GB1544185A - Radiation-sensitive material - Google Patents

Radiation-sensitive material

Info

Publication number
GB1544185A
GB1544185A GB15903/76A GB1590376A GB1544185A GB 1544185 A GB1544185 A GB 1544185A GB 15903/76 A GB15903/76 A GB 15903/76A GB 1590376 A GB1590376 A GB 1590376A GB 1544185 A GB1544185 A GB 1544185A
Authority
GB
United Kingdom
Prior art keywords
radiation
recording
information
layer
energy
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
Application number
GB15903/76A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1544185A publication Critical patent/GB1544185A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/18—Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/009—Working by laser beam, e.g. welding, cutting or boring using a non-absorbing, e.g. transparent, reflective or refractive, layer on the workpiece
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/705—Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances, e.g. photodope systems
    • 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
    • G11B7/243—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 inorganic materials only, e.g. ablative layers
    • 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
    • G11B7/243—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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • 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
    • G11B7/243—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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

The radiation-sensitive material serves for recording information by optical means. The material is decomposed thermally by an energy between 10 and 100 mJ/cm<2>. After recording, the information can be read out without further processing. The material comprises a transparent substrate with a light-impermeable As-Se layer of a thickness between 200 and 2,000 @. The radiation-sensitive layer is coated with a protective covering layer, which is not damaged by the action of recording energy. The material requires considerably lower energy densities than hitherto. A greater edge sharpness of the information track can be obtained.
GB15903/76A 1975-04-23 1976-04-20 Radiation-sensitive material Expired GB1544185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7504783A NL7504783A (en) 1975-04-23 1975-04-23 RADIATION-SENSITIVE MATERIAL.

Publications (1)

Publication Number Publication Date
GB1544185A true GB1544185A (en) 1979-04-11

Family

ID=19823637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15903/76A Expired GB1544185A (en) 1975-04-23 1976-04-20 Radiation-sensitive material

Country Status (13)

Country Link
JP (1) JPS51130201A (en)
AT (1) AT354124B (en)
AU (1) AU506563B2 (en)
BE (1) BE840968A (en)
CH (1) CH621643A5 (en)
DE (1) DE2615839A1 (en)
DK (1) DK99176A (en)
ES (1) ES447209A1 (en)
FR (1) FR2309010A1 (en)
GB (1) GB1544185A (en)
IT (1) IT1059476B (en)
NL (1) NL7504783A (en)
SE (1) SE413210B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133305A (en) * 1978-04-07 1979-10-17 Hitachi Ltd Information recorder

Also Published As

Publication number Publication date
AU506563B2 (en) 1980-01-10
FR2309010B1 (en) 1982-02-12
AU1311276A (en) 1977-10-27
SE413210B (en) 1980-04-28
ES447209A1 (en) 1977-11-01
CH621643A5 (en) 1981-02-13
ATA285776A (en) 1979-05-15
NL7504783A (en) 1976-10-26
DK99176A (en) 1976-10-24
AT354124B (en) 1979-12-27
IT1059476B (en) 1982-05-31
FR2309010A1 (en) 1976-11-19
SE7602107L (en) 1976-10-24
BE840968A (en) 1976-10-21
DE2615839A1 (en) 1976-11-04
JPS51130201A (en) 1976-11-12

Similar Documents

Publication Publication Date Title
ES451712A1 (en) Method of writing information with a modulated radiation beam onto an information storage medium and information storage medium particularly adapted to the method
ES473697A1 (en) Information-recording element having a dye-containing auxiliary layer
ES458637A1 (en) Optical scanning device
KR900010688A (en) Optical information recording media with peelable protective film
ATA938576A (en) MATERIAL FOR IMAGE RECORDING WITH LASER RAYS
JPS5220821A (en) Recording material
ATE21295T1 (en) OPTICALLY READABLE RECORDING CARRIER.
JPS5674843A (en) Photomagnetic recording medium
GB1544185A (en) Radiation-sensitive material
JPS5441117A (en) Cassette type magnetic sheet recorder-reproducer
JPS57103139A (en) Recording medium and making thereof
JPS5264905A (en) Part for recording information
JPS5441703A (en) Information recording plate
JPS52110634A (en) Information recording material
JPS5250702A (en) Optical information recording and reproduction apparatus
MY130548A (en) Optical tape duplicator
JPS5414706A (en) Information recording disc
JPS51141531A (en) Optical scanning device
JPS5374403A (en) Optical imformation recorder
JPS5237007A (en) Optical recording reproducing equipment
NL188398C (en) OPTICAL RECORD MEDIUM WITH A REGISTRATION LAYER OF A LIGHT-ABSORBING MATERIAL, IN WHICH AN INFORMATION TRACK OF OPENINGS CAN BE FORMED BY THE ABSORPTION OF A LIGHT BEAM AND AN INFORMATION RECORD CONTAINING THE OPTICAL REGISTRATION MEDIA WITH A DATA IN THE DATA.
JPS5337001A (en) Information recorder
JPS5270826A (en) Information recording method
JPS5512572A (en) Manufacture for carrier for information recording
JPS5271202A (en) Production of original disc of information recording media

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee