DE69517503D1 - Intensitätsmodulierte stochastische Rasterung zur Herstellung lithographischer Druckplatten - Google Patents

Intensitätsmodulierte stochastische Rasterung zur Herstellung lithographischer Druckplatten

Info

Publication number
DE69517503D1
DE69517503D1 DE69517503T DE69517503T DE69517503D1 DE 69517503 D1 DE69517503 D1 DE 69517503D1 DE 69517503 T DE69517503 T DE 69517503T DE 69517503 T DE69517503 T DE 69517503T DE 69517503 D1 DE69517503 D1 DE 69517503D1
Authority
DE
Germany
Prior art keywords
intensity
production
lithographic printing
printing plates
stochastic screening
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 - Fee Related
Application number
DE69517503T
Other languages
English (en)
Other versions
DE69517503T2 (de
Inventor
Rene Govaert
Paul Delabastita
Jacobus Bosschaerts
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert 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
Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Publication of DE69517503D1 publication Critical patent/DE69517503D1/de
Application granted granted Critical
Publication of DE69517503T2 publication Critical patent/DE69517503T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/06—Silver salts
    • G03F7/07—Silver salts used for diffusion transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1083—Mechanical aspects of off-press plate preparation
    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Plates And Materials Therefor (AREA)
DE69517503T 1995-03-22 1995-03-22 Intensitätsmodulierte stochastische Rasterung zur Herstellung lithographischer Druckplatten Expired - Fee Related DE69517503T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95200711A EP0734147B1 (de) 1995-03-22 1995-03-22 Intensitätsmodulierte stochastische Rasterung zur Herstellung lithographischer Druckplatten

Publications (2)

Publication Number Publication Date
DE69517503D1 true DE69517503D1 (de) 2000-07-20
DE69517503T2 DE69517503T2 (de) 2001-02-08

Family

ID=8220110

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69517503T Expired - Fee Related DE69517503T2 (de) 1995-03-22 1995-03-22 Intensitätsmodulierte stochastische Rasterung zur Herstellung lithographischer Druckplatten

Country Status (4)

Country Link
US (1) US5858589A (de)
EP (1) EP0734147B1 (de)
JP (1) JP2889176B2 (de)
DE (1) DE69517503T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6184969B1 (en) * 1994-10-25 2001-02-06 James L. Fergason Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement
WO1998047707A1 (en) * 1997-04-24 1998-10-29 R.R. Donnelley & Sons Company Method of and system for high quality reproduction of images
EP0908325B1 (de) * 1997-10-09 2003-02-05 Agfa-Gevaert Verbesserte Wiedergabe von Bildern mit kontinuierlichen Tönen durch Verringerung der Gruppierung von Halbtonpunkten
US6376138B1 (en) 1997-10-09 2002-04-23 Agfa-Gevaert Rendering of continuous tone images by reducing clustering of halftone dots
WO2000049604A1 (fr) 1999-02-16 2000-08-24 Quantum Corporation Procede d'ecriture de signaux d'asservissement sur une bande magnetique
JP4286457B2 (ja) 1999-02-17 2009-07-01 クウォンタム・コーポレイション 磁気テープへのサーボ信号書き込み方法
US6456397B1 (en) 1999-05-12 2002-09-24 Presstek, Inc. Method and apparatus for digital imaging with reduced periodic artifacts using stochastic gradients
US6558774B1 (en) 1999-08-17 2003-05-06 Quantum Corporation Multiple-layer backcoating for magnetic tape
JP2001265001A (ja) * 2000-03-17 2001-09-28 Fuji Photo Film Co Ltd 画像記録装置および方法
US7336380B2 (en) * 2001-02-13 2008-02-26 Heidelberger Druckmaschinen Ag Raster generation system and method of processing raster data
US20030107768A1 (en) * 2001-12-04 2003-06-12 Crounse Kenneth R. Halftoning with uniformly dispersed dot growth
US6980390B2 (en) * 2003-02-05 2005-12-27 Quantum Corporation Magnetic media with embedded optical servo tracks
US7187515B2 (en) * 2003-02-05 2007-03-06 Quantum Corporation Method and system for tracking magnetic media with embedded optical servo tracks
US8243004B2 (en) 2003-03-10 2012-08-14 Fergason Patent Properties, Llc Apparatus and method for preparing, storing, transmitting and displaying images
US6992688B2 (en) * 2004-01-28 2006-01-31 Eastman Kodak Company Method for developing multilayer imageable elements
US6844141B1 (en) * 2003-07-23 2005-01-18 Kodak Polychrome Graphics Llc Method for developing multilayer imageable elements
EP1588847B1 (de) * 2004-04-21 2007-05-09 Agfa Graphics N.V. Verfahren zur genauen Belichtung von kleinen Punkten auf eine Wärmeempfindliche positiv arbeitende Flachdruckplatte
US7467587B2 (en) 2004-04-21 2008-12-23 Agfa Graphics, N.V. Method for accurate exposure of small dots on a heat-sensitive positive-working lithographic printing plate material
US7990524B2 (en) * 2006-06-30 2011-08-02 The University Of Chicago Stochastic scanning apparatus using multiphoton multifocal source
US7767383B2 (en) * 2007-08-08 2010-08-03 Roberts David H Method of pre-exposing relief image printing plate
AU2018356367B2 (en) * 2017-10-27 2021-04-01 Eco3 Bv Digital halftoning with spiral dots
NL2022776B1 (en) * 2019-03-20 2020-09-28 Xeikon Prepress Nv Method and system for applying a pattern on a mask layer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU39915A1 (de) * 1960-04-01
JPH02109013A (ja) * 1988-10-19 1990-04-20 Hitachi Koki Co Ltd 光走査装置
US5111310A (en) * 1990-12-04 1992-05-05 Research Technologies Corporation, Inc. Method and apparatus for halftone rendering of a gray scale image using a blue noise mask
EP0519123B1 (de) * 1991-06-20 1994-11-23 Agfa-Gevaert N.V. Verfahren zur Herstellung einer lithographischen Aluminium-Offset-Druckform mittels des Silbersalzdiffusionsübertragungsverfahrens
JP2692482B2 (ja) * 1992-02-14 1997-12-17 日本ビクター株式会社 光学的記録における階調再現方法
DE69303809T2 (de) * 1993-04-16 1997-02-20 Agfa Gevaert Nv Verfahren zur Herstellung lithographischer Druckformen
DE69403581T2 (de) * 1993-08-13 1998-02-05 Agfa Gevaert Nv Verfahren zum Erzeugen frequenzmodulierter Halbtonbilder

Also Published As

Publication number Publication date
EP0734147A1 (de) 1996-09-25
JPH08262695A (ja) 1996-10-11
US5858589A (en) 1999-01-12
JP2889176B2 (ja) 1999-05-10
EP0734147B1 (de) 2000-06-14
DE69517503T2 (de) 2001-02-08

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee