JPS6067909A - Optical rotary connector device - Google Patents
Optical rotary connector deviceInfo
- Publication number
- JPS6067909A JPS6067909A JP17666183A JP17666183A JPS6067909A JP S6067909 A JPS6067909 A JP S6067909A JP 17666183 A JP17666183 A JP 17666183A JP 17666183 A JP17666183 A JP 17666183A JP S6067909 A JPS6067909 A JP S6067909A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- connector device
- drum
- rotating body
- concave mirrors
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 44
- 239000000835 fiber Substances 0.000 claims abstract description 34
- 239000013307 optical fiber Substances 0.000 claims description 29
- 239000000284 extract Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
-
- 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
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- 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
- G02B6/40—Mechanical coupling means having fibre bundle mating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の°技術分野）
本発明は、回転体より繰り出され又は引き取られる多心
光フアイバケーブルから光信号を取り出す光ロータリ−
、コネクタ装置に関する。Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to an optical rotary device that extracts optical signals from a multi-core optical fiber cable that is paid out or taken out from a rotating body.
, relates to a connector device.
（発明の技術的背景）
近年、エレベータ、トンネル掘削機、海底探査機などの
回転体を備える機器の画像モニタリング等に光フアイバ
ケーブルが利用されてきている。(Technical Background of the Invention) In recent years, optical fiber cables have been used for image monitoring of equipment including rotating bodies, such as elevators, tunnel excavators, and submarine exploration vehicles.
即ち、ドラム等の回転体から光ファイ／九ケーブルを繰
り出し又は引き取る操作を繰り返しつつその接続されて
いるモニタカメラにてエレベータ内を監視し若しくはト
ンネル内や海底内を探査することが行われている。That is, while repeating the operation of feeding out or pulling out the optical fiber/9 cable from a rotating body such as a drum, the inside of the elevator is monitored using a monitor camera connected to the cable, or the inside of a tunnel or the seabed is explored. .
（背景技術の問題点）
しかし、従来は一木のファイバ心線相互を接続するだけ
の光ロータリ−コネクタしか存在せず、このため、回転
体からはその回転軸上の両端よりそれぞれ光信号を連続
して取り出すことができるだけであった。従って、送・
受できる情報量が限られてしまい、必ずしも満足できる
画像モニタリングを行うことができなかった。(Problems in the Background Art) However, conventionally, only optical rotary connectors that connect one fiber core wire to another exist, and for this reason, optical signals are transmitted from a rotating body from both ends of the rotating shaft. It was only possible to take them out consecutively. Therefore, sending
Since the amount of information that can be received is limited, it is not always possible to perform satisfactory image monitoring.
（発明の目的）
本発明の目的は、回転体より繰り出され又は引き取られ
ている多心光フアイバケーブルの各ファイバ心線から光
信号を同時かつ連続的に取り出すことができる光ロータ
リ−コネクタ装置を提供することにある。(Object of the Invention) The object of the present invention is to provide an optical rotary connector device that can simultaneously and continuously extract optical signals from each fiber core of a multi-core optical fiber cable being paid out or taken out from a rotating body. It is about providing.
（発明の概要）
本発明は、回転体側の光信号を取り出すための多心光フ
アイバケーブルにおける各ファイバ心線を、前記回転体
と共にその回転軸を一致させて回転する回転板に取付け
、各ファイバ心線から前記回転軸と平行に出力されるそ
れぞれの平行信号光を、集束部材にて各焦点位置に集束
すると共に該容態点位置に集束したそれぞれの光信号を
光ガイド部材により出力側光ファイバに入力し、これに
より前記回転体から光信号を連続的に外部へ取り出すこ
とを特徴とする。(Summary of the Invention) The present invention provides for attaching each fiber core wire in a multi-core optical fiber cable for extracting an optical signal from a rotating body to a rotating plate that rotates with its rotation axis aligned with the rotating body, and The respective parallel signal lights outputted from the core wire parallel to the rotation axis are focused at each focal point position by a focusing member, and the respective optical signals focused at the focal point position are transferred to the output side optical fiber by a light guide member. The optical signal is inputted into the rotating body, thereby continuously extracting the optical signal from the rotating body to the outside.
