JPS5424002A - Reproducer of optical information recording medium discs - Google Patents
Reproducer of optical information recording medium discsInfo
- Publication number
- JPS5424002A JPS5424002A JP8905377A JP8905377A JPS5424002A JP S5424002 A JPS5424002 A JP S5424002A JP 8905377 A JP8905377 A JP 8905377A JP 8905377 A JP8905377 A JP 8905377A JP S5424002 A JPS5424002 A JP S5424002A
- Authority
- JP
- Japan
- Prior art keywords
- reproducer
- optical information
- recording medium
- information recording
- medium discs
- 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.)
- Granted
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
- G11B7/093—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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
- Lens Barrels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8905377A JPS5826087B2 (ja) | 1977-07-25 | 1977-07-25 | 光学的情報記録媒体円盤の再生装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8905377A JPS5826087B2 (ja) | 1977-07-25 | 1977-07-25 | 光学的情報記録媒体円盤の再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5424002A true JPS5424002A (en) | 1979-02-23 |
JPS5826087B2 JPS5826087B2 (ja) | 1983-05-31 |
Family
ID=13960116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8905377A Expired JPS5826087B2 (ja) | 1977-07-25 | 1977-07-25 | 光学的情報記録媒体円盤の再生装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5826087B2 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5494007A (en) * | 1978-01-05 | 1979-07-25 | Olympus Optical Co Ltd | Pickup for disc recorder recorded optically with information |
JPS55157137A (en) * | 1979-05-22 | 1980-12-06 | Hitachi Ltd | Reproducing pickup for information recording disc |
FR2474740A1 (fr) * | 1980-01-24 | 1981-07-31 | Thomson Csf | Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage |
JPS56169231A (en) * | 1980-05-30 | 1981-12-25 | Sankyo Seiki Mfg Co Ltd | Three-dimensional parallel driver for bobbin |
JPS57195635U (ja) * | 1981-06-09 | 1982-12-11 | ||
JPS58179948A (ja) * | 1983-03-26 | 1983-10-21 | Hitachi Ltd | 光学的走査装置 |
JPS5972658A (ja) * | 1982-09-16 | 1984-04-24 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | 放射ビ−ムを偏向又は位置調整する光学装置 |
JPS59223948A (ja) * | 1983-11-10 | 1984-12-15 | Sony Corp | 対物レンズ駆動装置 |
-
1977
- 1977-07-25 JP JP8905377A patent/JPS5826087B2/ja not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6118261B2 (ja) * | 1978-01-05 | 1986-05-12 | Olympus Optical Co | |
JPS5494007A (en) * | 1978-01-05 | 1979-07-25 | Olympus Optical Co Ltd | Pickup for disc recorder recorded optically with information |
JPS55157137A (en) * | 1979-05-22 | 1980-12-06 | Hitachi Ltd | Reproducing pickup for information recording disc |
JPS6155188B2 (ja) * | 1979-05-22 | 1986-11-26 | Hitachi Ltd | |
EP0033047A1 (fr) * | 1980-01-24 | 1981-08-05 | Thomson-Csf | Equipage mobile d'un lecteur enregistreur de vidéodisque, et lecteur enregistreur de vidéodisque comprenant un tel équipage |
FR2474740A1 (fr) * | 1980-01-24 | 1981-07-31 | Thomson Csf | Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage |
JPS56169231A (en) * | 1980-05-30 | 1981-12-25 | Sankyo Seiki Mfg Co Ltd | Three-dimensional parallel driver for bobbin |
JPS57195635U (ja) * | 1981-06-09 | 1982-12-11 | ||
JPS5972658A (ja) * | 1982-09-16 | 1984-04-24 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | 放射ビ−ムを偏向又は位置調整する光学装置 |
JPH0574133B2 (ja) * | 1982-09-16 | 1993-10-15 | Philips Nv | |
JPS58179948A (ja) * | 1983-03-26 | 1983-10-21 | Hitachi Ltd | 光学的走査装置 |
JPS59223948A (ja) * | 1983-11-10 | 1984-12-15 | Sony Corp | 対物レンズ駆動装置 |
JPH0435816B2 (ja) * | 1983-11-10 | 1992-06-12 | Sony Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS5826087B2 (ja) | 1983-05-31 |
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