JPS6319937B2 - - Google Patents
Info
- Publication number
- JPS6319937B2 JPS6319937B2 JP55069423A JP6942380A JPS6319937B2 JP S6319937 B2 JPS6319937 B2 JP S6319937B2 JP 55069423 A JP55069423 A JP 55069423A JP 6942380 A JP6942380 A JP 6942380A JP S6319937 B2 JPS6319937 B2 JP S6319937B2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric bimorph
- light spot
- lens
- information track
- condenser lens
- 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
- G11B7/0937—Piezoelectric actuators
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6942380A JPS56165938A (en) | 1980-05-23 | 1980-05-23 | Optical scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6942380A JPS56165938A (en) | 1980-05-23 | 1980-05-23 | Optical scanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56165938A JPS56165938A (en) | 1981-12-19 |
| JPS6319937B2 true JPS6319937B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-04-25 |
Family
ID=13402187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6942380A Granted JPS56165938A (en) | 1980-05-23 | 1980-05-23 | Optical scanner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56165938A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5966442A (ja) * | 1982-10-07 | 1984-04-14 | Daikin Ind Ltd | フツ素ゴム組成物 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2174353A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-02-29 | 1973-10-12 | Thomson Csf | |
| JPS54146612A (en) * | 1978-05-10 | 1979-11-16 | Olympus Optical Co Ltd | Optical information read device |
-
1980
- 1980-05-23 JP JP6942380A patent/JPS56165938A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56165938A (en) | 1981-12-19 |