JP3081186U - Light-introduced portable light - Google Patents
Light-introduced portable lightInfo
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- JP3081186U JP3081186U JP2001003340U JP2001003340U JP3081186U JP 3081186 U JP3081186 U JP 3081186U JP 2001003340 U JP2001003340 U JP 2001003340U JP 2001003340 U JP2001003340 U JP 2001003340U JP 3081186 U JP3081186 U JP 3081186U
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Abstract
(57)【要約】
【課題】 マイルドな拡散性の照明と、ビーム放射性ス
ポット照明の双方が可能であって、発光体の機構や材料
が単純で、発光効率が高く、軽く小さくできる堅牢な構
造で、発光時に熱の発生が少ない携帯ライトの提供。
【解決手段】 発光体に光導入式発光体を使用し、拡散
発光による照明の機構においては、透明合成樹脂コアの
み（コア単独）の光ファイバー方式の光導体の外周にネ
ジ状の線状微小突起群を設けて、光源からの距離にした
がって光線の進行方向の長手方向に対する角度が多様化
して行く現象を利用した伝搬光の一部を光導体外周から
透過する方式とした。また、ビーム放射性スポット照明
を得る機構においては、該光導体の先端を凸レンズ形と
することにより先端部に至った伝搬光を放射し集光する
方式とした。この両方式を一つの光導入式発光体として
一体化し、光源としてはＬＥＤを用い、この光導入式発
光体を発光部とすることで課題の携帯ライトを提供し得
た。
(57) [Summary] [PROBLEMS] A robust structure capable of both mild diffuse illumination and beam-emitting spot illumination, with a simple luminous body mechanism and material, high luminous efficiency, and light weight and small size. The provision of portable lights that generate less heat during light emission. SOLUTION: In a lighting mechanism using a light-introducing light-emitting body as a light-emitting body and using diffused light emission, a screw-shaped linear microprojection is formed on the outer periphery of an optical fiber type light guide having only a transparent synthetic resin core (core alone). A group is provided to transmit a part of the propagating light from the outer circumference of the light guide using a phenomenon in which the angle of the traveling direction of the light beam with respect to the longitudinal direction is diversified according to the distance from the light source. Further, in a mechanism for obtaining beam radiation spot illumination, a method is adopted in which the tip of the light guide is formed into a convex lens shape to radiate and condense propagation light reaching the tip. The two types were integrated as one light-introducing illuminant, an LED was used as the light source, and the light-introducing illuminant was used as the light-emitting portion, thereby providing the portable light in question.
Description
【０００１】[0001]
本考案は、懐中電灯、ミニランプなどといわれる小型で携帯可能なライトに係 わる。 The present invention relates to small and portable lights, such as flashlights and mini lamps.
【０００２】[0002]
携帯式ライトには、発光体として豆電球といわれている小型白熱電球を用いる 型と、蛍光灯などの放電灯を用いる型とがある。前者は乱反射による拡散的照明 とスポット照明と兼ねた形式が殆どであり、白熱電球の後方に乱反射型凹面鏡を 設け、その凹面鏡の焦点付近に電球を取り付けて、電球前方に広角の拡散的発光 の照明とスポット的放射発光の照明とを兼ねた如き照明形式をとるのが普通であ る。また、電球と凹面鏡の中心部との距離を変更可能にして拡散的発光とスポッ ト的放射発光との比率などを調整できるようにした構造のものもある。後者蛍光 灯などの放電灯は拡散発光による照明のみであるのが普通である。 The portable light includes a type using a small incandescent light bulb called a miniature light bulb as a light emitter, and a type using a discharge lamp such as a fluorescent light. In the former, diffuse lighting by diffuse reflection and spot lighting are used in most cases.A diffusely reflecting concave mirror is installed behind an incandescent lamp, and a light bulb is attached near the focal point of the concave mirror. It is common to adopt an illumination format that combines illumination and illumination of spot-like radiation. Further, there is also a structure in which the distance between the light bulb and the center of the concave mirror can be changed so that the ratio between diffuse light emission and spot light emission can be adjusted. In general, discharge lamps such as fluorescent lamps are only diffused light.
【０００３】 前者白熱電球型の拡散照明は、反射斑による斑のある照明となり、その発光効 率は１０ ｌｍ／Ｗ（ルーメン／ワット）以下であり、蛍光灯などの放電灯の３ ０〜７０ ｌｍ／Ｗ程度に比較して消費電力に対する発生光束が小さい。１００ Ｖなどのライン電源を用いる場合は別として、電源として一次あるいは二次電池 を用いる場合には、携帯式ゆえにコンパクトな電池を利用せざるを得なく、エネ ルギ効率が低いので、長時間の使用が不適当で、スペアの電池を必要とするなど の欠陥がある。[0003] The former incandescent lamp-type diffused illumination has uneven spots due to reflection spots, has a luminous efficiency of 10 lm / W (lumen / watt) or less, and has a light emission efficiency of 30 to 70 of a discharge lamp such as a fluorescent lamp. The generated luminous flux with respect to power consumption is smaller than about lm / W. Aside from using a line power source such as 100 V, when using a primary or secondary battery as a power source, a compact battery must be used because it is portable, and the energy efficiency is low. There are defects, such as improper use and the need for spare batteries.
【０００４】 また、前者白熱電球型は発光に当たってかなり熱の発生を伴う。携帯ライトは 形態をできるだけ小さくする必要がある。従って点灯に伴う発生熱の放熱を十分 に行う機構を組み込み難いという問題がある。さらに、白熱電球は薄いガラス製 であるので、屋内や屋外の固定照明の場合とは異なり、使用中に物体へぶつける 、落下するなどの衝撃を受ける機会が多く破損しやすいので、保護カバーなどが 必要で構造が複雑になる。Further, the former incandescent lamp type involves considerable heat generation when emitting light. Portable lights need to be as small as possible. Therefore, there is a problem that it is difficult to incorporate a mechanism for sufficiently dissipating heat generated by lighting. Furthermore, since incandescent light bulbs are made of thin glass, unlike in the case of fixed lighting indoors and outdoors, there are many chances of being hit by an object during use, such as falling, etc. Necessary and complicated structure.
【０００５】 後者蛍光灯どの放電灯を用いる型は、インバータなどの発達やその小型化によ って近年普及しつつあり、面状や線状発光であるので拡散性のマイルドな照明で あることがその特徴である。後者放電灯型は携帯ライトの一方の必要機能である ところの小さな部分だけを大きな光度で照明するビーム放射性スポット照明がで きない欠点がある。拡散発光ゆえ曇天のときの太陽光が凸レンズで集光できない のと同様である。発光効率についても白熱電灯よりは高いが十分とはいえない。[0005] The latter type, which uses a discharge lamp such as a fluorescent lamp, has recently become widespread due to the development of inverters and the miniaturization thereof. Is the feature. The latter discharge lamp type has a drawback that it cannot perform beam radiation spot illumination, which illuminates only a small part, which is one of the necessary functions of a portable light, with a large luminous intensity. This is similar to the fact that sunlight in cloudy weather cannot be collected by a convex lens due to diffused light emission. The luminous efficiency is higher than that of incandescent lamps, but is not sufficient.
