JPS6396620U - - Google Patents
Info
- Publication number
- JPS6396620U JPS6396620U JP19108286U JP19108286U JPS6396620U JP S6396620 U JPS6396620 U JP S6396620U JP 19108286 U JP19108286 U JP 19108286U JP 19108286 U JP19108286 U JP 19108286U JP S6396620 U JPS6396620 U JP S6396620U
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- focusing
- optical system
- disk surface
- 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 7
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Optical Head (AREA)
Description
第１図は本考案の一実施例を説明するための図
、第２図ないし第５図はそれぞれ本考案の別の実
施例を４例示す図、第６図は分布屈折率レンズの
一例である楕円形分布屈折率ロツドレンズを説明
するための図、第７図ないし第１１図は本考案の
他の５実施例を説明するための図、第１２図ない
し第１４図は本考案を光磁気デイスクの光ピツク
アツプとして実施した実施例を説明するための図
である。
１０……半導体レーザー（光源）、１２……コ
リメーシヨンレンス（分布屈折率ロツドレンズ）
、１４……導波路素子、１６……グレーテイング
カプラー、１８……１／４波長板、１００……デ
イスク面、１４２……導波路レンズビームスプリ
ツター、１５……光検知器。
Figure 1 is a diagram for explaining one embodiment of the present invention, Figures 2 to 5 are diagrams each showing four other embodiments of the present invention, and Figure 6 is an example of a distributed index lens. Figures 7 to 11 are diagrams for explaining a certain elliptically distributed refractive index rod lens, Figures 7 to 11 are diagrams for explaining five other embodiments of the present invention, and Figures 12 to 14 are diagrams for explaining the present invention using magneto-optical lenses. FIG. 3 is a diagram for explaining an embodiment implemented as an optical pickup of a disk. 10... Semiconductor laser (light source), 12... Collimation lens (gradient refractive index rod lens)
, 14... waveguide element, 16... grating coupler, 18... quarter wavelength plate, 100... disk surface, 142... waveguide lens beam splitter, 15... photodetector.
Claims (1)
の記録および／または再生を行なう光ピツクアツ
プであつて、 光源と、光源からの光をデイスク面に集光させ
るための集束光学系と、デイスク面からの反射光
により信号検知を行なう導波路素子とを有し、 上記導波路素子は、導波路層と、上記デイスク
面からの反射光を上記導波路層に結合させるため
の光結合手段と、上記反射光による信号検知を行
なう信号検知手段が、基板上に一体的に形成され
たものであり、 上記集束光学系のうち、光源からの光を集束す
るコリメーシヨンレンズが、分布屈折率レンズで
あり、 上記光源と、集束光学系と導波路素子とが一体
化され、一体化された全体がアクチユエーターに
より駆動されることを特徴とする、光ピツクアツ
プ。[Claims for Utility Model Registration] An optical pickup for recording and/or reproducing information on an optical disk or magneto-optical disk, which includes a light source and a focusing optical system for condensing the light from the light source onto the disk surface. and a waveguide element that performs signal detection using reflected light from the disk surface, and the waveguide element includes a waveguide layer and a light beam for coupling the reflected light from the disk surface to the waveguide layer. A coupling means and a signal detection means for detecting a signal based on the reflected light are integrally formed on the substrate, and in the focusing optical system, a collimation lens for focusing the light from the light source, An optical pickup, which is a distributed refractive index lens, characterized in that the light source, a focusing optical system, and a waveguide element are integrated, and the integrated whole is driven by an actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19108286U JPS6396620U (en) | 1986-12-11 | 1986-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19108286U JPS6396620U (en) | 1986-12-11 | 1986-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6396620U true JPS6396620U (en) | 1988-06-22 |
Family
ID=31144896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19108286U Pending JPS6396620U (en) | 1986-12-11 | 1986-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6396620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0254435A (en) * | 1988-08-19 | 1990-02-23 | Sanyo Electric Co Ltd | Optical information processor |
-
1986
- 1986-12-11 JP JP19108286U patent/JPS6396620U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0254435A (en) * | 1988-08-19 | 1990-02-23 | Sanyo Electric Co Ltd | Optical information processor |
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