JPS60186515U - optical pickup device - Google Patents
optical pickup deviceInfo
- Publication number
- JPS60186515U JPS60186515U JP7453584U JP7453584U JPS60186515U JP S60186515 U JPS60186515 U JP S60186515U JP 7453584 U JP7453584 U JP 7453584U JP 7453584 U JP7453584 U JP 7453584U JP S60186515 U JPS60186515 U JP S60186515U
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- optical pickup
- detection circuit
- pickup device
- housing
- 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
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例の要部回蕗構成図、第２図は
トラッキングサーボ動作を説明するため 、の図、
第３図は従来例アクチュエータ構成図、第４図は本考案
実雄側アクチュエ′−タ構成図、第５図、第一６図はサ
ーボ動作を説明するための図、第７図はアクチュエータ
可動範囲の説明図、第８図は実施例検波出力の特性図で
ある。
〔符号の説明〕３・・・筐体、７・・・モータ、１３・
・・トラッキングアクチュエータ、２１・・・同期検波
回路。Fig. 1 is a block diagram of the main parts of an embodiment of the present invention, and Fig. 2 is a diagram for explaining the tracking servo operation.
Figure 3 is a configuration diagram of a conventional actuator, Figure 4 is a configuration diagram of the actual male actuator of the present invention, Figures 5 and 16 are diagrams for explaining servo operation, and Figure 7 is an actuator movable range. FIG. 8 is a characteristic diagram of the detection output of the embodiment. [Explanation of symbols] 3... Housing, 7... Motor, 13...
...Tracking actuator, 21...Synchronous detection circuit.
Claims (2)
ピックアップの光スポツト位置を微調整制御すべ（サー
ボ信号によって電磁的に駆動されるトラッキングアクチ
ュエータと、該アクチュエータの上記筐体内での基準位
置からの変位を・検出する検出回路と、該検出回路の出
力で上記アクチュエータを上記基準位置に相対的に位置
せりめる方向に上記筐体を駆動する移動手段とを有する
光学ピックアップ装置に於て、上記基準位置へ向かって
上記・アクチュエータが復帰する信号を上記アクチュエ
ータの変位に対応して印加すべく、上記検出回路より上
記アクチュエータへ帰還ループを設けること、を特徴と
する光学ピックアップ装置。(1) It should be able to rotate or swing freely within the housing, and finely adjust the optical spot position of the optical pickup (a tracking actuator that is electromagnetically driven by a servo signal, and a reference position of the actuator within the housing). An optical pickup device comprising: a detection circuit for detecting displacement from a position; and a moving means for driving the housing in a direction to position the actuator relative to the reference position using the output of the detection circuit. and a feedback loop is provided from the detection circuit to the actuator in order to apply a signal for returning the actuator toward the reference position in response to the displacement of the actuator.
ング動作に基づく差動出力を所定の周波数で同期検波し
て位置検出を行うことを特徴とする実用新案登録請求の
範囲第１項記載の光学ピックアップ装置。(2) The optical pickup device according to claim 1, wherein the detection circuit performs position detection by synchronously detecting the differential output based on the tracking operation of the actuator at a predetermined frequency. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7453584U JPS60186515U (en) | 1984-05-23 | 1984-05-23 | optical pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7453584U JPS60186515U (en) | 1984-05-23 | 1984-05-23 | optical pickup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60186515U true JPS60186515U (en) | 1985-12-10 |
| JPH0351780Y2 JPH0351780Y2 (en) | 1991-11-07 |
Family
ID=30614927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7453584U Granted JPS60186515U (en) | 1984-05-23 | 1984-05-23 | optical pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60186515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6446233A (en) * | 1987-08-14 | 1989-02-20 | Canon Kk | Recording and reproducing device for optical information |
-
1984
- 1984-05-23 JP JP7453584U patent/JPS60186515U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6446233A (en) * | 1987-08-14 | 1989-02-20 | Canon Kk | Recording and reproducing device for optical information |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0351780Y2 (en) | 1991-11-07 |
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