JPS60116617U - optical pickup device - Google Patents
optical pickup deviceInfo
- Publication number
- JPS60116617U JPS60116617U JP20264183U JP20264183U JPS60116617U JP S60116617 U JPS60116617 U JP S60116617U JP 20264183 U JP20264183 U JP 20264183U JP 20264183 U JP20264183 U JP 20264183U JP S60116617 U JPS60116617 U JP S60116617U
- Authority
- JP
- Japan
- Prior art keywords
- reflecting surface
- objective lens
- reflected
- optical disk
- axis
- 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
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図は従来の光学ピックアップ装置の一例を示す概略
図であり、第２図は上記光学ピックアップ装置に用いら
れるフィトディテクタのパターン面を示す模式図である
。第３図は本考案の一実施例を示す側断面図であり、第
４図は本考案に用いられる取付は基板を示す平面図であ
り、第５図は第３図のＡ−Ａ断面図であり、第６図はダ
ンパホ 、ルダ部分を示す平面図である。
１１・・・半導体レーザ、１７・・・フォトディテクタ
、１９・・・ピックアップ本体、２０・・・対物レンズ
、２３・・・対物レンズ保持体、２４・・・軸、５６・
・・第１の反射面、５８・・・第２の反射面。FIG. 1 is a schematic diagram showing an example of a conventional optical pickup device, and FIG. 2 is a schematic diagram showing a pattern surface of a phytodetector used in the optical pickup device. FIG. 3 is a side sectional view showing one embodiment of the present invention, FIG. 4 is a plan view showing the mounting board used in the present invention, and FIG. 5 is a sectional view taken along line AA in FIG. 3. FIG. 6 is a plan view showing the damper and rudder portions. DESCRIPTION OF SYMBOLS 11... Semiconductor laser, 17... Photodetector, 19... Pickup main body, 20... Objective lens, 23... Objective lens holder, 24... Shaft, 56...
...first reflective surface, 58...second reflective surface.
Claims (1)
ックの接線により分割された２分割ディテクタと、上記
ピックアップ本体上において軸を介して回動自在に取付
けられた対物レンズ保持体と、この対物レンズ保持体の
上記軸より離れた位置に取付けられた対物レンズと、こ
の対物レンズ′ の光軸を含む下部に所定角度傾斜して
配された第１の反射面を設けるとともに上記軸の軸心を
含む位置に上記第１の反射面の傾斜角度と同じ傾斜角゛
度を有する第２の反射面を設け、ビーム放射源か
ら出射されたビームの光軸を上記軸に合わせ、上記ビー
ム放射源からのビームを上記第２の反射面にて反射させ
、さらに上記第１の反射面にて反射させて上記対物レン
ズに導き、光学ディスクよりの戻りのビームを上記第１
の反射面にて反射させ、さらに上記第２の反射面にて反
射させた後上記２分割ディテクタに導き、この２分割≠
イテクタの出力の差に応じて上記対物レンズ保持体の回
動を制御するようになした光学ピックアップ装置。a two-part detector provided on the pickup body and divided by a tangent to a recording track of an optical disk; an objective lens holder rotatably mounted on the pickup body via a shaft; An objective lens is installed at a position away from the above-mentioned axis, and a first reflecting surface is provided at a lower part of the objective lens that includes the optical axis and is inclined at a predetermined angle. A second reflecting surface having the same inclination angle as the first reflecting surface is provided, and the optical axis of the beam emitted from the beam radiation source is aligned with the axis, and the beam from the beam radiation source is The beam returning from the optical disk is reflected by the second reflecting surface, further reflected by the first reflecting surface, and guided to the objective lens, and the beam returning from the optical disk is reflected by the first reflecting surface.
It is reflected at the reflecting surface of
An optical pickup device configured to control the rotation of the objective lens holder according to the difference in output of the taketer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20264183U JPS60116617U (en) | 1983-12-30 | 1983-12-30 | optical pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20264183U JPS60116617U (en) | 1983-12-30 | 1983-12-30 | optical pickup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60116617U true JPS60116617U (en) | 1985-08-07 |
| JPH0119242Y2 JPH0119242Y2 (en) | 1989-06-05 |
Family
ID=30765080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20264183U Granted JPS60116617U (en) | 1983-12-30 | 1983-12-30 | optical pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116617U (en) |
-
1983
- 1983-12-30 JP JP20264183U patent/JPS60116617U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0119242Y2 (en) | 1989-06-05 |
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