JPS5646403A - Position detecting device - Google Patents
Position detecting deviceInfo
- Publication number
- JPS5646403A JPS5646403A JP12253979A JP12253979A JPS5646403A JP S5646403 A JPS5646403 A JP S5646403A JP 12253979 A JP12253979 A JP 12253979A JP 12253979 A JP12253979 A JP 12253979A JP S5646403 A JPS5646403 A JP S5646403A
- Authority
- JP
- Japan
- Prior art keywords
- luminous flux
- inlet
- emitted
- light
- photodetector
- 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
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
- Control Of Position Or Direction (AREA)
Abstract
PURPOSE: To realize the simplification of structure as well as a low cost, by putting the emitted luminous flux into the prism via the part to be detected after distributing both the light emitting element and the photodetector at the same side and then leading the emitted light into the photodetector.
CONSTITUTION: The detection part is formed by the wiring substrate 5 provided with the light emitting element 1, photodetector 2 and element cover 4 respectively. The luminous flux emitted from the element 1 goes toward the arrow marking through the luminous flux inlet/outlet 4A. In this case, the luminous flux enters the prism 10 from the light inlet/outlet surface 10C to be reflected on the reflective surface 10A when the prism 10 sealed to the rotor 9 reaches the inlet/outlet 4A. Then the reflected luminous flux is bent toward the arrow marking to go toward the arrow mark through the surface 10C after reflected on the reflective surface 10B, and then enters the element 2 through the luminous flux inlet 4B of the element 2. The time during which the emitted luminous flux reaches the element 2 is equal to the velocity of light and so short that can be neglected. At the same time, the detection part can be packaged compactly onto the substrate 5 along with a reduction of the number of component parts. As a result, the structure can be simplified to realize a cost reduction.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12253979A JPS5646403A (en) | 1979-09-26 | 1979-09-26 | Position detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12253979A JPS5646403A (en) | 1979-09-26 | 1979-09-26 | Position detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5646403A true JPS5646403A (en) | 1981-04-27 |
Family
ID=14838360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12253979A Pending JPS5646403A (en) | 1979-09-26 | 1979-09-26 | Position detecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5646403A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931017U (en) * | 1982-08-20 | 1984-02-27 | ミノルタ株式会社 | pulse generator |
| JPS6095515U (en) * | 1983-12-07 | 1985-06-29 | 株式会社 小野測器 | Photoelectric angle measuring device |
| JPS61118613A (en) * | 1984-11-15 | 1986-06-05 | Fanuc Ltd | Optical fiber type rotary encoder |
| JPS61128626U (en) * | 1985-01-30 | 1986-08-12 | ||
| JPH02113116U (en) * | 1989-02-28 | 1990-09-11 | ||
| JPH0374322U (en) * | 1990-10-25 | 1991-07-25 | ||
| US6972402B2 (en) | 2002-06-03 | 2005-12-06 | Mitsubishi Denki Kabushiki Kaisha | Photoelectric rotary encoder |
-
1979
- 1979-09-26 JP JP12253979A patent/JPS5646403A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931017U (en) * | 1982-08-20 | 1984-02-27 | ミノルタ株式会社 | pulse generator |
| JPH0122091Y2 (en) * | 1982-08-20 | 1989-06-29 | ||
| JPS6095515U (en) * | 1983-12-07 | 1985-06-29 | 株式会社 小野測器 | Photoelectric angle measuring device |
| JPS61118613A (en) * | 1984-11-15 | 1986-06-05 | Fanuc Ltd | Optical fiber type rotary encoder |
| JPS61128626U (en) * | 1985-01-30 | 1986-08-12 | ||
| JPH0447699Y2 (en) * | 1985-01-30 | 1992-11-11 | ||
| JPH02113116U (en) * | 1989-02-28 | 1990-09-11 | ||
| JPH0374322U (en) * | 1990-10-25 | 1991-07-25 | ||
| US6972402B2 (en) | 2002-06-03 | 2005-12-06 | Mitsubishi Denki Kabushiki Kaisha | Photoelectric rotary encoder |
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