JPS6079304A - Optical slip ring device - Google Patents
Optical slip ring deviceInfo
- Publication number
- JPS6079304A JPS6079304A JP58187794A JP18779483A JPS6079304A JP S6079304 A JPS6079304 A JP S6079304A JP 58187794 A JP58187794 A JP 58187794A JP 18779483 A JP18779483 A JP 18779483A JP S6079304 A JPS6079304 A JP S6079304A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- light guide
- optical signal
- diameter
- guide ring
- 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.)
- Granted
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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3604—Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】
する可動側との間で、該可動側の回転位置に拘らず光信
号の伝送を行なうようにした光スリップリング装置に関
する。DETAILED DESCRIPTION OF THE INVENTION This invention relates to an optical slip ring device that transmits optical signals between a movable side and a movable side regardless of the rotational position of the movable side.
従来、かかるスリップリング装置では、可動側と一体的
な光導リングの内周面を凹凸形状とし、光ファイバなど
で光導リング内に入射された光信− 号を前記凹凸形状
の内周面で散乱させ、光導リング外周面に対向して配置
された集光レンズなとて集光して光ファイバで出射する
ようにしている。Conventionally, in such a slip ring device, the inner circumferential surface of the light guiding ring that is integral with the movable side has an uneven shape, and the optical signal that is input into the light guiding ring through an optical fiber or the like is scattered by the uneven inner circumferential surface. A condensing lens disposed opposite the outer peripheral surface of the light guide ring condenses the light and outputs it through an optical fiber.
このような、従来構造では、光４リングの内周面で乱射
された光は、光導リングの全外周面から放射されるので
、集光レンズで集光し得る光量は入射光量に対してわず
かな量であり、減衰量が大きい。また光導リングの内周
面に凹凸を形成するために煩雑な加工を施さなければい
けない。In such a conventional structure, the light scattered on the inner peripheral surface of the light 4 ring is emitted from the entire outer peripheral surface of the light guide ring, so the amount of light that can be collected by the condenser lens is only a small amount compared to the amount of incident light. The amount of attenuation is large. Further, complicated processing must be performed to form irregularities on the inner circumferential surface of the light guiding ring.
本発明は、そのような事情に鑑みてなされたものであり
、極めて簡単な構造により、減衰量を低減して光信号の
伝送を行ない得るようＫした光スリツプリング装置を提
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 of the present invention is to provide an optical slip ring device which has an extremely simple structure and is capable of reducing attenuation and transmitting optical signals. do.
以下、図面により本発明の一実施例について説明すると
、先ず第１図において、光透過率の大きい合成樹脂から
成る第１光導リング１は第１保持体２に保持され、光透
過率の大きい合成便脂がら成り第１光導リング１の内周
面１ａに近接して対向する外周面３ａを有する第２光導
リング３は第２保持体４に保持され、第２保持体４は相
対回転可能に第１保持体２に装着される。光信号は、た
とえば第１保持体２の第１接続部５から第１光導リング
１内に導かれ、第１光導リング１の内周面１ａから第２
光導リング３の外周面３ａを経て第２光導リング３内に
導かれ、さらに第２保持体４の第２接続部６から取出さ
れる。しかも、第１および第２保持体２．４の相対位置
の如何に拘らず、第１光導リング１の内周面１ａと、第
２光導リング３の外周面３ａとは近接して対向しており
、それらの内周面１ａおよび外周面３ａを介して光信号
の伝送が行なわれる。Hereinafter, one embodiment of the present invention will be described with reference to the drawings. First, in FIG. The second light guide ring 3, which is made of stool fat and has an outer circumferential surface 3a close to and opposite to the inner circumferential surface 1a of the first light guide ring 1, is held by a second holder 4, and the second holder 4 is relatively rotatable. It is attached to the first holding body 2. The optical signal is guided into the first light guide ring 1 from the first connection part 5 of the first holder 2, for example, and is guided from the inner circumferential surface 1a of the first light guide ring 1 to the second light guide ring 1.
