GB964881A - Improvements in or relating to electrostatic records - Google Patents

Improvements in or relating to electrostatic records

Info

Publication number
GB964881A
GB964881A GB2348660A GB2348660A GB964881A GB 964881 A GB964881 A GB 964881A GB 2348660 A GB2348660 A GB 2348660A GB 2348660 A GB2348660 A GB 2348660A GB 964881 A GB964881 A GB 964881A
Authority
GB
United Kingdom
Prior art keywords
layer
record
thermoplastic
melting point
heating
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
GB2348660A
Inventor
Ulrich Schmiedel
Louis Achilles Meeussen
Paul Maria Cassiers
Rene Maurice Hart
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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 to BE603891D priority Critical patent/BE603891A/xx
Priority to NL264844D priority patent/NL264844A/xx
Application filed by Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Priority to GB1745260A priority patent/GB964880A/en
Priority to GB2348660A priority patent/GB964881A/en
Priority to SE509661A priority patent/SE311180B/xx
Priority to DE19611424387 priority patent/DE1424387A1/en
Priority to FR862083A priority patent/FR1314384A/en
Publication of GB964881A publication Critical patent/GB964881A/en
Priority to SE1412764A priority patent/SE315312B/xx
Priority to US3441947D priority patent/US3441947A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/80—Television signal recording using electrostatic recording
    • H04N5/82—Television signal recording using electrostatic recording using deformable thermoplastic recording medium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/04—Exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G16/00—Electrographic processes using deformation of thermoplastic layers; Apparatus therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/022—Layers for surface-deformation imaging, e.g. frost imaging
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/07—Polymeric photoconductive materials
    • G03G5/071—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/07—Polymeric photoconductive materials
    • G03G5/071—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G5/072—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups
    • G03G5/073—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups comprising pending carbazole groups
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/07—Polymeric photoconductive materials
    • G03G5/071—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G5/072—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups
    • G03G5/0732—Polymeric photoconductive materials obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising pending monoamine groups comprising pending alkenylarylamine
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/16—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by mechanical cutting, deforming or pressing
    • G11B11/18—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by mechanical cutting, deforming or pressing with reproducing by optical means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/08—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using electrostatic charge injection; Record carriers therefor
    • 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
    • G11C13/048—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 other optical storage elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

964,881. Optical/thermoplastic record/ erase processes. GEVAERT PHOTO-PRODUCTEN N. V. May 17,1961 [May 7, 1960], No. 23486/63. Divided out of 964, 880. Heading G5R. [Also in Division H1] A thermoplastic recording process utilizing a photoconductive record tape layer,first charges the layer by corona discharge means, modulates the charge according to a pattern of electromagnetic radiation, which causes local discharging, and the layer is then developed into a permanent record by heating to the melting point, the charges causing local deformation. The layer is erased by heating it to the melting point in the presence of light. The preferred form of tape comprises a conductive base carrying a layer of polypropenylcarbazole,prepared as in Specification 964,875, ester gum and methylene chloride,the dried layer being 1¢- 2 Á thick. Other suitable materials are described in Specifications 964,871, 964,875, and 964,877 and 964,879. As compared with the previous thermoplastic recording processes (Glenn, J. Appl. Phys. 30 (1959) pp. 1870-73 is referred to) the need for any form of vacuum enclosure is eliminated. Playback is by conventional optical means.
GB2348660A 1960-05-17 1960-05-17 Improvements in or relating to electrostatic records Expired GB964881A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE603891D BE603891A (en) 1960-05-17
NL264844D NL264844A (en) 1960-05-17
GB1745260A GB964880A (en) 1960-05-17 1960-05-17 Improvements in or relating to electrostatic recording
GB2348660A GB964881A (en) 1960-05-17 1960-05-17 Improvements in or relating to electrostatic records
SE509661A SE311180B (en) 1960-05-17 1961-05-15
DE19611424387 DE1424387A1 (en) 1960-05-17 1961-05-16 Method for image or. TV picture recording
FR862083A FR1314384A (en) 1960-05-17 1961-05-17 Electrostatic recording method and equipment
SE1412764A SE315312B (en) 1960-05-17 1964-11-23
US3441947D US3441947A (en) 1960-05-17 1965-10-07 Thermoplastic recording process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1745260A GB964880A (en) 1960-05-17 1960-05-17 Improvements in or relating to electrostatic recording
GB2348660A GB964881A (en) 1960-05-17 1960-05-17 Improvements in or relating to electrostatic records

Publications (1)

Publication Number Publication Date
GB964881A true GB964881A (en) 1964-07-22

Family

ID=26252692

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1745260A Expired GB964880A (en) 1960-05-17 1960-05-17 Improvements in or relating to electrostatic recording
GB2348660A Expired GB964881A (en) 1960-05-17 1960-05-17 Improvements in or relating to electrostatic records

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1745260A Expired GB964880A (en) 1960-05-17 1960-05-17 Improvements in or relating to electrostatic recording

Country Status (7)

Country Link
US (1) US3441947A (en)
BE (1) BE603891A (en)
DE (1) DE1424387A1 (en)
FR (1) FR1314384A (en)
GB (2) GB964880A (en)
NL (1) NL264844A (en)
SE (2) SE311180B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2212968C3 (en) * 1972-03-17 1979-10-11 Hoechst Ag, 6000 Frankfurt Method for recording a deformation image

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896507A (en) * 1952-04-16 1959-07-28 Foerderung Forschung Gmbh Arrangement for amplifying the light intensity of an optically projected image
NL273832A (en) * 1961-01-24
US3284196A (en) * 1962-10-11 1966-11-08 Ibm Apparatus and method for electric recording

Also Published As

Publication number Publication date
SE311180B (en) 1969-06-02
DE1424387A1 (en) 1969-01-16
FR1314384A (en) 1963-01-11
SE315312B (en) 1969-09-29
GB964880A (en) 1964-07-22
US3441947A (en) 1969-04-29
NL264844A (en) 1900-01-01
BE603891A (en) 1900-01-01

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