JPS5526469A - Encoder unit - Google Patents
Encoder unitInfo
- Publication number
- JPS5526469A JPS5526469A JP9971278A JP9971278A JPS5526469A JP S5526469 A JPS5526469 A JP S5526469A JP 9971278 A JP9971278 A JP 9971278A JP 9971278 A JP9971278 A JP 9971278A JP S5526469 A JPS5526469 A JP S5526469A
- Authority
- JP
- Japan
- Prior art keywords
- light
- grids
- rotation
- shielding plate
- light shielding
- 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
Abstract
PURPOSE: To make a unit simple-constitution and cheap by providing curved grids, which are in proportion to the rotation angle, in the light shielding plate fixed to the rotation axis.
CONSTITUTION: Light shielding plate 4 is formed by a plate through which no light can pass, and light shielding plate 4 is provided with four sets of grids 6 which consist of curves (Archimedes curves) increasing or reducing the radius linearly according to the rotation of ratation axis 5 and cause the light to pass through and is provided with arc-shaped grids 7 for distinguishing four sets of grids 6 from one another. Then, the light of light source 1 consisting of a light emission diode becomes a parallel light beam by lens 2 and passes through grids 6 and 7 and is received by photo detector 3 where many photo diodes are arranged linearly, and signals from the diode which received the light are processed as binary signals by a reference voltage, thereby detecting the rotation position of rotation axis 5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9971278A JPS5526469A (en) | 1978-08-15 | 1978-08-15 | Encoder unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9971278A JPS5526469A (en) | 1978-08-15 | 1978-08-15 | Encoder unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5526469A true JPS5526469A (en) | 1980-02-25 |
Family
ID=14254678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9971278A Pending JPS5526469A (en) | 1978-08-15 | 1978-08-15 | Encoder unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5526469A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS576996A (en) * | 1980-06-17 | 1982-01-13 | Tokyo Optical | Absolute encoder |
JPS576995A (en) * | 1980-06-17 | 1982-01-13 | Tokyo Optical | Absolute encoder using optical sensor array device |
JPS60259909A (en) * | 1984-06-06 | 1985-12-23 | Haamonitsuku Drive Syst:Kk | Optical potentiometer |
JPS61198005A (en) * | 1985-02-28 | 1986-09-02 | Matsushita Electric Ind Co Ltd | Position detecting device |
CN103644927A (en) * | 2013-12-12 | 2014-03-19 | 刘万更 | Adjustable resolution no-level photoelectric absolute value encoder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4968744A (en) * | 1972-11-01 | 1974-07-03 |
-
1978
- 1978-08-15 JP JP9971278A patent/JPS5526469A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4968744A (en) * | 1972-11-01 | 1974-07-03 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS576996A (en) * | 1980-06-17 | 1982-01-13 | Tokyo Optical | Absolute encoder |
JPS576995A (en) * | 1980-06-17 | 1982-01-13 | Tokyo Optical | Absolute encoder using optical sensor array device |
JPS60259909A (en) * | 1984-06-06 | 1985-12-23 | Haamonitsuku Drive Syst:Kk | Optical potentiometer |
JPS61198005A (en) * | 1985-02-28 | 1986-09-02 | Matsushita Electric Ind Co Ltd | Position detecting device |
CN103644927A (en) * | 2013-12-12 | 2014-03-19 | 刘万更 | Adjustable resolution no-level photoelectric absolute value encoder |
CN103644927B (en) * | 2013-12-12 | 2016-01-13 | 刘万更 | Adjustable resolution no-level photoelectric absolute value encoder |
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