JPS5766532A - Optical recording method - Google Patents

Optical recording method

Info

Publication number
JPS5766532A
JPS5766532A JP14313480A JP14313480A JPS5766532A JP S5766532 A JPS5766532 A JP S5766532A JP 14313480 A JP14313480 A JP 14313480A JP 14313480 A JP14313480 A JP 14313480A JP S5766532 A JPS5766532 A JP S5766532A
Authority
JP
Japan
Prior art keywords
optical recording
lens
magnetic
recording
electromagnet
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
Application number
JP14313480A
Other languages
Japanese (ja)
Inventor
Nagaaki Etsuno
Seiya Ogawa
Hironori Goto
Yasuyuki Goto
Koichi Ogawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14313480A priority Critical patent/JPS5766532A/en
Publication of JPS5766532A publication Critical patent/JPS5766532A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • G11B13/045—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties combined recording by magnetic and optic means

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To achieve optical recording with a high S/N ratio by performing irradiation with light while establishing a magnetic field at the light-irradiated part of the thin-film layer of a recording medium. CONSTITUTION:An electromagnet 6 using a soft magnetic material as a magnetic core is fixed to a lens 6 along the semiarc of an objective lens 4. The tip of the magnetic core of the electromagnet 6 is bent toward the point where luminous flux transmitted through the lens 4 focuses on a recording medium 5 so that magnetic lines of force converge. ADjusting a current flowed through a coil 7 optimizes the intensity of the magnetic field. Thus, shapes of holes or recess parts of a thin-film layer for recording are put in order, thereby achieving optical recording of high quality with a high S/N ratio.
JP14313480A 1980-10-14 1980-10-14 Optical recording method Pending JPS5766532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14313480A JPS5766532A (en) 1980-10-14 1980-10-14 Optical recording method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14313480A JPS5766532A (en) 1980-10-14 1980-10-14 Optical recording method

Publications (1)

Publication Number Publication Date
JPS5766532A true JPS5766532A (en) 1982-04-22

Family

ID=15331703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14313480A Pending JPS5766532A (en) 1980-10-14 1980-10-14 Optical recording method

Country Status (1)

Country Link
JP (1) JPS5766532A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124961A (en) * 1989-12-28 1992-06-23 Fuji Xerox Co., Ltd. Floating head for use with a recording apparatus of magneto-optical memory device
US5150338A (en) * 1989-08-10 1992-09-22 Hewlett-Packard Company Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider
US5197050A (en) * 1989-10-06 1993-03-23 Fuji Xerox Co., Ltd. Flying head for a magneto-optical recording drive
EP1039458A2 (en) * 1999-03-19 2000-09-27 Fujitsu Limited Optical head and coil assembly used for the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150338A (en) * 1989-08-10 1992-09-22 Hewlett-Packard Company Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider
US5197050A (en) * 1989-10-06 1993-03-23 Fuji Xerox Co., Ltd. Flying head for a magneto-optical recording drive
US5124961A (en) * 1989-12-28 1992-06-23 Fuji Xerox Co., Ltd. Floating head for use with a recording apparatus of magneto-optical memory device
EP1039458A2 (en) * 1999-03-19 2000-09-27 Fujitsu Limited Optical head and coil assembly used for the same
EP1039458A3 (en) * 1999-03-19 2000-11-15 Fujitsu Limited Optical head and coil assembly used for the same
US6567347B1 (en) 1999-03-19 2003-05-20 Fujitsu Limited Optical head having a plurality of coil elements connected in parallel to each other
US6898157B2 (en) 1999-03-19 2005-05-24 Fujitsu Limited Optical head having a plurality of coil elements connected in parallel to each other

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