JPS5798141A - Optical recording disk device - Google Patents

Optical recording disk device

Info

Publication number
JPS5798141A
JPS5798141A JP17298780A JP17298780A JPS5798141A JP S5798141 A JPS5798141 A JP S5798141A JP 17298780 A JP17298780 A JP 17298780A JP 17298780 A JP17298780 A JP 17298780A JP S5798141 A JPS5798141 A JP S5798141A
Authority
JP
Japan
Prior art keywords
optical recording
recording disk
arm
fitted
disk
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
JP17298780A
Other languages
Japanese (ja)
Inventor
Michiharu Abe
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP17298780A priority Critical patent/JPS5798141A/en
Publication of JPS5798141A publication Critical patent/JPS5798141A/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
    • 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
    • G11B7/0901—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 for track following only
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To write and read data on and from a disk with a curved surface by providing an optical head atop of an arm fitted in the center of the radius of curvature of an optical recording disk which has a curved surface forming part of a spherical surface. CONSTITUTION:An optical recording disk device consists of an optical recording disk 12 fitted to a rotary shaft 5 detachably, an arm 14 which is fitted rotatably in the center of the radius of curvature of the optical recording disk 12 through a fulcrum 13 and moves inward and outward on the surface of the disk 12, and an optical head 6 fitted atop of the arm 14. While tracking is per- formed through the driving of the arm 14, the optical recording disk 12 is rotated by the rotary shaft 5 at a constant speed to write and read data through the optical head 6.
JP17298780A 1980-12-08 1980-12-08 Optical recording disk device Pending JPS5798141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17298780A JPS5798141A (en) 1980-12-08 1980-12-08 Optical recording disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17298780A JPS5798141A (en) 1980-12-08 1980-12-08 Optical recording disk device

Publications (1)

Publication Number Publication Date
JPS5798141A true JPS5798141A (en) 1982-06-18

Family

ID=15952068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17298780A Pending JPS5798141A (en) 1980-12-08 1980-12-08 Optical recording disk device

Country Status (1)

Country Link
JP (1) JPS5798141A (en)

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