NL182986B - Apparatus for manufacturing grid printing forms. - Google Patents

Apparatus for manufacturing grid printing forms.

Info

Publication number
NL182986B
NL182986B NL7904904A NL7904904A NL182986B NL 182986 B NL182986 B NL 182986B NL 7904904 A NL7904904 A NL 7904904A NL 7904904 A NL7904904 A NL 7904904A NL 182986 B NL182986 B NL 182986B
Authority
NL
Netherlands
Prior art keywords
printing forms
grid printing
grid
forms
Prior art date
Application number
NL7904904A
Other languages
Dutch (nl)
Other versions
NL7904904A (en
NL182986C (en
Original Assignee
Hell Rudolf Dr Ing 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
Priority to DE19782827596 priority Critical patent/DE2827596C2/de
Application filed by Hell Rudolf Dr Ing Gmbh filed Critical Hell Rudolf Dr Ing Gmbh
Publication of NL7904904A publication Critical patent/NL7904904A/en
Publication of NL182986B publication Critical patent/NL182986B/en
Application granted granted Critical
Publication of NL182986C publication Critical patent/NL182986C/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40Picture signal circuits
    • H04N1/405Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4058Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern with details for producing a halftone screen at an oblique angle
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46Colour picture communication systems
    • H04N1/52Circuits or arrangements for halftone screening
NL7904904A 1978-06-23 1979-06-22 Apparatus for manufacturing grid printing forms. NL182986C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782827596 DE2827596C2 (en) 1978-06-23 1978-06-23

Publications (3)

Publication Number Publication Date
NL7904904A NL7904904A (en) 1979-12-28
NL182986B true NL182986B (en) 1988-01-18
NL182986C NL182986C (en) 1988-06-16

Family

ID=6042572

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7904904A NL182986C (en) 1978-06-23 1979-06-22 Apparatus for manufacturing grid printing forms.

Country Status (14)

