JPS5669513A - Rotary encoder - Google Patents
Rotary encoderInfo
- Publication number
- JPS5669513A JPS5669513A JP14576679A JP14576679A JPS5669513A JP S5669513 A JPS5669513 A JP S5669513A JP 14576679 A JP14576679 A JP 14576679A JP 14576679 A JP14576679 A JP 14576679A JP S5669513 A JPS5669513 A JP S5669513A
- Authority
- JP
- Japan
- Prior art keywords
- rotary encoder
- laser
- optical fiber
- slits
- disk
- 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.)
- Granted
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Optical Transform (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
PURPOSE:To obtain a rotary encoder excellent in accuracy by irradiating laser beam through the optical fiber and forming a slit of the rotary encoder. CONSTITUTION:The light laser produced from the laser device 7 passes through the optical fiber 6, and at a fixed side detecting part 5, melts and evaporates bismuth thin film 1 vapor deposited on, for example a glass disk 2, in spot through energy of the light laser to form slits. A driving motor 13, and a laser control signal 16 are controlled by a control circuit 10, and make the glass disk 2 rotate to form a prescribed pattern of slits on the disk.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14576679A JPH0238891B2 (en) | 1979-11-10 | 1979-11-10 | ROOTARIIENKOODANOSAKUSEIHOHOOYOBISORENYORISAKUSEISARETA ROOTARIIENKOODA |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14576679A JPH0238891B2 (en) | 1979-11-10 | 1979-11-10 | ROOTARIIENKOODANOSAKUSEIHOHOOYOBISORENYORISAKUSEISARETA ROOTARIIENKOODA |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5669513A true JPS5669513A (en) | 1981-06-10 |
JPH0238891B2 JPH0238891B2 (en) | 1990-09-03 |
Family
ID=15392658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14576679A Expired - Lifetime JPH0238891B2 (en) | 1979-11-10 | 1979-11-10 | ROOTARIIENKOODANOSAKUSEIHOHOOYOBISORENYORISAKUSEISARETA ROOTARIIENKOODA |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0238891B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5819507A (en) * | 1981-07-28 | 1983-02-04 | Sumitomo Electric Ind Ltd | Manufacture of optical sensor |
EP0937964A1 (en) * | 1997-06-12 | 1999-08-25 | Fanuc Ltd | Method of fabricating graduated plate |
KR20030014764A (en) * | 2001-08-13 | 2003-02-20 | 주식회사 만도 | Turning angle sensing device |
-
1979
- 1979-11-10 JP JP14576679A patent/JPH0238891B2/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5819507A (en) * | 1981-07-28 | 1983-02-04 | Sumitomo Electric Ind Ltd | Manufacture of optical sensor |
EP0937964A1 (en) * | 1997-06-12 | 1999-08-25 | Fanuc Ltd | Method of fabricating graduated plate |
EP0937964A4 (en) * | 1997-06-12 | 2000-08-30 | Fanuc Ltd | Method of fabricating graduated plate |
KR20030014764A (en) * | 2001-08-13 | 2003-02-20 | 주식회사 만도 | Turning angle sensing device |
Also Published As
Publication number | Publication date |
---|---|
JPH0238891B2 (en) | 1990-09-03 |
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