JPS61130027U - - Google Patents
Info
- Publication number
- JPS61130027U JPS61130027U JP1241585U JP1241585U JPS61130027U JP S61130027 U JPS61130027 U JP S61130027U JP 1241585 U JP1241585 U JP 1241585U JP 1241585 U JP1241585 U JP 1241585U JP S61130027 U JPS61130027 U JP S61130027U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- actuator
- tracking
- slide shaft
- 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
- 238000010586 diagram Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の光学系を示す略線的側断面図
、第２図は第１図の光学系の平面図、第３図は第
２図に示すアクチユエータの取付方法を説明する
に供する一部側断面図、第４図は本考案のアクチ
ユエータに巻回したコイルを示す斜視図、第５図
はアクチエータの動きを説明する模式図、第６図
は本考案の回路図である。
図に於て、１は対物レンズ、２はアクチユエー
タ、３はスライド軸、４はレーザ源、５はコリメ
ータレンズ、６はビームスプリツタ、８はフオト
デテクタ、９は軸受部、１１は固定部、１２はサ
スペンシヨンワイヤ、１３はフオーカス用コイル
、１４−１，１４−２，１４−３，１４−４は水
平移動用コイル、１５はマグネツト、１６はヨー
クを夫々示す。
Fig. 1 is a schematic side sectional view showing the optical system of the present invention, Fig. 2 is a plan view of the optical system shown in Fig. 1, and Fig. 3 is used to explain how to attach the actuator shown in Fig. 2. FIG. 4 is a perspective view showing a coil wound around the actuator of the present invention, FIG. 5 is a schematic diagram illustrating the movement of the actuator, and FIG. 6 is a circuit diagram of the present invention. In the figure, 1 is an objective lens, 2 is an actuator, 3 is a slide shaft, 4 is a laser source, 5 is a collimator lens, 6 is a beam splitter, 8 is a photodetector, 9 is a bearing part, 11 is a fixed part, 12 13 is a suspension wire, 13 is a focus coil, 14-1, 14-2, 14-3, 14-4 are horizontal movement coils, 15 is a magnet, and 16 is a yoke.
Claims (1)
ズを３方向に移動してフオーカス、トラツキング
於びタンジエンシヤルサーボを行うようになした
光ピツクアツプに於て、対物レンズのアクチユエ
ータの上記対物レンズの取付位置よりずれた位置
で上記対物レンズのフオーカス方向に移動し得る
様に上記アクチユエータを保持するスライド軸に
枢着しこアクチユエータと、該アクチユエータを
該スライド軸の回りに回動させる手段と、上記対
物レンズとスライド軸との中心を結ぶ線方向に上
記スライド軸を動かす手段とによりトラツキング
及びタンジエンシヤル方向に上記対物レンズを駆
動するようにしてなることを特徴とする光ピツク
アツプ。 ２ 前記トラツキング及びタンジエンシヤル用コ
イルを兼用して前記アクチユエータに巻回してな
ることを特徴とする実用新案登録請求の範囲第１
項記載の光ピツクアツプ。[Claims for Utility Model Registration] 1. An objective lens in an optical pickup that moves an objective lens in three directions to perform focusing, tracking, and tangential servo in order to optically reproduce an optical disc. an actuator pivoted on a slide shaft holding the actuator so as to be movable in the focus direction of the objective lens at a position offset from a mounting position of the objective lens; An optical pickup characterized in that the objective lens is driven in the tracking and tangential direction by a rotating means and a means for moving the slide shaft in the direction of a line connecting the centers of the objective lens and the slide shaft. . 2. Utility model registration claim 1, characterized in that the tracking and tangential coils are wound around the actuator.
Optical pickup as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1241585U JPS61130027U (en) | 1985-01-31 | 1985-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1241585U JPS61130027U (en) | 1985-01-31 | 1985-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61130027U true JPS61130027U (en) | 1986-08-14 |
Family
ID=30495455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1241585U Pending JPS61130027U (en) | 1985-01-31 | 1985-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61130027U (en) |
-
1985
- 1985-01-31 JP JP1241585U patent/JPS61130027U/ja active Pending
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