JPH0330819U - - Google Patents
Info
- Publication number
- JPH0330819U JPH0330819U JP9111289U JP9111289U JPH0330819U JP H0330819 U JPH0330819 U JP H0330819U JP 9111289 U JP9111289 U JP 9111289U JP 9111289 U JP9111289 U JP 9111289U JP H0330819 U JPH0330819 U JP H0330819U
- Authority
- JP
- Japan
- Prior art keywords
- grating
- scale
- line width
- bright line
- illumination light
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims 4
- 230000000737 periodic effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Optical Transform (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9111289U JPH073288Y2 (ja) | 1989-08-02 | 1989-08-02 | 光学式変位検出器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9111289U JPH073288Y2 (ja) | 1989-08-02 | 1989-08-02 | 光学式変位検出器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0330819U true JPH0330819U (en]) | 1991-03-26 |
JPH073288Y2 JPH073288Y2 (ja) | 1995-01-30 |
Family
ID=31640612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9111289U Expired - Fee Related JPH073288Y2 (ja) | 1989-08-02 | 1989-08-02 | 光学式変位検出器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH073288Y2 (en]) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013027805A1 (ja) * | 2011-08-23 | 2013-02-28 | 株式会社ニコン | エンコーダ装置、及び装置 |
-
1989
- 1989-08-02 JP JP9111289U patent/JPH073288Y2/ja not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013027805A1 (ja) * | 2011-08-23 | 2013-02-28 | 株式会社ニコン | エンコーダ装置、及び装置 |
JPWO2013027805A1 (ja) * | 2011-08-23 | 2015-03-19 | 株式会社ニコン | エンコーダ装置、及び装置 |
Also Published As
Publication number | Publication date |
---|---|
JPH073288Y2 (ja) | 1995-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |