JPS646517U - - Google Patents
Info
- Publication number
- JPS646517U JPS646517U JP9947087U JP9947087U JPS646517U JP S646517 U JPS646517 U JP S646517U JP 9947087 U JP9947087 U JP 9947087U JP 9947087 U JP9947087 U JP 9947087U JP S646517 U JPS646517 U JP S646517U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving
- code plate
- signal
- emitting element
- 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 2
- 238000001514 detection method Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Optical Transform (AREA)
Description
第１図はアブソリユート型ロータリイ・エンコ
ーダの光学系の構成を示す斜視図、第２図は同エ
ンコーダの電気的構成を示すブロツク図である。
第３図は第２図に示す受光回路の一具体例を示す
回路図、第４図はその動作を示すタイム・チヤー
トである。第５図は第２図に示す受光回路の他の
具体例を示す回路図、第６図はその動作を示すタ
イム・チヤートである。
１……光源、４……フオトダイオード・アレイ
、１１……回転板（符号板）、２１……タイミン
グ回路、２２……光源パルス駆動回路、２３……
受光回路、４１，４２……フオトダイオード。
FIG. 1 is a perspective view showing the structure of an optical system of an absolute rotary encoder, and FIG. 2 is a block diagram showing the electrical structure of the encoder.
FIG. 3 is a circuit diagram showing a specific example of the light receiving circuit shown in FIG. 2, and FIG. 4 is a time chart showing its operation. FIG. 5 is a circuit diagram showing another specific example of the light receiving circuit shown in FIG. 2, and FIG. 6 is a time chart showing its operation. DESCRIPTION OF SYMBOLS 1... Light source, 4... Photodiode array, 11... Rotating plate (code plate), 21... Timing circuit, 22... Light source pulse drive circuit, 23...
Photodetector circuit, 41, 42...photodiode.
Claims (1)
符号が記録された符号板、 符号板に投光する光を発光する発光素子を含み
、発光素子をパルス点灯させる投光駆動回路、お
よび 符号板からの透過信号光または反射信号光を受
光する受光素子を含み、受光素子の受光信号を上
記のパルス点灯に同期したタイミングで読取信号
に変換する受光回路、 を備えた光学式位置検出装置。[Claims for Utility Model Registration] A code plate that is optically readable and records a code representing absolute position information, and a light emitting element that emits light to be projected onto the code plate, and that illuminates the light emitting element in pulses. A light-driving circuit, and a light-receiving circuit that includes a light-receiving element that receives transmitted signal light or reflected signal light from the code plate, and that converts the light-receiving signal of the light-receiving element into a read signal at a timing synchronized with the above-mentioned pulse lighting. Optical position detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9947087U JPS646517U (en) | 1987-06-30 | 1987-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9947087U JPS646517U (en) | 1987-06-30 | 1987-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS646517U true JPS646517U (en) | 1989-01-13 |
Family
ID=31326658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9947087U Pending JPS646517U (en) | 1987-06-30 | 1987-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS646517U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58118909A (en) * | 1982-01-06 | 1983-07-15 | Mitsutoyo Mfg Co Ltd | Photoelectric type encoder |
| JPS6126270A (en) * | 1984-07-16 | 1986-02-05 | Fanuc Ltd | Light emitting device |
-
1987
- 1987-06-30 JP JP9947087U patent/JPS646517U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58118909A (en) * | 1982-01-06 | 1983-07-15 | Mitsutoyo Mfg Co Ltd | Photoelectric type encoder |
| JPS6126270A (en) * | 1984-07-16 | 1986-02-05 | Fanuc Ltd | Light emitting device |
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