JPS6115498B2 - - Google Patents
Info
- Publication number
- JPS6115498B2 JPS6115498B2 JP56008394A JP839481A JPS6115498B2 JP S6115498 B2 JPS6115498 B2 JP S6115498B2 JP 56008394 A JP56008394 A JP 56008394A JP 839481 A JP839481 A JP 839481A JP S6115498 B2 JPS6115498 B2 JP S6115498B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56008394A JPS6115498B2 (en) | 1981-01-22 | 1981-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56008394A JPS6115498B2 (en) | 1981-01-22 | 1981-01-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57123538A JPS57123538A (en) | 1982-08-02 |
| JPS6115498B2 true JPS6115498B2 (en) | 1986-04-24 |
Family
ID=11691968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56008394A Expired JPS6115498B2 (en) | 1981-01-22 | 1981-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6115498B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0345313B2 (en) * | 1986-05-01 | 1991-07-10 | Heidon Shuwaitsuaa Corp |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH059855B2 (en) * | 1983-02-18 | 1993-02-08 | Canon Kk | |
| JPH0740375B2 (en) * | 1985-11-30 | 1995-05-01 | 株式会社東芝 | Optical head |
| JPS63153732A (en) * | 1986-12-18 | 1988-06-27 | Canon Electronics Inc | Focus detector |
| WO1996004649A1 (en) * | 1994-07-29 | 1996-02-15 | Sony Corporation | Optical pickup apparatus |
-
1981
- 1981-01-22 JP JP56008394A patent/JPS6115498B2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0345313B2 (en) * | 1986-05-01 | 1991-07-10 | Heidon Shuwaitsuaa Corp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57123538A (en) | 1982-08-02 |