JPS62292032A - Rotary information transmission device - Google Patents
Rotary information transmission deviceInfo
- Publication number
- JPS62292032A JPS62292032A JP61136429A JP13642986A JPS62292032A JP S62292032 A JPS62292032 A JP S62292032A JP 61136429 A JP61136429 A JP 61136429A JP 13642986 A JP13642986 A JP 13642986A JP S62292032 A JPS62292032 A JP S62292032A
- Authority
- JP
- Japan
- Prior art keywords
- rotating
- information transmission
- optical
- light
- transmission 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 45
- 239000013307 optical fiber Substances 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000002411 adverse Effects 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000758 substrate 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
- G02B6/26—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
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29371—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating principle based on material dispersion
- G02B6/29373—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating principle based on material dispersion utilising a bulk dispersive element, e.g. prism
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
本発明はＶＴＲをはじめとする磁気記録再生装置の回転
シリンダへの情報伝達、発電機、電動機の電機子の温度
監視、ロボット等の関節部分での情報伝達等、回転体へ
情報伝達を行なう装置に関するものである。[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to the transmission of information to rotating cylinders of magnetic recording and reproducing devices such as VTRs, and the temperature of the armature of generators and motors. The present invention relates to a device that transmits information to a rotating body, such as monitoring or transmitting information at the joints of a robot or the like.
第３図（ａｌ、 Ｑ）ｌは例えば特開昭５８−２００４
０５ 号公報に示された磁気記録再生装置における従来
の回転体情報伝達装置を示す対向面の平面図であり、２
００，２１０は基板、４．１４は光電気変換デバイス、
６．１６は電気光変換デバイスである。Figure 3 (al, Q)l is, for example, Japanese Patent Application Laid-Open No. 58-2004.
2 is a plan view of an opposing surface showing a conventional rotating body information transmission device in a magnetic recording and reproducing device disclosed in Publication No. 05;
00,210 is a substrate, 4.14 is a photoelectric conversion device,
6.16 is an electro-optical conversion device.
ここで図（ａ）は回転子側もしくは固定子側のいずれか
一方の装置を示し、図ｃｏ）は他方の装置を示している
。上記図（ａｌの装置では、リング状の光電気変換素子
１４と点発光式の電気光変換素子１６が複数の同心円上
に、及びその隣接する同心円間に順次交互に取り付けら
れており、一方上記図（ｂｌの装置では、リング状の光
電気変換素子４と点発光式の電気光変換素子６が、図（
ｉｌｌの装置の電気光変換素子１６．光電気変換素子１
４と同じ半径の同心円上に、及びその隣接する同心円間
にそれぞれ取り付けられており、これにより図（ａｌの
装置と図（ｂｌの装置とがどのような相対角度位置にあ
る時にも対応する光電気変換素子１４．４と電気光変換
素子６．１６との組が必ず相互に接触し、信号の伝達が
なされるようになっている。これにより記録時（固定子
側から回転子側への信号伝送）、再生時（回転子側から
固定子側への信号伝送）とも、信号伝送が可能となる。Here, Figure (a) shows the device on either the rotor side or the stator side, and Figure (co) shows the other device. In the device shown in the above figure (al), the ring-shaped photoelectric conversion element 14 and the point-emitting type electro-optic conversion element 16 are sequentially and alternately installed on a plurality of concentric circles and between adjacent concentric circles. In the device shown in Fig.
16.Electro-optical conversion element of ill device. Photoelectric conversion element 1
4 and between the adjacent concentric circles, so that no matter what relative angular position the device in figure (al) and the device in figure (bl) are in, the corresponding light beams will be emitted. The pair of electrical transducer 14.4 and electro-optical transducer 6.16 are always in contact with each other to transmit signals.This allows for the transmission of signals during recording (from the stator side to the rotor side). Signal transmission is possible during both signal transmission (signal transmission) and regeneration (signal transmission from the rotor side to the stator side).
この様に光によって情報伝達を行なうことによりロータ
リートランスを用いた場合に問題となるクロストークを
容易に解決することができる。また第３図に示すような
構造にすることにより双方向にマルチチャンネルの情報
伝達を行なうことができる。By transmitting information using light in this manner, crosstalk, which is a problem when using a rotary transformer, can be easily solved. Further, by adopting a structure as shown in FIG. 3, bidirectional multi-channel information transmission can be performed.
従来の回転体情報伝達装置は、その形状及び機械的構成
が平板型ロータリートランスと同じであるため、機械的
形状が大きくなり、ドラムアセンブリ設計が難しい、光
電気変換デバイス４．１４が第３図に示した特殊な形状
をしているため製造が困難であり、広帯域の伝達特性を
持ったものを作れない等の問題点があった。The conventional rotating body information transmission device has the same shape and mechanical configuration as a flat plate rotary transformer, so the mechanical shape is large and the drum assembly design is difficult. It is difficult to manufacture because of the special shape shown in Figure 2, and there are problems such as the inability to manufacture products with broadband transmission characteristics.
この発明は上記のような問題点を解消するためになされ
たもので、形状を小さくできるとともに、広帯域の伝達
特性をもち、情報伝達に用いる点発光又は点受光の電気
光又は光電気変換デバイスの製造が容易であり、かつマ
ルチチャンネルの情秘を双方向に伝達できる回転体情報
伝達装置を得ることを目的としている。This invention was made to solve the above-mentioned problems, and has a small size, broadband transmission characteristics, and a point-emitting or point-receiving electro-optical or photoelectric conversion device used for information transmission. It is an object of the present invention to obtain a rotating body information transmission device that is easy to manufacture and capable of bidirectionally transmitting multi-channel secrets.
この発明に係る回転体情報伝達装置は、回転側から固定
側へ又は固定側から回転側へ伝達すべきマルチチャンネ
ルの情報を複数の電気光変換素子及び集光器を用いて波
長多重によって多重した光信号とするとともに、この光
信号を、その光路の一部を上記回転側と固定側とを接続
する回転軸の中心線上に配置して回転側から固定側へ又
は固定側から回転側に伝達し、受光した前記光信号を分
光器を用いて波長によって分光するようにしたものであ
る。The rotating body information transmission device according to the present invention multiplexes multi-channel information to be transmitted from the rotating side to the stationary side or from the stationary side to the rotating side by wavelength division multiplexing using a plurality of electro-optical conversion elements and a condenser. This optical signal is transmitted from the rotating side to the fixed side or from the fixed side to the rotating side by arranging a part of the optical path on the center line of the rotating shaft connecting the rotating side and the fixed side. The received optical signal is then separated into wavelengths using a spectroscope.
この発明においては、光信号はマルチチャンネルの情報
を波長多重したものであり、この光信号は回転側と固定
側とを接続する回転軸の中心線上に配置した光路を通り
、回転側から固定側へ、又は固定側から回転側へ伝達さ
れる。In this invention, the optical signal is wavelength-multiplexed multi-channel information, and this optical signal passes through an optical path placed on the center line of the rotating shaft connecting the rotating side and the fixed side, and is transmitted from the rotating side to the fixed side. or from the stationary side to the rotating side.
以下、この発明の一実施例を図について説明する。第１
図において、１，１１は光ファイバ、２゜１２は拡散光
を平行光にするロッドレンズ、３゜１３は波長によって
分光する分光器であるプリズム、４，５，１４．１５は
分光された光を電気信号に変換するホトダイオード、ホ
トトランジスタ等の光電気変換デバイス、６，７．１６
．１７は電気信号を光に変換する発光ダイオード、レー
ザダイオード等の電気光変換デバイスである。そして上
記素子１〜７は回転側に、素子１．１−１７は固定側に
設けられている。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 1 and 11 are optical fibers, 2° 12 is a rod lens that converts diffused light into parallel light, 3° 13 is a prism that is a spectrometer that separates light into wavelengths, and 4, 5, 14, and 15 are separated lights. Photoelectric conversion devices such as photodiodes and phototransistors that convert signals into electrical signals, 6, 7.16
．． Reference numeral 17 denotes an electro-optical conversion device such as a light emitting diode or a laser diode that converts an electric signal into light. The elements 1 to 7 are provided on the rotating side, and the elements 1.1 to 17 are provided on the stationary side.
また１０は回転部において回転側と固定側とを接続する
回転軸の中心線、１００，１０１は前記プリズム、ワン
ドレンズ。光電気変換デバイス。Further, 10 is the center line of a rotating shaft connecting the rotating side and the fixed side in the rotating part, and 100 and 101 are the prisms and wand lenses. Photoelectric conversion device.
電気光変換デバイス等を組合わせた光電変換ユニットで
ある。This is a photoelectric conversion unit that combines electrical and optical conversion devices.
光ファイバｌと光ファイバ１１は回転軸中心線１０上で
、それぞれの端面が対向するとともに近接（例えば０．
１ｍｍ ” １＋ｎｍ） して構成される。The optical fiber 1 and the optical fiber 11 are located on the center line 10 of the rotation axis, with their respective end surfaces facing each other and close to each other (for example, 0.05 mm).
1mm ” 1+nm).
次に動作について説明する。回転側から固定側へ情報を
伝達する場合は、伝達する情報を電気光変換デバイス６
．７によりそれぞれ波長の異なった光に変換し、プリズ
ム３で屈折させて集光し、ロッドレンズ２．光ファイバ
１を通り回転軸中心線１０上で固定側の光ファイバ１１
に入射させる。Next, the operation will be explained. When transmitting information from the rotating side to the stationary side, the information to be transmitted is transferred to the electro-optical conversion device 6.
．． 7 converts the lights into lights with different wavelengths, and the prism 3 refracts and condenses the light, and the rod lens 2. The optical fiber 11 on the fixed side passes through the optical fiber 1 and is on the rotation axis center line 10.
Inject it into the
光ファイバ１１を通った光はロッドレンズ１２によって
平行光にされ、プリズム１３により波長によって分光さ
れたのち、光電気変換デバイス１４゜１５によって電気
信号に変換される。The light passing through the optical fiber 11 is made into parallel light by the rod lens 12, separated into wavelengths by the prism 13, and then converted into electrical signals by the photoelectric conversion devices 14 and 15.
固定側から回転側へ情報を伝達する場合は電気光変換デ
バイス１６．１７より出力された光は上記の経路を逆に
伝送され、光電気変換デバイス４゜５により電気信号に
変換される。When transmitting information from the stationary side to the rotating side, the light output from the electro-optical conversion devices 16, 17 is transmitted in the opposite direction along the above-mentioned path, and is converted into an electrical signal by the photo-electric conversion devices 4.5.
第２図は第１図で説明した回転体情報伝達装置をＶＴＲ
の回転シリンダへの情報伝達に使用した場合を示す断面
側面図である。図において、１は回転側の光ファイバ、
１１は固定側の光ファイバ、２０は回転シリンダ、２１
は固定シリンダ、２２は回転軸、２３は回転シリンダ２
０を回転させるモータ、２４は磁気記録再生を行なう磁
気ヘッド、２５は光ファイバｌを回転軸中心線上に固定
する円柱状の支持材、２６は光ファイバ１１を回転軸中
心線上に固定する支持材、２７は回転シリンダ２０上に
構成された再生アンプ、記録アンプ等の電子回路、１０
０は第１図において説明した光電変換ユニットである。Figure 2 shows the rotating body information transmission device explained in Figure 1.
FIG. 3 is a cross-sectional side view showing a case where the device is used to transmit information to a rotating cylinder. In the figure, 1 is the optical fiber on the rotating side,
11 is an optical fiber on the fixed side, 20 is a rotating cylinder, 21
is a fixed cylinder, 22 is a rotating shaft, and 23 is a rotating cylinder 2.
24 is a magnetic head that performs magnetic recording and reproduction; 25 is a cylindrical support member that fixes the optical fiber l on the center line of the rotation axis; 26 is a support member that fixes the optical fiber 11 on the center line of the rotation axis. , 27 is an electronic circuit such as a reproducing amplifier and a recording amplifier configured on the rotary cylinder 20;
0 is the photoelectric conversion unit explained in FIG.
１０は回転軸２２の中心線である。10 is the center line of the rotating shaft 22.
第２図においても光ファイバ１と光ファイバ１１は回転
軸中心線１０上でそれぞれの端面が対向するとともに近
接（例えば０．１ｍｍ〜１１Ｔｌ＋ｎ程度）して構成さ
れている。In FIG. 2 as well, the optical fiber 1 and the optical fiber 11 are configured such that their respective end surfaces face each other on the center line 10 of the rotating shaft and are close to each other (for example, about 0.1 mm to 11Tl+n).
ＶＴＲを記録状態にするとモータ２３により回転シリン
ダ２０が回転するとともに、回転シリンダ２０．固定シ
リンダ２１に巻きつけられている（ｎステープに磁気ヘ
ッド２４により記録を行なう。When the VTR is put into the recording state, the motor 23 rotates the rotary cylinder 20, and the rotary cylinder 20. The magnetic head 24 records on the (n tape) which is wound around a fixed cylinder 21.
各磁気ヘッドへの記録信号は、固定側より光電変換ユニ
ット１０１ （第２図では図示せず）により波長多重さ
れ、光ファイバＩｔを通り、回転側の光ファイバ１の中
へ導かれたのち、光電変換ユニット１００により多重さ
れた信号を分離し電子回路２７中の記録アンプによって
増幅し、磁気ヘッド２４に供給される。The recording signal to each magnetic head is wavelength-multiplexed by a photoelectric conversion unit 101 (not shown in FIG. 2) from the fixed side, passes through the optical fiber It, and is guided into the optical fiber 1 on the rotating side. The signals multiplexed by the photoelectric conversion unit 100 are separated, amplified by a recording amplifier in the electronic circuit 27, and supplied to the magnetic head 24.
ＶＴＲを再生状態にすると、モータ２３により回転シリ
ンダ２０が回転するとともに、回転シリンダ２０．固定
シリンダ２１に巻きつけられている磁気テープの記ｔ＆
（４１化を磁気ヘッド２４にて再生し、電子回路２７
中の再生アンプにて増幅したのち、光電変換ユニット１
００にて波長多重し、光ファイバ１．１１を通り固定側
の光電変換ユニッ）１０１にて分離し、電気信号に変換
する。When the VTR is put into the playback state, the motor 23 rotates the rotary cylinder 20, and the rotary cylinder 20. Notes on the magnetic tape wrapped around the fixed cylinder 21
(Reproduced by the magnetic head 24, the electronic circuit 27
After being amplified by the reproducing amplifier inside, the photoelectric conversion unit 1
The signals are wavelength-multiplexed at 00, passed through optical fibers 1 and 11, separated at fixed-side photoelectric conversion unit 101, and converted into electrical signals.
なお上記実施例では、回転側と固定側の電気光変換デバ
イス６．７，１６．１７はすべて発光波長が異なるが、
例えば第１図において電気光変換デバイス６と光電気変
換デバイス４との間を１ｍｍ以下程度に近接させて構成
し、かつ電気光変換デバイス１６と光電気変換デバイス
１４との間を１ｍｍ以下程度に近接させて構成すること
により、電気光変換デバイス６と電気光変換デバイス１
６の発光波長を同一に選ぶことができ、この方法により
回転側と固定側の電気光変換デバイスの発光波長を同一
に選んでもよい。In the above embodiment, the electro-optical conversion devices 6.7 and 16.17 on the rotating side and the fixed side all have different emission wavelengths.
For example, in FIG. 1, the electro-optic conversion device 6 and the opto-electric conversion device 4 are arranged close to each other by about 1 mm or less, and the distance between the electro-optic conversion device 16 and the opto-electric conversion device 14 is about 1 mm or less. By configuring them in close proximity, the electro-optic conversion device 6 and the electro-optic conversion device 1
6 can be selected to be the same, and by this method, the emission wavelengths of the electro-optical conversion devices on the rotating side and the fixed side can be selected to be the same.
この場合は、信号のチャンネル数が増した場合の構成余
裕度が増す、クロストークが小さくなる等の効果がある
。In this case, there are effects such as increased configuration margin when the number of signal channels increases and crosstalk reduced.
