JPS5877048A - 光磁気記録再生方式における読取装置 - Google Patents

光磁気記録再生方式における読取装置

Info

Publication number
JPS5877048A
JPS5877048A JP17400881A JP17400881A JPS5877048A JP S5877048 A JPS5877048 A JP S5877048A JP 17400881 A JP17400881 A JP 17400881A JP 17400881 A JP17400881 A JP 17400881A JP S5877048 A JPS5877048 A JP S5877048A
Authority
JP
Japan
Prior art keywords
reflectance
light
polarizing
lens
optical
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
JP17400881A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0327978B2 (en, 2012
Inventor
Masaru Otaki
賢 大滝
Hideki Hatano
秀樹 畑野
Takasumi Tajiri
田尻　敬清
Shigeru Kato
茂 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic Corp
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 by Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP17400881A priority Critical patent/JPS5877048A/ja
Publication of JPS5877048A publication Critical patent/JPS5877048A/ja
Publication of JPH0327978B2 publication Critical patent/JPH0327978B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
JP17400881A 1981-10-30 1981-10-30 光磁気記録再生方式における読取装置 Granted JPS5877048A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17400881A JPS5877048A (ja) 1981-10-30 1981-10-30 光磁気記録再生方式における読取装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17400881A JPS5877048A (ja) 1981-10-30 1981-10-30 光磁気記録再生方式における読取装置

Publications (2)

Publication Number Publication Date
JPS5877048A true JPS5877048A (ja) 1983-05-10
JPH0327978B2 JPH0327978B2 (en, 2012) 1991-04-17

Family

ID=15971026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17400881A Granted JPS5877048A (ja) 1981-10-30 1981-10-30 光磁気記録再生方式における読取装置

Country Status (1)

Country Link
JP (1) JPS5877048A (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58128037A (ja) * 1982-01-22 1983-07-30 Sharp Corp 磁気光学ヘツド
JPS59177748A (ja) * 1983-03-28 1984-10-08 Fujitsu Ltd 光磁気記録再生装置
JPS6050733A (ja) * 1983-08-31 1985-03-20 Sony Corp 光学式記録媒体及びその原盤の製造装置
JPS6063749A (ja) * 1983-09-19 1985-04-12 Olympus Optical Co Ltd 光磁気ピツクアツプ装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5744241A (en) * 1980-08-27 1982-03-12 Matsushita Electric Ind Co Ltd Magnetooptic reproducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5744241A (en) * 1980-08-27 1982-03-12 Matsushita Electric Ind Co Ltd Magnetooptic reproducer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58128037A (ja) * 1982-01-22 1983-07-30 Sharp Corp 磁気光学ヘツド
JPS59177748A (ja) * 1983-03-28 1984-10-08 Fujitsu Ltd 光磁気記録再生装置
JPS6050733A (ja) * 1983-08-31 1985-03-20 Sony Corp 光学式記録媒体及びその原盤の製造装置
JPS6063749A (ja) * 1983-09-19 1985-04-12 Olympus Optical Co Ltd 光磁気ピツクアツプ装置

Also Published As

Publication number Publication date
JPH0327978B2 (en, 2012) 1991-04-17

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