【０００６】 また後者放電灯の発光に当たっては白熱電球ほどではなくても、かなり熱の発 生を伴う。携帯ライトはその形態をできるだけ小さくする必要があるゆえ、白熱 電灯型と同様に発生熱の放熱の問題が生じる。また、放電灯を用いる型は光源が ガラス製であるので、白熱電灯型同様に使用中に破損の懸念という問題がある。[0006] In addition, the light emission of the latter discharge lamp is accompanied by considerable heat generation, although not as much as incandescent lamps. Since the form of the portable light needs to be as small as possible, there is a problem of heat dissipation as in the case of the incandescent lamp type. In addition, since the light source of the type using a discharge lamp is made of glass, there is a problem that it may be damaged during use as in the case of the incandescent lamp type.
【０００７】[0007]
このように、従来の携帯ライトについては多くの問題点が内在していて、改良 すべき課題が多々あるといわねばならない。すなわち、 （１）拡散照明においてはマイルドな拡散性発光による照明、およびビーム放射 性のスポット照明も可能とする両機能を備えていること。 （２）発光体を堅牢なものとし、保護カバーなどの複雑な構造を必要としないこ と。 （３）発光効率を高いものとすること。 （４）熱の発生が少ない発光方式とすること。 As described above, there are many problems inherent in the conventional portable light, and it must be said that there are many problems to be improved. In other words, (1) Diffusing illumination must have both functions to enable mild diffused light emission and beam-emitting spot illumination. (2) The luminous body is made robust and does not require a complicated structure such as a protective cover. (3) High luminous efficiency. (4) A light emitting method that generates less heat is used.
【０００８】 すなわち、マイルドな拡散性の照明と、ビーム放射性のスポット照明の双方が 可能であって、発光体の材料や構造が堅牢であって、発光効率がよく、発光時に 熱の発生が少ない携帯ライトの提供が望まれているところである。[0008] That is, both mild diffuse illumination and beam-emission spot illumination are possible, the material and structure of the luminous body are robust, the luminous efficiency is good, and the generation of heat during luminescence is small. There is a need for portable lights.
【０００９】[0009]
【課題を解決するための手段】 考案者は鋭意検討の結果次の如き考案に至った。すなわち、拡散性照明とビー ム放射性のスポット照明の双方が可能な携帯ライトであって、その光導入発光体 が拡散性の照明においては（１）であり、ビーム性スポット照明においては（２ ）であることを兼ね備えていることを特徴とする光導入式携帯ライトの考案であ る。 しかして（１）は光導部として透明合成樹脂のコアのみから成り、鞘の役割を 周囲空気層とする断面が円形の線状、柱状もしくは中空状の光導体に、該光導体 の長手方向の任意位置について、長手方向と実質的に直角方向に外周に沿って外 周全部あるいは外周の一部に線状微小突起群を有する部分を設けることにより、 該光導体端部に光線を導入したときに該突起群を有する恰もネジ状の外周部全体 、あるいは恰もラック状の外周の一部が漏光部を形成して拡散性発光する構造で 、（２）は光導部として透明合成樹脂のコアのみから成り、鞘の役割を周囲空気 層とする断面が円形の線状、柱状もしくは中空状の光導体の端部に光線を導入し たときに、対向する反対側の端部が凸レンズ形になっていて、該光導体中の伝搬 光が外に向かってビーム放射性のスポット発光する構造。[Means for Solving the Problems] As a result of intensive studies, the inventor has come up with the following invention. That is, it is a portable light capable of performing both diffuse lighting and beam-emitting spot lighting, and its light-introducing illuminant is (1) in diffuse lighting and (2) in beam spot lighting. It is a device of a light introduction type portable light characterized by having both of the following. In (1), the light guide portion is formed of only a transparent synthetic resin core, and the sheath functions as a linear, columnar or hollow light guide having a circular cross section with the surrounding air layer. When a light beam is introduced into the end of the light guide by providing a portion having a linear microprojection group on the entire outer circumference or a part of the outer circumference along the outer circumference substantially perpendicular to the longitudinal direction at an arbitrary position. The entire screw-shaped outer peripheral portion having the protrusion group or a part of the rack-shaped outer periphery forms a light leakage portion and emits diffused light. (2) The light guide portion includes only a transparent synthetic resin core. When a light beam is introduced into the end of a circular linear, columnar, or hollow light guide whose cross-section has the role of the surrounding air layer as the sheath, the opposite end on the opposite side becomes a convex lens shape. And the light propagating in the light guide is directed outward. Radiation-emitting spot light emitting structures.
【００１０】 さらに、拡散性の照明のみを用いるときは、光導入発光体の端部凸レンズ形に 嵌合する如き鏡面凹部を形成した蓋で、該凸レンズ形を覆うことが可能なること を特徴とする光導入式携帯ライトである。[0010] Furthermore, when only diffused illumination is used, the convex lens shape can be covered with a lid having a mirror concave portion that fits into the convex lens shape at the end of the light-introducing luminous body. It is a light introduction type portable light.
【００１１】 加えて、光導入発光体の光導入端部の光源体が発光ダイオードであることを特 徴とする光導入式携帯ライトである。In addition, the present invention is a light-introducing portable light, characterized in that the light source at the light-introducing end of the light-introducing luminous body is a light-emitting diode.
【００１２】[0012]
図１は本考案の光導入式携帯ライトの一例を示す斜視略図である。この例の場 合の寸法イメージは、縦方向が大凡１０〜２０ｃｍ程度である。４は携帯ライト 全体を示し、５は携帯ライトのケーシング部で電池や制御部が入る。７は携帯ラ イトにセットされている透明な合成樹脂製の光導入発光体、３４はスイッチをお のおの示す。 FIG. 1 is a schematic perspective view showing an example of the light-introducing portable light of the present invention. The dimension image in this example is about 10 to 20 cm in the vertical direction. Reference numeral 4 denotes the entire portable light, and reference numeral 5 denotes a casing of the portable light, in which a battery and a control unit are inserted. Reference numeral 7 denotes a transparent synthetic resin light-introducing illuminator set on the portable light, and reference numeral 34 denotes a switch.
【００１３】 本考案の光導入発光体は、光ファイバーなどといわれている光導体の一種であ る。一般的に光導体は透明なコア部（芯ともいう）と、これより屈折率の小なる 透明な鞘部（クラッドまたはシースともいう）とからなり、直線状でなくてもそ の境界面の全反射作用で光線を伝搬し、光源から離れた端面に光線が至るものを いう。The light-introducing luminous body of the present invention is a kind of light guide called an optical fiber. In general, a light guide consists of a transparent core (also called a core) and a transparent sheath (also called a clad or sheath) having a lower refractive index. Light propagates by reflection and reaches the end face far from the light source.
【００１４】 本考案の光導入発光体７は、鞘部の役割を周囲空気層とする透明な合成樹脂の コア部のみからなる光導体である。つまり、光導部として透明合成樹脂のコアの みから成り、鞘の役割を周囲空気層とする断面が円形の線状、柱状もしくは中空 状の光導体を基本とし、端部から導入した光線が反対側の先端の凸レンズ形に至 ると共に、外周が拡散発光するようにした光導入発光体を用いる。なお、外周が 拡散発光する光導入発光体については、実願２０００−９５１５号に開示されて いる。The light-introducing luminous body 7 of the present invention is a light guide composed of only a transparent synthetic resin core part having a sheath functioning as an ambient air layer. In other words, the light guide section is composed of only a transparent synthetic resin core, and the sheath is basically a linear, columnar, or hollow light guide with a circular cross section with the surrounding air layer. A light-introducing luminous body is used, which has a convex lens shape at the end on the side and diffuses and emits light on the outer periphery. A light-introducing luminous body whose outer periphery diffusely emits light is disclosed in Japanese Utility Model Application No. 2000-9515.
