JPS6212571B2 - - Google Patents
Info
- Publication number
- JPS6212571B2 JPS6212571B2 JP56097502A JP9750281A JPS6212571B2 JP S6212571 B2 JPS6212571 B2 JP S6212571B2 JP 56097502 A JP56097502 A JP 56097502A JP 9750281 A JP9750281 A JP 9750281A JP S6212571 B2 JPS6212571 B2 JP S6212571B2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- float
- optical pickup
- attached
- permanent magnet
- 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 22
- 239000004065 semiconductor Substances 0.000 description 3
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal 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
-
- 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
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56097502A JPS581837A (ja) | 1981-06-25 | 1981-06-25 | 光記録再生装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56097502A JPS581837A (ja) | 1981-06-25 | 1981-06-25 | 光記録再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS581837A JPS581837A (ja) | 1983-01-07 |
| JPS6212571B2 true JPS6212571B2 (nl) | 1987-03-19 |
Family
ID=14194032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56097502A Granted JPS581837A (ja) | 1981-06-25 | 1981-06-25 | 光記録再生装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS581837A (nl) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5852645U (ja) * | 1981-10-06 | 1983-04-09 | フオスタ−電機株式会社 | 対物レンズ駆動装置 |
| CN1006071B (zh) * | 1985-04-01 | 1989-12-13 | 中国石油化工总公司 | 用于烯烃聚合和共聚合的催化剂体系 |
| JPS63149838A (ja) * | 1986-12-12 | 1988-06-22 | Hitachi Ltd | 対物レンズ駆動装置 |
-
1981
- 1981-06-25 JP JP56097502A patent/JPS581837A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS581837A (ja) | 1983-01-07 |
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