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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