JPS5480708A - Movable lens device for optical information recording medium disc reproducer - Google Patents
Movable lens device for optical information recording medium disc reproducerInfo
- Publication number
- JPS5480708A JPS5480708A JP14807977A JP14807977A JPS5480708A JP S5480708 A JPS5480708 A JP S5480708A JP 14807977 A JP14807977 A JP 14807977A JP 14807977 A JP14807977 A JP 14807977A JP S5480708 A JPS5480708 A JP S5480708A
- Authority
- JP
- Japan
- Prior art keywords
- coils
- lens
- errors
- recording medium
- information recording
- 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
- G11B7/081—Disposition or mounting of heads or light sources relatively to record carriers for time base error correction by moving the light beam
-
- 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
- G11B7/0929—Electromechanical actuators for lens positioning for tracking only
-
- 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
- G11B7/0932—Details of sprung supports
Landscapes
- Lens Barrels (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52148079A JPS5826088B2 (ja) | 1977-12-12 | 1977-12-12 | 光学的情報記録媒体円盤再生装置における可動レンズ装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52148079A JPS5826088B2 (ja) | 1977-12-12 | 1977-12-12 | 光学的情報記録媒体円盤再生装置における可動レンズ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5480708A true JPS5480708A (en) | 1979-06-27 |
JPS5826088B2 JPS5826088B2 (ja) | 1983-05-31 |
Family
ID=15444745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52148079A Expired JPS5826088B2 (ja) | 1977-12-12 | 1977-12-12 | 光学的情報記録媒体円盤再生装置における可動レンズ装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5826088B2 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50115842A (ja) * | 1974-02-13 | 1975-09-10 | ||
JPS5255423A (en) * | 1975-10-31 | 1977-05-06 | Olympus Optical Co Ltd | Information detection head of information reader |
-
1977
- 1977-12-12 JP JP52148079A patent/JPS5826088B2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50115842A (ja) * | 1974-02-13 | 1975-09-10 | ||
JPS5255423A (en) * | 1975-10-31 | 1977-05-06 | Olympus Optical Co Ltd | Information detection head of information reader |
Also Published As
Publication number | Publication date |
---|---|
JPS5826088B2 (ja) | 1983-05-31 |
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