JPH0570210B2 - - Google Patents
Info
- Publication number
- JPH0570210B2 JPH0570210B2 JP58068627A JP6862783A JPH0570210B2 JP H0570210 B2 JPH0570210 B2 JP H0570210B2 JP 58068627 A JP58068627 A JP 58068627A JP 6862783 A JP6862783 A JP 6862783A JP H0570210 B2 JPH0570210 B2 JP H0570210B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- head
- optical
- light
- tracking
- 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 - Lifetime
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
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6862783A JPS59193550A (ja) | 1983-04-19 | 1983-04-19 | 光デイスクシステムにおけるトラツク追従装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6862783A JPS59193550A (ja) | 1983-04-19 | 1983-04-19 | 光デイスクシステムにおけるトラツク追従装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59193550A JPS59193550A (ja) | 1984-11-02 |
| JPH0570210B2 true JPH0570210B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-10-04 |
Family
ID=13379171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6862783A Granted JPS59193550A (ja) | 1983-04-19 | 1983-04-19 | 光デイスクシステムにおけるトラツク追従装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59193550A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0612572B2 (ja) * | 1985-03-08 | 1994-02-16 | オリンパス光学工業株式会社 | 光学的情報記録再生装置 |
| JPS6266427A (ja) * | 1985-09-18 | 1987-03-25 | Fujitsu Ltd | 光デイスク装置のポジシヨナ駆動方式 |
| JPS637521A (ja) * | 1986-06-26 | 1988-01-13 | Asahi Optical Co Ltd | 光ピツクアツプ |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5485003A (en) * | 1977-12-20 | 1979-07-06 | Olympus Optical Co Ltd | Scanning unevenness correcting method of optical recorder-reproducer |
| JPS55153138A (en) * | 1979-05-14 | 1980-11-28 | Mitsubishi Electric Corp | Optical pickup unit |
-
1983
- 1983-04-19 JP JP6862783A patent/JPS59193550A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59193550A (ja) | 1984-11-02 |