FR2449322A1 - REFLECTIVE MEDIUM FOR LASER PYROGRAPHIC RECORDINGS AND MANUFACTURING METHOD THEREOF - Google Patents

REFLECTIVE MEDIUM FOR LASER PYROGRAPHIC RECORDINGS AND MANUFACTURING METHOD THEREOF

Info

Publication number
FR2449322A1
FR2449322A1 FR8002270A FR8002270A FR2449322A1 FR 2449322 A1 FR2449322 A1 FR 2449322A1 FR 8002270 A FR8002270 A FR 8002270A FR 8002270 A FR8002270 A FR 8002270A FR 2449322 A1 FR2449322 A1 FR 2449322A1
Authority
FR
France
Prior art keywords
laser
recordings
manufacturing
pyrographic
reflective 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.)
Granted
Application number
FR8002270A
Other languages
French (fr)
Other versions
FR2449322B1 (en
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.)
Drexler Technology Corp
Original Assignee
Drexler Technology 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 Drexler Technology Corp filed Critical Drexler Technology Corp
Publication of FR2449322A1 publication Critical patent/FR2449322A1/en
Application granted granted Critical
Publication of FR2449322B1 publication Critical patent/FR2449322B1/fr
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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/40—Chemically transforming developed images
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • 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
    • G11B7/251—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 dispersed in an organic matrix

Abstract

SUPPORT DE MEMORISATION D'INFORMATIONS POUR ENREGISTREMENT PYROGRAPHIQUE AU LASER, CARACTERISE PAR LE FAIT QU'IL CONSISTE EN UN SUBSTRAT 27 A L'ETAT DE FEUILLE POUVANT SUPPORTER DES TEMPERATURES D'AU MOINS 250C, ET EN UN REVETEMENT SUPERFICIEL REFLECHISSANT ET BRILLANT APPLIQUE SUR CE SUBSTRAT, CE REVETEMENT BRILLANT ETANT CONSTITUE PAR DES PARTICULES REFLECHISSANTES D'ARGENT REPARTIES DANS UNE MATRICE EN GELATINE, SELON DEUX COUCHES 32 ET 33, LA COUCHE 32 ETANT LA PLUS RICHE EN ARGENT ET CELLE DANS LAQUELLE UN FAISCEAU LASER 31 PEUT FORMER DES CRATERES 30.INFORMATION STORAGE MEDIA FOR PYROGRAPHIC LASER RECORDING, CHARACTERIZED BY THE FACT THAT IT CONSISTS OF A SUBSTRATE 27 IN THE STATE OF SHEET CAPABLE OF WITHSTANDING TEMPERATURES OF AT LEAST 250C, AND IN A REFLECTING AND GLOSSY SURFACE COATING THIS SUBSTRATE, THIS SHINY COATING BEING CONSTITUTED BY REFLECTING SILVER PARTICLES DISTRIBUTED IN A GELATIN MATRIX, ACCORDING TO TWO LAYERS 32 AND 33, LAYER 32 BEING THE RICHEST IN SILVER AND THAT IN WHICH A BEAM OF LASER CRAT 31 CAN FORM 30.

FR8002270A 1979-02-14 1980-02-01 REFLECTIVE MEDIUM FOR LASER PYROGRAPHIC RECORDINGS AND MANUFACTURING METHOD THEREOF Granted FR2449322A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1223579A 1979-02-14 1979-02-14

Publications (2)

Publication Number Publication Date
FR2449322A1 true FR2449322A1 (en) 1980-09-12
FR2449322B1 FR2449322B1 (en) 1982-10-08

Family

ID=21753995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8002270A Granted FR2449322A1 (en) 1979-02-14 1980-02-01 REFLECTIVE MEDIUM FOR LASER PYROGRAPHIC RECORDINGS AND MANUFACTURING METHOD THEREOF

Country Status (6)