（発明の実施例） 以下、本発明の実施例を図面を参照して説明する。(Example of the invention) Embodiments of the present invention will be described below with reference to the drawings.
第１図には海底探査機などの回転体として用いられるド
ラムｌへの本発明の光ロータリ−コネクタ装置ＩＯの一
使用態様が示されている。即ち、ドラム１は軸受４を介
して回動自在に支持され、その胴部２に多心光フアイバ
ケーブル５が巻伺けられている。一方、本発明の光ロー
タリ−コネクタ装置ｌＯは、モニタ部や制御部などに接
続されている光信号取出用光フアイバケーブル６の各フ
ァイバ心線６ａ〜６Ｃが取付けられ、ドラムｌの一方の
鍔部３近傍に支持部材７を介して固定的に配されている
。そして、このコネクタ装置ｌＯの後述する回転板１２
に多心光フアイバケーブル５の第１乃至第３のファイバ
心線５ａ〜５Ｃが取付けられている。FIG. 1 shows one mode of use of the optical rotary connector device IO of the present invention to a drum l used as a rotating body of an undersea probe or the like. That is, the drum 1 is rotatably supported via a bearing 4, and a multi-core optical fiber cable 5 is wound around the body 2 of the drum 1. On the other hand, in the optical rotary connector device lO of the present invention, each fiber core wire 6a to 6C of an optical fiber cable 6 for extracting an optical signal connected to a monitor unit, a control unit, etc. is attached to one flange of the drum l. It is fixedly arranged near the section 3 via a support member 7. Then, a rotary plate 12 to be described later of this connector device IO
The first to third fiber cores 5a to 5C of the multi-core optical fiber cable 5 are attached to.
本発明の光ロータリ−コネクタ装置１０は、第２図に示
すように、支持部材７（第１図参照）に固定的に支持さ
れる枠体１１を備える。この枠体１１の一側には上述し
た回転板１２が配され、この回転板１２はドラムｌの鍔
部３にドラムｌの回転軸を中心として回転するように同
軸的に取付けられている（第１図参照）０回転板１２の
枠体ｌｌ内に突出する肉厚部１２ａはベアリング１４を
介して枠体１１の一側に回動自在に支持され、この肉厚
部１２ａにはその厚さ方向に貫通する複数の光信号通過
用の孔１５が回転板１２の径方向に間隔をおいて設けら
れている。そして、番孔１５には、それぞれコネクタ１
３が嵌入されて取付けられ、各コネクタ１３には前記し
た第１乃至第３の各ファイバ心線５ａ〜５ｃがそれぞれ
光接続されている。As shown in FIG. 2, the optical rotary connector device 10 of the present invention includes a frame 11 fixedly supported by the support member 7 (see FIG. 1). The above-mentioned rotating plate 12 is arranged on one side of this frame 11, and this rotating plate 12 is coaxially attached to the flange 3 of the drum 1 so as to rotate around the rotation axis of the drum 1 ( (See FIG. 1) A thick portion 12a of the zero-rotation plate 12 protruding into the frame ll is rotatably supported on one side of the frame 11 via a bearing 14. A plurality of holes 15 for passing optical signals passing through the rotating plate 12 are provided at intervals in the radial direction of the rotary plate 12 . Then, each hole 15 has a connector 1.
3 is fitted and attached, and each of the first to third fiber core wires 5a to 5c described above is optically connected to each connector 13, respectively.