【００１５】 図２は、図１に示す本考案の光導入式携帯ライトの光導入発光体７、その周辺 の部分断面部を斜線で示す側面略図である。図１における上側が図２においては 右側になるように描いている。なお、寸法や寸法比は説明を明確にするため主要 部を誇張して描いているので実物とは大きく異なる。図１においてはケーシング ５に隠れているが、発光体７の上部は、図２において右側に断面として描いてい るように、先端部が図２の８に示す如き凸レンズ形となっている。FIG. 2 is a schematic side view of the light-introducing light source 7 of the light-introducing portable light of the present invention shown in FIG. The upper side in FIG. 1 is drawn on the right side in FIG. Dimensions and dimensional ratios are greatly exaggerated for clarity of explanation, so they are significantly different from the actual products. In FIG. 1, it is hidden by the casing 5, but the top of the luminous body 7 has a convex lens shape as shown at 8 in FIG.
【００１６】 図２において、携帯ライトの右側にはカバー２５が装着されていて、光導入発 光体７の先端部の凸レンズ形には、図２のカバー２５の位置の如く該凸レンズ形 ８を覆う「閉」状態の位置と、蝶番部２６を支点として、図１の鎖線矢印２７に 示すような回転によって、カバー２５が凸レンズ形８を露出する「開」状態の位 置の何れもとれるようになっている。図１に示す如きカバー２５の「開」状態で は、携帯ライト４の上部において、発光体７の先端の凸レンズ形８から放射する ビーム放射性光線によるスポット照明が可能になる。In FIG. 2, a cover 25 is mounted on the right side of the portable light, and the convex lens shape at the tip of the light-introducing / emitting body 7 is the same as the position of the cover 25 in FIG. By rotating the cover 25 in the “closed” state and the hinge 26 as a fulcrum as shown by the dashed arrow 27 in FIG. 1, the cover 25 can take any position in the “open” state exposing the convex lens shape 8. It has become. When the cover 25 is in the “open” state as shown in FIG. 1, spot illumination with a beam emitting light beam emitted from the convex lens shape 8 at the tip of the illuminant 7 becomes possible above the portable light 4.
【００１７】 図１、図２に示すように、カバー２５の蓋部２８の内側には凹状窪み部２９が あり、この凹状窪み部は図２に示すようにカバー２５の「閉」状態では、発光体 ７の先端凸レンズ形８と蓋部２８の内側の凹状窪み部２９とが、互いの凸凹が沿 うように嵌合する構造になっている。また、凹状窪み部２９は鏡面研磨アルミ表 面を例とするような鏡面反射材となっている。As shown in FIG. 1 and FIG. 2, there is a concave recess 29 inside the cover 28 of the cover 25, and the concave recess is in the “closed” state of the cover 25 as shown in FIG. The convex convex lens shape 8 of the light-emitting body 7 and the concave concave portion 29 inside the lid portion 28 are structured so as to fit each other so that the convex and concave portions are aligned. The concave depression 29 is a mirror-reflective material such as a mirror-polished aluminum surface.
【００１８】 図２の左側は光導入発光体７への光線導入部を示す。図２の光導入発光体７の 左端には窪み３０が設けられていて、これに近接してＬＥＤ（Ｌｉｇｈｔ Ｅｍ ｉｔｔｉｎｇ Ｄｉｏｄｅ；発光ダイオード）３１が備えられている。この点灯 、消灯はスイッチ３４で行う。 ＬＥＤ３１が点灯すると、ＬＥＤからの光線が発光体７に導入され、伝搬光の 一部を利用する本考案の側面発光の原理に従って発光体７の外周が拡散発光する と共に、光ファイバーの原理で発光体７中を光線が伝搬し先端の凸レンズ形８に 至る。The left side of FIG. 2 shows a part for introducing light into the light-introducing luminous body 7. 2 is provided with a depression 30 at the left end thereof, and an LED (Light Emitting Diode; light emitting diode) 31 is provided in the vicinity of the depression 30. The turning on and off is performed by the switch 34. When the LED 31 is turned on, a light beam from the LED is introduced into the luminous body 7, and the outer periphery of the luminous body 7 diffuses and emits according to the side emission principle of the present invention that uses a part of the propagating light. The light propagates through 7 and reaches a convex lens shape 8 at the tip.
【００１９】 図２の右側の如くカバー２５が「閉」状態の場合には、蓋部２８の内側窪み部 ２９が鏡面であるので、発光体の先端凸レンズ形８から漏光した光線が鏡面によ り反射し再び発光体７中に戻り、発光体６の外周の拡散発光の輝度が向上する。When the cover 25 is in the “closed” state as shown on the right side of FIG. 2, since the inner concave portion 29 of the lid 28 is a mirror surface, the light leaking from the convex lens shape 8 at the tip of the luminous body is reflected by the mirror surface. The light is then reflected back into the luminous body 7 and the luminance of the diffused luminescence on the outer periphery of the luminous body 6 is improved.
【００２０】 次に本考案に用いる光導入発光体の外周の拡散発光と、ビーム性放射スポット 発光の両者について説明する。先ず、発光体の外周の拡散発光について説明する 。 コアのみからなる光導体中の光線伝搬の原理は、コア／鞘型の光ファイバー類 の場合と同じで、鞘の役割をコアの周囲空気が担っているだけの違いである。或 る屈折率のコア中の光線が、それより屈折率の小なる周囲空気との境界面に入射 するとき、入射角が法線に対するある一定の角度より大きいと全反射する。その 境界面は光導体の軸線（長手方向中心線）に対し略平行ではあるが、微細には平 行とは限らないので反射点の法線角度も微細には一定でない。よって光線の導入 直後からの進行距離にしたがって光線の軸線に対する角度は、鞘内面で全反射し ない部分も含めて多様化して行く現象がある。Next, both diffused light emission around the outer periphery of the light-introducing luminous body used in the present invention and beam-like radiation spot light emission will be described. First, diffusion light emission on the outer periphery of the light emitting body will be described. The principle of light propagation in an optical waveguide consisting of a core is the same as that of core / sheath type optical fibers, except that the sheath plays the role of the air surrounding the core. When a light ray in a core having a certain refractive index is incident on an interface with surrounding air having a smaller refractive index, the light is totally reflected if the angle of incidence is larger than a certain angle with respect to a normal. Although the boundary surface is substantially parallel to the axis (center line in the longitudinal direction) of the light guide, the normal angle of the reflection point is not minutely constant because the angle is not always parallel. Therefore, there is a phenomenon that the angle of the light ray with respect to the axis line becomes diversified according to the traveling distance immediately after the introduction of the light ray, including the part that is not totally reflected on the inner surface of the sheath.
