JPS56117337A - Driving device for objective lens - Google Patents
Driving device for objective lensInfo
- Publication number
- JPS56117337A JPS56117337A JP1720880A JP1720880A JPS56117337A JP S56117337 A JPS56117337 A JP S56117337A JP 1720880 A JP1720880 A JP 1720880A JP 1720880 A JP1720880 A JP 1720880A JP S56117337 A JPS56117337 A JP S56117337A
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- tracking error
- coils
- permanent magnet
- movable member
- 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
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1720880A JPS56117337A (en) | 1980-02-16 | 1980-02-16 | Driving device for objective lens |
GB8011937A GB2052829B (en) | 1979-04-27 | 1980-04-10 | Apparatus for driving objective lens in tracking direction |
NL8002157A NL192640C (nl) | 1979-04-27 | 1980-04-14 | Inrichting voor het besturen van een objectieflens ten gebruike bij een stelsel voor het lezen van optische informatie. |
FR8008310A FR2455331B1 (fr) | 1979-04-27 | 1980-04-14 | Appareil de commande d'objectif pour la correction d'erreurs de position |
US06/139,756 US4479051A (en) | 1979-04-27 | 1980-04-14 | Apparatus for driving objective lens in tracking direction |
DE3015042A DE3015042C2 (de) | 1979-04-27 | 1980-04-18 | Verstelleinrichtung für das Beleuchtungs-Objektiv eines Wiedergabegeräts für plattenförmige, optisch lesbare, rotierende Aufzeichnungsträger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1720880A JPS56117337A (en) | 1980-02-16 | 1980-02-16 | Driving device for objective lens |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56117337A true JPS56117337A (en) | 1981-09-14 |
JPS639307B2 JPS639307B2 (ja) | 1988-02-26 |
Family
ID=11937515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1720880A Granted JPS56117337A (en) | 1979-04-27 | 1980-02-16 | Driving device for objective lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56117337A (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5898850A (ja) * | 1981-12-08 | 1983-06-11 | Sanyo Electric Co Ltd | 対物レンズ駆動装置 |
JPS5933128U (ja) * | 1982-08-26 | 1984-03-01 | パイオニア株式会社 | 光学式情報読取装置におけるピツクアツプ装置 |
US4616355A (en) * | 1983-09-26 | 1986-10-07 | Kabushiki Kaisha Toshiba | Optical head device |
US4769803A (en) * | 1985-03-13 | 1988-09-06 | Olympus Optical Co., Ltd. | Optical information recording and/or reproducing apparatus |
-
1980
- 1980-02-16 JP JP1720880A patent/JPS56117337A/ja active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5898850A (ja) * | 1981-12-08 | 1983-06-11 | Sanyo Electric Co Ltd | 対物レンズ駆動装置 |
JPS5933128U (ja) * | 1982-08-26 | 1984-03-01 | パイオニア株式会社 | 光学式情報読取装置におけるピツクアツプ装置 |
JPH0528569Y2 (ja) * | 1982-08-26 | 1993-07-22 | ||
US4616355A (en) * | 1983-09-26 | 1986-10-07 | Kabushiki Kaisha Toshiba | Optical head device |
US4769803A (en) * | 1985-03-13 | 1988-09-06 | Olympus Optical Co., Ltd. | Optical information recording and/or reproducing apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS639307B2 (ja) | 1988-02-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57103131A (en) | Biaxial driver | |
MY107051A (en) | Objective lens driving devices. | |
JPS5771532A (en) | Two axia driver | |
JPS57178233A (en) | Supporting structure of optical system | |
JPS57120240A (en) | Optical disk player | |
JPS5720927A (en) | Objective lens driver | |
JPS56117337A (en) | Driving device for objective lens | |
JPS55146636A (en) | Objective lens driver | |
JPS5718037A (en) | Driving device of object lens | |
JPS57198548A (en) | Readout lens device | |
JPS54155802A (en) | Objective lens driving device | |
JPS5727442A (en) | Objective lens driving device | |
JPS57113431A (en) | Objective-lens driver | |
JPS5782234A (en) | Optical head | |
JPS57200948A (en) | Optical information reader | |
JPS5694311A (en) | Objective lens driving device | |
JPS5753186A (en) | Optical video disc player | |
JPS56148744A (en) | Objective lens driving device | |
JPS5771529A (en) | Movable lens for controlling focus | |
JPS6245298Y2 (ja) | ||
JPS56117338A (en) | Driving device for objective lens | |
JPS5771530A (en) | Pickup device | |
JP2614455B2 (ja) | 光ヘッドの対物レンズアクチュエータ | |
JPS5510236A (en) | Electromagnetic pickup cartridge | |
JPS56101110A (en) | Objective lens driving device |