It is guided into the second light guide ring 3 via the outer circumferential surface 3a of the light guide ring 3, and further taken out from the second connection part 6 of the second holder 4. Moreover, regardless of the relative positions of the first and second holders 2.4, the inner circumferential surface 1a of the first light guide ring 1 and the outer circumferential surface 3a of the second light guide ring 3 are closely opposed to each other. The optical signal is transmitted through the inner circumferential surface 1a and the outer circumferential surface 3a.
第１保持体２は、基本的に円筒状の第１保持部材７に、
リング状第１ワツシヤ８と、リング状第１押え部材９と
が一体的に装着されて成る。第１保持部材７には、その
一端（第１図の下端）に挿通孔部１０を形成する内向き
鍔１１が一体的に形成され、その一端側から他端側に向
けて順に、挿通孔部１０よりも大径の小径孔部１２と、
小径孔部１２よりも大径の中径孔部１３と、中径孔部１
３よりも大径のねじ孔部１４とが階段状に穿設される。The first holding body 2 basically has a cylindrical first holding member 7.
A ring-shaped first washer 8 and a ring-shaped first pressing member 9 are integrally attached. The first holding member 7 is integrally formed with an inward flange 11 that forms an insertion hole 10 at one end (the lower end in FIG. 1), and the insertion holes a small diameter hole portion 12 having a larger diameter than the portion 10;
A medium-diameter hole 13 having a larger diameter than the small-diameter hole 12 and a medium-diameter hole 1
A screw hole portion 14 having a diameter larger than 3 is bored in a stepped manner.
第１先導リング１は、小径孔部１２の直径と同一の内径
、中径孔部１３の直径に対応する外径、および中径孔部
１３の軸方向長さと同一の、厚さを有しており、小径孔
部１２と中径孔部１３との間の支持段部１５上に載置さ
れる。第１ワツシヤ８は小径孔部１２の直径と同一の内
径およびねじ孔部１４の直径よりもわずかに小さい外径
を有しており、中径孔部１３とねじ孔部１４との間の段
部１６上に、第１光導リング１を押さえるべく配置され
る。また第１押え部材９は小径孔部１２の直径と同一の
内径を有し、しかもその外周面にはねじ孔部１４に螺合
するおねじ１７が刻設される。The first leading ring 1 has an inner diameter that is the same as the diameter of the small-diameter hole 12 , an outer diameter that corresponds to the diameter of the medium-diameter hole 13 , and a thickness that is the same as the axial length of the medium-diameter hole 13 . It is placed on a support step 15 between the small diameter hole 12 and the medium diameter hole 13. The first washer 8 has an inner diameter that is the same as the diameter of the small diameter hole 12 and an outer diameter that is slightly smaller than the diameter of the screw hole 14, and has a step between the medium diameter hole 13 and the screw hole 14. The first light guiding ring 1 is placed on the portion 16 to hold down the first light guide ring 1 . The first holding member 9 has an inner diameter that is the same as the diameter of the small-diameter hole 12, and a male thread 17 that is screwed into the screw hole 14 is formed on its outer peripheral surface.
したがって第１押え部材９をねじ孔部１４に螺合して締
め付けることにより、第１光導リング１は、第１ワツシ
ヤ８および支持段部１５間で挾持され、その状態で第１
光導リング１はその内周面１ａを小径孔部１２、第１ワ
ツシヤ８および第１押え部材９の内面と面一にして露出
させるのみで、他の外面は第１保持体２によって憶われ
る。しかも第１押え部材９の厚さは、ねじ孔部１４に螺
合して締め付けたときに、その軸方向外端面が第１保持
部材７の他端面とほぼ面一となるように設定される。Therefore, by screwing and tightening the first holding member 9 into the screw hole 14, the first light guide ring 1 is held between the first washer 8 and the support step 15, and in this state, the first light guiding ring 1 is
The light guide ring 1 only exposes its inner circumferential surface 1a flush with the inner surfaces of the small diameter hole 12, the first washer 8, and the first presser member 9, and the other outer surfaces are retained by the first holder 2. Moreover, the thickness of the first holding member 9 is set such that when it is screwed into the screw hole 14 and tightened, its axial outer end surface is substantially flush with the other end surface of the first holding member 7. .
