| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | VERFAHREN ZUR AUFRASTERUNG VON HALBTONBILDMOTIVEN | EP82902250.8 | 1982-07-29 | EP0085066B1 | 1986-10-08 | MÜLLER, Hans; MAY, Stefan |
| According to the method for rastering half-tone images, grey values of the image are reproduced by modifying the structure density of a base raster structure selected according to the form. The attribution of the field of grey values of the half-tone image to the raster structural density reproducing said field of grey values may be fixed appropriately. In a phototechnical version of the method (Fig. 1), there is obtained a selected base raster structure (1) and from the latter enlarged raster structures are produced as negative films (9, 11). From the image to be rastered (13), there is produced, as negative films, a same number of extracts of tone values (20, 22), each of them reproducing a predetermined field of grey values of the half-tone image, fixed by means of the exposure time. The extracts of tone values (22, 20) are exposed on a support (24), with the raster structures (9, 11) of the series to which they are attributed. The support then reproduces the rastered image in a form such that the grey values portions determined by the extract of tone value are locally reproduced by the raster structural density attributed to them. There are a plurality of alternatives in the photographic technics and in the laser technics, implementing said method, which are appropriate for the rastering of half-tone images, for the production of half-tone blocks and for printing reproduction supports with images thus rastered. | ||||||
| 2 | Screen and its production | JP13238981 | 1981-08-24 | JPS5834459A | 1983-02-28 | MASUDA TOSHIROU; SHIBATA TAKAO; NOJIMA MASAKI; TANAKA YOUICHI; SHIBATA NORICHIKA |
| PURPOSE:To eliminate a moire to be generated on a gravure screen, by using a pattern containing numbers of folded segments of lines having irregular lengths which are arrayed in a certain direction. CONSTITUTION:A prescribed starting line vector 4 is set, and a mobile vector which changes irregularly its length and direction within a prescribed range to the vector 4 is produced. Numbers of such mobile vectors are set continuous to each other to obtain a segment pattern 5 which is folded irregularly (e.g., average size of cell: 100mu; average time length: 100mu; standard deviation: 20mu; folding angle: average angle 0 deg. with direction 0 deg. of starting line vector and with standard deviation 20 deg.). These patterns 5 are arranged in a certain direction so as to secure a certain space for the starting vector. An array pattern thus obtained is used to the original pattern including (opaque) transparent segments of lines of a gravure screen. | ||||||
| 3 | Production of screen | JP13238881 | 1981-08-24 | JPS5834458A | 1983-02-28 | MASUDA TOSHIROU; SHIBATA TAKAO; NOJIMA MASAKI; TANAKA YOUICHI; SHIBATA NORICHIKA |
| PURPOSE:To eliminate a moire to be generated on a gravure screen, by using an irregular polygon pattern formed by shifting irregularly the position of each intersection of each segment of line forming an irregular polygon within a prescribed range, as an original pattern of (opaque) transparent segments of lines of the screen. CONSTITUTION:The intersections (A-I) of segments of lines forming an irregular polygon such as a rectangle (dotted lines) are shifted at random (e.g., horizontal and vertical displacement limited to + or -X/2 and + or -Y/2 respectively). The obtained points A'-F' are connected in correspondence to the original rectangle forming segments of lines. Thus a pattern (solid lines) is formed with an irregular rectangle. This irregular polygonal pattern is used to an original pattern of transparent or opaque segments of lines of a gravure screen. The screen causes no moire since the transparent or opaque segments of lines have an irregular change. | ||||||
| 4 | Screen and its production | JP13238781 | 1981-08-24 | JPS5834457A | 1983-02-28 | MASUDA TOSHIROU; SHIBATA TAKAO; NOJIMA MASAKI; TANAKA YOUICHI; SHIBATA NORICHIKA |
| PURPOSE:To eliminate a moire to be generated on a gravure screen, by using a pattern including a combination of an irregularly folded lines and smooth curved lines or irregularly and curved smooth lines. CONSTITUTION:The intersections (e.g., A-F) of a pattern containing 2-dimensional regular squares adjacent to each other are shifted at random (e.g., average shift distance: about 1/4 length of a side of a square, standard deviation: about 1/8 length of a side of a square; shift direction: all angles around intersections). Then the obtained points A'-F' are connected in correspondence to the forming segments of lines of the original square to obtain a pattern containing folded lines. Using this pattern, a gravure screen is formed. Each segment of line of a pattern including irregular folded lines can be converted into a segment which is approximated with a smooth curved line. | ||||||