【００２１】 この現象を利用してコアのみから成る光導体の長手方向の外周に突起群を設け ることのみで、軸線に対する角度が多様化して伝搬して行く光線の一部を捉えて 、光導体側面を透過させ、あるいは光錯乱させて外周が光る構造としたものであ る。By utilizing this phenomenon and providing only a group of projections on the outer circumference in the longitudinal direction of the light guide consisting of only the core, a part of the light beam propagating at various angles with respect to the axis is captured. It has a structure in which the outer periphery shines by transmitting the light through the conductor side surface or disturbing the light.
【００２２】 本考案に用いる光導入発光体の外周の拡散発光としては透明合成樹脂のコアの みから成り、鞘の役割を周囲空気層とする断面が円形の線状、柱状もしくは中空 状の光導体に、該光導体の長手方向について、長手方向と実質的に直角方向に外 周に沿って外周全部、あるいは外周の一部に線状微小突起群を有する部分を設け ることにより、該光導体に光線を導入したときに該突起群を有する恰もネジ状の 外周部全体、あるいは恰もラック状の外周の一部が漏光部を形成して発光させ外 周の拡散発光を得る。The diffused light emitted from the outer periphery of the light-introducing luminous body used in the present invention consists only of a core of a transparent synthetic resin, and has a role of a sheath as a surrounding air layer. By providing the conductor with a portion having a group of linear microprojections on the entire outer circumference or a part of the outer circumference in a direction substantially perpendicular to the longitudinal direction with respect to the longitudinal direction of the light guide, When a light beam is introduced into the conductor, the entire screw-shaped outer peripheral portion having the projection group or a part of the rack-shaped outer periphery forms a light leakage portion to emit light, thereby obtaining diffused light emission at the outer periphery.
【００２３】 本考案に用いる光導入発光体７の外径は大凡２〜２５ｍｍ程度で、任意外周の 線状微小突起群の線状突起部断面が実質的に三角形、鋸歯形あるいは正弦波形で あって、突起間相互のピッチが大凡０．８〜１．０ｍｍ、突起の高さが大凡０． ３〜０．５ｍｍである。The outer diameter of the light-introducing luminous body 7 used in the present invention is approximately 2 to 25 mm, and the cross section of the linear projections of an arbitrary group of linear projections has a substantially triangular, sawtooth or sinusoidal waveform. The pitch between the projections is about 0.8 to 1.0 mm, and the height of the projections is about 0. 3 to 0.5 mm.
【００２４】 また、発光体７の外径が大凡２〜２５ｍｍ程度で、任意外周の線状微小突起群 の線状突起部断面が実質的に矩形であって、突起間相互の間で形成された溝の溝 幅が大凡 ０．１ｍｍ（１００μｍ）以下で、突起の高さが大凡０．３〜０．５ ｍｍであることを特徴とする光導入発光体である。Further, the outer diameter of the luminous body 7 is about 2 to 25 mm, and the linear projection section of the linear microprojection group at an arbitrary outer periphery is substantially rectangular, and is formed between the projections. The light introducing luminous body is characterized in that the groove width of the groove is approximately 0.1 mm (100 μm) or less and the height of the projection is approximately 0.3 to 0.5 mm.
【００２５】 図３は、光導体外周の線状微小突起群の線状突起部断面が実質的に三角形の場 合の一例の部分断面拡大略図で、図２における発光体７の光源ＬＥＤ部３１の光 線導入部３０の反対側、つまり図２右側の端部近傍を直径方向で切った場合の側 面断面拡大略図で、発光体７の先端部８は凸レンズ形となっている。なお、寸法 や各部の寸法や寸法比は説明を明確にするため主要部を誇張して描いているので 実物の場合とは大きく異なる。FIG. 3 is an enlarged schematic partial cross-sectional view showing an example of a case where a linear projection section of the linear micro projection group on the outer periphery of the light guide is substantially triangular. 2 is an enlarged schematic side cross-sectional view when the opposite side of the light beam introducing unit 30, that is, the vicinity of the end on the right side in FIG. 2 is cut in a diametrical direction. In addition, dimensions and dimensional ratios of each part are greatly exaggerated for the sake of clarity of explanation, so they are significantly different from those of the actual product.
【００２６】 長手方向の範囲６は外周の線状微小突起群の突起断面３が三角形の場合を示し 、範囲６の円柱外周が拡散発光部である。なお、微小三角形間の谷部には軸線に 平行な面が存在している。図３の７は光導入発光体でコア単独の透明な合成樹脂 からなる。９はコアと周囲空気部とのコア側からの境界面を示す。１０は線状突 起群の突起の外周の斜面辺を示す。A range 6 in the longitudinal direction shows a case where the projection cross section 3 of the group of linear microprojections on the outer periphery is triangular. In addition, there is a plane parallel to the axis in the valley between the small triangles. Numeral 7 in FIG. 3 denotes a light-introducing luminous body made of a transparent synthetic resin having a core alone. Reference numeral 9 denotes a boundary surface between the core and the surrounding air from the core side. Reference numeral 10 denotes a slope side on the outer periphery of the protrusion of the linear protrusion group.
【００２７】 本考案の光導入発光体はコアのみからなる繊維状、テグス状あるいは柱状の光 導体に、精密転造法（ｒｏｌｌｉｎｇ）や切削法（ｃｕｔｔｉｎｇ）などによっ て、図３の３に示すような外周の線状微小突起群を形成し外周拡散発光体７とし たものである。前者による線状微小突起群の外面は滑らかな突起面となるので主 として透過による外周部発光で、後者による線状微小突起群の外面は比較的粗な 突起面なとなるので主として光錯乱による外周部発光となる。The light-introducing luminous body of the present invention is formed into a fibrous, tex-like or column-like light guide consisting of only a core by precision rolling (rolling) or cutting (cutting) as shown in FIG. An outer peripheral diffused luminous body 7 is formed by forming a group of linear fine protrusions on the outer periphery as shown in FIG. The outer surface of the linear microprojection group formed by the former is a smooth projection surface, so that light is emitted mainly from the outer periphery due to transmission.The outer surface of the linear microprojection group formed by the latter is a relatively rough protrusion surface, and is mainly caused by light scattering. The outer peripheral portion emits light.
【００２８】 次にビーム放射性スポット発光について説明する。図３に示すように、本考案 の光導入発光体７の開放先端部８は凸レンズ形になっている。軸線に対する角度 が多様化して伝搬して行く光線の一部を捉えて、光導体側面を透過させ、あるい は光錯乱させて外周が拡散発光するが、かなりの光線は発光体内部を伝搬し、発 光体７の凸レンズ形８部に至る。開放先端部に至る伝搬光線は図３の３５に示す ように発光体の軸線にほぼ平行である。この伝搬光線が図３の右端凸レンズ形８ から３６方向に放射し、凸レンズ形の作用によってその焦点３７の近傍に放射光 が集中する。しかして、ビーム放射性スポット照明が得られる。Next, beam radiation spot emission will be described. As shown in FIG. 3, the open distal end 8 of the light-introducing luminous body 7 of the present invention has a convex lens shape. Angles with respect to the axis are diversified, and a part of the light beam that propagates is captured and transmitted through the side of the light guide or disturbed by light, and the outer periphery emits diffused light, but considerable light propagates inside the light emitter. To the convex lens-shaped portion 8 of the light emitter 7. The propagating light beam reaching the open tip is substantially parallel to the axis of the illuminant, as shown at 35 in FIG. The propagating light beam radiates from the rightmost convex lens shape 8 in FIG. 3 in 36 directions, and the radiated light is concentrated near the focal point 37 by the action of the convex lens shape. Thus, beam-emitting spot illumination is obtained.
