JPS6387621U - - Google Patents
Info
- Publication number
- JPS6387621U JPS6387621U JP18258786U JP18258786U JPS6387621U JP S6387621 U JPS6387621 U JP S6387621U JP 18258786 U JP18258786 U JP 18258786U JP 18258786 U JP18258786 U JP 18258786U JP S6387621 U JPS6387621 U JP S6387621U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- recording medium
- section
- pickup device
- optical pickup
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案に係る光学式ピツクアツプ装置
を示す斜視図、第２図はアクチユエータ部に磁気
回路が用いられた光学式ピツクアツプ装置が具備
された光デイスクプレーヤのデイスク装着部周辺
の概略構成を示す断面図、第３図はＭＣ型の対物
レンズ駆動方式の磁気回路の概略を示す断面図、
第４図はＭＭ型の対物レンズ駆動方式の磁気回路
の概略を示す断面図である。
１……光学式ピツクアツプ装置、２……対物レ
ンズ、３……保護カバー。
FIG. 1 is a perspective view showing an optical pickup device according to the present invention, and FIG. 2 is a schematic diagram of the area around the disk mounting section of an optical disk player equipped with an optical pickup device in which a magnetic circuit is used in the actuator section. FIG. 3 is a cross-sectional view schematically showing the magnetic circuit of the MC type objective lens driving system.
FIG. 4 is a cross-sectional view schematically showing a magnetic circuit of an MM type objective lens driving system. 1... Optical pickup device, 2... Objective lens, 3... Protective cover.
Claims (1)
物レンズに入射し、微小スポツトを形成して記録
媒体に情報を記録もしくは記録媒体に記録された
情報を再生する光学式ピツクアツプ装置において
、 対物レンズを駆動させるための磁気回路部およ
びコイル部を備えたアクチユエータ部に、高透磁
率かつ低残留磁束密度材の粉粒体が混入された樹
脂からなる保護カバーが被覆されたことを特徴と
する光学式ピツクアツプ装置。[Claims for Utility Model Registration] In an optical pickup device that records information on a recording medium or reproduces information recorded on a recording medium by making a laser beam emitted by a laser light source enter an objective lens to form a minute spot. , The actuator section, which includes a magnetic circuit section and a coil section for driving the objective lens, is covered with a protective cover made of resin mixed with powder particles of a material with high magnetic permeability and low residual magnetic flux density. Optical pick-up device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18258786U JPS6387621U (en) | 1986-11-26 | 1986-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18258786U JPS6387621U (en) | 1986-11-26 | 1986-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6387621U true JPS6387621U (en) | 1988-06-08 |
Family
ID=31128526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18258786U Pending JPS6387621U (en) | 1986-11-26 | 1986-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6387621U (en) |
-
1986
- 1986-11-26 JP JP18258786U patent/JPS6387621U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63161404U (en) | ||
| JPS60261052A (en) | Optical head for optomagnetic disc | |
| JPS6387621U (en) | ||
| JPH0132177Y2 (en) | ||
| JPS6120663Y2 (en) | ||
| JPH0332731U (en) | ||
| JPH0193617U (en) | ||
| JPH0328589U (en) | ||
| JPH07109672B2 (en) | Leakage magnetic field correction device | |
| JPS59107728U (en) | Optical pick-up device | |
| JPS6242120U (en) | ||
| JPS6452121U (en) | ||
| JPH0268322U (en) | ||
| JPS6431509U (en) | ||
| JPS63129225U (en) | ||
| JPS6257931U (en) | ||
| JPS5963829U (en) | information reproducing device | |
| JPS5933131U (en) | optical recording or reproducing device | |
| JPH032481U (en) | ||
| JPH03106533U (en) | ||
| JPH01177429U (en) | ||
| JPS6316698U (en) | ||
| JPH0454022U (en) | ||
| JPS5950062U (en) | magnetic head | |
| JPS61174026U (en) |