第２保持体４は、基本的に円筒状の第２保持部材１８に
、リング状第２ワツシヤ１９と、リング状第２押え部材
２０と、リング状保合部利２１とが一体的に装着されて
成る。第２保持部材１８は、その一端（第１図の下端）
から上端に向けて順に、前記第１保持部材７の挿通孔部
１０よりも小径の第１ねじ部２２と、該挿通孔部１０に
挿通し得る挿通部２３と、挿通部２３よりも大径であり
かつ前記小径孔部１２よりも小径の第２ねじ部２４と、
第２ねじ部２４よりも大径でありかつ前記中径孔部１３
よりも小径の中径部２５と、中径部２５よりも大径であ
りかつ前記小径孔部１２よりもわずかに小径の大径部２
６と、大径部２６よりも大径である外向き鍔２７とが階
段状に形成されて成る。In the second holding body 4, a second ring-shaped washer 19, a second ring-shaped holding member 20, and a ring-shaped retaining part 21 are integrally attached to a basically cylindrical second holding member 18. It consists of being done. The second holding member 18 has one end thereof (lower end in FIG. 1).
In order from the top toward the upper end, a first screw portion 22 having a smaller diameter than the insertion hole 10 of the first holding member 7, an insertion portion 23 that can be inserted into the insertion hole 10, and a diameter larger than the insertion portion 23. and a second threaded portion 24 having a smaller diameter than the small diameter hole portion 12;
It has a larger diameter than the second threaded part 24 and the medium diameter hole part 13.
and a large diameter portion 2 that is larger in diameter than the medium diameter portion 25 and slightly smaller in diameter than the small diameter hole portion 12.
6 and an outward flange 27 having a larger diameter than the large diameter portion 26 are formed in a stepped shape.
挿通部２３の軸方向長さは挿通孔部１０の軸方向長さに
対応して設定され、同様に、第１ねじ部２２゜中径部２
５および大径部２６の各軸方向長さは第１保持部材７の
小径孔部１２、中径孔部１３およびねじ孔部１４の各軸
方向長さにそれぞれ対応して設定される。The axial length of the insertion portion 23 is set corresponding to the axial length of the insertion hole 10, and similarly, the first threaded portion 22° medium diameter portion 2
The axial lengths of the small-diameter hole 12, the medium-diameter hole 13, and the screw hole 14 of the first holding member 7 are set to correspond to the axial lengths of the small-diameter hole 12, the medium-diameter hole 13, and the screw hole 14 of the first holding member 7, respectively.
第２光導リング３は、中径部２５の外径に対応する内径
、大径部２６の外径と同一の外径および中径部２５の軸
方向長さと同一の厚さを有しており、中径部２５と大径
部２６との間の支持段部２８上に配置される。第２ワツ
シヤ１９は、大径部２６の外径と同一の外径および第２
ねじ部２４の外径よりもわずかに大きい内径を有してお
り、中径部２５と第２ねじ部２４との間の段部２９に、
第２光導リング３を押さえるべく当接される。また第２
押え部材２０は、大径部２６の外径と同一の外するめね
じ３０が刻設される。したがって第２押さえ部材２０を
ねじ孔部２４に螺合して締め付けることにより、第２光
導リング３は、第２ワツシヤ１９および支持段部２８間
で挾持され、その状態で、第２光導リング３はその外周
面３ａを大径部２６、第２ワツシヤ１９および第２押さ
え部材２０の外面と面一にして露出させるのみで、他の
外面は第２保持体４によって覆われる。しかも第２ワツ
シヤ１９および第２押さえ部材２０の厚さは、第２押さ
え部材２０を第２ねじ部２４に螺合して締め付けたとき
に、第２ねじ部２４と挿通部２３との間の段部３１と第
２押さえ部材２０の端面とが面一になるように設定され
る。第２保持部材１８は、その挿通部２３を挿通孔部１
０に挿通して第１保持部材７内に嵌入され、挿通孔部１
０から突出した第１ねじ部２２に係合部材２１が螺合さ
れる。これにより、外向き鍔２Ｔが第１保持体２の第１
押さえ部峠係合し、係合部材２１が第１保持体２の内凹
き鍔１１に係合し、第２保持体４と第１保持体２との同
一軸線まわりの相対回転が可能となる。The second light guiding ring 3 has an inner diameter corresponding to the outer diameter of the medium diameter portion 25, an outer diameter that is the same as the outer diameter of the large diameter portion 26, and a thickness that is the same as the axial length of the medium diameter portion 25. , is arranged on the support step 28 between the medium diameter part 25 and the large diameter part 26. The second washer 19 has the same outer diameter as the large diameter portion 26 and a second
