JPS5949504A - Illumination device - Google Patents
Illumination deviceInfo
- Publication number
- JPS5949504A JPS5949504A JP57159581A JP15958182A JPS5949504A JP S5949504 A JPS5949504 A JP S5949504A JP 57159581 A JP57159581 A JP 57159581A JP 15958182 A JP15958182 A JP 15958182A JP S5949504 A JPS5949504 A JP S5949504A
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical fiber
- control body
- light emitting
- light control
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
- G02B6/0008—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted at the end of the fibre
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は光ファイバの先端に光を放射する制光体を設け
てなる照明装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an illumination device provided with a light control body for emitting light at the tip of an optical fiber.
光ファイバの先端を直角に切断して光射出部を形成し、
光源からの光を伝搬してこの射出部から放射させる照明
装置がある。この１ｇ合、射出部から放射される光束の
拡り角度はせいぜい６００程度に過ぎず、これでは照明
用として不充分である。The tip of the optical fiber is cut at a right angle to form a light emitting part,
There is an illumination device that propagates light from a light source and radiates it from this emission part. For this 1 g, the spread angle of the light beam emitted from the emission part is only about 600 at most, which is insufficient for illumination.
まだ、光ファイバの先端に球形の透光性制光体を袋層し
て、光ファイバを伝搬された光を制光体表面から放射さ
せることが考えられる。しかし、この場合、光ファイバ
と制光体とを元竿的に連結するコネクタが必要で、装置
的に複雑で高価になるばかりか、接続部の光損失が】（
）〜２０係にも達し不経済である。さらに、この場合、
光ファイバから射出された光を制光体表面に放射状に導
くだめの格別な手段も必要になる。Still, it is conceivable to cover the tip of an optical fiber with a spherical light-transmitting light control material, and to cause the light propagated through the optical fiber to be emitted from the surface of the light control material. However, in this case, a connector is required to connect the optical fiber and the light control body like a main rod, which not only makes the equipment complicated and expensive, but also increases optical loss at the connection part.
) to 20 units, which is uneconomical. Furthermore, in this case,
A special means is also required to guide the light emitted from the optical fiber radially to the light suppressor surface.
格別なコネクタや保持具を必要とせず、接続の光損失が
少なく、しかも制光体を自在に効換できる照明装置を提
供することを目的とする。To provide a lighting device that does not require special connectors or holders, has little light loss in connection, and can freely change the effectiveness of a light control body.
光ファイバの光射出側にねじ状をなすフレネルレンズか
らなる光射出部を形成し、制光体にはこのねじに噛み合
うめねじ状の受光部を形成したことにより、光ファイバ
の光射出部を制光体の受光部にねじ込んで機械的連結と
ともに光学的連結も同時に行なうことである。By forming a light emitting part consisting of a screw-shaped Fresnel lens on the light emitting side of the optical fiber, and forming a female thread-shaped light receiving part on the light control body that engages with this screw, the light emitting part of the optical fiber can be It is screwed into the light receiving part of the light control body to perform both mechanical and optical connection at the same time.
本発明の詳細を図示の実施例によって説明する。 The details of the invention will be explained by means of illustrated embodiments.
（１）は光源、（２）はこの光源（１）の光を伝搬する
光ファイバ、（３）はこの光ファイバ（２）の射出側に
連結された制光体である。上記光源（１）はレーザー発
振装置、ハロゲン電球発光装置などの人工光源でもよく
、太陽集光装置などの天然光源でもよく、要は強力な光
を光ファイバ（２）に入射するものであればよい。(1) is a light source, (2) is an optical fiber that propagates the light from this light source (1), and (3) is a light control body connected to the exit side of this optical fiber (2). The light source (1) may be an artificial light source such as a laser oscillation device or a halogen bulb light emitting device, or may be a natural light source such as a solar concentrator. good.
