JPH02308423A - Reproducing method for optical recording medium - Google Patents

Reproducing method for optical recording medium

Info

Publication number
JPH02308423A
JPH02308423A JP12830389A JP12830389A JPH02308423A JP H02308423 A JPH02308423 A JP H02308423A JP 12830389 A JP12830389 A JP 12830389A JP 12830389 A JP12830389 A JP 12830389A JP H02308423 A JPH02308423 A JP H02308423A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
recording
layer
information
reproducing
medium
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
JP12830389A
Inventor
Hiroshi Nakanishi
Chie Oyama
Kinichi Seki
Original Assignee
Toshiba 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

Links

Abstract

PURPOSE: To prevent the deterioration by giving energy to only the surface of a recording layer, and also, to efficiently detect its variation and to reproduce the information with high sensitivity by reproducing the information of an optical recording medium by using an evanescent wave or a surface plasma wave.
CONSTITUTION: An optical recoding medium is manufactured by forming a thin film of silver of 10nm thick as a recording layer 12 on a quartz substrate 11. To this medium, recording is executed by irradiating the layer 12 with a YAG pulse laser from the substrate side. Subsequently, an optical system consisting of a reproducing laser 13 and a detector 14 is constituted so that an incident angle θ of a reproducing light becomes an angle of plasma vibration of silver before recording, and reproduction is executed by irradiating the layer 12 with a light beam through the substrate 11 by using a continuous oscillation type semiconductor laser. In a write area and a non-write area, a clear variation is observed in the reflection factor and information can be read out.
COPYRIGHT: (C)1990,JPO&Japio
JP12830389A 1989-05-22 1989-05-22 Reproducing method for optical recording medium Pending JPH02308423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12830389A JPH02308423A (en) 1989-05-22 1989-05-22 Reproducing method for optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12830389A JPH02308423A (en) 1989-05-22 1989-05-22 Reproducing method for optical recording medium

Publications (1)

Publication Number Publication Date
JPH02308423A true true JPH02308423A (en) 1990-12-21

Family

ID=14981449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12830389A Pending JPH02308423A (en) 1989-05-22 1989-05-22 Reproducing method for optical recording medium

Country Status (1)

Country Link
JP (1) JPH02308423A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594194A2 (en) * 1992-10-23 1994-04-27 Matsushita Electric Industrial Co., Ltd. A recording and reproducing medium and a recording and reproducing apparatus
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
US6697322B2 (en) * 2000-01-26 2004-02-24 Seiko Instruments Inc. Recording medium, optical recording device utilizing recording medium, and method of manufacturing recording medium
US7099261B2 (en) 2000-07-14 2006-08-29 Matsushita Electric Industrial Co., Ltd. Light-emitting device and optical integrated device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594194A2 (en) * 1992-10-23 1994-04-27 Matsushita Electric Industrial Co., Ltd. A recording and reproducing medium and a recording and reproducing apparatus
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
EP0594194A3 (en) * 1992-10-23 1995-07-05 Matsushita Electric Ind Co Ltd A recording and reproducing medium and a recording and reproducing apparatus.
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
US5463609A (en) * 1992-10-23 1995-10-31 Matsushita Electric Industrial Co., Ltd. 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
US5582896A (en) * 1992-10-23 1996-12-10 Matsushita Electric Industrial Co., Ltd. Recording and reproducing medium and a recording and reproducing apparatus
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
US5614279A (en) * 1992-10-23 1997-03-25 Matsushita Electric Industrial Co., Ltd. Recording and reproducing medium and a recording and reproducing apparatus
US6697322B2 (en) * 2000-01-26 2004-02-24 Seiko Instruments Inc. Recording medium, optical recording device utilizing recording medium, and method of manufacturing recording medium
US7099261B2 (en) 2000-07-14 2006-08-29 Matsushita Electric Industrial Co., Ltd. Light-emitting device and optical integrated device
US7480229B2 (en) 2000-07-14 2009-01-20 Panasonic Corporation Light-emitting device and optical integrated device

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