【００２９】 本考案は、かように光導入発光体の外周の発光による拡散発光と、先端の凸レ ンズ形からのビーム放射性光線によるスポット照明の何れもが一体化しているこ とがその特徴である。The present invention is characterized in that both the diffused light emission by the light emission on the outer periphery of the light-introducing luminous body and the spot illumination by the beam emitting beam from the convex lens at the tip are integrated. It is.
【００３０】 図４は、図３における如き外周の線状微小突起群の断面が三角形の場合の突起 群３の拡大部分断面略図で、三角形３−１と３−２の２個分を示す。図面におい て下部の１は、光導入発光体のコア透明合成樹脂部、上部の２は鞘部媒体である ところの周囲空気部を示す。９−１〜９−７は透明なコア合成樹脂部１のコア側 から見たコア／周囲空気の境界面を示し、１０−１〜１０−７は周囲外面を示す 。FIG. 4 is an enlarged partial cross-sectional schematic view of the projection group 3 when the cross section of the linear linear projection group on the outer periphery as shown in FIG. 3 is a triangle, and shows two triangles 3-1 and 3-2. In the drawing, the lower part 1 shows the core transparent synthetic resin part of the light-introducing luminous body, and the upper part 2 shows the surrounding air part which is the sheath medium. Reference numerals 9-1 to 9-7 denote a boundary surface of the core / ambient air as viewed from the core side of the transparent core synthetic resin portion 1, and reference numerals 10-1 to 10-7 denote peripheral outer surfaces.
【００３１】 図４において右側の長手方向の軸線に対し所定角度で伝搬する光線１１がコア 層と鞘層の境界の法線１１１−１１２に対して全反射しない角度で透過した場合 、外層１０−５に至って法線１１３−１１４に対称に全反射し、１１’方向つま り外周から漏光する。所定角度で伝搬する光線１２についても同様に法線１２１ −１２２に対して全反射しない角度で透過した場合、外面１０−５で法線１２３ −１２４に対称に全反射し１２’方向に漏光する。所定角度で伝搬する光線１３ については、法線１３１−１３２に対し全反射しない角度で透過した場合に１３ ’方向に漏光する。[0031] When having passed through at an angle beam 11 propagating at a predetermined angle to the right of the longitudinal axis is not totally reflected with respect to the normal 11 1 -11 2 boundary of the core layer and the sheath layer in FIG. 4, the outer layer totally reflected symmetrically to the normal 11 3 -11 4 led to 10-5, to light leaking from the outer peripheral Ri 11 'direction knob. If it transmitted at an angle which is not totally reflected similarly with respect to the normal line 12 1 -12 2 for beam 12 propagating at a predetermined angle, is totally reflected symmetrically to the normal 12 3 -12 4 at the outer surface 10-5 12 ' Light leaks in the direction. The light rays 13 propagating at a predetermined angle to the light leakage in the 13 'direction when passing through an angle which is not totally reflected with respect to the normal 13 1 -13 2.
【００３２】 所定角度で伝搬する光線１４は三角形の谷部である光導体軸線平行のコア側か ら見たコア層と周囲空気層との境界面で法線１４１−１４２に対して全反射する 角度で入射し、９−４面で全反射し、外周部から漏光せずに光導体中を１４’方 向に伝搬する。以下同様に光導体軸線に対し多様化した多様化した光導体中を伝 搬する光線の一部が同様に線状突起体３−１、３−２を含め全線状微小突起群が 光り、光導体の長手方向において線状突起群を有する部分の外周が総体的に光る 。この例に示すような作用で外周が光るので、線状微小突起群の突起断面は三角 形でなくてもよく、鋸歯波形、正弦波形などでもよい。The light rays 14 propagating at a predetermined angle with respect to the normal 14 1 -14 2 at the boundary surface between the core layer and the surrounding air layer viewed core side or al parallel optical conductor axis is valleys triangular total The light enters at an angle to be reflected, is totally reflected on the 9-4 surface, and propagates in the light guide in the 14 'direction without leaking light from the outer peripheral portion. In the same manner, a part of the light beam propagating in the diversified light guide, which is also diversified with respect to the light guide axis, similarly illuminates the entire linear minute protrusion group including the linear protrusions 3-1 and 3-2. The outer periphery of the portion having the linear projection group in the longitudinal direction of the conductor shines as a whole. Since the outer periphery is illuminated by the action shown in this example, the projection cross section of the linear minute projection group need not be triangular, but may have a sawtooth waveform, a sine waveform, or the like.
【００３３】 図５は、図３、図４における三角形突起３の部分の断面形状が、矩形の場合の 拡大部分断面略図である。図面において下部の１は光導入発光体のコア透明合成 樹脂部、上部の２は周囲媒体である周囲空気部を示す。１６−１〜１６−３は外 周の線状微細矩形突起群の断面の一部を示し、１７−１〜１７−３は該突起群に 囲まれて形作られた溝部を示す。この溝部は切削法によって加工された溝で、従 って壁面２０−１〜２０−５はサンドブラスト傷付けの如く故意に粗面形にし、 その面で光錯乱を起こさせるようにしている。１８−１〜１８−５は透明なコア 合成樹脂の外周面を示し、１９−１〜１９−５はコア側からのコア／外周空気の 境界面を示す。FIG. 5 is an enlarged partial cross-sectional schematic view when the cross-sectional shape of the triangular protrusion 3 in FIGS. 3 and 4 is rectangular. In the drawing, the lower part 1 shows a core transparent synthetic resin part of the light-introducing luminous body, and the upper part 2 shows an ambient air part which is a surrounding medium. Reference numerals 16-1 to 16-3 denote a part of the cross section of the group of linear fine rectangular projections on the outer periphery, and reference numerals 17-1 to 17-3 denote grooves formed by being surrounded by the projection groups. This groove is a groove processed by a cutting method. Therefore, the wall surfaces 20-1 to 20-5 are intentionally roughened such as by sandblasting to cause light scattering on the surface. 18-1 to 18-5 show the outer peripheral surface of the transparent core synthetic resin, and 19-1 to 19-5 show the boundary surface of the core / outer peripheral air from the core side.
【００３４】 入射した光線２１、２２、２３は粗面２０−４、２０−５に至り、その面で光 錯乱を起し粗面２０−４、２０−５が光ると共に、ほぼ２１’、２２’、２３’ 方向に光が放射するので溝１７−３が光るように見える。以下同様に光導体中を 伝搬する光線の一部が粗面２０−１〜２０−５、また１７−１〜１７−３を含め て、突起と突起の間に作られた全ての溝群が光り、光導体の長手方向において線 状突起群を有する部分の外周全体が光る。外周の線状微細矩形突起群の線状突起 断面形状は厳密には矩形でなくてもよく、台形などの実質的に矩形の範疇の形状 も含まれる。The incident light beams 21, 22, and 23 reach the rough surfaces 20-4 and 20-5, where light scattering is caused on the surfaces, and the rough surfaces 20-4 and 20-5 shine, and almost 21 ′ and 22 ′. Since light is emitted in the ', 23' direction, the groove 17-3 appears to glow. Similarly, all the grooves formed between the projections, including the roughened surfaces 20-1 to 20-5, and 17-1 to 17-3, are part of the light beam propagating in the light guide. The entire outer periphery of the portion having the linear projection group in the longitudinal direction of the light guide shines. The cross-sectional shape of the linear micro-rectangular protrusion group on the outer periphery does not have to be strictly rectangular, and includes a substantially rectangular category such as a trapezoid.
