JPS6311724U - - Google Patents
Info
- Publication number
- JPS6311724U JPS6311724U JP10445586U JP10445586U JPS6311724U JP S6311724 U JPS6311724 U JP S6311724U JP 10445586 U JP10445586 U JP 10445586U JP 10445586 U JP10445586 U JP 10445586U JP S6311724 U JPS6311724 U JP S6311724U
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- optical
- beam splitter
- semiconductor laser
- polarizing beam
- 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 8
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案に係る光ピツクアツプ装置の実
施例を示す斜視図、第２図は同上実施例に適用可
能な偏光ビームスプリツタの揺動位置検出装置の
例を示す側面図、第３図は従来の光ピツクアツプ
装置の例を示す斜視図である。
２１……半導体レーザ、２３……偏光ビームス
プリツタ、２７……光情報記録媒体。
FIG. 1 is a perspective view showing an embodiment of an optical pickup device according to the present invention, FIG. 2 is a side view showing an example of a swing position detection device for a polarizing beam splitter applicable to the above embodiment, and FIG. 1 is a perspective view showing an example of a conventional optical pickup device. 21... Semiconductor laser, 23... Polarizing beam splitter, 27... Optical information recording medium.
Claims (1)
体に微小なスポツトとして集光させて上記記録媒
体に情報信号を書き込み、あるいは上記光スポツ
トの反射光を受光して記録情報信号を読み取るよ
うにした光ピツクアツプ装置において、記録媒体
への照射光と記録媒体からの反射光とを分離する
ために半導体レーザから記録媒体に至る光路中に
配置された偏光ビームスプリツタを、記録媒体の
記録トラツク方向に垂直な面内で揺動可能とし、
この偏光ビームスプリツタの揺動位置を制御する
ことによりトラツキング制御を行うようにした光
ピツクアツプ装置。 An optical pickup that focuses a laser beam from a semiconductor laser onto an optical information recording medium as a minute spot to write an information signal on the recording medium, or reads the recorded information signal by receiving reflected light from the optical spot. In the device, a polarizing beam splitter is placed in the optical path from the semiconductor laser to the recording medium in order to separate the light irradiated onto the recording medium and the light reflected from the recording medium. It is possible to swing within the plane,
An optical pickup device that performs tracking control by controlling the swinging position of this polarizing beam splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10445586U JPS6311724U (en) | 1986-07-08 | 1986-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10445586U JPS6311724U (en) | 1986-07-08 | 1986-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6311724U true JPS6311724U (en) | 1988-01-26 |
Family
ID=30977970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10445586U Pending JPS6311724U (en) | 1986-07-08 | 1986-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6311724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2009075024A1 (en) * | 2007-12-11 | 2011-04-28 | 富士通株式会社 | Hologram recording device |
-
1986
- 1986-07-08 JP JP10445586U patent/JPS6311724U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2009075024A1 (en) * | 2007-12-11 | 2011-04-28 | 富士通株式会社 | Hologram recording device |