JPS57164445A - Information recording device - Google Patents

Information recording device

Info

Publication number
JPS57164445A
JPS57164445A JP4857281A JP4857281A JPS57164445A JP S57164445 A JPS57164445 A JP S57164445A JP 4857281 A JP4857281 A JP 4857281A JP 4857281 A JP4857281 A JP 4857281A JP S57164445 A JPS57164445 A JP S57164445A
Authority
JP
Japan
Prior art keywords
mirror
recording
lens
tracking
spot
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
JP4857281A
Other languages
Japanese (ja)
Inventor
Akira Minami
Miyozo Maeda
Shigeru Arai
Itaru Shibata
Koichi Ogawa
Seiya 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 JP4857281A priority Critical patent/JPS57164445A/en
Publication of JPS57164445A publication Critical patent/JPS57164445A/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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

Abstract

PURPOSE:To easily assemble, maintain and control a device, by constituting it so that movement of a mirror is controlled by making both a reference beam and a recording beam incident to one tracking mirror 12. CONSTITUTION:A reference beam from a reference laser 2 forms a spot 5a on an optical disk medium 19 by an objective lens 13 through a lens 7, haft-mirrors 9, 11 and a tracking mirror 12. Its reflected ray goes back, passes through the half-mirror 9 and is made incident to a photodetector 15. A controlling circuit 16 controls the mirror 12 through a coil 12a in accordance with shift information detected by a wobbling method by vibrating the half-mirror 9 by a mirror driving circuit 17 and a coil 9a. A recording beam from a recording laser 3 forms a spot 6a on the medium 19 through a lens 10, the tracking mirror 12 and the lens 13, and executes recording exactly. Since the tracking mirror 12 is used in common for reference and recording use, the device is assembled, material and controller easily.
JP4857281A 1981-03-31 1981-03-31 Information recording device Pending JPS57164445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4857281A JPS57164445A (en) 1981-03-31 1981-03-31 Information recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4857281A JPS57164445A (en) 1981-03-31 1981-03-31 Information recording device

Publications (1)

Publication Number Publication Date
JPS57164445A true JPS57164445A (en) 1982-10-09

Family

ID=12807102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4857281A Pending JPS57164445A (en) 1981-03-31 1981-03-31 Information recording device

Country Status (1)

Country Link
JP (1) JPS57164445A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707596A (en) * 1985-08-23 1987-11-17 Carl-Zeiss-Stiftung Articulated optical system having an arrangement for correcting the position of a laser beam
EP0751402A1 (en) * 1995-06-28 1997-01-02 Nippon Telegraph And Telephone Corporation Light scanner
JP2014513303A (en) * 2011-05-06 2014-05-29 ネステク ソシエテ アノニム Mixer sensor and method for using the mixer sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707596A (en) * 1985-08-23 1987-11-17 Carl-Zeiss-Stiftung Articulated optical system having an arrangement for correcting the position of a laser beam
EP0751402A1 (en) * 1995-06-28 1997-01-02 Nippon Telegraph And Telephone Corporation Light scanner
JP2014513303A (en) * 2011-05-06 2014-05-29 ネステク ソシエテ アノニム Mixer sensor and method for using the mixer sensor

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