| 5 | Production of screen | JP13238681 | 1981-08-24 | JPS5834456A | 1983-02-28 | MASUDA TOSHIROU; SHIBATA TAKAO; NOJIMA MASAKI; TANAKA YOUICHI; SHIBATA NORICHIKA |
| PURPOSE:To eliminate the moires and the roughness for a gravure screen, by using a pattern that is obtained by giving a correction to a pattern containing irregular polygons including irregular folded lines arrayed horizontally and vertically so that the area of said irregular polygons is within a prescribed range. CONSTITUTION:The mobile vectors are produced at random starting at the end points of plural starting line vectors 4 which are arrayed with a certain space among them. Then the next mobile vectors are produced at random starting at the end points of the vectors 4. These operations are repeated to obtain a group of irregular folded lines 5. These groups of lines 5 are combined vertically and horizontally to obtain a pattern including irregular polygons. In order to limit the area of these polygons within a prescribed range, the segments of lines (thick solid line) is added to reduce the area and the segments of lines (dotted lines) connecting intersections are eliminated to increase the area respectively. The pattern thus obtained is used to form a gravure screen. | ||||||
| 6 | Screen to create a method and apparatus as well as the creation program | JP2003043527 | 2003-02-21 | JP3855013B2 | 2006-12-06 | 一矢 大嶋; 里絵 藤井 |
| A method for creating a screen for expressing a continuous tone pattern. Cells (C) of one type constitutes the screen. Each cell is composed of a set of parameters including units (u) having the same function and arranged in different directions, one or more regions (a) in each unit (u), and an element (e) having a variable printing element area in each region (a). The method comprises the steps of inputting a preset value to each of the parameters and calculating definition information (definitioner) on variation of the screen by using the inputted preset value. Thus, a high-definition screen can be easily created. | ||||||
| 7 | Screen and its production | JP13239081 | 1981-08-24 | JPS5834460A | 1983-02-28 | MASUDA TOSHIROU; SHIBATA TAKAO; NOJIMA MASAKI; TANAKA YOUICHI; SHIBATA NORICHIKA |
| PURPOSE:To eliminate a moire to be generated on a gravure screen, by forming a pattern with the (opaque) transparent segments of lines arrayed the segments of lines having irregular length and direction within a prescribed range, irregularly in a prescribed range. CONSTITUTION:The intersections A-F of a pattern (dotted lines) containing the 2-dimensional regular squares adjacent to each other are shifted at random (e.g., average shift distance: about 1/4 length of a side of a square; standard deviation: about 1/8 length of a side of a square; shift direction: all angles around intersections). The obtained points A'-F' are connected to each other in correspondence to the original regular square forming segments of lines (dolid lines) to obtain a pattern including irregular squares. Then the segments are irregularly produced with a 1/5l space within a l-14/5l range for examle (l: length of a side of the original regular square). For this segment of line, each angle 0 deg., + or -30 deg., + or -60 deg. is selected irregularly, and making the center of each segment pass through a new point after a shift at each angle. In such way, an original pattern is formed. | ||||||
| 8 | Screen and its production | JP13238581 | 1981-08-24 | JPS5834455A | 1983-02-28 | MASUDA TOSHIROU; SHIBATA TAKAO; NOJIMA MASAKI; TANAKA YOUICHI; SHIBATA NORICHIKA |
| PURPOSE:To eliminate a moire pattern and to reduce the roughness for a gravure screen, by using a pattern including numbers of irregular folded lines having cut parts. CONSTITUTION:The intersections (e.g., A-F) of a pattern (dotted lines) of 2- dimensional regular squares adjacent to each other are shifted at random (average shift distance: about 1/4 length of a side of a square; standard deviation of said shift distance: about 1/8 length of a side of a square; shift direction: all angles around intersections). The obtained points A'-F' are connected (solid lines) with a relation equivalent to that between original intersections. Thus a pattern including irregular squares is obtained. Then the segments of lines connecting among intersections and having smaller length than a prescribed value (shown by dotted lines) are erased to obtain a pattern. Using this pattern, a gravure screen is formed. | ||||||
| 9 | Sukuriinfuirumu oyobi sonoseizohoho | JP11624175 | 1975-09-25 | JPS5161305A | 1976-05-27 | RODEUIIKU ANSERUROODO |