【００３５】 本考案の光導入発光体は透明性の高い樹脂を用い、その透明性は高ければ高い 程よいが、かかる意味で当該分野で公知の樹脂の何れであってもよい。コア部の 樹脂は一般に屈折率１．４〜２．０の範囲が好適であるが、周囲空気より屈折率 が低い合成樹脂はないので、当該分野で公知の樹脂であれば何れでもよい。具体 的例としては屈折率の高いポリスチレン、ポリスチレン共重合体、ＰＭＭＡ（ポ リメチルメタクリレート）、ポリカーボネートなどがあげられる。The light-introducing luminous body of the present invention uses a highly transparent resin, and the higher the transparency, the better. However, in this sense, any resin known in the art may be used. In general, the resin of the core portion preferably has a refractive index in the range of 1.4 to 2.0, but since there is no synthetic resin having a refractive index lower than that of ambient air, any resin known in the art may be used. Specific examples include polystyrene having a high refractive index, polystyrene copolymer, PMMA (polymethyl methacrylate), and polycarbonate.
【００３６】 線状微小突起群は光導体外周に沿って円周に亘っていなくてもよく、棒の外周 の一部側面に歯を切ったようなラック（ｒａｃｋ）の如き形状でもよい。本考案 の光導入発光体の断面形状は円形、楕円形、半円形、そしておのおの中空形でも よい。 外周に線状微細突起群を有する長手方向の長さは、大凡２００ｍｍ程度までで ある。 本発明の光導入発光体の外周の直径は大凡２〜２５ｍｍ程度が望ましい。The linear microprojections need not extend along the circumference of the light guide, and may have a shape like a rack in which teeth are cut on a part of the outer circumference of the rod. The cross-sectional shape of the light-introducing luminous body of the present invention may be circular, elliptical, semicircular, or hollow. The length in the longitudinal direction having a group of linear fine protrusions on the outer circumference is up to about 200 mm. The outer diameter of the light-introducing luminous body of the present invention is desirably about 2 to 25 mm.
【００３７】 三角形の場合の頂角はその境界は定かでないが大凡９０°以下がよく、望まし くは３０°までの範囲が適合する。本考案の光導入発光体の外周の線状微細突起 群の突起間のピッチ、つまり雄ネジ状のピッチは、大凡０．８〜１．０ｍｍ程度 が望ましい。 突起の高さは大凡０．３〜０．５ｍｍ程度が望ましい。矩形断面の場合には、 矩形突起間で形作られる溝、図５でいえば１７−１〜１７−３に図示されるよう な光導体長手方向の溝幅は大凡０．１ｍｍ（１００μｍ）以内とする必要がある 。線状微小突起群の断面が矩形の場合の外周発光の機構は主として溝の壁面の光 錯乱現象の利用であり、溝幅が狭いと一つの溝当たりでは溝の両壁面の光錯乱現 象を加算した効果となるから狭い方がよいのである。In the case of a triangle, the apex angle is not clear at its boundary, but is preferably about 90 ° or less, and preferably a range up to 30 ° is suitable. The pitch between the projections of the group of linear fine projections on the outer periphery of the light-introducing luminous body of the present invention, that is, the pitch of the male screw is preferably about 0.8 to 1.0 mm. The height of the projection is preferably about 0.3 to 0.5 mm. In the case of a rectangular cross section, the groove formed between the rectangular projections, the groove width in the longitudinal direction of the light guide as shown in 17-1 to 17-3 in FIG. 5 is approximately within 0.1 mm (100 μm). There is a need to . When the cross section of the linear microprojections is rectangular, the mechanism of light emission from the outer periphery is mainly based on the light scattering phenomenon on the wall surface of the groove.If the groove width is narrow, the light scattering phenomenon on both wall surfaces of the groove will occur if one groove is narrow. The narrower the better, because of the added effect.
【００３８】 本考案に使用するＬＥＤは、図２の３１に例示している如く一つの光導入発光 体に１個のＬＥＤの使用でなく、一つの光導入発光体に２個以上複数のＬＥＤを 使用してもよい。また、本考案の光導入式携帯ライトはかような光導入発光体が 複数装備されていてもよい。本考案は目的が携帯照明器具ゆえ使用ＬＥＤの光度 は高いほどよい。The LED used in the present invention does not use one LED for one light-introducing luminous body as illustrated in 31 of FIG. 2, but uses two or more LEDs for one light-introducing luminous body. May be used. Further, the light-introducing portable light of the present invention may be provided with a plurality of such light-introducing illuminants. Since the purpose of the present invention is a portable lighting fixture, the higher the luminosity of the LED used, the better.
【００３９】 一般に高光度型といわれている最近のＬＥＤの放射光度の向上は顕著であり、 １０ｃｄ（カンデラ）程度以上のものまであるが、本考案に使用するＬＥＤの放 射光度は１ｃｄ（１０００ ｍｃｄ）以上が望ましい。しかしながら、同じ放射 光度のＬＥＤでも、光導入発光体が小さくその透明性が高ければ、輝度（ｃｄ／ ｍ２）は大きくなるのでＬＥＤ光度の下限については定め難く、ＬＥＤ光源の必 要光度は本考案の光導入式携帯ライトの大きさや形状による。ＬＥＤの発光色は 照明用ゆえ一般的には白色系であるが、信号や標識などに用いる目的にあっては 赤や黄色のような他の色でもよく、色相はＬＥＤ自体の発光色によっても、着色 フィルターによってもよい。The recent improvement in the radiance of the LED, which is generally referred to as a high-luminance type LED, is remarkable, and is about 10 cd (candela) or more. However, the radiance of the LED used in the present invention is 1 cd (1000 mcd) or more is desirable. However, even with LEDs having the same radiance, if the light-introducing luminous body is small and its transparency is high, the luminance (cd / m 2 ) increases, so it is difficult to determine the lower limit of the LED luminous intensity. It depends on the size and shape of the light-introducing portable light. The light emission color of the LED is generally white because it is used for lighting, but other colors such as red and yellow may be used for signals and signs, and the hue may be determined by the light emission color of the LED itself. Alternatively, a coloring filter may be used.
【００４０】 電源は電池使用でも、１００Ｖなどのライン電源使用のどちらでもよい。前者 の場合は一次電池、二次電池どちらでもよく、二次電池の場合に充電器と組み合 わせて、あたかも携帯電話の如くライン電源から充電できるようにしてもよい。The power source may be either battery power or a line power source such as 100V. In the former case, either a primary battery or a secondary battery may be used. In the case of a secondary battery, the battery may be combined with a charger so that the battery can be charged from a line power supply like a mobile phone.
