JPS557649A - Photo encoder - Google Patents
Photo encoderInfo
- Publication number
- JPS557649A JPS557649A JP8053778A JP8053778A JPS557649A JP S557649 A JPS557649 A JP S557649A JP 8053778 A JP8053778 A JP 8053778A JP 8053778 A JP8053778 A JP 8053778A JP S557649 A JPS557649 A JP S557649A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- disc
- slit disc
- contact
- detection part
- 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
Landscapes
- Optical Transform (AREA)
Abstract
PURPOSE: To stabilize the performance, by specifying the material of the slit disc and the method of holding.
CONSTITUTION: The slit disc 3 turned between the light emitting part 4 and the photo detection part 7 and fitted on the motor shaft 2a, is formed with elastic material, and the disc is in contact with the slit disc positioning member 10 with slight deflection. Thus, the slit disc 3 is revolved with the condition that is is pressed on the index slit 9 at all times. Even if the slit disc 3 has greater bending, it is in contact with the index slit 9 with the elasticity of itself to keep the distance between the both constant. Accordingly, the output of the photo detection part 7 is always stable to enable having accurate control.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8053778A JPS557649A (en) | 1978-07-04 | 1978-07-04 | Photo encoder |
DE2954671A DE2954671C2 (en) | 1978-07-04 | 1979-07-03 | |
DE19792926819 DE2926819A1 (en) | 1978-07-04 | 1979-07-03 | PRINTER |
US07/011,397 US4775253A (en) | 1978-07-04 | 1987-02-04 | Printer with a movable carriage and a light source mounted off the carriage for positioning a type element mounted on the carriage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8053778A JPS557649A (en) | 1978-07-04 | 1978-07-04 | Photo encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS557649A true JPS557649A (en) | 1980-01-19 |
Family
ID=13721095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8053778A Pending JPS557649A (en) | 1978-07-04 | 1978-07-04 | Photo encoder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS557649A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57151816A (en) * | 1981-02-17 | 1982-09-20 | Olivetti & Co Spa | Optical transducer |
JPS6089711A (en) * | 1983-10-21 | 1985-05-20 | Canon Inc | Rotary encoder |
JPS6089710A (en) * | 1983-10-21 | 1985-05-20 | Canon Inc | Rotary encoder |
JPS623618A (en) * | 1985-06-29 | 1987-01-09 | Sony Corp | Optical encoder |
-
1978
- 1978-07-04 JP JP8053778A patent/JPS557649A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57151816A (en) * | 1981-02-17 | 1982-09-20 | Olivetti & Co Spa | Optical transducer |
JPS6089711A (en) * | 1983-10-21 | 1985-05-20 | Canon Inc | Rotary encoder |
JPS6089710A (en) * | 1983-10-21 | 1985-05-20 | Canon Inc | Rotary encoder |
JPH0472169B2 (en) * | 1983-10-21 | 1992-11-17 | Canon Kk | |
JPH0472168B2 (en) * | 1983-10-21 | 1992-11-17 | Canon Kk | |
JPS623618A (en) * | 1985-06-29 | 1987-01-09 | Sony Corp | Optical encoder |
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