JPS6198227U - - Google Patents
Info
- Publication number
- JPS6198227U JPS6198227U JP18293584U JP18293584U JPS6198227U JP S6198227 U JPS6198227 U JP S6198227U JP 18293584 U JP18293584 U JP 18293584U JP 18293584 U JP18293584 U JP 18293584U JP S6198227 U JPS6198227 U JP S6198227U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- focus
- holding member
- tracking
- lens holding
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第1図〜第5図は本考案の実施例を示すもので
あり、第1図は光学式ピツクアツプの平面図、第
2図はその側面図、第3図は光学式ピツクアツプ
の分解斜視図、第4図はレンズ保持部材の平面図
、第5図はコイルの斜視図、第6図は従来の光学
式ピツクアツプの構造の概略を示す正面図、第7
図は第6図の右側面図である。
21…ヨーク、21a,21b…板部、22…
マグネツト、23…フオーカスばね、24…中間
部材、25…トラツキングばね、26…レンズ保
持部材、27…対物レンズ、28…フオーカスコ
イル、29…トラツキングコイル。
1 to 5 show an embodiment of the present invention, in which FIG. 1 is a plan view of an optical pickup, FIG. 2 is a side view thereof, and FIG. 3 is an exploded perspective view of the optical pickup. Fig. 4 is a plan view of the lens holding member, Fig. 5 is a perspective view of the coil, Fig. 6 is a front view schematically showing the structure of a conventional optical pickup, and Fig. 7 is a plan view of the lens holding member.
The figure is a right side view of FIG. 6. 21...Yoke, 21a, 21b...Plate part, 22...
Magnet, 23... Focus spring, 24... Intermediate member, 25... Tracking spring, 26... Lens holding member, 27... Objective lens, 28... Focus coil, 29... Tracking coil.
Claims (1)
レンズ保持部材が、板ばねによつて、記録媒体に
近接離反するフオーカスサーボ方向と、記録媒体
の記録面に沿うトラツキングサーボ方向へ微動自
在に支持されており、且つレンズ保持部材には、
レンズ保持部材をフオーカスサーボ方向へ駆動す
るフオーカスコイルと、トラツキングサーボ方向
へ駆動するトラツキングコイルとが固設されてお
り、さらに上記フオーカスコイルとトラツキング
コイルを横切る磁気回路が設けられている光学式
ピツクアツプにおいて、前記フオーカスコイルは
筒状に巻かれて、前記レンズ保持部材に1個だけ
固設されているとともに、前記トラツキングコイ
ルはフオーカスコイルの対物レンズ側の側面に密
着して設けられており、且つ前記磁気回路は対向
する2つの板部を有するヨークと、この一方の板
部に密着するマグネツトとによつて形成されてお
り、このマグネツトとこのマグネツトを支持して
いる板部は、筒状に巻かれた前記フオーカスコイ
ルの内部に介入しており、且つ他方の板部はフオ
ーカスコイルと対物レンズとの中間に介在して、
上記フオーカスコイルとトラツキングコイルを挟
んでマグネツトに対向していることを特徴とする
光学式ピツクアツプ。 The lens holding member that holds the objective lens facing the recording medium is finely movable by a leaf spring in the focus servo direction, which moves toward and away from the recording medium, and in the tracking servo direction, which moves along the recording surface of the recording medium. It is supported and the lens holding member includes:
A focus coil that drives the lens holding member in the focus servo direction and a tracking coil that drives the lens holding member in the tracking servo direction are fixedly provided, and a magnetic circuit that crosses the focus coil and the tracking coil is provided. In the optical pickup, the focus coil is wound into a cylindrical shape and only one is fixed to the lens holding member, and the tracking coil is tightly attached to the side surface of the focus coil on the objective lens side. The magnetic circuit is formed by a yoke having two opposing plate parts, and a magnet that is in close contact with one of the plate parts. The one plate part is interposed inside the cylindrically wound focus coil, and the other plate part is interposed between the focus coil and the objective lens,
