JPH0121541B2 - - Google Patents
Info
- Publication number
- JPH0121541B2 JPH0121541B2 JP10844982A JP10844982A JPH0121541B2 JP H0121541 B2 JPH0121541 B2 JP H0121541B2 JP 10844982 A JP10844982 A JP 10844982A JP 10844982 A JP10844982 A JP 10844982A JP H0121541 B2 JPH0121541 B2 JP H0121541B2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- optical disk
- signal
- actuator
- 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
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical class [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005520 electrodynamics Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
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
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10844982A JPS592237A (ja) | 1982-06-25 | 1982-06-25 | 光デイスク用アクチユエ−タ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10844982A JPS592237A (ja) | 1982-06-25 | 1982-06-25 | 光デイスク用アクチユエ−タ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS592237A JPS592237A (ja) | 1984-01-07 |
| JPH0121541B2 true JPH0121541B2 (en]) | 1989-04-21 |
Family
ID=14485061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10844982A Granted JPS592237A (ja) | 1982-06-25 | 1982-06-25 | 光デイスク用アクチユエ−タ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592237A (en]) |
-
1982
- 1982-06-25 JP JP10844982A patent/JPS592237A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS592237A (ja) | 1984-01-07 |
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