Country Link
JP (1) JPH0335867B2 (en)
AU (1) AU529655B2 (en)
CA (1) CA1127090A (en)
CH (1) CH643373A5 (en)
DD (1) DD144468A5 (en)
DE (1) DE2827596C2 (en)
ES (1) ES481815A1 (en)
FR (1) FR2429455B1 (en)
GB (1) GB2026283B (en)
IL (1) IL57630A (en)
IT (1) IT1121443B (en)
NL (1) NL182986C (en)
SE (1) SE435107B (en)
SU (1) SU1463125A3 (en)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047145B1 (en) * 1980-09-01 1988-03-16 Crosfield Electronics Limited A method of producing a half-tone reproduction
JPS6235304B2 (en) * 1981-01-21 1987-07-31 Dainippon Screen Mfg
JPS6258590B2 (en) * 1981-04-14 1987-12-07 Dainippon Screen Mfg
US4499489A (en) * 1981-06-08 1985-02-12 Dr. Ing. Rudolf Hell Gmbh Production of screen printing blocks
JPS6236427B2 (en) * 1981-11-07 1987-08-06 Dainippon Screen Mfg
EP0079974B1 (en) * 1981-11-20 1987-02-04 DR.-ING. RUDOLF HELL GmbH Screen system for multicolour printing
DE3312273C3 (en) * 1982-04-06 1996-03-21 Canon Kk Image processing device
US5666444A (en) * 1982-04-06 1997-09-09 Canon Kabushiki Kaisha Image processing apparatus
JPS58182372A (en) * 1982-04-20 1983-10-25 Canon Inc Setting method of printer screen angle
JPH0134495B2 (en) * 1982-12-27 1989-07-19 Reo Giken Kk
JPS59161981A (en) * 1983-03-06 1984-09-12 Canon Inc Picture processor
GB8318835D0 (en) * 1983-07-12 1983-08-10 Crosfield Electronics Ltd Half-tone image reproducing
EP0141869B1 (en) * 1983-11-14 1987-09-16 DR.-ING. RUDOLF HELL GmbH Method and apparatus for manufacturing screened printing forms
JPS60213170A (en) * 1984-04-06 1985-10-25 Dainippon Screen Mfg Co Ltd Generating method of dot pattern in picture scanning recorder
AT381401B (en) * 1984-06-04 1986-10-10 Weidinger Wolfgang Method for the production of screen color extensions and the further processing thereof in a flexo printing form
JPH0614187B2 (en) * 1984-10-11 1994-02-23 大日本スクリーン製造株式会社 Halftone film making device
JPH0657049B2 (en) * 1984-12-07 1994-07-27 大日本スクリ−ン製造株式会社 Halftone dot formation method
DE3614790A1 (en) * 1986-05-02 1987-11-05 Hell Rudolf Dr Ing Gmbh Method and device for electronic side combination for reproduction technology
GB8628238D0 (en) * 1986-11-26 1986-12-31 Crosfield Electronics Ltd Generating half-tone representations
JPS6444681A (en) * 1987-08-12 1989-02-17 Fuji Photo Film Co Ltd Dot screen forming method
DE3738014A1 (en) * 1987-11-09 1989-05-18 Winrich Dipl Ing Gall Method of generating coloured images on a carrier surface
JPH022042A (en) * 1987-12-18 1990-01-08 Contex Graphic Syst Inc Intermediate color printing system
JPH01228848A (en) * 1988-03-10 1989-09-12 Canon Inc Image forming apparatus
US5172248A (en) * 1988-05-18 1992-12-15 Fuji Photo Film Co., Ltd. Method for forming halftone screen and apparatus therefor
EP0585961A1 (en) * 1988-05-18 1994-03-09 Fuji Photo Film Co., Ltd. A light beam scanning apparatus for forming a halftone screen
US4916530A (en) * 1988-09-02 1990-04-10 Itek Graphix Corp. High resolution halftone dot generator system including LED array
US4924301A (en) * 1988-11-08 1990-05-08 Seecolor Corporation Apparatus and methods for digital halftoning
JPH0691620B2 (en) * 1988-11-15 1994-11-14 大日本スクリーン製造株式会社 Method for recording halftone image of color image
US4918622A (en) * 1988-11-16 1990-04-17 Eastman Kodak Company Electronic graphic arts screener
US4977458A (en) * 1988-11-16 1990-12-11 Eastman Kodak Company Apparatus for addressing a font to suppress Moire patterns occurring thereby and a method for use therein
JPH0666880B2 (en) * 1988-11-17 1994-08-24 大日本スクリーン製造株式会社 Halftone image forming method
US5053887A (en) * 1989-06-27 1991-10-01 Ibm Corporation Technique for producing a fine grained dithered halftone image having an increased number of gray levels
EP0418844B1 (en) * 1989-09-20 1997-12-03 Toyo Ink Mfg. Co., Ltd. Color image information processing method
EP0711067A3 (en) * 1989-11-21 1996-07-10 Toyo Ink Mfg Co Method to form density patterns for reproducing binary gradations
DE69120591T2 (en) * 1990-04-25 1997-02-13 Bayer Ag Method for breaking the symmetry of matrix elements in an electronic screening process
JP2598723B2 (en) * 1990-06-28 1997-04-09 大日本スクリーン製造株式会社 Halftone image creation device
US5264926A (en) * 1990-09-14 1993-11-23 Minnesota Mining And Manufacturing Company Perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation
US5258832A (en) * 1990-09-14 1993-11-02 Minnesota Mining And Manufacturing Company Non-perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation
US5323245A (en) * 1990-09-14 1994-06-21 Minnesota Mining And Manufacturing Company Perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation
US5253084A (en) * 1990-09-14 1993-10-12 Minnesota Mining And Manufacturing Company General kernel function for electronic halftone generation
US5583660A (en) * 1990-09-14 1996-12-10 Minnesota Mining And Manufacturing Company Non-perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation
US5221971A (en) * 1990-11-21 1993-06-22 Polaroid Corporation Area modulation printing apparatus
DE69133044T2 (en) * 1991-02-08 2003-03-06 Adobe Systems Inc Dot size control method for digital halftone screening with multi-cell threshold matrix
DE4107703C2 (en) * 1991-03-09 1994-07-21 Hell Ag Linotype Method and device for recording rasterized images
DE4108253C2 (en) * 1991-03-14 1995-04-27 Hell Ag Linotype Process and arrangement for producing screened color separations and printing forms
JPH077624A (en) * 1991-09-09 1995-01-10 Mitsubishi Paper Mills Ltd Dot picture recording method
DE4205085A1 (en) * 1992-02-17 1993-08-26 Mannesmann Ag Method and circuit for generating image information (pixmaps)
JP2759186B2 (en) * 1992-10-21 1998-05-28 大日本スクリーン製造株式会社 Multicolor mesh image creation method
US5572600A (en) * 1993-06-22 1996-11-05 Nec Corporation Color image processing apparatus capable of suppressing moire
EP0680193B1 (en) * 1994-04-27 2000-07-12 AGFA-GEVAERT naamloze vennootschap Tone dependent rosette structures in multi layer screening by phase modulation
US6117334A (en) * 1995-01-10 2000-09-12 Coury; William S. Decontamination reactor system and method of using same
US6361697B1 (en) 1995-01-10 2002-03-26 William S. Coury Decontamination reactor system and method of using same
JPH08227147A (en) * 1995-02-21 1996-09-03 Dainippon Screen Mfg Co Ltd Dot forming method and device therefor
DE19722697A1 (en) * 1997-05-30 1998-12-03 Heidelberger Druckmasch Ag Process for digital screening of halftone images with screens of any screen width and screen angle
DE10022225B4 (en) * 2000-05-08 2015-12-17 Heidelberger Druckmaschinen Ag Multi-level screening with grids of any screen width and screen angle
JP2002356008A (en) 2001-02-02 2002-12-10 Ricoh Co Ltd Image forming apparatus and method
US6731317B2 (en) 2001-03-14 2004-05-04 Ricoh Company, Ltd. Pulse modulation signal generation circuit, and semiconductor laser modulation device, optical scanning device and image formation device using the same
DE10261004B4 (en) * 2002-12-24 2009-03-26 Heidelberger Druckmaschinen Ag Method for applying random numbers in the screening of image data
AT492117T (en) * 2007-06-06 2011-01-15 Weidlich Ernst Rudolf Dr Method for engraving a printing form by means of laser light
JP2009218736A (en) 2008-03-07 2009-09-24 Canon Inc Image forming apparatus and image forming method
DE102009042374A1 (en) 2008-10-20 2010-04-22 Heidelberger Druckmaschinen Ag Method for digital halftoning of halftone images

