New! Search for patents from more than 100 countries including Australia, Brazil, Sweden and more

JPS58102347A - Optical disk record carrier - Google Patents

Optical disk record carrier

Info

Publication number
JPS58102347A
JPS58102347A JP56200517A JP20051781A JPS58102347A JP S58102347 A JPS58102347 A JP S58102347A JP 56200517 A JP56200517 A JP 56200517A JP 20051781 A JP20051781 A JP 20051781A JP S58102347 A JPS58102347 A JP S58102347A
Authority
JP
JAPAN
Prior art keywords
pits
relief
guide grooves
signal
recording
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
JP56200517A
Inventor
Seio Watanabe
Koichi Yamada
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56200517A priority Critical patent/JPS58102347A/en
Publication of JPS58102347A publication Critical patent/JPS58102347A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085Pits

Abstract

PURPOSE:To manufacture a carrier easily, by forming relief pits and guide grooves which are one-eighth as deep as the wavelength of light in use, and recording a signal along the guide grooves, and detecting the signal from relief pits and recording pits. CONSTITUTION:In a substrate 2, relief pits 1 and guide grooves 2 which are one-eighth as deep as the wavelength of light in use are formed, and a recording medium 4 is adhered. In the manufacture of an original disk, the thickness of a photosensitive film is controlled to be lambda/8 depth and relief pits 1 and guide grooves 2 corresponding to an address signal are both recorded easily by allowing power to operate once. A desired address is found by reflected light from relief pits to modulate laser light along the guide grooves 2 by a signal, and the recording medium 4 is heated to form recording pits 5. For reading operation, different voltages are developed in areas of relief pits and guide grooves to detect both an address and a recording signal. Thus, the manufacture of the original disk is facilitated.
JP56200517A 1981-12-11 1981-12-11 Optical disk record carrier Pending JPS58102347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56200517A JPS58102347A (en) 1981-12-11 1981-12-11 Optical disk record carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56200517A JPS58102347A (en) 1981-12-11 1981-12-11 Optical disk record carrier

Publications (1)

Publication Number Publication Date
JPS58102347A true JPS58102347A (en) 1983-06-17

Family

ID=16425623

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56200517A Pending JPS58102347A (en) 1981-12-11 1981-12-11 Optical disk record carrier

Country Status (1)

