JPH07198950A - Optical scattering material - Google Patents
Optical scattering materialInfo
- 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
- Japan
- Prior art keywords
- light
- matrix
- scatterer
- transparent
- lighting
- 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
- 239000000463 material Substances 0.000 title abstract description 5
- 230000003287 optical effect Effects 0.000 title abstract description 4
- 239000011159 matrix material Substances 0.000 claims abstract description 19
- 239000012780 transparent material Substances 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 239000000843 powder Substances 0.000 description 8
- 238000000149 argon plasma sintering Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000012662 bulk polymerization Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【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 1. Field of the Invention The present invention is used as a scatterer which is connected to the tip of a light transmission tube or the like to scatter light transmitted by the light transmission tube or the like, and is used for decorative lighting, underwater lighting, explosion-proof lighting, display, etc. The present invention relates to a light scatterer suitable for use in
【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。2. Description of the Related Art Conventionally, a light scatterer is connected to the tip of an optical transmission tube or an optical fiber with a joint, and light from these tubes or fibers is transmitted to the light scatterer. An illumination method is known in which light incident on a light scatterer is emitted from the entire outer peripheral surface of the light scatterer, and has a wide range of applications such as decorative lighting, underwater lighting, explosion-proof lighting, display, and special lighting.
【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。Here, the light scatterer is a transparent matrix in which a transparent material having a different refractive index is uniformly dispersed. For example, the light scatterer is made of polymethacrylate in which a spherical silicone resin is dispersed. However, such materials are rod-shaped, spherical, polyhedral, plate-shaped or the like.
【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。In such a light scatterer, the transparent matrix itself causes total reflection of light at the interface with the air and transmits the light without leaking it to the outside, but the light travels in the matrix. At this time, light is scattered at the interface with the transparent material that is uniformly dispersed in this matrix, and a high-angle component where the angle between the interface of the transparent matrix and the air does not satisfy the condition of total reflection is created. And the 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 light scatterer is the columnar body A as shown in FIG. 4, the brightness decreases as the distance from the light source such as the light transmission tube 3 connected by the joint 2 increases, and the scattering is unsatisfactory. There is a problem that it 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。For this reason, unevenness for scattering light is provided as the distance from the light source increases, and the material for dispersion is increased as the distance from the light source increases to make the scattered light intensity uniform. However, the uniformity and directionality of scattering were 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。The present invention has been made in view of the above circumstances, and an object thereof is to provide a columnar light scatterer in which light is scattered as uniformly as possible with respect to a distance from a 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。In order to achieve the above object, the present invention comprises a columnar body in which a transparent material having a refractive index different from that of the matrix is uniformly dispersed in a transparent matrix, and the columnar body has a lengthwise direction. In a light scatterer that allows light to enter from one end and to be emitted from the entire outer peripheral surface, the columnar body extends from one end in the lengthwise direction to approximately the center in the lengthwise direction to the other end in the lengthwise direction. Provided is a light-scattering body characterized by being formed so as to be gradually tapered.
【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り多く外部に散乱させることがで
きる。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。The light scatterer of the present invention is a columnar body, and a light transmission tube, an optical fiber or the like (light source) is connected to one end of the columnar body, and the light transmitted from the light scatterer is transmitted by a transparent material dispersed in a transparent matrix. Is scattered and the incident light is emitted from the entire outer peripheral surface, but the columnar body is formed so as to gradually taper from one end in the lengthwise direction to approximately the center in the lengthwise direction to the other end in the lengthwise direction. Therefore, the outer surface of the columnar body gradually inclines downward with respect to the lengthwise direction at least in front of the central portion, and the cross-sectional area decreases, so that the light traveling in parallel to the lengthwise direction of the columnar body is reduced. A certain proportion of this is reflected or emitted by this inclined surface, and the reflected light becomes an obtuse angle when it is reflected by the other surface side, making it easier to emit, and therefore the light component totally reflected on the surface of the columnar body is reduced. Then, in the part with this inclination It is possible to many scattered outside. Moreover, it is possible to increase the scattered light at a constant rate according to the tilt angle, and it is possible to easily and reliably prevent the brightness from decreasing in the part away from the light source and make the brightness of the entire length of the light scatterer as uniform as possible. Can be converted.
【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 Examples of the present invention will be specifically described below. FIGS. 1 and 2 show an example of the light scatterer of the present invention. The light scatterer 1 of FIG. The light-scattering body 1 of FIG. 2 is a cylindrical body having an inclined surface 1a that is gradually tapered toward the other end, and the light scatterer 1 of FIG. 2 has an inclined surface 1a that is gradually tapered from the substantially middle portion in the length direction to the other end. Is a columnar body having one end (maximum diameter portion) connected to the light transmission tube 3 (light source) by 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。また、長さは適宜選定されるが、一般に３〜１００
ｃｍ、特に５〜５０ｃｍの範囲、一端部側の最大の断面
積が０．０５〜１００ｃｍ2、特に１．５〜２０ｃｍ2の
範囲が一般的である。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
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。なお、図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）
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。In this case, the sectional shape of the light scatterer 1 may be any of a circle, an ellipse, a polygon, a rectangle, a thin plate and the like. The length is appropriately selected, but is generally 3 to 100.
cm, particularly in the range of 5 to 50 cm, and the maximum cross-sectional area on the one end side is generally in the range of 0.05 to 100 cm 2 , particularly 1.5 to 20 cm 2 . The ratio of tapering gradually is appropriately selected depending on the matrix and the transparent material constituting the light scatterer, the length of the light scatterer, and the like.
It is preferable that the cross-sectional area of 0%, preferably 15 to 80% is gradually tapered so that the final phenomenon occurs. Note that FIG.
When tapering gradually from the middle part of the light scatterer as shown in, the point where the taper starts is one end (light source) of the light scatterer.
To 1 to 80% of the total length, preferably 20 to 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、
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。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。
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０．００５〜０．５
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０．５〜２０
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。In the material constituting the light-scattering body 1 of the present invention, for example, as the transparent matrix 1b in FIG. 3, organic resin such as polymethylmethacrylate, polycarbonate, silicone, polystyrene, glass, quartz, transparent ceramic, etc. Inorganic materials can be used, and
Examples of the transparent material 1c dispersed therein include organic powders such as polymethylmethacrylate, polycarbonate, polystyrene, and silicone resin, inorganic powders such as calcium carbonate, titanium oxide, glass, silica, and ceramic powders having a transparent single crystal. It may be composed of powder, further gas, air bubbles, vacuum voids, etc., and its shape is preferably spherical, and its average particle diameter is preferably 0.01 to 50 μm, particularly preferably 0.1 to 10 μm. The amount of the transparent material dispersed is generally 0.001 to 50 parts by weight, preferably 0.005 to 1 part by weight.
As a concrete example, 100 parts by weight of a transparent matrix of polymethylmethacrylate has an average particle size of 0.1 to
0.005 to 0.5 of 10μm spherical silicone resin
A mixture of 100 parts by weight of polymethylmethacrylate or polycarbonate, and an average particle size of 0.5 to 20
It is possible to exemplify a mixture of 0.005 to 0.5 parts by weight of powder of μm of calcium carbonate, titanium oxide, glass and the like.
【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。In the case of producing the light-scattering body of the present invention, the transparent matrix and the powder to be the transparent material are kneaded and then molded into a predetermined shape by extrusion molding, injection molding, compression molding, casting, or the matrix. When the organic resin is, the polymerizable monomer is mixed with the powder to be the transparent material and then polymerized by a polymerization method such as bulk polymerization to directly polymerize into a predetermined shape, or polymerization such as suspension polymerization. Examples of the method include a method in which a polymer is obtained in the form of powder by the method and then the polymer is molded into 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。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。Examples of the use of the light-scattering body of the present invention include dashes such as up lamps, room lamps, reading lights and the like in the ceiling of an automobile, lighting in the trunk room, lighting of meters, lighting of switches and the like. Lighting for boards, lighting for glove boxes and ashtrays, lighting for keyholes, lighting for license plates, backlight for license plates, lighting for various emblems, light emission at the tip of antenna poles, linear lighting of corner poles and bumper moldings, etc. And various uses as a lighting and / or a light emitting body. In this case, scattered light can be obtained by injecting light from an existing light source such as a dedicated light source arranged in the vehicle, a headlamp, or a sideways 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、
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。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、
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。In addition to the above applications, as a flat body for advertising lights, signboards, shining walls, ceilings, backlights of OA equipment, etc.,
It can also be used as a rod-shaped body for a glowing hanger used in a closet, a handrail, a frame of a bicycle, a table lamp, and the like. Furthermore, it can be used as a line marker for marine hose, emergency guide line, golf course yard display, pool or truck line display, etc.
Further, by scattering ultraviolet rays, it can be used for lighting such as culture tanks for bio tanks, sterilization and purification of water in ponds, pools, water purification plants 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。The light scatterer of the present invention scatters the light transmitted from the light transmission tube or the like as evenly as possible over the entire length to make the brightness uniform.
【図１】本発明の光散乱体の一例を示す断面図である。FIG. 1 is a cross-sectional view showing an example of a light scatterer of the present invention.
【図２】本発明の光散乱体の他の例を示す断面図であ
る。FIG. 2 is a cross-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。FIG. 3 is a partial cross-sectional view showing how incident light is scattered in a light scatterer.
【図４】従来の光散乱体を示す断面図である。FIG. 4 is a cross-sectional view showing a conventional light scatterer.
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 Light 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 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Itsuo Tanuma 3405-181 Kashiwabara, Sayama City, Saitama Prefecture (72) Inventor Toshio Naito 969-1 Makinu, Misaki-ku, Kawasaki City, Kanagawa Prefecture
Claims (1)
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 transparent matrix comprising a columnar body in which a transparent material having a refractive index different from that of the matrix is uniformly dispersed, and light is incident from one end portion in the length direction thereof, and the light is emitted from the entire outer peripheral surface. In the light scatterer to be emitted, the columnar body is formed so as to gradually taper from one end in the lengthwise direction to substantially the center in the lengthwise direction to the other end in the lengthwise direction. .
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 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001272547A (en) * | 1996-11-12 | 2001-10-05 | Fiberstars Inc | Manufacturing method of flexible light pipe for side lit use |
| 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 equipped with the light source device |
| 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 |
-
1993
- 1993-12-28 JP JP35459193A patent/JPH07198950A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001272547A (en) * | 1996-11-12 | 2001-10-05 | Fiberstars Inc | Manufacturing method of flexible light pipe for side lit use |
| 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 equipped with the light source device |
| 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 |
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