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084183A (en) * 1970-03-18 1978-04-11 Dr. Ing. Rudolf Hell Gmbh. Method for the electro-optical reproduction of half-tone pictures
DE2012728C3 (en) * 1970-03-18 1974-09-19 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel
US3911480A (en) * 1972-12-08 1975-10-07 John P Brucker Generating screened half-tones by scanning
JPS5340292B2 (en) * 1973-08-31 1978-10-26
GB1495499A (en) * 1974-01-30 1977-12-21 Crosfield Electronics Ltd Image reproduction systems
DE2646926B2 (en) * 1976-10-18 1979-03-29 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel

Also Published As

Publication number Publication date
AU529655B2 (en) 1983-06-16
FR2429455A1 (en) 1980-01-18
IT1121443B (en) 1986-04-02
NL7904904A (en) 1979-12-28
DE2827596C2 (en) 1984-11-22
GB2026283A (en) 1980-01-30
IT7923661D0 (en) 1979-06-18
JPS556393A (en) 1980-01-17
IL57630A (en) 1982-03-31
GB2026283B (en) 1983-01-06
IL57630D0 (en) 1979-10-31
AU4831179A (en) 1980-01-03
ES481815A1 (en) 1980-07-01
CH643373A5 (en) 1984-05-30
DE2827596A1 (en) 1980-02-07
SE435107B (en) 1984-09-03
CA1127090A (en) 1982-07-06
JPH0335867B2 (en) 1991-05-29
SE7905507L (en) 1979-12-24
CA1127090A1 (en)
NL182986C (en) 1988-06-16
SU1463125A3 (en) 1989-02-28
DD144468A5 (en) 1980-10-15
FR2429455B1 (en) 1984-10-19

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee