JPH0374322U - - Google Patents
Info
- Publication number
- JPH0374322U JPH0374322U JP11114390U JP11114390U JPH0374322U JP H0374322 U JPH0374322 U JP H0374322U JP 11114390 U JP11114390 U JP 11114390U JP 11114390 U JP11114390 U JP 11114390U JP H0374322 U JPH0374322 U JP H0374322U
- Authority
- JP
- Japan
- Prior art keywords
- light
- shielding plate
- flange
- receiving
- lens
- 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 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 2
Landscapes
- Optical Transform (AREA)
Description
第１図は本考案の一実施例を示す光フアイバ形
ロータリエンコーダの縦断面図、第２図は第１図
に示すエンコーダの光路を示す部分断面要部拡大
図、第３図は他の構成例を示す光フアイバ形ロー
タリエンコーダの縦断面図、第４図は第３図に示
すエンコーダの光路を示す部分断面要部拡大図、
第５図は従来の光フアイバ形ロータリエンコーダ
の構造を示す縦断面図である。
２１……フランジ、２２……回転軸、２３……
取付台、２４……回転側遮光板、２５……投光側
レンズ、２６……受光側レンズ、２７……固定側
遮光板、２８，２９……光フアイバケーブル、３
０……反射鏡（反射台）、３２，３３，３４……
反射面。
Fig. 1 is a vertical cross-sectional view of an optical fiber type rotary encoder showing an embodiment of the present invention, Fig. 2 is a partial cross-sectional enlarged view of the main part showing the optical path of the encoder shown in Fig. 1, and Fig. 3 is another configuration. A vertical cross-sectional view of an example optical fiber type rotary encoder, FIG. 4 is a partial cross-sectional enlarged view of the main part showing the optical path of the encoder shown in FIG.
FIG. 5 is a longitudinal sectional view showing the structure of a conventional optical fiber type rotary encoder. 21...flange, 22...rotating shaft, 23...
Mounting base, 24... Rotating side light shielding plate, 25... Light emitting side lens, 26... Light receiving side lens, 27... Fixed side light shielding plate, 28, 29... Optical fiber cable, 3
0...Reflector (reflection table), 32, 33, 34...
reflective surface.
Claims (1)
れ、該固定フランジの端面から突出端を有する回
転軸と、 前記回転軸の突出端に取付けた回転側円形遮光
板と、 前記フランジ側面から回転軸と平行に突出し、
前記回転側円形遮光板の外周を迂回して該回転側
円形遮光板と対向する位置に曲がつた断面Ｌ字形
形状を有し、前記固定フランジ端面との間の空間
内に前記回転側円形遮光板を回転自在に介在させ
る静止取付台とを有した光フアイバ形ロータリエ
ンコーダにおいて、 前記静止取付台の前記回転側円形遮光板と対向
する位置に光軸を互いに所定の鋭角度だけ傾けて
設けた投光側レンズ及び受光側レンズと、 前記投光側レンズ及び受光側レンズの夫々に略
直線状に接続される投光用及び受光用の２つの光
フアイバケーブルと、 前記静止取付台の前記回転側円形遮光板との前
記対向位置に、前記受光側レンズと平行に配置し
た固定側遮光板と、 前記フランジ端面に取付られ、該フランジ端面
に対して前記投光、受光側レンズの光軸間の所定
の鋭角度の傾きに対応した傾斜取付面を有する第
２の静止取付台と、 前記第２の静止取付台の傾斜取付面に貼着され
、前記投光側レンズから発した光を反射して前記
受光側レンズへ導く平板形の反射鏡とを、 具備して構成されたことを特徴とする光フアイバ
形ロータリエンコーダ。[Claims for Utility Model Registration] A fixed flange, a rotating shaft supported by the fixed flange via a rotation bearing and having an end protruding from the end face of the fixed flange, and a circular rotary side attached to the protruding end of the rotating shaft. a light shielding plate, protruding from the side surface of the flange parallel to the rotation axis;
The rotary side circular light shielding plate has an L-shaped cross section that bypasses the outer periphery of the rotating side circular light shielding plate and is bent at a position facing the rotating side circular light shielding plate, and the rotating side circular light shielding plate is provided in a space between the end face of the fixed flange. In a fiber optic rotary encoder having a stationary mount on which a plate is rotatably interposed, optical axes of the stationary mount are provided at a position facing the rotary side circular light-shielding plate with optical axes tilted to each other by a predetermined acute angle. a light emitting side lens and a light receiving side lens; two optical fiber cables for light emitting and light receiving connected substantially linearly to the light emitting side lens and the light receiving side lens, respectively; and the rotation of the stationary mounting base. a fixed-side light-shielding plate disposed parallel to the light-receiving-side lens at a position facing the side circular light-shielding plate; and a fixed-side light-shielding plate disposed on the flange end face so that the optical axes of the light-emitting and light-receiving lenses are aligned with respect to the flange end face. a second stationary mount having an inclined mounting surface corresponding to a predetermined acute angle of inclination; and a second stationary mount attached to the inclined mounting surface of the second stationary mount to reflect light emitted from the light emitting side lens. A fiber optic rotary encoder comprising: a flat reflecting mirror that guides the light to the receiving lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11114390U JPH0374322U (en) | 1990-10-25 | 1990-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11114390U JPH0374322U (en) | 1990-10-25 | 1990-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0374322U true JPH0374322U (en) | 1991-07-25 |
Family
ID=31659641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11114390U Pending JPH0374322U (en) | 1990-10-25 | 1990-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0374322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06160114A (en) * | 1992-11-26 | 1994-06-07 | Ono Sokki Co Ltd | Encoder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5458457A (en) * | 1977-09-28 | 1979-05-11 | Silonics | Optical rotary encoder |
| JPS5646403A (en) * | 1979-09-26 | 1981-04-27 | Canon Inc | Position detecting device |
| JPS58187810A (en) * | 1982-04-27 | 1983-11-02 | Fanuc Ltd | Encoder wherein optical fiber is used |
-
1990
- 1990-10-25 JP JP11114390U patent/JPH0374322U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5458457A (en) * | 1977-09-28 | 1979-05-11 | Silonics | Optical rotary encoder |
| JPS5646403A (en) * | 1979-09-26 | 1981-04-27 | Canon Inc | Position detecting device |
| JPS58187810A (en) * | 1982-04-27 | 1983-11-02 | Fanuc Ltd | Encoder wherein optical fiber is used |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06160114A (en) * | 1992-11-26 | 1994-06-07 | Ono Sokki Co Ltd | Encoder |
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