【００４１】 次に実施例を示す。図１に示す形状の光導入式携帯ライトを試作した。光導入 発光体としては、屈折率が１．４９のＰＭＭＡ樹脂を用いて、コアのみの直径８ ｍｍ、長さ１００ｍｍの円柱光導体を押出成形法で作った。両端各１０ｍｍだけ そのまま残し、８０ｍｍの部分に転造雌型による精密転造法によって、その外周 に図４の如き断面が三角形の線状微小突起群によるネジを設けた。突起の頂角は ６０°とし、突起群のピッチは０．８ｍｍ、突起の高さは０．４ｍｍとして柱状 の光導入発光体とし、一方の端に図２の３０に示す如き窪みを設け、反対側の端 部は研磨によって図３の８の如き焦点距離５０ｍｍの凸レンズ形とした。Next, examples will be described. A prototype light-introducing portable light having the shape shown in FIG. 1 was produced. Light Introduction As the luminous body, a cylindrical light guide having a diameter of 8 mm and a length of 100 mm consisting of only a core was formed by extrusion using a PMMA resin having a refractive index of 1.49. A screw formed by a group of fine linear projections having a triangular cross section as shown in FIG. 4 was provided on the outer periphery of the 80 mm portion by a precision rolling method using a rolling female die, leaving only 10 mm at each end. The projection has a vertical angle of 60 °, the pitch of the projections is 0.8 mm, and the height of the projections is 0.4 mm to form a columnar light-introducing luminous body, and one end is provided with a depression as shown in FIG. The opposite end was formed into a convex lens shape having a focal length of 50 mm as shown in FIG. 3 by polishing.
【００４２】 図２における発光体７の窪み３０側に光源ＬＥＤ３１を、その接点から漏光し ないように不透明な筒で囲んで繋いだ。ＬＥＤは放射光度４ｃｄの白色光ＬＥＤ を使用した。 図１のカバー２５の蓋部２８の内側の凹部２９は図３の凸レンズ形８に嵌合す るような凹形状とし、アルミ蒸着による鏡面とした。また、図１の光導入発光体 ７の裏側のケーシング部にはアルミ蒸着による鏡面反射板を設けた。A light source LED 31 is connected to the dent 30 side of the light emitting body 7 in FIG. 2 by surrounding it with an opaque tube so as not to leak light from its contact point. As the LED, a white light LED having an emission intensity of 4 cd was used. The concave portion 29 inside the cover portion 28 of the cover 25 in FIG. 1 has a concave shape that fits into the convex lens shape 8 in FIG. 3, and has a mirror surface formed by aluminum evaporation. In addition, a mirror-like reflector made of aluminum vapor was provided in the casing part on the back side of the light-introducing light-emitting body 7 in FIG.
【００４３】 電源は電池とし、カバー２５を「閉」状態とし、スイッチ３４をＯＮとしＬＥ Ｄを発光させて輝度を測定したところ、４４００ ｃｄ／ｍ２であった。家庭で 用いる通常の２０Ｗ形蛍光灯が大凡５０００ ｃｄ／ｍ２程度の輝度であるゆえ 、携帯ライトとしては十分な拡散照明といえ、この場合の拡散発光効率はＬＥＤ の光度に対して大汎７０％であった。The power supply was a battery, the cover 25 was in the “closed” state, the switch 34 was turned on, the LED was lit, and the luminance was measured. The result was 4400 cd / m 2 . Since a normal 20 W fluorescent lamp used at home has a luminance of about 5000 cd / m 2 , it can be said that the light is sufficient as a portable light, and the diffuse luminous efficiency in this case is approximately 70% of the luminous intensity of the LED. %Met.
【００４４】 カバー２５を「開」状態とすると、図１の上部凸レンズ形からビーム性光線が 放射され、約５ｃｍ離れた部分にほぼ円形の直径大汎４ｍｍ程度のスポット的照 明が得られた。このスポット照明はきわめて照度が高く、微小部の観察に適した ものであった。かように本考案の光導入式携帯ライトは、光導入発光体の外周の 発光による拡散発光と、先端の凸レンズ形からのビーム放射性光線によるスポッ ト照明の何れも可能であり、極めて便利な携帯ライトの機能をもつことが分かっ た。When the cover 25 was in the “open” state, a beam-like light beam was emitted from the upper convex lens shape in FIG. 1, and a spot-like illumination having a diameter of about 4 mm was obtained in a portion approximately 5 cm away from the lens. . This spot illumination had extremely high illuminance and was suitable for observing minute parts. As described above, the light-introducing portable light of the present invention can perform both diffused light emission by emitting light on the outer periphery of the light-introducing illuminant and spot illumination by beam-emitting light from the convex lens at the tip, which is an extremely convenient portable light. It turned out to have a light function.
【００４５】[0045]
本考案は上記の通り構成されているので、次に記載する効果を奏する。 （１）白熱電球式携帯ライトの如き照度斑による放射模様が生じることなく、マ イルドな拡散性発光による照明が得られ、必要に応じて小さな部分を大きな光度 で照明するビーム性放射によるスポット照明を行うことのできるところの、両機 能を兼ね備えた光導入式ライトを提供し得た。 （２）白熱電灯や蛍光灯などの放電灯は、発光体が薄いガラス製であるので破損 し易く保護カバーが必要であるが、発光体自体がシンプルな合成樹脂製であるの で、発光体の保護カバーなどが不要であり、発光効率を低めず、構造も堅牢であ る。 （３）光源ＬＥＤは携帯ライトのケーシング内部にあり、光導入発光体は光の伝 達や放射媒体であるので、この部分が幾らか損傷しても発光機能は殆ど損なわれ ない。 （４）ＬＥＤ光源は熱の発生が少く、光導入発光体自身は全く発熱しない故安全 である。 （５）ＬＥＤを使用しているので発光効率は白熱電灯式の大凡１０倍程度、蛍光 灯などの放電灯の大凡３倍程度と発光効率が極めてよく、エネルギー効率がよい 。 （６）発光体自体は合成樹脂のみのシンプルな構造なので、大きな損傷がないか ぎり寿命は長く、半永久的耐久性がある。 （７）小型で堅牢な光源であるＬＥＤを使用するので、光導入発光体は衝撃に耐 え、消費電力が少なく、軽量で、小型で、堅牢で携帯に極めて便利である。 Since the present invention is configured as described above, the following effects can be obtained. (1) Illumination by mild diffused luminescence can be obtained without generating radiation patterns due to illuminance unevenness such as incandescent bulb-type portable lights, and spot illumination by beam radiation that illuminates small parts with large luminous intensity when necessary. A light-introducing light having both functions can be provided. (2) Discharge lamps, such as incandescent lamps and fluorescent lamps, are easily broken and require a protective cover because the luminous body is made of thin glass. However, the luminous body itself is made of a simple synthetic resin. No protective cover is required, the luminous efficiency is not reduced, and the structure is robust. (3) Since the light source LED is inside the casing of the portable light and the light-introducing luminous body is a medium for transmitting and emitting light, even if this part is slightly damaged, the light-emitting function is hardly impaired. (4) The LED light source is safe because it generates little heat and the light-introducing luminous body itself does not generate any heat. (5) Since the LED is used, the luminous efficiency is about 10 times that of an incandescent lamp type and about 3 times that of a discharge lamp such as a fluorescent lamp, so that the luminous efficiency is very good and the energy efficiency is good. (6) Since the luminous body itself has a simple structure made of only synthetic resin, it has a long life and semi-permanent durability as long as there is no major damage. (7) Since the LED, which is a small and robust light source, is used, the light-introducing luminous body is resistant to impact, consumes little power, is lightweight, small, robust and extremely convenient to carry.