It has an inner diameter slightly larger than the outer diameter of the threaded part 24, and a stepped part 29 between the medium diameter part 25 and the second threaded part 24,
It is brought into contact with the second light guide ring 3 to hold it down. Also the second
The holding member 20 is provided with a female thread 30 that is removed and has the same outer diameter as the large diameter portion 26 . Therefore, by screwing and tightening the second holding member 20 into the screw hole 24, the second light guide ring 3 is held between the second washer 19 and the support step 28, and in this state, the second light guide ring 3 The outer circumferential surface 3a thereof is exposed flush with the outer surfaces of the large diameter portion 26, the second washer 19, and the second pressing member 20, and the other outer surfaces are covered by the second holder 4. In addition, the thickness of the second washer 19 and the second holding member 20 is such that when the second holding member 20 is screwed onto the second threaded portion 24 and tightened, the thickness between the second threaded portion 24 and the insertion portion 23 is The stepped portion 31 and the end surface of the second pressing member 20 are set to be flush with each other. The second holding member 18 connects its insertion portion 23 to the insertion hole portion 1.
0 and is fitted into the first holding member 7, and the insertion hole 1 is inserted into the first holding member 7.
The engaging member 21 is screwed into the first threaded portion 22 protruding from the 0 portion. This allows the outward facing collar 2T to move to the first position of the first holding body 2.
The holding part is engaged, the engaging member 21 engages with the inner concave collar 11 of the first holding body 2, and relative rotation of the second holding body 4 and the first holding body 2 about the same axis is possible. Become.
第２図、第３図および第４図におし・て、第１光導リン
グ１には、その周方向−個所に第１人、出力端３２が設
けられる。すなわち、第１光導リング１は、はぼ３６０
度の範囲にわたって円弧状に形成されたリング部３３と
、該リング部３３０周方向両端から軸方向−刃側に向け
て一曲した一対の彎曲部３４と、両前曲部３４が共通に
連結される棒状部３５とが一体的に形成されて成り、棒
状部３５の端部には第１人、出力端３２が形成される。2, 3 and 4, the first light guide ring 1 is provided with a first output end 32 at a position in the circumferential direction thereof. That is, the first light guide ring 1 has a diameter of 360
A ring portion 33 formed in an arc shape over a degree range, a pair of curved portions 34 curved from both ends of the ring portion 330 in the axial direction toward the blade side, and both front curved portions 34 are commonly connected. A first output end 32 is formed at the end of the rod-shaped portion 35.
またリング部３３の外周面は半径方向外方に向かうにつ
れて相互に近接する方向に傾斜した一対のテーパ面４ｂ
、４６より構成され、それらのテーパ面４５．４６のな
す角度はたとえば９０度に設定される。しかもリング部
３３は、その内周面１ｔを形成する内周円と、両テーパ
面４５．４６の稜線である外周円との中心がずれており
、前記内周円の中心４７が第１保持体２の軸線に一致し
ているのに対し、前記外周円の中心４８は前記中心４７
から偏心せしめられる。したがって第１光導リング１の
幅は周方向に沿う成る位置から両側に向けて次第に拡大
されており、前記第１人、出力端３２は最も幅の広い部
分に設けられる。このような第１光導リング１を保持す
るために、第１保持部月７の中径孔部１３は、他の挿通
孔部１ｑ小径孔部１２およびねじ孔部１４の中心すなわ
ち前記中心４７から偏心せしめられている。Further, the outer circumferential surface of the ring portion 33 has a pair of tapered surfaces 4b that are inclined toward each other as they go radially outward.
