JPS63173725U - - Google Patents
Info
- Publication number
- JPS63173725U JPS63173725U JP6687587U JP6687587U JPS63173725U JP S63173725 U JPS63173725 U JP S63173725U JP 6687587 U JP6687587 U JP 6687587U JP 6687587 U JP6687587 U JP 6687587U JP S63173725 U JPS63173725 U JP S63173725U
- Authority
- JP
- Japan
- Prior art keywords
- condensing lens
- magnetic field
- magneto
- optical disk
- disk device
- 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
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図はこの考案の一実施例の要部斜視図、第
２図は第１図のものの正断面図、第３図は正断面
図、第４図および第５図はそれぞれ従来の光磁気
デイスク装置の要部正断面図である。
１……情報記録媒体、２……光ヘツド、４……
集光レンズ、５……集光レンズ保持具、１１ａ，
１１ｂ……磁界発生装置、１２ａ，１２ｂ……磁
性コア、１３ａ，１３ｂ……コイル、１５……磁
性体、１６ａ，１６ｂ……永久磁石。なお、各図
中、同一符号は同一または相当部分を示す。
Fig. 1 is a perspective view of a main part of an embodiment of this invention, Fig. 2 is a front sectional view of the one in Fig. 1, Fig. 3 is a front sectional view, and Figs. 4 and 5 are respectively conventional magneto-optical FIG. 2 is a front sectional view of the main parts of the disk device. 1... Information recording medium, 2... Optical head, 4...
Condensing lens, 5... Condensing lens holder, 11a,
11b... Magnetic field generator, 12a, 12b... Magnetic core, 13a, 13b... Coil, 15... Magnetic body, 16a, 16b... Permanent magnet. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
ンズと、この集光レンズを必要な方向に移動させ
る集光レンズ駆動装置と、情報の記録あるいは消
去時に前記光スポツトに磁界を印加する磁界発生
装置とを備えた光磁気デイスク装置において、前
記情報記録媒体に対して前記集光レンズ側でかつ
前記集光レンズを挾んで設置された前記磁界発生
装置を備えてなることを特徴とする光磁気デイス
ク装置。 (2) 情報記録媒体を挾んで、磁界発生装置と対
向する位置に磁性体を設けた実用新案登録請求の
範囲第１項記載の光磁気デイスク装置。 (3) 磁界発生装置が磁性コアとコイルからなる
実用新案登録請求の範囲第１項記載の光磁気デイ
スク装置。 (4) 磁界発生装置が回動可能に設置された永久
磁石でなる実用新案登録請求の範囲第１項記載の
光磁気デイスク装置。[Claims for Utility Model Registration] (1) A condensing lens that directs a light spot onto an information recording medium, a condensing lens drive device that moves this condensing lens in a required direction, and a condensing lens driving device that moves the condensing lens in a necessary direction, and A magneto-optical disk device comprising a magnetic field generating device for applying a magnetic field to a spot, the magnetic field generating device being installed on the condensing lens side with respect to the information recording medium and sandwiching the condensing lens. A magneto-optical disk device characterized by: (2) The magneto-optical disk device according to claim 1 of the utility model registration, wherein a magnetic material is provided at a position facing the magnetic field generator, sandwiching the information recording medium. (3) The magneto-optical disk device according to claim 1, wherein the magnetic field generating device comprises a magnetic core and a coil. (4) The magneto-optical disk device according to claim 1, wherein the magnetic field generating device is a rotatably installed permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6687587U JPS63173725U (en) | 1987-05-06 | 1987-05-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6687587U JPS63173725U (en) | 1987-05-06 | 1987-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63173725U true JPS63173725U (en) | 1988-11-11 |
Family
ID=30905271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6687587U Pending JPS63173725U (en) | 1987-05-06 | 1987-05-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63173725U (en) |
-
1987
- 1987-05-06 JP JP6687587U patent/JPS63173725U/ja active Pending