JPS6224765B2 - - Google Patents

Info

Publication number
JPS6224765B2
JPS6224765B2 JP58215809A JP21580983A JPS6224765B2 JP S6224765 B2 JPS6224765 B2 JP S6224765B2 JP 58215809 A JP58215809 A JP 58215809A JP 21580983 A JP21580983 A JP 21580983A JP S6224765 B2 JPS6224765 B2 JP S6224765B2
Authority
JP
Japan
Prior art keywords
light guide
light
hole
guide rod
branching device
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.)
Expired
Application number
JP58215809A
Other languages
Japanese (ja)
Other versions
JPS60107604A (en
Inventor
Takashi Mori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to JP21580983A priority Critical patent/JPS60107604A/en
Priority to US06/653,983 priority patent/US4690490A/en
Priority to DE8484111435T priority patent/DE3476110D1/en
Priority to NZ22554384A priority patent/NZ225543A/en
Priority to EP84111435A priority patent/EP0137402B1/en
Priority to NZ209674A priority patent/NZ209674A/en
Priority to CA000463981A priority patent/CA1244695A/en
Priority to AU33518/84A priority patent/AU580966B2/en
Priority to KR1019840005919A priority patent/KR890003112B1/en
Publication of JPS60107604A publication Critical patent/JPS60107604A/en
Publication of JPS6224765B2 publication Critical patent/JPS6224765B2/ja
Priority to SG770/89A priority patent/SG77089G/en
Priority to HK65/90A priority patent/HK6590A/en
Granted legal-status Critical Current

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S11/00—Non-electric lighting devices or systems using daylight
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2817—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using reflective elements to split or combine optical signals

Description

【発明の詳細な説明】 技術分野 本発明は、光導体内を伝搬されてくる光エネル
ギーの一部を分岐して該光導体外へ取り出すよう
にした光分岐装置に関する。TECHNICAL FIELD The present invention relates to an optical branching device for branching a part of optical energy propagated within a light guide and taking it out of the light guide.

従来技術 本出願人は、先に、太陽光或いは人工光をレン
ズ等によつて集束して光導体内に導入し、該光導
体を通して任意所望の箇所へ伝達して照明その他
の使用に供することについて種々提案した。而し
て、その際、光導体内を伝搬されてくる光エネル
ギーをその伝搬途中において前記光導体から分岐
して取り出すことができれば、光エネルギーの利
用効率をなお一層向上させることができるが、従
来そのような光分岐手段が存在せず、非常に不便
であつた。Prior Art The present applicant has previously proposed that sunlight or artificial light is focused by a lens or the like, introduced into a light guide, and transmitted through the light guide to any desired location for illumination or other uses. Various proposals were made. In this case, if the light energy propagating within the light guide can be branched and extracted from the light guide during its propagation, the efficiency of use of light energy can be further improved. There was no such optical branching means, which was extremely inconvenient.

目 的 本発明は、上述のごとき実情に鑑みてなされた
もので、特に、光導体ロツド内を伝搬されてくる
光エネルギーの一部を該光導体ロツドから分岐し
て取り出すことのできる光分岐装置を提供するこ
とを目的としてなされたものである。Purpose The present invention was made in view of the above-mentioned circumstances, and in particular, an optical branching device capable of branching and extracting a part of the light energy propagated within a light guide rod from the light guide rod. It was made with the purpose of providing.

構 成 第１図は、本発明による分岐装置の一実施例を
説明するための正面図、第２図は、第１図の―
線断面図で、図中、１は第１の光導体ロツド
で、該光導体ロツド１は径方向に貫通孔２が設け
られており、該貫通孔２の一面５ａは図示のよう
に光導体ロツド１の軸方向に対してある傾斜をも
つている。３は第２の光導体ロツドで、該光導体
ロツド３は前記第１の光導体ロツド１の外周部に
おいて、前記貫通孔２の傾斜面５ａに対向する位
置に固着されている。ただし、光導体ロツド１に
傾斜面５ａを有するような孔をあけることは困難
であるので、実際には、光導体ロツド１と同一の
光導体ロツドを所望の厚さで輪切りにし、この輪
切りにした光導体を例えば中心部を通して２分
し、一方の光導体をそのまゝ例えば光導体４と
し、他方の光導体の切断面を傾斜面５ａに加工し
て光導体５とし、これらを光導体ロツド１，１間
に光学のり等で接着して例えば図示のごとき貫通
孔２を設ける。Configuration FIG. 1 is a front view for explaining one embodiment of the branching device according to the present invention, and FIG. 2 is the -
This is a line sectional view. In the figure, 1 is a first light guide rod, and the light guide rod 1 is provided with a through hole 2 in the radial direction, and one surface 5a of the through hole 2 is provided with a light guide as shown in the figure. It has a certain inclination with respect to the axial direction of the rod 1. Reference numeral 3 designates a second light guide rod, and the light guide rod 3 is fixed to the outer peripheral portion of the first light guide rod 1 at a position facing the inclined surface 5a of the through hole 2. However, since it is difficult to make a hole in the light guide rod 1 having the inclined surface 5a, in reality, the same light guide rod as the light guide rod 1 is cut into rounds to the desired thickness. For example, the light guide is divided into two parts through the center, one of the light guides is used as it is, for example, as the light guide 4, and the cut surface of the other light guide is processed into an inclined surface 5a to become the light guide 5, and these are used as the light guide. For example, a through hole 2 as shown in the figure is provided between the rods 1 by adhering them with optical glue or the like.