なお上記実施例では、電気光変換デバイスと、光電気変
換デバイスは別部品で構成されているが、光−電気、電
気−光の双方向に変換できるデバイスを用いてもよく、
この場合部品点数の減少、送信と受信の波長を同一に選
べる等のことにより信号のチャンネル数が増した場合の
構成余裕度が増す、クロストークが小さくなる等の効果
がある。In the above embodiment, the electro-optical conversion device and the photo-electric conversion device are configured as separate parts, but a device capable of bidirectional conversion between light and electricity or electricity and light may also be used.
In this case, there are effects such as a reduction in the number of parts, the ability to select the same wavelength for transmission and reception, and an increase in configuration margin when the number of signal channels increases, and a reduction in crosstalk.
なお上記実施例では分光器３．１３にプリズムを用いた
が、これは回折格子、フィルター等を用いてもよい。In the above embodiment, a prism is used as the spectroscope 3.13, but a diffraction grating, a filter, etc. may also be used instead.
また上記実施例では、回転軸２２の上側より光の伝達を
行なったが、この光の伝達は回転軸２２の下側から行な
ってもよい。Further, in the above embodiment, the light is transmitted from above the rotating shaft 22, but this light may be transmitted from below the rotating shaft 22.
また上記実施例では、回転側から固定側への伝達が２チ
ヤンネル、固定側から回転側への伝達が２チヤンネルの
双方向２チヤンネルずつの情報伝達を行なったが、これ
は２チヤンネルである必要はなく、何チャンネルであっ
てもよい。また、回転側から固定側へのチャンネル数と
固定側から回転側へのチャンネル数が異なっていてもよ
（、いずれか片方のみへの情報伝達であってもよい。Furthermore, in the above embodiment, information was transmitted in two directions in each direction: two channels for transmission from the rotating side to the stationary side, and two channels for transmission from the stationary side to the rotating side, but this is not necessary. It can be any channel. Furthermore, the number of channels from the rotating side to the stationary side and the number of channels from the stationary side to the rotating side may be different (or information may be transmitted to only one of them).
なお、上記実施例では、光路の途中に光ファイバを用い
たが、光ファイバを使用せず回転軸中心線上に回転側の
分光器と固定側の分光器とを近接して構成してもよい。In the above embodiment, an optical fiber is used in the middle of the optical path, but the rotating side spectrometer and the stationary side spectrometer may be arranged close to each other on the center line of the rotation axis without using an optical fiber. .
また、上記実施例では、ＶＴＲの回転シリンダへの情報
伝達について説明したが、この発明は他の回転体に適用
してもよく、例えば発電機、電動機の電機子の温度監視
やロボット等の関節部分での情報伝達であってもよい。Further, in the above embodiment, information transmission to the rotating cylinder of a VTR was explained, but the present invention may be applied to other rotating bodies, such as monitoring the temperature of the armature of a generator or electric motor, or the joints of a robot, etc. Information may be transmitted in parts.
また、本発明はＶＴＲの回転シリンダ上に設置された増
幅器への電源の供給のために用いてもよい。即ち、第１
図の電気光変換デバイス１６．光電気変換デバイス４を
用いて電源を供給することができる。The present invention may also be used to supply power to an amplifier installed on the rotating cylinder of a VTR. That is, the first
Electro-optical conversion device 16 in the figure. Power can be supplied using the photoelectric conversion device 4.
以上のようにこの発明によれば、回転体情報伝達装置に
おいて、マルチチャンネルの情報を波長多重して伝達す
るように構成したので、広帯域の周波数特性を持つ点光
源の電気光変換デバイス、魚受光の光電気変換デバイス
を用いることができ、また、チャンネル数が増しても光
路の数は１つなので装置の構成が単純で小さくできると
ともに、安価で信頼性の高いものが得られる効果がある
。As described above, according to the present invention, the rotary body information transmission device is configured to wavelength-multiplex and transmit multi-channel information, so it is possible to use a point light source electro-optical conversion device with broadband frequency characteristics, a fish light receiving device, etc. In addition, even if the number of channels increases, the number of optical paths is one, so that the structure of the device can be made simple and small, and it is also inexpensive and highly reliable.
