method of manufacturing the same, and use for the same
CN102121668A (en) Light guide plate and backlight module
JP2005285702A (en) Translucent member and lighting system using it