An optical pickup characterized by facing a magnet with the above-mentioned focusing coil and tracking coil sandwiched therebetween.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984182935U JPH0333936Y2 (en) | 1984-11-30 | 1984-11-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984182935U JPH0333936Y2 (en) | 1984-11-30 | 1984-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6198227U true JPS6198227U (en) | 1986-06-24 |
JPH0333936Y2 JPH0333936Y2 (en) | 1991-07-18 |
Family
ID=30740459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1984182935U Expired JPH0333936Y2 (en) | 1984-11-30 | 1984-11-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0333936Y2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61139945A (en) * | 1984-12-11 | 1986-06-27 | Olympus Optical Co Ltd | Optical head |
JPS61261827A (en) * | 1985-05-16 | 1986-11-19 | Olympus Optical Co Ltd | Driving device for objective lens |
JPS6210379U (en) * | 1985-07-05 | 1987-01-22 | ||
JPH0536105A (en) * | 1991-12-10 | 1993-02-12 | Olympus Optical Co Ltd | Optical head |
JPH0676322A (en) * | 1992-08-27 | 1994-03-18 | Nec Corp | Lens actuator |
JPH06295453A (en) * | 1993-11-29 | 1994-10-21 | Olympus Optical Co Ltd | Optical head |
JPH06295454A (en) * | 1993-11-29 | 1994-10-21 | Olympus Optical Co Ltd | Optical head |
JPH0773488A (en) * | 1994-06-03 | 1995-03-17 | Olympus Optical Co Ltd | Device for driving lens |
JPH0773489A (en) * | 1994-06-03 | 1995-03-17 | Olympus Optical Co Ltd | Lens driving device |
JP2007047683A (en) * | 2005-08-12 | 2007-02-22 | Sony Corp | Lens driving device and mobil phone terminal with camera |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58118541U (en) * | 1982-02-02 | 1983-08-12 | ソニー株式会社 | optical head |
JPS5968837A (en) * | 1982-10-09 | 1984-04-18 | Akai Electric Co Ltd | Left/right/up/down shifter of objective lens for optical pickup device |
-
1984
- 1984-11-30 JP JP1984182935U patent/JPH0333936Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58118541U (en) * | 1982-02-02 | 1983-08-12 | ソニー株式会社 | optical head |
JPS5968837A (en) * | 1982-10-09 | 1984-04-18 | Akai Electric Co Ltd | Left/right/up/down shifter of objective lens for optical pickup device |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61139945A (en) * | 1984-12-11 | 1986-06-27 | Olympus Optical Co Ltd | Optical head |
JPS61261827A (en) * | 1985-05-16 | 1986-11-19 | Olympus Optical Co Ltd | Driving device for objective lens |
JPS6210379U (en) * | 1985-07-05 | 1987-01-22 | ||
JPH0536105A (en) * | 1991-12-10 | 1993-02-12 | Olympus Optical Co Ltd | Optical head |
JPH0676322A (en) * | 1992-08-27 | 1994-03-18 | Nec Corp | Lens actuator |
JPH06295453A (en) * | 1993-11-29 | 1994-10-21 | Olympus Optical Co Ltd | Optical head |
JPH06295454A (en) * | 1993-11-29 | 1994-10-21 | Olympus Optical Co Ltd | Optical head |
JPH0773488A (en) * | 1994-06-03 | 1995-03-17 | Olympus Optical Co Ltd | Device for driving lens |
JPH0773489A (en) * | 1994-06-03 | 1995-03-17 | Olympus Optical Co Ltd | Lens driving device |
JP2007047683A (en) * | 2005-08-12 | 2007-02-22 | Sony Corp | Lens driving device and mobil phone terminal with camera |
Also Published As
Publication number | Publication date |
---|---|
JPH0333936Y2 (en) | 1991-07-18 |
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