, 46, and the angle formed by the tapered surfaces 45 and 46 is set to, for example, 90 degrees. Moreover, in the ring portion 33, the centers of the inner circumferential circle forming the inner circumferential surface 1t and the outer circumferential circle, which is the ridgeline of both tapered surfaces 45 and 46, are shifted, and the center 47 of the inner circumferential circle is located at the first holding point. The center 48 of the outer circumferential circle coincides with the axis of the body 2, while the center 48 of the outer circumferential circle coincides with the center 47 of the body 2.
It makes you eccentric. Therefore, the width of the first light guide ring 1 is gradually expanded from a position along the circumferential direction toward both sides, and the first output end 32 is provided at the widest part. In order to hold such a first light guide ring 1, the medium diameter hole 13 of the first holding part 7 is located from the center of the other insertion hole 1q, the small diameter hole 12 and the screw hole 14, that is, from the center 47. Being forced to be eccentric.
第２図、第３図および第５図において、第２光導リング
３は、前述の第１光導リング１と同様に、リング部３７
と、一対の彎曲部３８と、棒状部３９とが一体重に形成
されて成り、リング部３７の内周面は半径方向内方に向
かうにつれて相互に近接する方向に傾斜した一対のテー
パ面４９．５０より構成され、両テーパ面４９．５０の
なす角度はたとえば９０度に設定される。また、第２光
導リング３の外周面３ａを形成する外周円と、両テーパ
面４９．５０の稜線である内周円との中心は、ずれてお
り、第２保持体４に保持されたときに、前記外周円の中
心は前記中心４７に一致され、前記内周円の中心は前記
中心４８に一致される。また第２光導リング３を保持す
るために、第２保持部材１８の中径部２５は、他の第１
ねじ部２２、挿通部２３、大径部２６および外向き鍔２
７に対して偏心せしめられる。In FIGS. 2, 3, and 5, the second light guiding ring 3 has a ring portion 37 similar to the first light guiding ring 1 described above.
, a pair of curved portions 38 and a rod-shaped portion 39 are formed in one piece, and the inner circumferential surface of the ring portion 37 has a pair of tapered surfaces 49 that are inclined toward each other as they move radially inward. .50, and the angle formed by both tapered surfaces 49.50 is set to, for example, 90 degrees. Furthermore, the centers of the outer circumferential circle forming the outer circumferential surface 3a of the second light guiding ring 3 and the inner circumferential circle which are the ridge lines of both tapered surfaces 49,50 are shifted, and when held by the second holding body 4, The center of the outer circumferential circle is aligned with the center 47, and the center of the inner circumferential circle is aligned with the center 48. Further, in order to hold the second light guide ring 3, the middle diameter portion 25 of the second holding member 18 is connected to the other first light guide ring 3.
Threaded portion 22, insertion portion 23, large diameter portion 26, and outward facing collar 2
It is eccentric with respect to 7.
このような第１および第２光導リング１．３を保持する
ために、第１保持部材７の支持段部１５および第２保持
部材１Ｂの支持段部２Ｂは、それらの一部が切欠かれ、
その切欠き部（図示せず）に各光導リング１，３の棒状
部３５．３９がそれぞれ配置される。In order to hold such first and second light guide rings 1.3, the support step portion 15 of the first holding member 7 and the support step portion 2B of the second holding member 1B are partially cut out.
The rod-shaped portions 35 and 39 of each of the light guide rings 1 and 3 are arranged in the notches (not shown), respectively.
