DE3582778D1 - Optisches aufzeichnungsmedium. - Google Patents

Optisches aufzeichnungsmedium.

Info

Publication number
DE3582778D1
DE3582778D1 DE8585113359T DE3582778T DE3582778D1 DE 3582778 D1 DE3582778 D1 DE 3582778D1 DE 8585113359 T DE8585113359 T DE 8585113359T DE 3582778 T DE3582778 T DE 3582778T DE 3582778 D1 DE3582778 D1 DE 3582778D1
Authority
DE
Germany
Prior art keywords
recording medium
optical recording
optical
medium
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.)
Expired - Lifetime
Application number
DE8585113359T
Other languages
English (en)
Inventor
Jinsei Miyazaki
Eiji Ando
Kimiaki Yoshino
Kazuhisa Morimoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP59224413A external-priority patent/JPS61116353A/ja
Priority claimed from JP22441584A external-priority patent/JPS61101559A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE3582778D1 publication Critical patent/DE3582778D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/247—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes
    • G11B7/2475—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes methine or polymethine dyes merocyanine
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2531—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising glass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/163—Radiation-chromic compound
DE8585113359T 1984-10-25 1985-10-22 Optisches aufzeichnungsmedium. Expired - Lifetime DE3582778D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59224413A JPS61116353A (ja) 1984-10-25 1984-10-25 色素被膜
JP22441584A JPS61101559A (ja) 1984-10-25 1984-10-25 ホトクロミック材料及びホトクロミック被膜

Publications (1)

Publication Number Publication Date
DE3582778D1 true DE3582778D1 (de) 1991-06-13

Family

ID=26526046

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585113359T Expired - Lifetime DE3582778D1 (de) 1984-10-25 1985-10-22 Optisches aufzeichnungsmedium.

Country Status (3)

Country Link
US (1) US4794068A (de)
EP (1) EP0179436B1 (de)
DE (1) DE3582778D1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3685470D1 (de) * 1985-10-11 1992-07-02 Sony Corp Laserinformationsaufzeichnungsmedium mit aufzeichnungsschicht.
US5192631A (en) * 1987-03-18 1993-03-09 Dai Nippon Insatsu Kabushiki Kaisha Variable electroconductivity material
US4970711A (en) * 1988-02-05 1990-11-13 Tandy Corporation Bulk eraser for optical memory media
US5079061A (en) * 1989-02-27 1992-01-07 Matsushita Electric Industrial Co., Ltd. Optical storage media
JPH02302754A (ja) * 1989-05-18 1990-12-14 Canon Inc 光情報記録媒体
GB8913417D0 (en) * 1989-06-10 1989-08-02 Emi Plc Thorn Verification device for a security system
JP2725391B2 (ja) * 1989-07-31 1998-03-11 松下電器産業株式会社 フォトクロミック材料及びフォトクロミック材料の製造方法
JP2910089B2 (ja) * 1989-09-29 1999-06-23 松下電器産業株式会社 光学記録媒体の検出方法
JP2759689B2 (ja) * 1989-11-24 1998-05-28 松下電器産業株式会社 Ｒａｍの読み出し回路
US5215868A (en) * 1990-07-06 1993-06-01 Pioneer Electronic Corporation Method for recording information via photo-recording medium
JPH0798934B2 (ja) * 1990-10-05 1995-10-25 松下電器産業株式会社 フォトクロミック材料および光学記録媒体
JP2842939B2 (ja) * 1990-10-15 1999-01-06 パイオニア株式会社 光記録媒体
JP2975761B2 (ja) * 1991-03-04 1999-11-10 松下電器産業株式会社 フォトクロミック材料及びその組成物を用いた光学記録媒体
EP0575816B1 (de) * 1992-06-12 1999-09-22 Mitsui Chemicals, Inc. Lichtabsorbierende Verbindung und optisches Aufzeichnungsmedium das diese enthält
US5699182A (en) * 1995-05-25 1997-12-16 Xytronyx, Inc. Light fatigue resistant photochromic formulations
JPWO2003010763A1 (ja) * 2001-07-23 2004-11-18 ソニー株式会社 光記録媒体の予熱バルクイレーズ装置および光記録媒体の予熱バルクイレーズ方法および光記録媒体
US7214456B2 (en) * 2004-04-29 2007-05-08 Xerox Corporation Reimageable medium
US7300727B2 (en) * 2004-04-29 2007-11-27 Xerox Corporation Method for forming temporary image
US7205088B2 (en) * 2004-04-29 2007-04-17 Xerox Corporation Reimageable medium with light absorbing material
US20070002126A1 (en) * 2005-06-29 2007-01-04 Lipinski Greg J Preheating optical disc prior to optically writing to label area of optical disc
EP1993824A4 (de) * 2006-01-10 2012-03-14 Verification Technologies Inc Datengeschütztes digitales aufzeichnungsmedium
US8216765B2 (en) * 2009-03-09 2012-07-10 Xerox Corporation Reimageable and reusable medium and method of producing and using the reimageable and reusable medium

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355293A (en) * 1964-02-26 1967-11-28 Ncr Co Conversion of benzo-indolinospiropyran image to fixed red image
DE3007296A1 (de) * 1980-02-27 1981-09-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Aufzeichnungstraeger zum einschreiben von loeschbaren informationen mittels lichtstrahlen
US4405733A (en) * 1981-08-03 1983-09-20 Xerox Corporation Composite quasi-crystalline material

Also Published As

Publication number Publication date
EP0179436A2 (de) 1986-04-30
EP0179436B1 (de) 1991-05-08
US4794068A (en) 1988-12-27
EP0179436A3 (en) 1988-07-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)