JPS6064424U - magneto-optical disk device - Google Patents
magneto-optical disk deviceInfo
- Publication number
- JPS6064424U JPS6064424U JP15538583U JP15538583U JPS6064424U JP S6064424 U JPS6064424 U JP S6064424U JP 15538583 U JP15538583 U JP 15538583U JP 15538583 U JP15538583 U JP 15538583U JP S6064424 U JPS6064424 U JP S6064424U
- Authority
- JP
- Japan
- Prior art keywords
- magneto
- reflected light
- disk device
- optical disk
- recording medium
- 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
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図は従来の光磁気ディスク装置の構成図、第２図は
本発明の一実施例にお゛ける構成図、第３図は１７２波
長板の動作を説明する為の図、第４図は偏光ビームスプ
リッタの入射光の偏波面の説明図である。
。
−主な図番の説明、３２・・・偏光ビームスプリッタ
５−（偏光素子）、２８・・・ハーフミラ−（光学部品
）、３０・・・１７２波長板。
゛ −第４−
づ□
ＳｆＬ分Fig. 1 is a block diagram of a conventional magneto-optical disk device, Fig. 2 is a block diagram of an embodiment of the present invention, Fig. 3 is a diagram for explaining the operation of a 172-wave plate, and Fig. 4 FIG. 2 is an explanatory diagram of the plane of polarization of incident light on a polarizing beam splitter.
. - Explanation of main figure numbers, 32...Polarizing beam splitter
5- (polarizing element), 28...half mirror (optical component), 30...172 wavelength plate.゛ -4th- zu□ SfL minute
Claims (1)
媒体からの反射光により前記記録媒体上に記録された情
報を光学的に碑取る光磁気ディスク装置において、前記
反射光を２つの偏光成分に分離して夫々対応する光検出
器に供給する偏光素子と、該偏光素子の入射面又は前記
偏光素子に前記反射光を導入する光学部品の前記反射光
のみが透過する面に貼付される１７２波長板とを備え、
該１／２波長板により前記反射光の偏波面を回転せしめ
て前記２つの偏光成分を夫々略等しく含ませる霊とを特
徴とする光磁気ディスク装置。In a magneto-optical disk device that irradiates a magneto-optical recording medium with light from a laser light source and optically records information recorded on the recording medium using reflected light from the recording medium, the reflected light is divided into two polarized lights. A polarizing element that separates the components and supplies them to the corresponding photodetectors, and is attached to an incident surface of the polarizing element or a surface through which only the reflected light passes through an optical component that introduces the reflected light to the polarizing element. Equipped with a 172 wavelength plate,
A magneto-optical disk device characterized in that the half-wave plate rotates the plane of polarization of the reflected light so that the two polarization components are contained substantially equally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15538583U JPS6064424U (en) | 1983-10-05 | 1983-10-05 | magneto-optical disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15538583U JPS6064424U (en) | 1983-10-05 | 1983-10-05 | magneto-optical disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6064424U true JPS6064424U (en) | 1985-05-07 |
Family
ID=30343198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15538583U Pending JPS6064424U (en) | 1983-10-05 | 1983-10-05 | magneto-optical disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6064424U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5619176A (en) * | 1979-07-25 | 1981-02-23 | Mitsubishi Electric Corp | Optical information reader |
| JPS5956239A (en) * | 1982-09-22 | 1984-03-31 | Canon Inc | Optical head |
-
1983
- 1983-10-05 JP JP15538583U patent/JPS6064424U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5619176A (en) * | 1979-07-25 | 1981-02-23 | Mitsubishi Electric Corp | Optical information reader |
| JPS5956239A (en) * | 1982-09-22 | 1984-03-31 | Canon Inc | Optical head |
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