第３図は、前記貫通孔２に嵌入される光導体の
一例を示す図で、ａは平面図、ｂは側面図で、実
際には、斯様な光導体６を少なくとも２本準備
し、これらを第４図に６ａ，６ｂにて示すように
前記貫通孔２の両側より該貫通孔２内に挿入す
る。而して、この場合、光導体６ａ，６ｂの挿入
側面６a′と６b′とが一致するまでこれら光導体６
ａ，６ｂを貫通孔５内に挿入すると、光導体ロツ
ド１内を矢印Ａ方向に伝搬されてきた光は全て矢
印Ｂ方向に伝搬されていくが、挿入側端面６a′，
６b′との間に間隙を設けておく時は、該間隙に
相当する部分において、矢印Ａ方向から伝搬され
てきた光の一部が反射されて矢印Ｃ方向に伝搬さ
れ、光導体ロツド３を通して取り出される。そし
て、この光導体ロツド３より取り出される光の量
は前記間隙ｌの長さつまり光導体６ａ，６ｂの挿
入量を変えることによつて調整することができ
る。而して、その際、間隙ｌ内の空気を外部に逃
してやらなければ、光導体６ａと６ｂの端面６
a′と６b′を密着させることができないので、この
ような問題を避けるために、本発明においては光
導体６ａ，６ｂのいずけか一方又は両方に軸方向
に細い貫通孔を明けられている。 FIG. 3 is a diagram showing an example of a light guide fitted into the through hole 2, in which a is a plan view and b is a side view.Actually, at least two such light guides 6 are prepared, These are inserted into the through hole 2 from both sides of the through hole 2, as shown at 6a and 6b in FIG. In this case, the light guides 6a, 6b are inserted until the insertion sides 6a' and 6b' of the light guides 6a and 6b coincide with each other.
When the rods 6a and 6b are inserted into the through hole 5, all the light that has been propagated in the direction of arrow A in the light guide rod 1 is propagated in the direction of arrow B, but the insertion side end faces 6a',
6b', a part of the light propagated in the direction of arrow A is reflected in the part corresponding to the gap and propagated in the direction of arrow C, and passes through the light guide rod 3. taken out. The amount of light extracted from the light guide rod 3 can be adjusted by changing the length of the gap l, that is, the amount of insertion of the light guides 6a and 6b. At that time, unless the air in the gap l is released to the outside, the end surfaces 6 of the light guides 6a and 6b
Since a' and 6b' cannot be brought into close contact with each other, in order to avoid such a problem, in the present invention, a thin through hole is formed in one or both of the light guides 6a and 6b in the axial direction. There is.

以上に、本発明の一実施例について説明した
が、本発明は上記実施例に限定されるものではな
く、例えば、第５図に示すように、前記貫通孔２
を平行四辺形に形成し、この平行四辺形の貫通孔
２′内に第６図に示すような該貫通孔２′に整合す
る平行四辺形の面２″を有する光導体７ａ，７ｂ
を準備し、これらを前記光導体６ａ，６ｂと同様
にして貫通孔２′に挿脱し得るようにしてもよい
ことは容易に理解されよう。また、前記実施例に
おいては、光導体６ａ，６ｂ、又は、７ａ，７ｂ
を１対使用する場合について説明したが、光導体
６ａ，６ｂ又は７ａ，７ｂを更に分割し、例え
ば、第７図に示すように、光導体７ａ（及び７
ｂ）を更に２分割して（光導体７ｂは光導体７ａ
と全く同じであるので、第７図においては省略し
てある）７a1，７b2とし、これら７a1と７a2とに
よつて前記光導体７ａと同様の作用をさせるよう
にすることも可能であり、このようにすると、そ
れぞれの対毎に間隙を調整することができるので
更に微細に分岐光量を調整することができる。 Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, as shown in FIG.
are formed into a parallelogram, and have parallelogram surfaces 2'' in the parallelogram through hole 2' which align with the through hole 2' as shown in FIG.
It will be readily understood that these may be prepared and inserted into and removed from the through hole 2' in the same manner as the light guides 6a and 6b. Further, in the embodiment, the light guides 6a, 6b or 7a, 7b
The case where one pair of light guides 6a, 6b or 7a, 7b is used has been described, but for example, as shown in FIG.
b) is further divided into two (light guide 7b is divided into light guide 7a)
It is also possible to use 7a 1 and 7b 2 (which are omitted in FIG. 7 because they are exactly the same as 7a 1 and 7b 2), and have these 7a 1 and 7a 2 act in the same way as the light guide 7a. In this way, the gap can be adjusted for each pair, so the amount of branched light can be adjusted more finely.

