JPH02149123U - - Google Patents

Info

Publication number
JPH02149123U
JPH02149123U JP5735489U JP5735489U JPH02149123U JP H02149123 U JPH02149123 U JP H02149123U JP 5735489 U JP5735489 U JP 5735489U JP 5735489 U JP5735489 U JP 5735489U JP H02149123 U JPH02149123 U JP H02149123U
Authority
JP
Japan
Prior art keywords
magneto
optical disk
light
distance
magnetic head
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.)
Granted
Application number
JP5735489U
Other languages
Japanese (ja)
Other versions
JP2524138Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989057354U priority Critical patent/JP2524138Y2/en
Publication of JPH02149123U publication Critical patent/JPH02149123U/ja
Application granted granted Critical
Publication of JP2524138Y2 publication Critical patent/JP2524138Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例による光磁気デイス
ク装置を示す略線図、第２図は発光素子及び受光
素子の配置を示す略線的斜視図、第３図は発光素
子の出力電流を示す特性曲線図、第４図はアクチ
ユエータの駆動回路を示すブロツク図、第５図は
その動作の説明に供する信号波形図、第６図は問
題点の説明に供する略線図である。 １０…光磁気デイスク装置、１２…光磁気デイ
スク、１４…磁気ヘツド、１６…発光素子、１８
…受光素子、２０…駆動回路、２２…制御回路。 FIG. 1 is a schematic diagram showing a magneto-optical disk device according to an embodiment of the present invention, FIG. 2 is a schematic perspective view showing the arrangement of a light emitting element and a light receiving element, and FIG. 3 is a diagram showing the output current of the light emitting element. FIG. 4 is a block diagram showing the actuator drive circuit, FIG. 5 is a signal waveform diagram for explaining its operation, and FIG. 6 is a schematic diagram for explaining problems. 10... magneto-optical disk device, 12... magneto-optical disk, 14... magnetic head, 16... light emitting element, 18
...Light receiving element, 20...Drive circuit, 22...Control circuit.

Claims (1)

【実用新案登録請求の範囲】 光磁気デイスクまでの距離が、磁気ヘツドと共
に変化するようになされ、上記光磁気デイスクに
光ビームを照射するようになされた発光素子と、 上記光磁気デイスクまでの距離が、上記磁気ヘ
ツドと共に変化するようになされ、上記光磁気デ
イスクで反射された上記光ビームを受光する受光
素子と、 上記磁気ヘツドから上記光磁気デイスクまでの
距離を順次減少させて上記受光素子の出力信号の
最大値を検出した後、上記最大値の分圧出力及び
上記受光素子の出力信号に基づいて、上記光磁気
デイスクまでの距離を所定値に保持するように制
御する制御回路と を具えることを特徴とする光磁気デイスク装置。[Claims for Utility Model Registration] A light-emitting element whose distance to a magneto-optical disk changes with a magnetic head and is adapted to irradiate a light beam to the magneto-optical disk; and a distance to the magneto-optical disk. a light-receiving element that changes with the magnetic head and receives the light beam reflected by the magneto-optical disk; and a control circuit that, after detecting the maximum value of the output signal, controls the distance to the magneto-optical disk to be maintained at a predetermined value based on the partial pressure output of the maximum value and the output signal of the light receiving element. A magneto-optical disk device characterized by the ability to
JP1989057354U 1989-05-18 1989-05-18 Magneto-optical disk device Expired - Fee Related JP2524138Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989057354U JP2524138Y2 (en) 1989-05-18 1989-05-18 Magneto-optical disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989057354U JP2524138Y2 (en) 1989-05-18 1989-05-18 Magneto-optical disk device

Publications (2)

Publication Number Publication Date
JPH02149123U true JPH02149123U (en) 1990-12-19
JP2524138Y2 JP2524138Y2 (en) 1997-01-29

Family

ID=31581982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989057354U Expired - Fee Related JP2524138Y2 (en) 1989-05-18 1989-05-18 Magneto-optical disk device

Country Status (1)

Country Link
JP (1) JP2524138Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63157824U (en) * 1987-04-03 1988-10-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63157824U (en) * 1987-04-03 1988-10-17

Also Published As

Publication number Publication date
JP2524138Y2 (en) 1997-01-29

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Legal Events

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LAPS Cancellation because of no payment of annual fees