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GB1044547A - Improvements in or relating to methods of and apparatus for producing printing blocks particularly intaglio printing blocks - Google Patents

Improvements in or relating to methods of and apparatus for producing printing blocks particularly intaglio printing blocks

Info

Publication number
GB1044547A
GB1044547A GB34415/63A GB3441563A GB1044547A GB 1044547 A GB1044547 A GB 1044547A GB 34415/63 A GB34415/63 A GB 34415/63A GB 3441563 A GB3441563 A GB 3441563A GB 1044547 A GB1044547 A GB 1044547A
Authority
GB
United Kingdom
Prior art keywords
pulses
scanning
cell
photo
laser
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
GB34415/63A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1044547A publication Critical patent/GB1044547A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40043—Circuits exciting or modulating particular heads for reproducing continuous tone value scales using more than one type of modulation, e.g. pulse width modulation and amplitude modulation
    • 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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0823—Devices involving rotation of the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B41C1/05—Heat-generating engraving heads, e.g. laser beam, electron beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40037—Circuits exciting or modulating particular heads for reproducing continuous tone value scales the reproducing element being a laser
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S408/00—Cutting by use of rotating axially moving tool
    • Y10S408/701—Cutting by use of radiant energy, e.g. laser, maser

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Laser Beam Printer (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

1,044,547. Removing metal by laser beams. R. HELL. Aug. 30, 1963 [Sept. 1, 1962], No. 34415/63. Heading B3V. [Also in Division H3] In the production of printing blocks from single coloured or multi-coloured picture or text originals by photo-electrically scanning the originals and removing material from the surface of the blocks under control of the scanning, the material is evaporated from the surface by a very highly bunched monochromatic bundle of light rays of high power density, particularly a laser beam, focused on the surface and modulated by the photo-cell signals. The process is applicable to the making of relief or preferably intaglio printing blocks with or without screening. In one embodiment for making a screened block, Fig. 1, an exchangeable cylinder 3 rotated by motor 1 carries the original 4 and the printing block material 5. The original and the block may be on separate synchronized machines. Scanning is effected by a point light source 6 focused by lens 7 and the reflection is passed through lens 8 to a photo-cell 9 whose signals amplified at 10 control a Kerr cell 11 in the path of a laser beam emitted from a laser crystal 17. This may be a synthetic ruby doped with chromium ions or of fluorspar doped with samarium or uranium ions. The Kerr cell thus modulates the lightintensity from the laser which is focused on the block material 5 by lens 14. Crystal 17 and a cylindrical flashlamp 16 are mounted on the focal lines of an elliptical mirrored chamber 15. The xenon flashlamp 16 is fed with constant pulses at the same frequency -as the screening from a high voltage generator 18 and a scanning stage 26 controlled through an amplifier 25 by a photocell 24 receiving light pulses from source 21 through a disc 19 on the motor shaft, having alternate opaque and transparent sections 20. In another embodiment. Fig. 2 (not shown), the laser beam has pulses of a constant amplitude and variable duration. The scanning signals from photo-cell 9 are fed to a scanner 27 which receives constant duration pulses from disc 19 and photo-cell 24. The variable amplitude pulses are transformed at 28 into time modulated pulses of constant amplitude. The laser crystal may be cooled with liquid air and the printing cylinder may also be cooled. Alternatively a gas laser may be used particularly for continuous emission processes. A plurality of scanning devices and lasers may be used.
GB34415/63A 1962-09-01 1963-08-30 Improvements in or relating to methods of and apparatus for producing printing blocks particularly intaglio printing blocks Expired GB1044547A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0046818 1962-09-01

Publications (1)

Publication Number Publication Date
GB1044547A true GB1044547A (en) 1966-10-05

Family

ID=7156232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34415/63A Expired GB1044547A (en) 1962-09-01 1963-08-30 Improvements in or relating to methods of and apparatus for producing printing blocks particularly intaglio printing blocks

Country Status (3)

Country Link
US (1) US3374311A (en)
CH (1) CH401689A (en)
GB (1) GB1044547A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157754A3 (en) * 1984-03-22 1986-05-07 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Method of improving the surface condition of a cylinder
EP0158621A3 (en) * 1984-03-22 1986-05-14 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Method of improving the surface condition of a cylinder
WO2005002869A1 (en) * 2003-07-03 2005-01-13 Oesterreichische Banknoten- Und Sicherheitsdruck Gmbh Method for producing a printing plate for intaglio printing and corresponding printing plate

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461229A (en) * 1965-08-17 1969-08-12 Jess Oppenheimer Electro-optical reproduction method
US3506779A (en) * 1967-04-03 1970-04-14 Bell Telephone Labor Inc Laser beam typesetter
US3482254A (en) * 1967-12-06 1969-12-02 Telex Inc Apparatus for recording the time-variation of an electrical signal utilizing a pulsed laser
US3646262A (en) * 1968-03-25 1972-02-29 Printing Dev Inc Electronic reproduction of continuous image with controlled modification of image reproduction
US3549733A (en) * 1968-12-04 1970-12-22 Du Pont Method of producing polymeric printing plates
US3696742A (en) * 1969-10-06 1972-10-10 Monsanto Res Corp Method of making a stencil for screen-printing using a laser beam
BE760067A (en) * 1969-12-09 1971-06-09 Applied Display Services METHOD AND APPARATUS FOR THE MANUFACTURING OF SURFACE PLATES AS WELL AS PRINTING PLATES THEREFORE OBTAINED
US3781902A (en) * 1971-09-07 1973-12-25 Nasa Recorder/processor apparatus
DE2413034C3 (en) * 1974-03-19 1983-11-17 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Method and arrangement for avoiding errors in the reproduction of original images
CH612376A5 (en) * 1976-03-10 1979-07-31 Lasag Ag Apparatus for scribing printing formes using laser beams, and method for operating this apparatus
WO1980002819A1 (en) * 1979-06-14 1980-12-24 G Machulka Laser device for manufacturing printing plates
JPS5691228A (en) * 1979-12-25 1981-07-24 Fuji Photo Film Co Ltd Laser recorder
DE3167482D1 (en) * 1980-09-03 1985-01-10 Crosfield Electronics Ltd Improvements relating to rotary printing presses
GB8719412D0 (en) * 1987-08-17 1987-09-23 Zed Instr Ltd Preparing screen
JPH02139238A (en) * 1988-09-13 1990-05-29 Sony Corp Form cylinder device of intaglio
JP2000233486A (en) * 1999-02-17 2000-08-29 Riso Kagaku Corp Plate making device and plate making method
ATE388826T1 (en) * 2005-12-22 2008-03-15 Tapematic Spa A DEVICE FOR DRYING BY RADIATION
CN117921194B (en) * 2024-01-22 2024-06-28 温州运城制版有限公司 Electric engraving roller with heat dissipation mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE608711A (en) * 1959-04-06 1962-03-29 Trg Light amplifier device
NL268860A (en) * 1959-04-17
US3226696A (en) * 1962-03-23 1965-12-28 John F Dove Data storage and retrieval system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157754A3 (en) * 1984-03-22 1986-05-07 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Method of improving the surface condition of a cylinder
EP0158621A3 (en) * 1984-03-22 1986-05-14 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Method of improving the surface condition of a cylinder
WO2005002869A1 (en) * 2003-07-03 2005-01-13 Oesterreichische Banknoten- Und Sicherheitsdruck Gmbh Method for producing a printing plate for intaglio printing and corresponding printing plate

Also Published As

Publication number Publication date
CH401689A (en) 1965-10-31
US3374311A (en) 1968-03-19

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