上記光ファイバ（２）は第２図示のように、高屈折率の
ガラスからなるコア（２ａ）の周面を低屈折率のガラス
からなるクラッド（２ｂ）で被呵したもので光源（１）
からの光をほとんど４月央なく伝搬するものである。そ
して、この光ファイバ（２）の先端には第３図示のよう
に、側面に形成されたねじ状のフレネルレンズ（４ａ）
および先端の凸レンズ（４ｂ）からなる光射出部（４）
が形成しである。上記側）Ｙ、体（３）は第４図示のよ
うに透明合成樹脂、透明ガラスなどの透明物質を所望の
形状たとえば卵形に成形したもので、光射出部（４）の
側面に形成されたフレネルレンズ（４ａ）がねじ込まれ
るめねじ（３ａ）を兼ねた側面および凸レンズ（４ｂ）
に対応する凹面をなす底面（３ｂ）からなる受光、部（
３ｃ）を有し、かつこの受光部（３ｃ）から表面に連通
ずる光ファイバ（３ｄ）？ｉ７埋設しである。As shown in the second diagram, the optical fiber (2) has a core (2a) made of glass with a high refractive index and a cladding (2b) made of glass with a low refractive index covering the circumferential surface of the core (2a).
The light from the sky propagates almost all the way through April. At the tip of this optical fiber (2), as shown in the third figure, there is a screw-shaped Fresnel lens (4a) formed on the side surface.
and a light emitting part (4) consisting of a convex lens (4b) at the tip.
is formed. As shown in the fourth figure, the body (3) is formed by molding a transparent material such as transparent synthetic resin or transparent glass into a desired shape, for example, an oval shape, and is formed on the side surface of the light emitting part (4). Side surface and convex lens (4b) that also serves as a female thread (3a) into which the Fresnel lens (4a) is screwed
The light-receiving part (3b) consists of a concave bottom surface (3b) corresponding to
3c) and an optical fiber (3d) that communicates from this light receiving portion (3c) to the surface? i7 is buried.
上記光導出面（４）を形成するには釘型に光ファイバ（
３ｄ）を配設しついでファイバ（２）の先端を挿入して
からこの釘型に高屈折率の溶融ガラスを注入（７て注形
すればよい。上記制光体＋：４１の受光面（３ｃ）は制
光体（３）が合成樹脂製ならば機械加工でも形成できる
が、ガラスの場合は注形によらねばならない。そして、
第５図示のように、光射出部（４）を制光体（３）の受
光部（３ｃ）にねじ込んで機械的ならびに光学的に結合
する。このとき、光射出部（４）と受光部（３ｃ）とが
隙間なく゛密着していることが好ましいが、ｌトむを得
なければ、隙間に流動パラフィンのような透明液体を介
在させてもよい。To form the light emitting surface (4), a nail-shaped optical fiber (
3d), insert the tip of the fiber (2), and then pour high refractive index molten glass into the nail shape (7). 3c) can be formed by machining if the light control body (3) is made of synthetic resin, but if it is made of glass, it must be formed by casting.
As shown in Figure 5, the light emitting part (4) is screwed into the light receiving part (3c) of the light control body (3) to mechanically and optically couple it. At this time, it is preferable that the light emitting part (4) and the light receiving part (3c) are in close contact with each other without any gap, but if it is unavoidable, a transparent liquid such as liquid paraffin may be interposed in the gap. good.
この照明装置は光源１１）を作動するとその光が光ファ
イバ（２）を伝って１ｕ（１光体（３）に搬送される。In this lighting device, when the light source 11) is activated, the light is transmitted through the optical fiber (2) to 1u (1 light body (3)).
このとき、光ファイバ（２）の光は光射出部（４ｃ）の
全面から放出され、制光体（３）の受光部（３ｃ）から
体内および光ファイバ（３ｄ）に入射する。そして、体
内に入射した光は制光体（３）の表面から外界に放射さ
れ、また、光ファイバ（３ｄ）に入射した光はその先端
から放射される。この結果、制光体（３）はその表面全
体が輝くほか、光ファイバ（３ｄ）先端が特に明るい点
となってかＦく。At this time, the light of the optical fiber (2) is emitted from the entire surface of the light emitting part (4c) and enters the body and the optical fiber (3d) from the light receiving part (3c) of the light control body (3). The light that has entered the body is radiated to the outside world from the surface of the light control body (3), and the light that has entered the optical fiber (3d) is radiated from its tip. As a result, the entire surface of the light control body (3) shines, and the tip of the optical fiber (3d) becomes a particularly bright spot.
