FR2138600A1 - Reversible optical information carrier medium - of scandium -doped (in) organic (micro)crystals, for long-term stability - Google Patents

Reversible optical information carrier medium - of scandium -doped (in) organic (micro)crystals, for long-term stability

Info

Publication number
FR2138600A1
FR2138600A1 FR7147306A FR7147306A FR2138600A1 FR 2138600 A1 FR2138600 A1 FR 2138600A1 FR 7147306 A FR7147306 A FR 7147306A FR 7147306 A FR7147306 A FR 7147306A FR 2138600 A1 FR2138600 A1 FR 2138600A1
Authority
FR
France
Prior art keywords
doped
micro
optical information
information carrier
term stability
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
FR7147306A
Other languages
English (en)
French (fr)
Other versions
FR2138600B1 (enExample
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.)
Jenoptik AG
Original Assignee
VEB Carl Zeiss Jena GmbH
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 VEB Carl Zeiss Jena GmbH filed Critical VEB Carl Zeiss Jena GmbH
Publication of FR2138600A1 publication Critical patent/FR2138600A1/fr
Application granted granted Critical
Publication of FR2138600B1 publication Critical patent/FR2138600B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
    • G03C1/735—Organo-metallic compounds
    • 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
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/041—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using photochromic storage elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
FR7147306A 1971-05-26 1971-12-29 Reversible optical information carrier medium - of scandium -doped (in) organic (micro)crystals, for long-term stability Granted FR2138600A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15541571A DD97503A1 (enExample) 1971-05-26 1971-05-26

Publications (2)

Publication Number Publication Date
FR2138600A1 true FR2138600A1 (en) 1973-01-05
FR2138600B1 FR2138600B1 (enExample) 1973-07-13

Family

ID=5483886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7147306A Granted FR2138600A1 (en) 1971-05-26 1971-12-29 Reversible optical information carrier medium - of scandium -doped (in) organic (micro)crystals, for long-term stability

Country Status (4)

Country Link
DD (1) DD97503A1 (enExample)
DE (1) DE2210050A1 (enExample)
FR (1) FR2138600A1 (enExample)
SU (1) SU405130A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990001480A1 (de) * 1988-07-29 1990-02-22 Riedel-De Haen Aktiengesellschaft Optische datenspeicher

Also Published As

Publication number Publication date
DD97503A1 (enExample) 1973-05-14
DE2210050A1 (de) 1972-12-07
SU405130A1 (ru) 1973-10-22
FR2138600B1 (enExample) 1973-07-13

Similar Documents

Publication Publication Date Title
AU474679B2 (en) Improvements in liquid containing cells such as light valves
DK136922B (da) Beholder til optagelse af en kassette med en båndformet informationsbærer.
CA1010136A (en) Liquid crystal cell having controllable optical activity
NL7700001A (nl) Vloeibaar kristal weergavecellen.
IT1015453B (it) Dispositivo di lettura ottica di una pista diffrangente appartenen te a un supporto d informazione in forma di disco o di nastro
CH554050A (de) Optische speichereinrichtung.
CA1029130A (en) Record carrier on which information is recorded in an optical structure
DK132185C (da) Beholder til dyrkning af mikroorganismer bestaende af en skalog et lag
CA1004887A (en) Random carrier optical information storage
AU474742B2 (en) Disk-shaped record carrier on which information is recorded in the form of an optical structure
AT289917B (de) Hochtemperatur-Brennstoffelement mit festem, Zirkondioxyd enthaltenden Elektrolyten
CA951102A (en) Method and composition for stabilizing incompetent oil containing formations
FR2138600A1 (en) Reversible optical information carrier medium - of scandium -doped (in) organic (micro)crystals, for long-term stability
IT971595B (it) Strato di memorizzazione magneto ottica
IT7820210A0 (it) Dispositivo con una fotovalvola, specie con una cella a cristallo liquido, utile per indicazioni luminose.
GB1351812A (en) Information storage devices
AT339075B (de) Datenspeichereinrichtung mit magnetbandkassetten
FR2133788A3 (en) Electo-optical systems - contg di-alkoxybenzal cyclohexanone nematic crystalline liquids
JPS534058A (en) Light-responsible high polymer membranes
FR2338547A1 (fr) Couche en grenat ferrimagnetique, utilisee dans les memoires magnetiques optiques
JPS5342702A (en) Write-in, erase, read-out method for optical information
HOLTZBERG et al. Research in the synthesis of rare earth compounds and a study of their magnetic optical and semiconducting properties Semiannual technical report, 30 Jan.- 31 Dec. 1970(Chemical synthesis and crystal growth of pure and doped europium chalcogenides, including magnetic moment, transport properties, and photoconductivity data)
DUNCAN Inorganic photochromic and cathodochromic recording materials(Inorganic photochromic and cathodochromic recording materials in single crystal and powder forms, considering color change properties during light or electron beam exposures)
WA Information storage in potassium iodide
CA816668A (en) Method of growing alpha-alumina single crystal ribbons

Legal Events

Date Code Title Description
ST Notification of lapse