JPS5646221A - Optically recording medium - Google Patents

Optically recording medium

Info

Publication number
JPS5646221A
JPS5646221A JP12013879A JP12013879A JPS5646221A JP S5646221 A JPS5646221 A JP S5646221A JP 12013879 A JP12013879 A JP 12013879A JP 12013879 A JP12013879 A JP 12013879A JP S5646221 A JPS5646221 A JP S5646221A
Authority
JP
Japan
Prior art keywords
dye
recording
resolution
substrate
formula
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.)
Granted
Application number
JP12013879A
Other languages
Japanese (ja)
Other versions
JPS6236878B2 (en
Inventor
Akira Morinaka
Yoshihiro Asano
Hiroshi Murase
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP12013879A priority Critical patent/JPS5646221A/en
Publication of JPS5646221A publication Critical patent/JPS5646221A/en
Publication of JPS6236878B2 publication Critical patent/JPS6236878B2/ja
Granted 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
    • 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
    • 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
    • G11B7/252—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
    • G11B7/2533—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 resins
    • G11B7/2535—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 resins polyesters, e.g. PET, PETG or PEN

Landscapes

  • Heat Sensitive Colour Forming Recording (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To easily obtain an optically recording medium having high sensitivity, contrast ratio, resolution and stability, capable of performing recording with semiconductor laser of longer wavelengths, and reducing a device in size by forming an org. thin film contg. a squalilium dye on a substrate. CONSTITUTION:A squalilium dye represented by formula I (where X is a chromophore), e.g. the dye of formula II is vacuum deposited on a substrate such as a polyester film, glass or Al to form a thin film of about 0.2mu thickness. This film is irradiated with light of relatively longer wavelengths (650-750nm) such as He-Ne laser beams, and the exposed part is removed by sublimation to perform recording. The resulting recording body has a high contrast ratio of readout of transmission mode and reflection mode, consumes less energy for readount, and gives >=1,000 lines/cm resolution. The used dye has sublimability at about 280 deg.C, >=300 deg.C m.p. and >=370 deg.C decompositon temp., so it is vapor depositied easily. This recording body has a enhanced S/N ratio.
JP12013879A 1979-09-20 1979-09-20 Optically recording medium Granted JPS5646221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12013879A JPS5646221A (en) 1979-09-20 1979-09-20 Optically recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12013879A JPS5646221A (en) 1979-09-20 1979-09-20 Optically recording medium

Publications (2)

Publication Number Publication Date
JPS5646221A true JPS5646221A (en) 1981-04-27
JPS6236878B2 JPS6236878B2 (en) 1987-08-10

Family

ID=14778898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12013879A Granted JPS5646221A (en) 1979-09-20 1979-09-20 Optically recording medium

Country Status (1)

Country Link
JP (1) JPS5646221A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59210546A (en) * 1983-05-09 1984-11-29 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Recording carrier
JPS63151957A (en) * 1986-12-16 1988-06-24 Fuji Xerox Co Ltd Thin organic film and its production
JPS63151956A (en) * 1986-12-16 1988-06-24 Fuji Xerox Co Ltd Method for manufacturing optical information storage medium
JPH0527436A (en) * 1990-01-12 1993-02-05 E I Du Pont De Nemours & Co Photo-polymerizable composition having sensibility to long-wavelength visible active ray
US5582774A (en) * 1988-04-01 1996-12-10 Mitsui Toatsu Chemicals, Incorporated Alkylphthalocyanine near-infrared absorbers and recording/display materials using the same
US6063467A (en) * 1997-02-24 2000-05-16 Fuji Electric Co., Ltd. Optical recording medium
US6103331A (en) * 1997-09-26 2000-08-15 Fuji Electric Co., Ltd. Optical recording medium comprising organic dye thin film
US6165580A (en) * 1997-11-11 2000-12-26 Fuji Electric Co., Ltd. Optical recording medium
WO2003035768A1 (en) * 2001-10-23 2003-05-01 Council Of Scientific And Industrial Research Squaraine based dyes and process for preparation thereof
WO2026113347A1 (en) * 2024-11-29 2026-06-04 珠海莫界科技有限公司 Red-light photoinitiating system, holographic recording medium and holographic optical element

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59210546A (en) * 1983-05-09 1984-11-29 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Recording carrier
JPS63151957A (en) * 1986-12-16 1988-06-24 Fuji Xerox Co Ltd Thin organic film and its production
JPS63151956A (en) * 1986-12-16 1988-06-24 Fuji Xerox Co Ltd Method for manufacturing optical information storage medium
US5582774A (en) * 1988-04-01 1996-12-10 Mitsui Toatsu Chemicals, Incorporated Alkylphthalocyanine near-infrared absorbers and recording/display materials using the same
JPH0527436A (en) * 1990-01-12 1993-02-05 E I Du Pont De Nemours & Co Photo-polymerizable composition having sensibility to long-wavelength visible active ray
US6063467A (en) * 1997-02-24 2000-05-16 Fuji Electric Co., Ltd. Optical recording medium
US6103331A (en) * 1997-09-26 2000-08-15 Fuji Electric Co., Ltd. Optical recording medium comprising organic dye thin film
US6165580A (en) * 1997-11-11 2000-12-26 Fuji Electric Co., Ltd. Optical recording medium
WO2003035768A1 (en) * 2001-10-23 2003-05-01 Council Of Scientific And Industrial Research Squaraine based dyes and process for preparation thereof
WO2026113347A1 (en) * 2024-11-29 2026-06-04 珠海莫界科技有限公司 Red-light photoinitiating system, holographic recording medium and holographic optical element

Also Published As

Publication number Publication date
JPS6236878B2 (en) 1987-08-10

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