Country Link
JP (1) JPS58102347A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100995A2 (en) * 1982-08-10 1984-02-22 Kabushiki Kaisha Toshiba Optical disk
EP0132137A2 (en) * 1983-07-14 1985-01-23 Matsushita Electric Industrial Co., Ltd. Disc for recording and reproducing optical information
JPS6050733A (en) * 1983-08-31 1985-03-20 Sony Corp Optical recording medium and producer of master disk of said medium
JPS60242530A (en) * 1984-05-16 1985-12-02 Matsushita Electric Ind Co Ltd Optical disk
WO1986001630A1 (en) * 1984-09-04 1986-03-13 Matsushita Electric Industrial Co., Ltd. Disk-shaped record carrier
JPS61108589A (en) * 1984-11-02 1986-05-27 Ricoh Co Ltd Optical information recording medium
US4811331A (en) * 1985-02-11 1989-03-07 Gerber Arthur M Medium for recording digital information using an array of equally spaced micromirrors
US4933925A (en) * 1985-11-07 1990-06-12 Teac Corporation Optical tracking control apparatus for controlling a tracking of a light beam which scans an information recording disc using pre-formatted guide tracks having an interrupted signal format
US4949331A (en) * 1985-06-19 1990-08-14 Hitachi, Ltd. Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus
US4985881A (en) * 1983-12-23 1991-01-15 Hitachi, Ltd. Record carrier for a magneto-optical disc memory having guide grooves of a plurality of tracks disposed with a predetermined relation to light spot diameter
US5060223A (en) * 1988-08-16 1991-10-22 Ricoh Company, Ltd. Optical type information recording medium having specified pit and guide groove shapes
US5107486A (en) * 1985-12-04 1992-04-21 Sharp Kabushiki Kaisha Optical memory device with grooves and pits in selected dimensional relationship
US5132953A (en) * 1985-06-21 1992-07-21 Olympus Optical Co., Ltd. Multi-beam optical recording/reproducing apparatus for recording/reproducing on a medium having a recording flat part with a guide groove on each side
US5144552A (en) * 1986-07-25 1992-09-01 Ricoh Company, Ltd. Optical information storage medium having grooves and pits with specific depths, respectively
EP0594193A2 (en) * 1992-10-23 1994-04-27 Matsushita Electric Industrial Co., Ltd. An information recording and reproducing device and a method using the same
US5341362A (en) * 1984-08-20 1994-08-23 Sharp Kabushiki Kaisha Optical memory device having guide tracks shaped for increasing the quality of information signals
US5517486A (en) * 1987-12-10 1996-05-14 Fuji Photo Film Co., Ltd. Information recording medium and method of recording or reproducing optical information employing the same
US5586109A (en) * 1991-08-09 1996-12-17 Sharp Kabushiki Kaisha Optical memory having narrowed track pitch
US5809005A (en) * 1984-10-02 1998-09-15 Sharp Kabushiki Kaisha Method for manufacturing a magneto-optical memory element
WO2003107333A1 (en) * 2002-05-13 2003-12-24 日本電気株式会社 Optical disc and method for reproducing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54130102A (en) * 1978-03-16 1979-10-09 Philips Nv Method of writing information* recording carrier* recorded record carrier* and information writing and reading device
JPS5567948A (en) * 1978-11-06 1980-05-22 Philips Nv Data storing optical disk type recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54130102A (en) * 1978-03-16 1979-10-09 Philips Nv Method of writing information* recording carrier* recorded record carrier* and information writing and reading device
JPS5567948A (en) * 1978-11-06 1980-05-22 Philips Nv Data storing optical disk type recording medium

