JPH01174720U - - Google Patents
Info
- Publication number
- JPH01174720U JPH01174720U JP6908288U JP6908288U JPH01174720U JP H01174720 U JPH01174720 U JP H01174720U JP 6908288 U JP6908288 U JP 6908288U JP 6908288 U JP6908288 U JP 6908288U JP H01174720 U JPH01174720 U JP H01174720U
- Authority
- JP
- Japan
- Prior art keywords
- optical element
- element system
- light source
- photodetector
- light
- 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 15
- 238000001514 detection method Methods 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Description
第１図はこの考案の実施例装置を示す構成図、
第２図は実施例装置と記録媒体との相対位置を示
す一部破砕平面図、第３図は全体移動形の従来装
置を示す構成図、第４図は部分移動形の従来装置
を示す構成図である。
１……光源（半導体レーザ）、３０……主光学
素子系、４……偏光ビームスプリツタ、６……対
物レンズ、３１……検出光学素子系、１１，１２
……光検出器、１３……信号処理部、２１……光
フアイバ、２２，２３……光コネクタ、１５，２
５……固定部、１６，２６……可動部、１９……
送り機構、２４……記録媒体（デイスク）。
FIG. 1 is a configuration diagram showing an embodiment of the device of this invention;
Fig. 2 is a partially exploded plan view showing the relative position of the embodiment device and the recording medium, Fig. 3 is a configuration diagram showing a conventional device of entirely moving type, and Fig. 4 is a configuration showing a conventional device of partially moving type. It is a diagram. 1... Light source (semiconductor laser), 30... Main optical element system, 4... Polarizing beam splitter, 6... Objective lens, 31... Detection optical element system, 11, 12
...Photodetector, 13...Signal processing unit, 21...Optical fiber, 22, 23...Optical connector, 15,2
5... Fixed part, 16, 26... Movable part, 19...
Feeding mechanism, 24... Recording medium (disk).
Claims (1)
小スポツトとして投射するビームスプリツタおよ
び対物レンズを含む主光学素子系と、前記記録媒
体で反射され前記ビームスプリツタで分離された
反射光束を光検出器に送達する検出光学素子系と
、前記光源の出射光束の制御および光検出器の出
力信号を処理する信号処理部とを有するものにお
いて、前記主光学素子系および検出光学素子系が
送り機構により駆動される可動部を形成して前記
光源、光検出器、および信号処理部を含む固定部
とは別体に形成され、可動部および固定部を連結
する複数の光フアイバにより前記光源と主光学素
子系、および前記検出光学素子系と光検出器がそ
れぞれ光学的に結合されてなることを特徴とする
光学ヘツド装置。 A main optical element system including a light source, a beam splitter that projects the emitted light beam from the light source onto a recording medium as a minute spot, and an objective lens, and a main optical element system that projects the reflected light beam reflected by the recording medium and separated by the beam splitter. The main optical element system and the detection optical element system include a detection optical element system that delivers light to a detector, and a signal processing section that controls the emitted light flux of the light source and processes the output signal of the photodetector, wherein the main optical element system and the detection optical element system are connected to a feeding mechanism. A movable part driven by the light source is formed separately from a fixed part including the light source, a photodetector, and a signal processing part, and is connected to the light source by a plurality of optical fibers connecting the movable part and the fixed part. An optical head device comprising an optical element system, and an optical detection optical element system and a photodetector, each optically coupled to the optical element system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6908288U JPH01174720U (en) | 1988-05-25 | 1988-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6908288U JPH01174720U (en) | 1988-05-25 | 1988-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01174720U true JPH01174720U (en) | 1989-12-12 |
Family
ID=31294374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6908288U Pending JPH01174720U (en) | 1988-05-25 | 1988-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01174720U (en) |
-
1988
- 1988-05-25 JP JP6908288U patent/JPH01174720U/ja active Pending
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