JPS6322369B2 - - Google Patents
Info
- Publication number
- JPS6322369B2 JPS6322369B2 JP57179140A JP17914082A JPS6322369B2 JP S6322369 B2 JPS6322369 B2 JP S6322369B2 JP 57179140 A JP57179140 A JP 57179140A JP 17914082 A JP17914082 A JP 17914082A JP S6322369 B2 JPS6322369 B2 JP S6322369B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- information
- signal
- photodetector
- information medium
- 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 32
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin 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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
-
- 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 |
|---|---|---|---|
| JP17914082A JPS5968830A (ja) | 1982-10-14 | 1982-10-14 | 光学情報記録再生装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17914082A JPS5968830A (ja) | 1982-10-14 | 1982-10-14 | 光学情報記録再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5968830A JPS5968830A (ja) | 1984-04-18 |
| JPS6322369B2 true JPS6322369B2 (zh) | 1988-05-11 |
Family
ID=16060672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17914082A Granted JPS5968830A (ja) | 1982-10-14 | 1982-10-14 | 光学情報記録再生装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5968830A (zh) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60143448A (ja) * | 1983-12-29 | 1985-07-29 | Sony Corp | スキユ−エラ−検出回路 |
| JPS6166236A (ja) * | 1984-09-06 | 1986-04-05 | Matsushita Electric Ind Co Ltd | 光学式記録再生装置 |
| JPH0766554B2 (ja) * | 1990-04-25 | 1995-07-19 | パイオニア株式会社 | 記録情報読取装置 |
| JPH04245034A (ja) * | 1991-01-31 | 1992-09-01 | Toshiba Corp | 光学ヘッド装置 |
| JP2009048696A (ja) * | 2007-08-20 | 2009-03-05 | Funai Electric Co Ltd | 光ピックアップ装置および光ディスク装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5262403A (en) * | 1975-11-19 | 1977-05-23 | Fuji Telecasting Co Ltd | Photoelectric reproducer |
| JPS566483A (en) * | 1979-06-27 | 1981-01-23 | Sharp Corp | Double current contraction type light emiting diode |
| JPS57179954A (en) * | 1981-04-27 | 1982-11-05 | Sony Corp | Optical type disc player |
| JPS57195340A (en) * | 1981-05-27 | 1982-12-01 | Sony Corp | Optical disk player |
-
1982
- 1982-10-14 JP JP17914082A patent/JPS5968830A/ja active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5262403A (en) * | 1975-11-19 | 1977-05-23 | Fuji Telecasting Co Ltd | Photoelectric reproducer |
| JPS566483A (en) * | 1979-06-27 | 1981-01-23 | Sharp Corp | Double current contraction type light emiting diode |
| JPS57179954A (en) * | 1981-04-27 | 1982-11-05 | Sony Corp | Optical type disc player |
| JPS57195340A (en) * | 1981-05-27 | 1982-12-01 | Sony Corp | Optical disk player |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5968830A (ja) | 1984-04-18 |
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