Country Link
JP (1) JPS55108995A (en)
BE (1) BE881492A (en)
CA (1) CA1143475A (en)
DE (1) DE3002911C2 (en)
FR (1) FR2449322A1 (en)
GB (1) GB2042200B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033968A2 (en) * 1980-02-11 1981-08-19 Fuji Photo Film Co., Ltd. Method for optical recording of information in a digital system
FR2505075A1 (en) * 1981-05-01 1982-11-05 Drexler Tech OPTICAL MEDIUM REFLECTING LASER RECORDED DATA, AND METHOD OF MAKING SAME

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081461B (en) * 1980-07-21 1984-03-07 Drexler Tech Double-sided silver halide material
EP0080884A3 (en) * 1981-11-27 1984-02-01 Konishiroku Photo Industry Co. Ltd. A recording medium and a method for the production thereof
JPS58224794A (en) * 1982-06-25 1983-12-27 Konishiroku Photo Ind Co Ltd Optical information recording medium
JP2553860B2 (en) * 1987-05-08 1996-11-13 共同印刷株式会社 Optical recording member, method of manufacturing the same, and method of manufacturing optical recording card
DE102004026819A1 (en) * 2004-06-02 2006-01-26 Steag Hamatech Ag Production of a partially reflecting layer of optical data carrier, especially a compact disk or digital versatile disk, comprises applying liquid containing reflecting particles on a surface of a disk-like substrate and drying the liquid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314073A (en) * 1964-10-20 1967-04-11 Prec Instr Company Laser recorder with vaporizable film
FR1571723A (en) * 1967-07-03 1969-06-20
DE1963527A1 (en) * 1968-12-23 1970-07-02 Ibm Process for producing electrically conductive silver images and an emulsion for carrying out the process
DE2544926A1 (en) * 1974-10-07 1976-04-08 Fuji Photo Film Co Ltd IMAGE RECORDING PROCESS
DE2609992A1 (en) * 1975-03-14 1976-09-30 Fuji Photo Film Co Ltd METHOD FOR PRODUCING IMAGES
DE2739947A1 (en) * 1976-09-06 1978-03-09 Fuji Photo Film Co Ltd METHOD FOR PRODUCING MASK OR COVER IMAGES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567477A (en) * 1967-11-15 1971-03-02 Du Pont Molybdate orange pigment
US3911444A (en) * 1974-04-04 1975-10-07 Bell Telephone Labor Inc Metal film recording media for laser writing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314073A (en) * 1964-10-20 1967-04-11 Prec Instr Company Laser recorder with vaporizable film
FR1571723A (en) * 1967-07-03 1969-06-20
DE1963527A1 (en) * 1968-12-23 1970-07-02 Ibm Process for producing electrically conductive silver images and an emulsion for carrying out the process
FR2026847A1 (en) * 1968-12-23 1970-09-25 Ibm
DE2544926A1 (en) * 1974-10-07 1976-04-08 Fuji Photo Film Co Ltd IMAGE RECORDING PROCESS
DE2609992A1 (en) * 1975-03-14 1976-09-30 Fuji Photo Film Co Ltd METHOD FOR PRODUCING IMAGES
DE2739947A1 (en) * 1976-09-06 1978-03-09 Fuji Photo Film Co Ltd METHOD FOR PRODUCING MASK OR COVER IMAGES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033968A2 (en) * 1980-02-11 1981-08-19 Fuji Photo Film Co., Ltd. Method for optical recording of information in a digital system
EP0033968A3 (en) * 1980-02-11 1982-06-23 Fuji Photo Film Co., Ltd. Optical recording medium
FR2505075A1 (en) * 1981-05-01 1982-11-05 Drexler Tech OPTICAL MEDIUM REFLECTING LASER RECORDED DATA, AND METHOD OF MAKING SAME

Also Published As

Publication number Publication date
DE3002911A1 (en) 1980-09-04
JPS6326464B2 (en) 1988-05-30
CA1143475A (en) 1983-03-22
DE3002911C2 (en) 1983-12-29
GB2042200B (en) 1983-03-09
FR2449322B1 (en) 1982-10-08
BE881492A (en) 1980-08-01
JPS55108995A (en) 1980-08-21
GB2042200A (en) 1980-09-17

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Legal Events

Date Code Title Description
ST Notification of lapse