第１図はこの発明の一実施例による回転体情報伝達装置
を示す基本的構成図、第２図は第１図の実施例をＶＴＲ
の回転シリンダに使用した場合のドラムアセンブリを示
す断面側面図、第３図は従来の回転体情報伝達装置を示
す図である。
１．１１は光ファイバ、３，１３は分光器、４゜５．１
４．１５は光電気変換デバイス、６．７゜１６．１７は
電気光変換デバイス、１０は回転軸中心線。
なお図中同一符号は同−又は相当部分を示す。Fig. 1 is a basic configuration diagram showing a rotating body information transmission device according to an embodiment of the present invention, and Fig. 2 shows the embodiment of Fig. 1 as a VTR.
FIG. 3 is a cross-sectional side view showing a drum assembly used in a rotating cylinder, and FIG. 3 is a diagram showing a conventional rotating body information transmission device. 1.11 is an optical fiber, 3 and 13 are spectrometers, 4°5.1
4.15 is a photoelectric conversion device, 6.7° 16.17 is an electro-optic conversion device, and 10 is a rotation axis center line. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (4)
なう回転体情報伝達装置において、 回転側と固定側のいずれか一方に設けられた発光波長の
異なる複数の電気光変換デバイスと、該複数の電気光変
換デバイスが発光した光を波長多重して集光する集光器
と、 前記他方に設けられ受光した光を波長によって分光する
分光器と、 前記分光器で分光した光を電気信号に変換する複数の光
電気変換デバイスと、 前記集光器から前記分光器までの光路の一部を上記回転
側と固定側とを接続する回転軸の中心線上に配置したこ
とを特徴とする回転体情報伝達装置。(1) In a rotating body information transmission device that transmits information by light between a rotating part and a fixed part, a plurality of electro-optical conversion devices with different emission wavelengths are provided on either the rotating side or the fixed side; a condenser that wavelength-multiplexes and condenses the light emitted by the plurality of electro-optic conversion devices; a spectroscope provided on the other side that separates the received light according to wavelength; and an electric A plurality of photoelectric conversion devices that convert into signals, and a part of the optical path from the condenser to the spectroscope are arranged on the center line of the rotation axis connecting the rotation side and the fixed side. Rotating body information transmission device.
、前記分光器、前記光電気変換デバイスを備え、双方向
の情報伝達を可能としたことを特徴とする特許請求の範
囲第１項記載の回転体情報伝達装置。(2) The electro-optical conversion device, the spectrometer, and the photo-electric conversion device are provided on both the rotating side and the stationary side to enable bidirectional information transmission. The described rotating body information transmission device.
は全部に光ファイバを用いたことを特徴とする特許請求
の範囲第１項又は第２項記載の回転体情報伝達装置(3) A rotating body information transmission device according to claim 1 or 2, characterized in that an optical fiber is used for part or all of the optical path from the condenser to the spectroscope.
特徴とする特許請求の範囲第１項ないし第３項のいずれ
かに記載の回転体情報伝達装置。(4) The rotating body information transmission device according to any one of claims 1 to 3, wherein a prism is used for the condenser and the spectroscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61136429A JPS62292032A (en) | 1986-06-12 | 1986-06-12 | Rotary information transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61136429A JPS62292032A (en) | 1986-06-12 | 1986-06-12 | Rotary information transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62292032A true JPS62292032A (en) | 1987-12-18 |
Family
ID=15174935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61136429A Pending JPS62292032A (en) | 1986-06-12 | 1986-06-12 | Rotary information transmission device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62292032A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02120788A (en) * | 1988-10-29 | 1990-05-08 | Stanley Electric Co Ltd | Three-dimensional display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5242004B1 (en) * | 1971-05-13 | 1977-10-21 | ||
| JPS60152136A (en) * | 1984-01-19 | 1985-08-10 | Honda Motor Co Ltd | Optical multiplex communication equipment for automobile |
-
1986
- 1986-06-12 JP JP61136429A patent/JPS62292032A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5242004B1 (en) * | 1971-05-13 | 1977-10-21 | ||
| JPS60152136A (en) * | 1984-01-19 | 1985-08-10 | Honda Motor Co Ltd | Optical multiplex communication equipment for automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02120788A (en) * | 1988-10-29 | 1990-05-08 | Stanley Electric Co Ltd | Three-dimensional display device |
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