JPH02110022U - - Google Patents
Info
- Publication number
- JPH02110022U JPH02110022U JP1846489U JP1846489U JPH02110022U JP H02110022 U JPH02110022 U JP H02110022U JP 1846489 U JP1846489 U JP 1846489U JP 1846489 U JP1846489 U JP 1846489U JP H02110022 U JPH02110022 U JP H02110022U
- Authority
- JP
- Japan
- Prior art keywords
- movement
- amount
- detecting
- radial direction
- recording device
- 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
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1846489U JPH02110022U (ko) | 1989-02-21 | 1989-02-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1846489U JPH02110022U (ko) | 1989-02-21 | 1989-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02110022U true JPH02110022U (ko) | 1990-09-03 |
Family
ID=31233143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1846489U Pending JPH02110022U (ko) | 1989-02-21 | 1989-02-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02110022U (ko) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794942A (en) * | 1980-10-13 | 1982-06-12 | Philips Nv | Reading and/or writing device |
-
1989
- 1989-02-21 JP JP1846489U patent/JPH02110022U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794942A (en) * | 1980-10-13 | 1982-06-12 | Philips Nv | Reading and/or writing device |
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