第６図において、第１接続部５は、短管４０の一端にフ
ランジ４１を設けて成り、第１光導リング１の第１人、
出力端３２に対応する位置で第１保持部材７の端面にね
じ部拐４２により固着される。第１保持部材７には、前
記短管４０内に同心に連通する透孔４３が穿設されてお
り、第１光導リング１はその第１人、出力端３２を透孔
４３内に突入して第１保持体４に保持される。また第１
保持部材７および第１接続部５間にはレンズ４４が介装
される。また第１接続部５の短管４０には、光ファイバ
（図示せず）が接続される。In FIG. 6, the first connecting portion 5 includes a flange 41 provided at one end of a short pipe 40, and includes a first member of the first light guiding ring 1,
It is fixed to the end surface of the first holding member 7 at a position corresponding to the output end 32 by a threaded portion 42 . The first holding member 7 has a through hole 43 that communicates concentrically with the short tube 40, and the first light guide ring 1 has its first output end 32 inserted into the through hole 43. and is held by the first holding body 4. Also the first
A lens 44 is interposed between the holding member 7 and the first connecting portion 5 . Further, an optical fiber (not shown) is connected to the short tube 40 of the first connecting portion 5.
第２保持体４の第２接続部６も、上記第１接続部５と同
様の構成を有して、第２光導リング３の第２人、出力端
３６に対応して第２保持部相１８に固着される。The second connecting part 6 of the second holding body 4 also has the same configuration as the first connecting part 5, and the second holding part phase corresponds to the second output end 36 of the second light guide ring 3. 18.
次にこの実施例の作用について説明すると、たとえは第
１接続部５から第１人、出力端３２に入力された光信号
は、第１光導リング１の棒状部３５から両前曲部３４を
経て両側のリング部３３に導かれ、リング部３３の外面
で反射しながら伝搬される。この際前記外面への入射角
が臨界角より小さくなると、光信号は外部に放出される
。ところが第１光導リング１の外周面はテーパ面４５．
４６より構成されており、両テーパ面４５．４６は鏡の
作用を果すので、第１光導リング１の外周から外部に放
出される光電は低減される。しかも第１光導リング１の
外周円と内周円とは偏心しているので、第７図で示すよ
うに、光信号は第１光導リング１の幅の狭い部分に向け
て内周面１ａへの入射角を次第に小さくして収束しなが
ら伝搬し、内周面１ａに臨界角以下で入射した光信号は
、外周面３ａを経て第２光導リング３内に導かれる。こ
の第２光導リング３内においても、第１光導リング１と
同様に、テーパ面４９．５０が鏡の作用を果し、光信号
が効率良く第２人、出力端３６に導かれ、第２人、出力
端３６がら第２接続部６を経て取り出される。Next, to explain the operation of this embodiment, for example, an optical signal inputted from the first connection part 5 to the output end 32 is transmitted from the rod-shaped part 35 of the first light guide ring 1 to both front curved parts 34. The light is then guided to the ring portions 33 on both sides, and is propagated while being reflected on the outer surface of the ring portions 33. At this time, when the angle of incidence on the outer surface becomes smaller than the critical angle, the optical signal is emitted to the outside. However, the outer peripheral surface of the first light guide ring 1 has a tapered surface 45.
46, and since both tapered surfaces 45 and 46 function as mirrors, the photoelectricity emitted from the outer periphery of the first light guiding ring 1 to the outside is reduced. Moreover, since the outer circumferential circle and the inner circumferential circle of the first light guide ring 1 are eccentric, the optical signal is directed toward the narrow part of the first light guide ring 1 and toward the inner circumferential surface 1a, as shown in FIG. The optical signal propagates while converging while gradually decreasing the incident angle, and the optical signal that is incident on the inner circumferential surface 1a at a critical angle or less is guided into the second light guiding ring 3 via the outer circumferential surface 3a. In this second light guide ring 3, similarly to the first light guide ring 1, the tapered surfaces 49 and 50 function as mirrors, so that the optical signal is efficiently guided to the second person and the output end 36, and The person is removed from the output end 36 via the second connection 6.
しかも、このような光信号の伝送は、第１光導リング１
の内周面１ａと、第２光導リング３の外周面３ａとが両
光導リング１，３の相対位置に拘らず、宮に近接して対
向しているので、両保持体２．４の相対位置の如何に拘
らず達成され金。したがって、第１保持体２および第２
保持体愕を、固定側および可動側のいずれがとし、固定
（１ｑｌｌと可動側との間の光信号の伝送を円滑に行な
うことができる。なお、上述の実施νりでは、第１人、
：出力端３２を光信号の入力端とし、第２人、出力端３
６を光信号の出力端として説明したが、それとは逆であ
ってもよい。Moreover, the transmission of such optical signals is carried out through the first optical guide ring 1.
Since the inner circumferential surface 1a of the second light guide ring 3 and the outer circumferential surface 3a of the second light guide ring 3 are close to each other and face each other regardless of the relative positions of the two light guide rings 1 and 3, the relative position of the two holders 2.4 is Money is achieved regardless of position. Therefore, the first holding body 2 and the second
The holding body can be moved by either the fixed side or the movable side, and optical signals can be smoothly transmitted between the fixed (1qll) and the movable side.
: The output end 32 is the input end of the optical signal, the second person, the output end 3
Although 6 is described as an output end of an optical signal, it may be the opposite.
以上のように本発明によれば、第１光導リングと第２光
導リングとが、それらの内周面と外周面とを近接、対向
させて配置され、第１光導リングを保持する第１保持体
と、第２光導リングを保持する第２保持体とが相対回転
自在に配設されるので、固定側と可動側との光信号の伝
送が確実に行なわれ、しかも第１光導リングおよび第２
光導リングは摺接しないので、両者の摩耗による寿命低
下が防止される。さらに、両光導リングは偏心して形成
されるので、各リング内で光信号を収束させて伝搬させ
ることができ、効率の良い光伝送を実現することができ
る。As described above, according to the present invention, the first light guide ring and the second light guide ring are arranged with their inner circumferential surfaces and outer circumferential surfaces close to each other and facing each other, and the first light guide ring holds the first light guide ring. Since the body and the second holder holding the second light guide ring are arranged so as to be relatively rotatable, optical signals can be reliably transmitted between the fixed side and the movable side. 2
Since the light guide ring does not come into sliding contact, shortening of the lifespan due to wear between the two is prevented. Further, since both optical guide rings are formed eccentrically, optical signals can be converged and propagated within each ring, and efficient optical transmission can be realized.
図面は本発明の一実施例を示すもので、第１図は全体縦
断面図、第２図は第１および第２光導リングの配置を示
す平面図、第３図は第２図のｍ−断面図、第５図は第２
図の■−Ｖ線拡線断大断面図６図は第１接続部の縦断面
図、第７図は光信号の伝搬状況を示す図である。
１・・・第１光導リング、１ａ・・・内周面、２・・・
第１保持体、３・・・第２光導リング、３ａ・・・外周
面、４・・第２保持体、５・・・第１接続部、６・・・
第２接続部、３２・・第１人、出力端、３６・・・第２
人、出力端
特許出願人 東洋電装株式会社
第１図 １
↓
第２図
第６図The drawings show one embodiment of the present invention, and FIG. 1 is an overall vertical sectional view, FIG. 2 is a plan view showing the arrangement of the first and second light guide rings, and FIG. Cross-sectional view, Figure 5 is the second
FIG. 6 is a vertical cross-sectional view of the first connection portion, and FIG. 7 is a diagram showing the propagation state of the optical signal. DESCRIPTION OF SYMBOLS 1... First light guide ring, 1a... Inner peripheral surface, 2...
First holder, 3... Second light guide ring, 3a... Outer peripheral surface, 4... Second holder, 5... First connection part, 6...
