JPS6235415U - - Google Patents
Info
- Publication number
- JPS6235415U JPS6235415U JP1985122894U JP12289485U JPS6235415U JP S6235415 U JPS6235415 U JP S6235415U JP 1985122894 U JP1985122894 U JP 1985122894U JP 12289485 U JP12289485 U JP 12289485U JP S6235415 U JPS6235415 U JP S6235415U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- optical axis
- support member
- tracking
- supported
- 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.)
- Pending
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
- G11B7/095—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
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Mechanical Optical Scanning Systems (AREA)
Description
第１図は本考案による光学式ピツクアツプの補
正駆動装置の実施例を示す平面図、第２図はその
側面図、第３図はその分解斜視図、第４図以下は
従来例を示すものであり、第４図は従来の補正駆
動装置の側面図、第５図はそのコイル部分を示す
端面図、第６図は他の従来の補正駆動装置を示す
平面図、第７図はその側面図、第８図にさらに他
の従来の補正駆動装置を示す平面図、第９図はこ
の側面図である。
４０……補正駆動装置、４１……対物レンズ、
４２……レンズ支持部材、４３……トラツキンギ
ばね、４４……中間フレーム、４５……フオャカ
スばね、５１……トラツキングコイル、５４……
フオーカスコイル、５２ａ，５２ｂ，５５……磁
界を形成するマグネツト、Ｄ……光デイスク。
Fig. 1 is a plan view showing an embodiment of the optical pickup correction drive device according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is an exploded perspective view thereof, and Fig. 4 and subsequent figures show conventional examples. 4 is a side view of a conventional correction drive device, FIG. 5 is an end view showing its coil portion, FIG. 6 is a plan view showing another conventional correction drive device, and FIG. 7 is a side view thereof. , FIG. 8 is a plan view showing still another conventional correction drive device, and FIG. 9 is a side view thereof. 40... Correction drive device, 41... Objective lens,
42... Lens support member, 43... Tracking spring, 44... Intermediate frame, 45... Focus spring, 51... Tracking coil, 54...
Focus coil, 52a, 52b, 55... Magnet for forming a magnetic field, D... Optical disk.
Claims (1)
材に支持されており、このレンズ支持部材には、
対物レンズの光軸方向に電流が流れる部分を有す
るトラツキングコイルが設けられているとともに
、このレンズ支持部材はトラツキングばねによつ
て対物レンズの光軸と交叉する方向の動作自在に
支持されており、またトラツキングばねの他端が
取付けられている中間部材には、前記レンズ支持
部材の外側を囲み且つ対物レンズの光軸と直交す
る方向へ電流が流れるフオーカスコイルが設けら
れているとともに、この中間部材はフオーカスば
ねによつて対物レンズの光軸方向へ動作自在に支
持されており、さらに前記トラツキングコイルと
フオーカスコイルを横切る磁気回路が設けられて
成る光学式ピツクアツプの補正駆動装置。 An objective lens facing the recording medium is supported by a lens support member, and this lens support member includes a
A tracking coil having a portion through which a current flows in the direction of the optical axis of the objective lens is provided, and this lens support member is supported by a tracking spring so as to be movable in a direction intersecting the optical axis of the objective lens. Further, the intermediate member to which the other end of the tracking spring is attached is provided with a focus coil that surrounds the outside of the lens support member and through which a current flows in a direction perpendicular to the optical axis of the objective lens. The intermediate member is supported by a focus spring so as to be movable in the optical axis direction of the objective lens, and the intermediate member is further provided with a magnetic circuit that crosses the tracking coil and the focus coil.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985122894U JPS6235415U (en) | 1985-08-09 | 1985-08-09 | |
| KR2019860003280U KR900003881Y1 (en) | 1985-08-09 | 1986-03-19 | Correction driving device of optical pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985122894U JPS6235415U (en) | 1985-08-09 | 1985-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6235415U true JPS6235415U (en) | 1987-03-02 |
Family
ID=31013509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985122894U Pending JPS6235415U (en) | 1985-08-09 | 1985-08-09 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS6235415U (en) |
| KR (1) | KR900003881Y1 (en) |
-
1985
- 1985-08-09 JP JP1985122894U patent/JPS6235415U/ja active Pending
-
1986
- 1986-03-19 KR KR2019860003280U patent/KR900003881Y1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR900003881Y1 (en) | 1990-05-03 |
| KR870004310U (en) | 1987-07-31 |