枠体１１の他側には凹面鏡組合体１６が支持部材１７を
介して固定的に支持されている。この組合体１６は、径
の異なる複数の凹面鏡１８〜２０から成り、小径の凹面
鏡１８は前記ファイバ心線５ａと対向した位置にその焦
点を枠体ｌｉの下方で結ぶように傾斜して配されている
。この凹面鏡１８の焦点を結ぶ位置には集束性ロッドレ
ンズから成る光ガイド部材２１が配設されている。凹面
鏡１８の背面に位置する径の大きな凹面鏡１９は、ファ
イバ心線５ｂからの光信号を受けるべくその対向した位
置に傾斜して配され、前記光ガイド部材２１近傍でその
焦点を結んでいる。この四面−鏡１９の焦点を結ぶ位置
には集束性ロッドレンズから成る他の光ガイド部材２２
が配設されている。凹面鏡１９の背面に位置する大径の
凹面鏡２０は、ファイバ心線５Ｃからの光信号を受ける
べくその対向した位置に傾斜して配され、光ガイド部材
２２の近傍でその焦点を結んでいる。そして。A concave mirror assembly 16 is fixedly supported on the other side of the frame 11 via a support member 17. This assembly 16 is made up of a plurality of concave mirrors 18 to 20 having different diameters, and the small diameter concave mirror 18 is arranged at a position facing the fiber core 5a at an angle so that its focal point is connected below the frame li. ing. A light guide member 21 made of a focusing rod lens is disposed at a position where the concave mirror 18 is focused. A large-diameter concave mirror 19 located on the back side of the concave mirror 18 is arranged at an angle opposite to the optical fiber 5b to receive the optical signal from the optical fiber 5b, and is focused near the optical guide member 21. At the position where this four-sided mirror 19 is focused, another light guide member 22 consisting of a focusing rod lens is provided.
is installed. A large-diameter concave mirror 20 located on the back side of the concave mirror 19 is tilted at an opposite position to receive the optical signal from the fiber core 5C, and is focused near the light guide member 22. and.
この凹面鏡１９の焦点を結ぶ位置には集束性ロッドレン
ズから成る更に他の光ガイド部材２３が配設されている
。Further, another light guide member 23 made of a converging rod lens is provided at a position where the concave mirror 19 is focused.
枠体１１の下部には、厚さ方向に貫通する複数の受光用
孔２４が設けられ、各受光用孔２４にはコネクタ２５が
嵌入されている。そして、各コネクタ２５には、光信号
取出用光フアイバケーブル６の各ファイバ心線６ａ〜６
Ｃが出力側で光接続され、又前記各光ガイド部材２１〜
２３が入力側で光ファイバ２６を介して光接続されてい
る。A plurality of light receiving holes 24 penetrating in the thickness direction are provided in the lower part of the frame 11, and a connector 25 is fitted into each light receiving hole 24. Each connector 25 is connected to each fiber core wire 6a to 6 of the optical fiber cable 6 for taking out an optical signal.
C is optically connected on the output side, and each of the light guide members 21 to
23 is optically connected via an optical fiber 26 on the input side.
次に、本発明の光ロータリ−コネクタ装置ｌＯの動作を
説明する。ドラムｌの回転で該ドラムｌから多心光フア
イバケーブル５が繰り出され又は引き取られ各ファイバ
心線５ａ〜５Ｃがドラムｌと共に回転すると、回転板１
２がドラム１と同期して同一方向に同一速度にて回転す
るので、前記各ファイバ心線５ａ〜５ｃに応力が加わる
ことがない。そして、ドラムｌの回転中において、第１
のファイバ心線５ａから出力された平行信号光は、小径
の凹面鏡１８により反射されて光ガイド部材２１に集束
され、光ファイバ２６によりコネクタ２５に伝送される
ので、該コネクタ２５に接続されている光信号取出用光
フアイバケーブル６のファイバ心線６ａによりドラムｌ
外に取り出される。Next, the operation of the optical rotary connector device IO of the present invention will be explained. When the multi-core optical fiber cable 5 is paid out or taken out from the drum 1 by the rotation of the drum 1, and each of the fiber cores 5a to 5C rotates together with the drum 1, the rotating plate 1
2 rotates in the same direction and at the same speed in synchronization with the drum 1, no stress is applied to each of the fiber cores 5a to 5c. Then, while the drum l is rotating, the first
The parallel signal light output from the fiber core 5a is reflected by the small diameter concave mirror 18, focused on the light guide member 21, and transmitted to the connector 25 through the optical fiber 26, so that it is connected to the connector 25. The fiber core 6a of the optical fiber cable 6 for extracting optical signals connects the drum l.
taken outside.