【図１】光導入式携帯ライトの一例の斜視略図FIG. 1 is a schematic perspective view of an example of a light introduction type portable light.
【図２】光導入式携帯ライトの一例の側面略図FIG. 2 is a schematic side view of an example of a light introduction type portable light.
【図３】光導入発光体の部分断面拡大略図FIG. 3 is an enlarged schematic partial cross-sectional view of a light-introducing luminous body.
【図４】線状微小突起群が三角形の場合の部分断面拡大
略図FIG. 4 is an enlarged schematic partial cross-sectional view when a group of linear microprojections is a triangle;
【図５】線状微小突起群が矩形の場合の部分断面拡大略
図FIG. 5 is an enlarged schematic partial cross-sectional view when a linear microprojection group is rectangular.
１ コア合成樹脂層 ２ 鞘の役割の周囲空気層 ３ 光導入発光体外周の線状微小突起群 ４ 携帯ライトの外形 ７ 光導入発光体 ８ 光導入発光体先端の凸レンズ形 ９、９−１〜９−７ 線状微小突起群部のコア側のコア
／周囲空気境界面 １０、１０−１〜１０−７ 線状微小突起群部の外面 １１〜１４ 光導体内部の光線放射方向 １６−１〜１６−３ 線状微小突起群の矩形状突起 １７−１〜１７−３ 矩形突起間の溝 １８−１〜１８−５ 線状微小突起群の突起外面 １９−１〜１９−５ 線状微小突起群のコア側のコア／
周囲空気境界面 ２０−１〜２０−５ 矩形突起間の溝壁面 ２１〜２３ 光導体内部の光線放射方向 ２５ カバー ２８ 蓋部 ２９ 蓋部内側の凹状鏡面窪み ３０ 発光体の光導入部 ３１ ＬＥＤ素子 ３５ 発光体中の伝搬光線 ３６ 光導入発光体先端の凸レンズ形からの放射光 ３７ 凸レンズ形の焦点DESCRIPTION OF SYMBOLS 1 Core synthetic resin layer 2 Surrounding air layer of the role of a sheath 3 Linear minute projection group on the outer periphery of a light-introducing luminous body 4 Outline of a portable light 7 Light-introducing luminous body 8 Convex lens shape at the tip of a light-introducing luminous body 9, 9-1-1 9-7 Core / Ambient Air Interface at Core Side of Linear Microprojection Group 10, 10-1-10-7 Outer Surface of Linear Microprojection Group 11-14 Light Emission Direction Inside Light Guide 16-1 16-3 Rectangular projections of linear microprojection group 17-1 to 17-3 Groove between rectangular projections 18-1 to 18-5 External surface of linear microprojection group 19-1 to 19-5 Linear microprojection Core on core side of group /
Ambient air boundary surface 20-1 to 20-5 Groove wall surface between rectangular projections 21 to 23 Light emission direction inside light guide 25 Cover 28 Cover portion 29 Concave concave mirror inside cover 30 Light emitting portion of light emitter 31 LED element 35 propagating light rays in the luminous body 36 radiated light from the convex lens shape at the tip of the light-introducing luminous body 37 focal point of the convex lens shape
Claims (3)
の双方が可能な携帯ライトであって、その光導入発光体
が拡散性の照明においては下記（１）であり、ビーム放
射性スポット照明においては下記（２）であることを兼
ね備えていることを特徴とする光導入式携帯ライト。 （１）光導部として透明合成樹脂のコアのみから成り、
鞘の役割を周囲空気層とする断画が円形の線状、柱状も
しくは中空状の光導体に、該光導体の長手方向の任意位
置について、長手方向と実質的に直角方向に外周に沿っ
て外周全部あるいは外周の一部に線状微小突起群を有す
る部分を設けることにより、該光導体端部に光線を導入
したときに該突起群を有する恰もネジ状の外周部全体、
あるいは恰もラック状の外周の一部が漏光部を形成して
拡散性発光する構造。 （２）透明合成樹脂のコアのみから成り、鞘の役割を周
囲空気層とする断面が円形の線状、柱状もしくは中空状
の光導体において、光源側の反対側の端部が凸レンズ形
になっていて、光源側から光線を導入したときに、伝搬
光が該凸レンズ形から外に向かってビーム放射性のスポ
ット発光する構造。1. A portable light capable of performing both diffuse lighting and beam-radiating spot lighting, wherein the light-introducing illuminant is the following (1) in the case of diffuse lighting, and is the following in the case of beam-radiating spot lighting. (2) A light-introducing portable light characterized by having the following. (1) The light guide section is made of only a transparent synthetic resin core,
A cut having a role of a sheath as an ambient air layer is formed on a circular linear, columnar or hollow light guide, at any position in the longitudinal direction of the light guide, along the outer periphery in a direction substantially perpendicular to the longitudinal direction. By providing a portion having a linear microprojection group on the entire outer circumference or a part of the outer circumference, the entire screw-shaped outer peripheral portion having the projection group when a light beam is introduced into the end portion of the light guide,
Or a structure in which a part of a rack-shaped outer periphery forms a light leakage part to emit diffused light. (2) In a linear, columnar, or hollow light guide having a circular cross-section with only the sheath made of a transparent synthetic resin and having a role of a sheath as an ambient air layer, the end opposite to the light source side has a convex lens shape. And a structure in which, when a light beam is introduced from the light source side, the propagating light emits a beam-emitting spot outward from the convex lens shape.
入発光体の端部凸レンズ形に嵌合する如き鏡面凹部を形
成した蓋で、該凸レンズ形を覆うことが可能なることを
特徴とする請求項１に記載する光導入式携帯ライト。2. When only the diffused illumination is used, it is possible to cover the convex lens shape with a lid having a mirror concave portion which fits into the end convex lens shape of the light-introducing luminous body. The light-introducing portable light according to claim 1.
光ダイオードであることを特徴とする請求項１、請求項
２に記載する光導入式携帯ライト。3. The light-introducing portable light according to claim 1, wherein the light source at the light-introducing end of the light-introducing luminous body is a light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001003340U JP3081186U (en) | 2001-04-18 | 2001-04-18 | Light-introduced portable light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001003340U JP3081186U (en) | 2001-04-18 | 2001-04-18 | Light-introduced portable light |
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| Publication Number | Publication Date |
|---|---|
| JP3081186U true JP3081186U (en) | 2001-10-26 |
Family
ID=43213968
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| Country | Link |
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| JP (1) | JP3081186U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013140776A (en) * | 2011-12-28 | 2013-07-18 | Semileds Optoelectronics Co Ltd | Light-emitting diode bulb having light extracting rough surface pattern and method of fabrication |
| JP2015053115A (en) * | 2013-09-05 | 2015-03-19 | パナソニック株式会社 | Lighting system |
-
2001
- 2001-04-18 JP JP2001003340U patent/JP3081186U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013140776A (en) * | 2011-12-28 | 2013-07-18 | Semileds Optoelectronics Co Ltd | Light-emitting diode bulb having light extracting rough surface pattern and method of fabrication |
| JP2015053115A (en) * | 2013-09-05 | 2015-03-19 | パナソニック株式会社 | Lighting system |
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