JPS5810229U - Optical pickup device - Google Patents
Optical pickup deviceInfo
- Publication number
- JPS5810229U JPS5810229U JP10243081U JP10243081U JPS5810229U JP S5810229 U JPS5810229 U JP S5810229U JP 10243081 U JP10243081 U JP 10243081U JP 10243081 U JP10243081 U JP 10243081U JP S5810229 U JPS5810229 U JP S5810229U
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- pickup device
- optical pickup
- reflecting mirror
- error signal
- 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
- Optical Recording Or Reproduction (AREA)
- Optical Head (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来技術による光ピツクアップ装置の構成図、
第２図ａ、 ｂ、 ｃ、 ｄは本考案による光ピ
ツクアップ装置の構成図、第３図ａ、 ｂはフォーカ
シングエラー及びトラッキングエラーの補償動作の説明
図、第４図は本考案の他の実施例を示す構成図である。
１・・・・・・半導体レーザ、２・・・・・・コリメー
タレンズ、３・・・・・・偏光ビームスプリンタ、４・
・・・・・％波長板、５・・・・・・ガルバノミラ−１
６・・・・・・対物レンズ、７・・・・・・対物レンズ
筒支持体、８・・・・・・収束レンズ、９・・・・・・
４分割光センサ、１０・・・・・・遮光板、１１・・・
・・・フォーカス会アクチュエータ、１２・・・・・・
トラッキング・アクチュエータ、１３・・・・・・ディ
スク、１４・・・・・・ディスク駆動用モータ、１５・
・・・・・楕円球面反射鏡、１６・・・・・・凹レンズ
、１７．１８・・・・・・二次元アクチュエータ。
ナ３０Figure 1 is a configuration diagram of an optical pickup device according to the prior art.
Figures 2a, b, c, and d are block diagrams of an optical pickup device according to the present invention, Figures 3a and b are explanatory diagrams of focusing error and tracking error compensation operations, and Figure 4 is another implementation of the present invention. It is a block diagram which shows an example. 1...Semiconductor laser, 2...Collimator lens, 3...Polarized beam splinter, 4...
...% Wave plate, 5... Galvano mirror 1
6... Objective lens, 7... Objective lens tube support, 8... Converging lens, 9...
4-split optical sensor, 10... light shielding plate, 11...
...Focus meeting actuator, 12...
Tracking actuator, 13...disc, 14...disc drive motor, 15...
...Ellipsoidal reflector, 16...Concave lens, 17.18...Two-dimensional actuator. Na30
Claims (1)
せ、その反射光を検出することにより、フォー力シング
カエラー信号、トラッキングエラー信号及び情報検出信
号を得る光ピツクアップ装置において、情報記録ディス
クの記録面にレーザビームの焦点を結ばせ、かつ、レー
ザビームを９０°偏向可能に固定して配置された楕円球
面反射鏡と、レーザビーム発生用の半導体レーザと、前
記楕円球面反射鏡と前記半導体レーザとの、間に配置さ
れ、フォーカシングエラー及びトラッキングエラーを補
償するために少なくとも二次元方向に移動可能に配置さ
れたレンズ系とにより構成されたことを特徴とする光ピ
ツクアップ装置。In an optical pickup device, a laser beam is focused on the recording surface of an information recording disk and the reflected light is detected to obtain a force-singing error signal, a tracking error signal, and an information detection signal. an elliptical spherical reflecting mirror fixedly arranged to focus a laser beam and deflect the laser beam by 90 degrees; a semiconductor laser for generating a laser beam; the elliptic spherical reflecting mirror and the semiconductor laser; and a lens system arranged movably in at least two dimensions to compensate for focusing errors and tracking errors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10243081U JPS5810229U (en) | 1981-07-09 | 1981-07-09 | Optical pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10243081U JPS5810229U (en) | 1981-07-09 | 1981-07-09 | Optical pickup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5810229U true JPS5810229U (en) | 1983-01-22 |
| JPH0240580Y2 JPH0240580Y2 (en) | 1990-10-30 |
Family
ID=29897070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10243081U Granted JPS5810229U (en) | 1981-07-09 | 1981-07-09 | Optical pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5810229U (en) |
-
1981
- 1981-07-09 JP JP10243081U patent/JPS5810229U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0240580Y2 (en) | 1990-10-30 |
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