JPS61130025U - - Google Patents
Info
- Publication number
- JPS61130025U JPS61130025U JP1186485U JP1186485U JPS61130025U JP S61130025 U JPS61130025 U JP S61130025U JP 1186485 U JP1186485 U JP 1186485U JP 1186485 U JP1186485 U JP 1186485U JP S61130025 U JPS61130025 U JP S61130025U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- objective lens
- output side
- focus servo
- current
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1186485U JPS61130025U (enExample) | 1985-01-29 | 1985-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1186485U JPS61130025U (enExample) | 1985-01-29 | 1985-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61130025U true JPS61130025U (enExample) | 1986-08-14 |
Family
ID=30494384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1186485U Pending JPS61130025U (enExample) | 1985-01-29 | 1985-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61130025U (enExample) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53129604A (en) * | 1977-04-18 | 1978-11-11 | Matsushita Electric Ind Co Ltd | Optical recorder-reproducer |
| JPS5760568A (en) * | 1980-09-29 | 1982-04-12 | Sony Corp | Controller for pickup |
-
1985
- 1985-01-29 JP JP1186485U patent/JPS61130025U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53129604A (en) * | 1977-04-18 | 1978-11-11 | Matsushita Electric Ind Co Ltd | Optical recorder-reproducer |
| JPS5760568A (en) * | 1980-09-29 | 1982-04-12 | Sony Corp | Controller for pickup |