また、ドラム１の回転中北おいて、第２のファイバ心線
５ｂから出力された平行信号光は、上記凹面鏡１８の背
面に位置する凹面鏡１９に到達し、この凹面鏡１９にて
反射されて光ガイド部材２２に入力される。この結果、
この光信号は光ファイバ２６に導かれてコネクタ２５に
入力され、ファイバ心線６ｂによりドラムｌ外に取り出
される更に、第３のファイバ心線５Ｃから出力された平
行信号光は、上記凹面鏡１９の背面に位置する大径の凹
面鏡２０に到達し、この凹面鏡２０にて反射されて光ガ
イド部材２３に入力され、同様に光ファイバ２６を介し
てコネクタ２５に更に入力され、ファイバ心線６Ｃによ
りドラムｌ外に取り出される。Further, in the north direction of the rotation of the drum 1, the parallel signal light outputted from the second fiber core 5b reaches the concave mirror 19 located on the back side of the concave mirror 18, and is reflected by this concave mirror 19 to become a light beam. It is input to the guide member 22. As a result,
This optical signal is guided to the optical fiber 26, inputted to the connector 25, and taken out to the outside of the drum l by the fiber core 6b.Furthermore, the parallel signal light output from the third fiber core 5C is transmitted to the concave mirror 19. It reaches the large-diameter concave mirror 20 located on the back side, is reflected by this concave mirror 20, is input to the light guide member 23, is further input to the connector 25 via the optical fiber 26, and is connected to the drum by the fiber core 6C. It is taken out.
このようにして第１乃至第３のファイバ心線５ａ〜５Ｃ
から取り出された各信号光は、光信号取出用光フアイバ
ケーブル６によりモニタ装置や制御部に各種の情報信号
として連続的に送られる。In this way, the first to third fiber cores 5a to 5C
Each signal light extracted from the optical fiber cable 6 is continuously sent to a monitor device and a control unit as various information signals through an optical fiber cable 6 for extracting optical signals.
尚、本発明のコネクタ装置１０のドラムｌへの取引ＩＥ
様としては、枠体１１を鍔部３に軸受を介して固定的に
支持し、回転板１２をドラムｌ内にそれぞれの回転軸を
一致させて位置させ、ドラムｌ内で回転板１２に各ファ
イバ心線５ａ〜５Ｃを取付けるようにしてもよい。Incidentally, the transaction IE of the connector device 10 of the present invention to the drum l
In this case, the frame 11 is fixedly supported by the flange 3 via a bearing, the rotary plates 12 are positioned in the drum l with their rotation axes aligned, and the rotary plates 12 are attached to each other in the drum l. Fiber core wires 5a to 5C may be attached.
第３図には本発明の他の実施例が示されている。この実
施例では、枠体ｉｉの回転板１２近傍位置にフレネルレ
ンズ２７が固定的に配設されている。このフレネルレン
ズ２７は、径方向に向かって焦点距離の相違する環状の
レンズ部２７ａ〜２７Ｃから成る。フレネルレンズ２７
の後方には、レンズ部２７ａ〜２７ｃの各焦点を結ぶ位
置にそれぞれ集束性ロッドレンズから成る光ガイド部材
２１〜２３が配設され、これら光ガイド部材２１〜２３
は支持体２８に取付けられている。そして、各光ガイド
部材２１〜２３は、光ファイバ２６を介して各コネクタ
２５に光接続されている。Another embodiment of the invention is shown in FIG. In this embodiment, a Fresnel lens 27 is fixedly disposed near the rotary plate 12 of the frame ii. This Fresnel lens 27 is composed of annular lens portions 27a to 27C having different focal lengths in the radial direction. fresnel lens 27
At the rear of the lens portions 27a to 27c, light guide members 21 to 23 each consisting of a convergent rod lens are disposed at positions that connect the respective focal points of the lens portions 27a to 27c, and these light guide members 21 to 23
is attached to a support 28. Each of the light guide members 21 to 23 is optically connected to each connector 25 via an optical fiber 26.