効 果 以上の説明から明らかなように、本発明による
と、簡単かつ安価な構成によつて、光導体ロツド
内を伝搬されてくる光を分岐して取り出すことが
でき、しかも、その取り出し光量を容易に調整す
ることのできる光分岐装置を提供することができ
る。Effects As is clear from the above explanation, according to the present invention, the light propagated in the light guide rod can be branched and extracted using a simple and inexpensive configuration, and the amount of extracted light can be reduced. A light branching device that can be easily adjusted can be provided.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明による光分岐装置の一実施例
を説明するための側面図、第２図は、第１図の
―線断面図、第３図は、本発明の光分岐装置に
使用する光導体の一例を示す図、第４図は、本発
明による光分岐装置の一使用状態を示す断面図、
第５図は、本発明の他の実施例を示す側面図、第
６図及び第７図は、それぞれ第５図に示した実施
例の光分岐装置に使用して好適な光導体の例を示
す図である。 １……光導体ロツド、２，２′……貫通孔、３
……光導体ロツド、４，５，６ａ，７ａ，７ｂ，
７a1，７a2……光導体。 FIG. 1 is a side view for explaining an embodiment of the optical branching device according to the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. FIG. 4 is a cross-sectional view showing one state of use of the optical branching device according to the present invention;
FIG. 5 is a side view showing another embodiment of the present invention, and FIGS. 6 and 7 each show an example of a light guide suitable for use in the optical branching device of the embodiment shown in FIG. FIG. 1... Light guide rod, 2, 2'... Through hole, 3
...Light guide rod, 4, 5, 6a, 7a, 7b,
7a 1 , 7a 2 ... light guide.

Claims (1)

【特許請求の範囲】[Claims] １ 半径方向に貫通されかつ軸方向に対して傾斜
した面を有する貫通孔を有する第１の光導体ロツ
ドと、該第１の光導体ロツドの外周面において前
記傾斜面に対向した位置に固着された第２の光導
体ロツドと、前記傾斜面に係合する面を有して前
記貫通孔内に挿脱自在に嵌入される少なくとも１
対の第３及び第４の光導体とを有し、該第３及び
第４の光導体を前記貫通孔の両端部から該貫通孔
内に挿入するようにした光分岐装置において、前
記第３又は第４の光導体に軸方向に延長する空気
通路を有することを特徴とする光分岐装置。1. A first light guide rod having a through hole extending in the radial direction and having a surface inclined with respect to the axial direction; a second light guide rod having a surface that engages with the inclined surface, and at least one rod that is removably inserted into the through hole.
an optical branching device having a pair of third and fourth light guides, the third and fourth light guides being inserted into the through hole from both ends of the through hole; Alternatively, an optical branching device characterized in that the fourth light guide has an air passage extending in the axial direction.
JP21580983A 1983-09-27 1983-11-16 Optical branching device Granted JPS60107604A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP21580983A JPS60107604A (en) 1983-11-16 1983-11-16 Optical branching device
US06/653,983 US4690490A (en) 1983-09-27 1984-09-24 Light diverting device
NZ209674A NZ209674A (en) 1983-09-27 1984-09-25 Light guide light diversion
NZ22554384A NZ225543A (en) 1983-09-27 1984-09-25 Optical conductor light diverter
EP84111435A EP0137402B1 (en) 1983-09-27 1984-09-25 Light diverting device
DE8484111435T DE3476110D1 (en) 1983-09-27 1984-09-25 Light diverting device
CA000463981A CA1244695A (en) 1983-09-27 1984-09-25 Light diverting device
AU33518/84A AU580966B2 (en) 1983-09-27 1984-09-26 Light diverting device
KR1019840005919A KR890003112B1 (en) 1983-09-27 1984-09-26 Light diverting device
SG770/89A SG77089G (en) 1983-09-27 1989-11-30 Light diverting device
HK65/90A HK6590A (en) 1983-09-27 1990-01-25 Light diverting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21580983A JPS60107604A (en) 1983-11-16 1983-11-16 Optical branching device

Publications (2)

Publication Number Publication Date
JPS60107604A JPS60107604A (en) 1985-06-13
JPS6224765B2 true JPS6224765B2 (en) 1987-05-29

Family

ID=16678613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21580983A Granted JPS60107604A (en) 1983-09-27 1983-11-16 Optical branching device

Country Status (1)

Country Link
JP (1) JPS60107604A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4132071A1 (en) * 1991-09-26 1993-04-08 Kernforschungsz Karlsruhe COUPLING ELEMENT FOR LIGHT GUIDE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069608A (en) * 1983-09-27 1985-04-20 Takashi Mori Optical branching device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069608A (en) * 1983-09-27 1985-04-20 Takashi Mori Optical branching device

Also Published As

Publication number Publication date
JPS60107604A (en) 1985-06-13

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