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100995A2 (en) * 1982-08-10 1984-02-22 Kabushiki Kaisha Toshiba Optical disk
US4587648A (en) * 1982-08-10 1986-05-06 Tokyo Shibaura Denki Kabushiki Kaisha Optical disk
EP0132137A2 (en) * 1983-07-14 1985-01-23 Matsushita Electric Industrial Co., Ltd. Disc for recording and reproducing optical information
JPS6050733A (en) * 1983-08-31 1985-03-20 Sony Corp Optical recording medium and producer of master disk of said medium
JPH0534737B2 (en) * 1983-08-31 1993-05-24 Sony Corp
US4985881A (en) * 1983-12-23 1991-01-15 Hitachi, Ltd. Record carrier for a magneto-optical disc memory having guide grooves of a plurality of tracks disposed with a predetermined relation to light spot diameter
JPS60242530A (en) * 1984-05-16 1985-12-02 Matsushita Electric Ind Co Ltd Optical disk
US5341362A (en) * 1984-08-20 1994-08-23 Sharp Kabushiki Kaisha Optical memory device having guide tracks shaped for increasing the quality of information signals
US4744074A (en) * 1984-09-04 1988-05-10 Matsushita Electric Industrial Co., Ltd. Disk-type recording medium
WO1986001630A1 (en) * 1984-09-04 1986-03-13 Matsushita Electric Industrial Co., Ltd. Disk-shaped record carrier
US6055223A (en) * 1984-10-02 2000-04-25 Sharp Kabushiki Kaisha Optical memory apparatus
US5828649A (en) * 1984-10-02 1998-10-27 Sharp Kabushiki Kaisha Magneto-optical memory element
US5809005A (en) * 1984-10-02 1998-09-15 Sharp Kabushiki Kaisha Method for manufacturing a magneto-optical memory element
JPS61108589A (en) * 1984-11-02 1986-05-27 Ricoh Co Ltd Optical information recording medium
US4811331A (en) * 1985-02-11 1989-03-07 Gerber Arthur M Medium for recording digital information using an array of equally spaced micromirrors
US4949331A (en) * 1985-06-19 1990-08-14 Hitachi, Ltd. Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus
US5132953A (en) * 1985-06-21 1992-07-21 Olympus Optical Co., Ltd. Multi-beam optical recording/reproducing apparatus for recording/reproducing on a medium having a recording flat part with a guide groove on each side
US4933925A (en) * 1985-11-07 1990-06-12 Teac Corporation Optical tracking control apparatus for controlling a tracking of a light beam which scans an information recording disc using pre-formatted guide tracks having an interrupted signal format
US5107486A (en) * 1985-12-04 1992-04-21 Sharp Kabushiki Kaisha Optical memory device with grooves and pits in selected dimensional relationship
US5144552A (en) * 1986-07-25 1992-09-01 Ricoh Company, Ltd. Optical information storage medium having grooves and pits with specific depths, respectively
US5517486A (en) * 1987-12-10 1996-05-14 Fuji Photo Film Co., Ltd. Information recording medium and method of recording or reproducing optical information employing the same
US5060223A (en) * 1988-08-16 1991-10-22 Ricoh Company, Ltd. Optical type information recording medium having specified pit and guide groove shapes
US5586109A (en) * 1991-08-09 1996-12-17 Sharp Kabushiki Kaisha Optical memory having narrowed track pitch
US5676854A (en) * 1991-08-09 1997-10-14 Sharp Kabushiki Kaisha Optical memory having narrowed track pitch
US5602819A (en) * 1992-10-23 1997-02-11 Matsushita Electric Industrial Co., Ltd. Optical information system to detect reflection of pit depth by evanescent wave
EP0594193A3 (en) * 1992-10-23 1995-10-04 Matsushita Electric Ind Co Ltd An information recording and reproducing device and a method using the same
EP0594193A2 (en) * 1992-10-23 1994-04-27 Matsushita Electric Industrial Co., Ltd. An information recording and reproducing device and a method using the same
US5577016A (en) * 1992-10-23 1996-11-19 Matsushita Electric Industrial Co., Ltd. Recording medium having concavo-convex pits with a maximum and a minimum pit depth depending on the wavelength of a laser light
WO2003107333A1 (en) * 2002-05-13 2003-12-24 日本電気株式会社 Optical disc and method for reproducing the same
US7391708B2 (en) 2002-05-13 2008-06-24 Nec Corporation Optical disc and method for reproducing the same

Similar Documents

Publication Publication Date Title
US4566088A (en) Optical and reversible recording and reproducing apparatus
US5097464A (en) Optical recording medium and optical recording/reproducing apparatus
US5448551A (en) Optical information recording media and optical information read/write device
US4771413A (en) Optical recording and reproducing apparatus
JPS62183037A (en) Optical information recording and reproducing system
US4308545A (en) Protected optical disc
JPS5774845A (en) Optical recording disk
JPH04324133A (en) Optical recording medium and recording and/or reproducing device thereof
JPS59185048A (en) Member for recording optical information and its recording method
JPS56163536A (en) Recording medium
JPS6479953A (en) Recording system for guide groove in optical disk
JPS63255846A (en) Optical disk with guide groove
JPH04286734A (en) Optical information recording medium
JPH03263637A (en) Method for recording and reproducing magneto-optical disk and magneto-optical disk device
JPS58215735A (en) Optical disc recording method
JPS57130240A (en) Optical information recording and reproducing device and information recording medium for it
JPS58102347A (en) Optical disk record carrier
JPH01169753A (en) Optical recording medium and reproducing method therewith
JPS56145535A (en) Disc for optical recording
US4547875A (en) Optical recording and retrieving disc
JPS5625243A (en) Optical memory medium
JPS6260147A (en) Photomagnetic disk
JPH02132656A (en) Optical information recording medium and optical information recording method using it
JPS5850638A (en) Production of pregrooved original plate for optical disc
JPS5740768A (en) Photomagnetic layered recording medium