この照明装置は光ファイバ（２）先端のねじがそのまま
光射出部（４）となり、これがめねじ（３ａ）をなす受
光部（３ｃ）にねじ込まれているので、機械的接続と同
時にｉＣ学的接続がなされ、しだがって、格別のコネク
タを用いる必要がなく、従来の端面接触におけるような
軸ずれ、位置ずれなどがなくなり、この結果、光の接続
損失がほとんどなくなった。In this lighting device, the screw at the tip of the optical fiber (2) becomes the light emitting part (4), which is screwed into the light receiving part (3c) which forms the female thread (3a), so that it is mechanically connected and at the same time A connection is made, therefore, there is no need to use a special connector, and there is no axis misalignment, misalignment, etc. as in conventional end face contact, and as a result, optical connection loss is almost eliminated.
ちなみに従来のコネクタは接続損失が１０〜２０係に達
するので、これに比べて格段の効率向上になる。まだ、
制光体（３）を父換自由にすることもできるし、あるい
は透明接着剤で光導出面（４）に永久接着することもで
きる。Incidentally, since the connection loss of conventional connectors reaches 10 to 20 units, the efficiency is significantly improved compared to this. still,
The light suppressor (3) can be free to change, or it can be permanently glued to the light output surface (4) with a transparent adhesive.
なお、前述の実施例において１ｌｉｌｌＬ体（３）は透
明体中に光ファイバを埋設したが、本発明においては光
ファイバを埋設しなくてもよく、逆に非透光体または拡
散透光体中に光ファイバを埋設してもよく、要は光ファ
イバ（２）から入射した光をその表面の一部または全部
から放出すればよい。まだ、尤ファイバ（２）先端の光
射出部（４）は少なくともねじ状のフレネルレンズがあ
ればよく、′１に端の凸レンズは不ｏＪ欠ではなく、平
端面であってもよい。In addition, in the above-mentioned example, the optical fiber was embedded in the transparent body in the 1lillL body (3), but in the present invention, it is not necessary to embed the optical fiber. An optical fiber may be embedded in the optical fiber (2), and the point is that the light incident from the optical fiber (2) may be emitted from part or all of its surface. However, the light emitting part (4) at the tip of the fiber (2) only needs to have at least a screw-shaped Fresnel lens, and the convex lens at the end at '1' does not necessarily have a flat end surface, but may have a flat end surface.
そして、制光体は必要に応じて青色を施してもよく、ま
た模様を施してもよい。The light control body may be colored blue or patterned if necessary.
本発明の照明装置は光源から光を伝搬する光フアイバの
射出側に搬送された光を導出するねじ状のフレネルレン
ズをなす光射出部を設け、光放射用制光体にめねじ状の
受光部を設けたので、格別なコネクタや保持具を使用し
なくとも光ファイバと制光体とを機械的ならびに光学的
に連結でき、光の接続損失が少なく、さらに制光体を交
換自由にすることもできる。The illumination device of the present invention is provided with a light emitting part in the form of a screw-shaped Fresnel lens that guides the transmitted light to the emission side of an optical fiber that propagates light from a light source, and a light receiving part in the form of a female thread in the light emission control body. The optical fiber and the light control body can be mechanically and optically connected without using special connectors or holders, reducing optical connection loss, and making it possible to replace the light control body freely. You can also do that.
第１図は本発明の照明装置の一実施例の説明図、第２図
は同じく光ファイバの中間を切断して断面を示す斜視図
、第３図は同じく光ファイバの先端の光導出面を示す斜
視図、第４図は同じく制光体の断面図、第５図は同じく
光ファイノくに制光体を連結し７た正面図である。
（１）・・・光＋Ｌｆ （２）・・・光
ファイバ（３）・・・制光体 （３ｃ）・・受
光部（４）・光射出部
代理人 弁理士 井 上 −男FIG. 1 is an explanatory diagram of an embodiment of the illumination device of the present invention, FIG. 2 is a perspective view showing a cross section of an optical fiber cut in the middle, and FIG. 3 is a view showing a light emitting surface at the tip of the optical fiber. 4 is a sectional view of the light control body, and FIG. 5 is a front view of the light control body connected to the optical fiber. (1)...Light+Lf (2)...Optical fiber (3)...Light control body (3c)...Light receiving section (4)/Light emitting section Agent Patent attorney Inoue -Male
Claims (1)
ァイバの光射出側に設けられたねじ状をなすフレネルレ
ンズからなる光射出部と、この光射出部にねじ込まれる
めねじ状の受光部を有しこの受光部から入射した光を表
面から放射する制光体と、 を具備したことを特徴とする照明装置。 （２） 制光体は受光部から表面に達する光ファイバ
が埋設されていることを特徴とする特許請求の範ｖＦ４
第１項記載の照明装置。 （；幻 制光体は透光性物質中に光ファイバが埋設され
ていることを特徴とする特許請求の範囲第２項記載の照
明装置。 （４） 光射出部の先端は凸レンズに形成されている
ことを特徴とする特許請求の範囲第１項記載の照明装置
。[Scope of Claims] (1) An optical fiber that propagates light from a light source, a light emitting section consisting of a screw-shaped Fresnel lens provided on the light emitting side of the optical fiber, and a light emitting section that is screwed into the light emitting section. 1. A lighting device comprising: a light control body having a female thread-shaped light receiving section and radiating light incident from the light receiving section from a surface thereof. (2) Claim vF4 characterized in that the light control body is embedded with an optical fiber that reaches the surface from the light receiving part.
The lighting device according to item 1. (; Illumination device according to claim 2, characterized in that the light control body has an optical fiber embedded in a translucent material. (4) The tip of the light emitting part is formed into a convex lens. The lighting device according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57159581A JPS5949504A (en) | 1982-09-16 | 1982-09-16 | Illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57159581A JPS5949504A (en) | 1982-09-16 | 1982-09-16 | Illumination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5949504A true JPS5949504A (en) | 1984-03-22 |
Family
ID=15696834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57159581A Pending JPS5949504A (en) | 1982-09-16 | 1982-09-16 | Illumination device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949504A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61133908U (en) * | 1985-02-09 | 1986-08-21 | ||
| JPS61502155A (en) * | 1984-05-09 | 1986-09-25 | ケセナ−，ヘルマン，ポウルス，マリア | Method and apparatus for forming aesthetically spectacular liquid displays |
| JPH02143202A (en) * | 1988-11-25 | 1990-06-01 | Takashi Mori | Optical radiator |
| WO1998053348A1 (en) * | 1997-05-21 | 1998-11-26 | Mcgaffigan Thomas H | Optical light pipes with laser light appearance |
| WO2000031465A1 (en) * | 1998-11-20 | 2000-06-02 | Mcgaffigan Thomas H | Optical light pipes with laser light appearance |
-
1982
- 1982-09-16 JP JP57159581A patent/JPS5949504A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61502155A (en) * | 1984-05-09 | 1986-09-25 | ケセナ−，ヘルマン，ポウルス，マリア | Method and apparatus for forming aesthetically spectacular liquid displays |
| JPS61133908U (en) * | 1985-02-09 | 1986-08-21 | ||
| JPH0247531Y2 (en) * | 1985-02-09 | 1990-12-13 | ||
| JPH02143202A (en) * | 1988-11-25 | 1990-06-01 | Takashi Mori | Optical radiator |
| WO1998053348A1 (en) * | 1997-05-21 | 1998-11-26 | Mcgaffigan Thomas H | Optical light pipes with laser light appearance |
| WO2000031465A1 (en) * | 1998-11-20 | 2000-06-02 | Mcgaffigan Thomas H | Optical light pipes with laser light appearance |
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