IT1132438B - Retino a contatto per produrre cliche' a mezza tinta con separazione dei colori - Google Patents

Retino a contatto per produrre cliche' a mezza tinta con separazione dei colori

Info

Publication number
IT1132438B
IT1132438B IT24226/80A IT2422680A IT1132438B IT 1132438 B IT1132438 B IT 1132438B IT 24226/80 A IT24226/80 A IT 24226/80A IT 2422680 A IT2422680 A IT 2422680A IT 1132438 B IT1132438 B IT 1132438B
Authority
IT
Italy
Prior art keywords
color
clicks
contact screen
produce half
color separation
Prior art date
Application number
IT24226/80A
Other languages
English (en)
Italian (it)
Other versions
IT8024226A0 (it
Inventor
Keiichiro Kamata
Original Assignee
Dainippon Screen Mfg
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 Dainippon Screen Mfg filed Critical Dainippon Screen Mfg
Publication of IT8024226A0 publication Critical patent/IT8024226A0/it
Application granted granted Critical
Publication of IT1132438B publication Critical patent/IT1132438B/it

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
    • G03F5/00—Screening processes; Screens therefor
    • G03F5/22—Screening processes; Screens therefor combining several screens; Elimination of moiré

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Image Communication Systems (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
IT24226/80A 1979-08-21 1980-08-20 Retino a contatto per produrre cliche' a mezza tinta con separazione dei colori IT1132438B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979114024U JPS6128202Y2 (OSRAM) 1979-08-21 1979-08-21

Publications (2)

Publication Number Publication Date
IT8024226A0 IT8024226A0 (it) 1980-08-20
IT1132438B true IT1132438B (it) 1986-07-02

Family

ID=14627125

Family Applications (2)

Application Number Title Priority Date Filing Date
IT24226/80A IT1132438B (it) 1979-08-21 1980-08-20 Retino a contatto per produrre cliche' a mezza tinta con separazione dei colori
IT8022572U IT8022572V0 (it) 1979-08-21 1980-08-20 Retino a contatto per produrre cliche a mezza tinta con separazione dei colori.

Family Applications After (1)

Application Number Title Priority Date Filing Date
IT8022572U IT8022572V0 (it) 1979-08-21 1980-08-20 Retino a contatto per produrre cliche a mezza tinta con separazione dei colori.

Country Status (5)

Country Link
US (1) US4342046A (OSRAM)
JP (1) JPS6128202Y2 (OSRAM)
DE (1) DE3030075A1 (OSRAM)
GB (1) GB2062288A (OSRAM)
IT (2) IT1132438B (OSRAM)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495517A (en) * 1979-11-02 1985-01-22 Sportelli Frank A Printing screen and method of making same
ATE25434T1 (de) * 1981-11-20 1987-02-15 Hell Rudolf Dr Ing Gmbh Rastersystem fuer den mehrfarbendruck.
US4506956A (en) * 1983-03-29 1985-03-26 Xerox Corporation Multicolor liquid crystal display with a dead front
US4504141A (en) * 1983-07-07 1985-03-12 Noby Yamakoshi System for making matched backgrounds
CA1241229A (en) * 1984-09-03 1988-08-30 Waltherus C.J. Bierhoff Colour printer
US4660098A (en) * 1985-10-17 1987-04-21 Eastman Kodak Company Apparatus for producing copies of a video image utilizing line pattern rotation
EP0256502A3 (en) * 1986-08-15 1989-09-27 Kabushiki Kaisha Toshiba Image forming apparatus with positioning-mark forming function
US5617224A (en) * 1989-05-08 1997-04-01 Canon Kabushiki Kaisha Imae processing apparatus having mosaic processing feature that decreases image resolution without changing image size or the number of pixels
US5341228A (en) * 1990-12-04 1994-08-23 Research Corporation Technologies Method and apparatus for halftone rendering of a gray scale image using a blue noise mask
US5691823A (en) * 1995-06-26 1997-11-25 Scitex Corporation Ltd. Apparatus and method for random screening

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428945A (en) * 1940-12-27 1947-10-14 Rca Corp Color facsimile
JPS5822178Y2 (ja) * 1973-03-02 1983-05-12 ダイニツポンスクリ−ンセイゾウ カブシキガイシヤ デンシイロブンカイソウサソウチ ニ オケル イロブンカイバンアミカケヨウ コンタクトスクリ−ン
JPS6041342B2 (ja) * 1977-09-20 1985-09-17 大日本スクリ−ン製造株式会社 画像走査記録装置におけるレジスタ−マ−ク記録方法
US4151555A (en) * 1977-11-25 1979-04-24 The Mead Corporation Optical scanning and encoding device

Also Published As

Publication number Publication date
DE3030075A1 (de) 1981-03-12
JPS6128202Y2 (OSRAM) 1986-08-21
IT8022572V0 (it) 1980-08-20
GB2062288A (en) 1981-05-20
US4342046A (en) 1982-07-27
JPS5632843U (OSRAM) 1981-03-31
IT8024226A0 (it) 1980-08-20

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