JPH0363137B2 - - Google Patents
Info
- Publication number
- JPH0363137B2 JPH0363137B2 JP1112683A JP1112683A JPH0363137B2 JP H0363137 B2 JPH0363137 B2 JP H0363137B2 JP 1112683 A JP1112683 A JP 1112683A JP 1112683 A JP1112683 A JP 1112683A JP H0363137 B2 JPH0363137 B2 JP H0363137B2
- Authority
- JP
- Japan
- Prior art keywords
- tracking
- lens barrel
- magnetic circuit
- support member
- optical pickup
- 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.)
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0932—Details of sprung supports
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
Landscapes
- Optical Recording Or Reproduction (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1112683A JPS59139150A (ja) | 1983-01-25 | 1983-01-25 | 光ピックアップ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1112683A JPS59139150A (ja) | 1983-01-25 | 1983-01-25 | 光ピックアップ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59139150A JPS59139150A (ja) | 1984-08-09 |
| JPH0363137B2 true JPH0363137B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-09-30 |
Family
ID=11769320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1112683A Granted JPS59139150A (ja) | 1983-01-25 | 1983-01-25 | 光ピックアップ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59139150A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1983
- 1983-01-25 JP JP1112683A patent/JPS59139150A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59139150A (ja) | 1984-08-09 |