従って、各ファイバ心線５ａ〜５Ｃから出力された平行
信号光は、フレネルレンズ２７の各レンズ部２７ａ〜２
７ｃにより屈折されて各党ガイド部材２１〜２３に集束
するので、上述したと同様に光信号取出用光フアイバケ
ーブル６の各ファイバ心線６ａ〜６Ｃによりドラム１外
に取り出される。Therefore, the parallel signal light output from each fiber core wire 5a to 5C is transmitted to each lens portion 27a to 2 of Fresnel lens 27.
7c and converges on each of the guide members 21 to 23, and is taken out of the drum 1 by each of the fiber cores 6a to 6C of the optical fiber cable 6 for taking out the optical signal in the same manner as described above.
上記第３図の実施例において、焦点距離が径方向に段階
的に変化する通常の凸レンズを用いても同様に光信号を
ドラムｌ外に取り出すことができる。In the embodiment shown in FIG. 3, the optical signal can be extracted to the outside of the drum l in the same manner even if a normal convex lens whose focal length changes stepwise in the radial direction is used.
（発明の効果）
本発明によれば、回転体と同期し、かつその回転軸を一
致させて回転する回転板に光信号を取り出すための多心
光フアイバケーブルの各ファイバ心線を取付け、各ファ
イバ心線から前記回転軸と平行に出力されてくる各信号
光を凹面鏡組合体、フレネルレンズ等の集束部材により
各焦点位置に導き、この導いた光信号を光ガイド部材に
て回転体の外部に取り出すようにしたことで、多心光フ
アイバケーブルが回転体から繰り出され又は引き取られ
ている間でもその各ファイバ心線から同時かつ連続的に
光信号をモニタ装置等に送ることができる。従って１回
転体を有する機器を動作させたまま多量の情報を得るこ
とが可能な光ロータリ−コネクタ装置を提供することが
できる。(Effects of the Invention) According to the present invention, each fiber core of a multi-core optical fiber cable for extracting optical signals is attached to a rotary plate that rotates in synchronization with a rotating body and with its rotation axis coincident. Each signal light outputted from the fiber core parallel to the rotation axis is guided to each focal point by a focusing member such as a concave mirror assembly or a Fresnel lens, and the guided optical signal is directed to the outside of the rotating body by a light guide member. By taking out the multi-core optical fiber cable simultaneously, even while the multi-core optical fiber cable is being unwound or taken out from the rotating body, optical signals can be simultaneously and continuously sent from each of the fiber cores to a monitor device or the like. Therefore, it is possible to provide an optical rotary connector device that can obtain a large amount of information while operating a device having a single rotating body.
第１図は本発明に係る光ロータリ−コネクタ装置のドラ
ムへの一取付態様を示す断面図、第２図は本発明に係る
光ロータリ−コネクタ装置の断面図、第３図は本発明の
他の実施例に係る断面図である。
１−−−−−−−ドラム、
３−−−−−−一鍔部、
４］−−−−−一軸受、
５−−−一−−−多心光ファイバケーブル、５＆〜５Ｃ
−ｍ−ファイバ心線、
６ａ〜６ｃ−ｍ−ファイバ心線、
ｉ ｏ−−−−−一光ロータリーコネクタ装置、１１−
−−一−−枠体、
１２−−−−−一回転板、
１３．２５−ｍ−コネクタ、
１６−−−−−−凹面鏡組合体、
１７−−−−−−支持蔀材、
１８〜２０−ｍ＝凹面鏡。
２１〜２３−ｍ−光ガイド部材、
２７−−−−−−フレネルレンズ。FIG. 1 is a cross-sectional view showing one embodiment of an optical rotary connector device according to the present invention attached to a drum, FIG. 2 is a cross-sectional view of an optical rotary connector device according to the present invention, and FIG. It is a sectional view concerning an example of. 1--------Drum, 3--------One collar, 4]----One bearing, 5----1---Multi-core optical fiber cable, 5&~5C
-m-fiber core wire, 6a to 6c-m-fiber core wire, io----one optical rotary connector device, 11-
--1--Frame body, 12-----One rotary plate, 13.25-m-connector, 16-----Concave mirror assembly, 17-----Support shingle material, 18- 20-m = concave mirror. 21-23-m-light guide member, 27-- Fresnel lens.
Claims (1)
イバケーブルから光信号を連続的に取り出す光ロータリ
−コネクタ装置であって、前記多心光フアイバケーブル
の各ファイバ心線がそれぞれ径方向に沿って取付けられ
、前記回転体と回転軸線を一致させて同期回転する回転
板と、該回転板の回転で前記各ファイバ心線から連続し
て出力されてくるそれぞれの平行信号光を各焦点位置に
集束する集束部材と、前記各焦点位置に配されて出力側
光ファイバが接続され、前記集光されてくる各平行信号
光を受光する複数の光ガイド部材とを備えることを特徴
とする光ロータリ−コネクタ装置。 ２、前記集束部材は、径の異なる複数の凹面鏡から成り
、これら凹面鏡は前記回転板から離れる方向に沿って順
次大径の凹面鏡が背面に位置するように配設され、それ
ぞれの焦点位置に前記各平行信号光を集束することを特
徴とする特許請求の範囲第１項に記載の光ロータリ−コ
ネクタ装置。 ３、前記集束部材は、径方向に沿って焦点距離が相違す
るレンズ部から成るフレネルレンズであることを特徴と
する特許請求の範囲第１個に記載の光ロータリ−コネク
タ装置。[Scope of Claims] 1. An optical rotary connector device that continuously takes out optical signals from a multi-core optical fiber cable that is let out and pulled out from a rotating body, the optical rotary connector device continuously extracting optical signals from a multi-core optical fiber cable that is fed out and pulled out from a rotating body, the optical rotary connector device a rotary plate which is attached along the radial direction and rotates synchronously with the rotational axis aligned with the rotating body, and each parallel signal that is successively output from each of the fiber cores as the rotary plate rotates. A focusing member that focuses light on each focal position, and a plurality of light guide members that are arranged at each of the focal positions, are connected to output side optical fibers, and receive the collimated parallel signal lights. An optical rotary connector device featuring: 2. The focusing member is composed of a plurality of concave mirrors having different diameters, and these concave mirrors are arranged so that concave mirrors with larger diameters are located on the back side in order in the direction away from the rotary plate, and the concave mirrors are arranged so that the concave mirrors with larger diameters are located on the back side, and the concave mirrors are arranged so that the concave mirrors with larger diameters are located on the back side in the direction away from the rotary plate. 2. The optical rotary connector device according to claim 1, wherein each parallel signal light beam is focused. 3. The optical rotary connector device according to claim 1, wherein the focusing member is a Fresnel lens comprising lens portions having different focal lengths along the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17666183A JPS6067909A (en) | 1983-09-23 | 1983-09-23 | Optical rotary connector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17666183A JPS6067909A (en) | 1983-09-23 | 1983-09-23 | Optical rotary connector device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6067909A true JPS6067909A (en) | 1985-04-18 |
Family
ID=16017485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17666183A Pending JPS6067909A (en) | 1983-09-23 | 1983-09-23 | Optical rotary connector device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02143204A (en) * | 1988-11-25 | 1990-06-01 | Sumitomo Electric Ind Ltd | Manufacture of fiber type coupler |
-
1983
- 1983-09-23 JP JP17666183A patent/JPS6067909A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02143204A (en) * | 1988-11-25 | 1990-06-01 | Sumitomo Electric Ind Ltd | Manufacture of fiber type coupler |
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