2nd connection part, 32...1st person, output end, 36...2nd person
Person, output end patent applicant Toyo Denso Co., Ltd. Figure 1 1 ↓ Figure 2 Figure 6
Claims (1)
人、出力のための第１人、出力端を有する第１光導リン
グと；第１光導リングを固定的に保持し、前記第１人、
出力端に連なる第１接続部を有する第１保持体と；第１
光専リングの内周面に近接して対向する外周面を有しか
つ外周と内周とが偏心して形成され、周方向−個所に光
信号人、出力のための第１人、出力端を有する第２光導
リングと：第２人、出力端に連なる第２接続部を有して
第２光導リングを固定的に保持し、第１保持体との相対
回転自在な第２保持体と；を含むことを特徴とする光ス
リラブリング装置。a first light guide ring having an inner periphery and an outer periphery eccentrically formed and having a light signal head, a first light guide for output, and an output end at a circumferential location; holding the first light guide ring fixedly; 1 person,
a first holder having a first connection portion continuous to the output end;
It has an outer circumferential surface close to and opposite to the inner circumferential surface of the optical-only ring, and the outer circumference and the inner circumference are formed eccentrically, and an optical signal person, a first person for output, and an output end are provided at positions in the circumferential direction. a second light guide ring having: a second person, a second holder having a second connecting portion connected to the output end, fixedly holding the second light guide ring, and rotatable relative to the first holder; An optical sliver ring device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58187794A JPS6079304A (en) | 1983-10-07 | 1983-10-07 | Optical slip ring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58187794A JPS6079304A (en) | 1983-10-07 | 1983-10-07 | Optical slip ring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6079304A true JPS6079304A (en) | 1985-05-07 |
| JPH0311441B2 JPH0311441B2 (en) | 1991-02-18 |
Family
ID=16212339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58187794A Granted JPS6079304A (en) | 1983-10-07 | 1983-10-07 | Optical slip ring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079304A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62257606A (en) * | 1986-04-30 | 1987-11-10 | Sony Corp | Optical rotary coupler |
| US4934783A (en) * | 1989-03-08 | 1990-06-19 | Honeywell Inc. | Off-axis fiber optic rotary joint |
| US6849152B2 (en) | 1992-12-28 | 2005-02-01 | Applied Materials, Inc. | In-situ real-time monitoring technique and apparatus for endpoint detection of thin films during chemical/mechanical polishing planarization |
| US7037403B1 (en) | 1992-12-28 | 2006-05-02 | Applied Materials Inc. | In-situ real-time monitoring technique and apparatus for detection of thin films during chemical/mechanical polishing planarization |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56133706A (en) * | 1980-03-25 | 1981-10-20 | Furukawa Electric Co Ltd:The | Multichannel optical connector between rotator and nonrotating body or the like |
| JPS56135345A (en) * | 1980-03-25 | 1981-10-22 | Nissan Motor Co Ltd | Optical signal transmitting device |
| JPS571742U (en) * | 1980-06-05 | 1982-01-06 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54139156A (en) * | 1978-04-20 | 1979-10-29 | Haruo Kudou | Ice plant |
-
1983
- 1983-10-07 JP JP58187794A patent/JPS6079304A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56133706A (en) * | 1980-03-25 | 1981-10-20 | Furukawa Electric Co Ltd:The | Multichannel optical connector between rotator and nonrotating body or the like |
| JPS56135345A (en) * | 1980-03-25 | 1981-10-22 | Nissan Motor Co Ltd | Optical signal transmitting device |
| JPS571742U (en) * | 1980-06-05 | 1982-01-06 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62257606A (en) * | 1986-04-30 | 1987-11-10 | Sony Corp | Optical rotary coupler |
| US4934783A (en) * | 1989-03-08 | 1990-06-19 | Honeywell Inc. | Off-axis fiber optic rotary joint |
| US6849152B2 (en) | 1992-12-28 | 2005-02-01 | Applied Materials, Inc. | In-situ real-time monitoring technique and apparatus for endpoint detection of thin films during chemical/mechanical polishing planarization |
| US7024063B2 (en) | 1992-12-28 | 2006-04-04 | Applied Materials Inc. | In-situ real-time monitoring technique and apparatus for endpoint detection of thin films during chemical/mechanical polishing planarization |
| US7037403B1 (en) | 1992-12-28 | 2006-05-02 | Applied Materials Inc. | In-situ real-time monitoring technique and apparatus for detection of thin films during chemical/mechanical polishing planarization |
| US7569119B2 (en) | 1992-12-28 | 2009-08-04 | Applied Materials, Inc. | In-situ real-time monitoring technique and apparatus for detection of thin films during chemical/mechanical polishing planarization |
| US7582183B2 (en) | 1992-12-28 | 2009-09-01 | Applied Materials, Inc. | Apparatus for detection of thin films during chemical/mechanical polishing planarization |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0311441B2 (en) | 1991-02-18 |
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