| 10 | FLEXOGRAPHIC PRINTING | EP04718872.7 | 2004-03-09 | EP1608507B1 | 2018-11-07 | MCCREA, Devon, James; MILLER, Stephen, Hughes |
| A method of screening a continuous tone image into a halftone representation for a flexographic printing operation can compensate for characteristic printing problems in highlight areas by selectively placing non-printing dots or pixels proximate highlight dots. The non-printing dots or pixels raise the printing relief floor in the highlight areas providing additional support for marginally printable image features. | ||||||
| 11 | METHOD OF PRODUCING A SCREENED PICTURE | EP97921067.0 | 1997-04-29 | EP0951662A1 | 1999-10-27 | Jemseby, Bo |
| The present invention relates to a method of producing with the aid of exposure a screened image of a picture (2) on the light-sensitive layer (6a) of film (6), plate, etc. The characterizing feature of the invention is that it incorporates utilization of at least one stochastic screen (5). This is located before the said film (6), plate, etc., on which the said screened image is intended to be created. The toner (5a) of the stochastic screen (5) is located in direct contact with the light-sensitive layer (6a) of the said film (6), plate, etc. | ||||||
| 12 | Verfahren zur Herstellung eines Kornrasters | EP81100822.6 | 1981-02-05 | EP0057734B1 | 1985-12-18 | Müller, Hans Ernst |
| 13 | VERFAHREN ZUR AUFRASTERUNG VON HALBTONBILDMOTIVEN | EP82902250.0 | 1982-07-29 | EP0085066A1 | 1983-08-10 | MÜLLER, Hans; MAY, Stefan |
| Selon le procédé de tramage d'images en demi-teinte, on reproduit les valeurs de gris de l'image en modifiant la densité structurelle d'une structure de base de trame choisie selon la forme. L'attribution du domaine de valeurs de gris de l'image en demi-teinte à la densité structurelle de trame reproduisant ce domaine de valeurs de gris peut être fixée de manière appropriée. Dans une version phototechnique du procédé (Fig. 1) on obtient une structure de base de trame (1) choisie et à partir de celle-ci sont produites, en tant que films négatifs (9, 11), des structures de trame élargies. A partir de l'image à tramer (13) on produit, en tant que films négatifs, un même nombre d'extraits de valeurs de teintes (20, 22), chacun desquels reproduit un domaine déterminé de valeurs de gris de l'image en demi-teinte, fixé à l'aide du temps de pose. Les extraits des valeurs de teintes (22, 20) sont exposés sur un support (24), avec les structures de trame (9, 11) de la série qui leurs sont attribuées. Le support reproduit ensuite l'image tramée dans une forme telle que les portions de valeurs de gris déterminées par l'extrait de valeur de teinte sont reproduites localement par la densité structurelle de trame attribuée à celles-ci. Il existe plusieurs variantes en technique photographique et en technique du laser, mettant en oeuvre ce procédé, qui conviennent au tramage d'images en demi-teinte, pour la production de clichés tramés et pour l'impression de supports de reproductions avec des images ainsi tramées. | ||||||
| 14 | Verfahren zur Herstellung eines Kornrasters | EP81100822.6 | 1981-02-05 | EP0057734A1 | 1982-08-18 | Müller, Hans Ernst |
Bei dem Verfahren wird auf eine Glasplatte eine dünne lichtdurchlässige Schicht durch Aufgiessen einer Asphaltlösung aufgebracht. Anschliessend lässt man die Schicht unter Lichteinwirkung trocknen, wodurch das Asphalt unlöslich wird und ein feines Korn entsthet. Dieses Korn wird dann auf ein lichtempfindliches Material umkopiert. |
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| 15 | FLEXOGRAPHIC PRINTING | EP04718872 | 2004-03-09 | EP1608507A4 | 2009-12-23 | MCCREA DEVON JAMES; MILLER STEPHEN HUGHES |
| A method of screening a continuous tone image into a halftone representation for a flexographic printing operation can compensate for characteristic printing problems in highlight areas by selectively placing non-printing dots or pixels proximate highlight dots. The non-printing dots or pixels raise the printing relief floor in the highlight areas providing additional support for marginally printable image features. | ||||||
| 16 | FLEXOGRAPHIC PRINTING | EP04718872.7 | 2004-03-09 | EP1608507A2 | 2005-12-28 | MCCREA, Devon, James; MILLER, Stephen, Hughes |
| A method of screening a continuous tone image into a halftone representation for a flexographic printing operation can compensate for characteristic printing problems in highlight areas by selectively placing non-printing dots (28) proximate highlight dots (26). The non-printing dots (28) raise the printing relief floor in the highlight areas providing additional support for marginally printable image features. | ||||||
| 17 | AUTOTYPISCH GERASTERTE DRUCKFORMEN MIT WABENARTIG ANGEORDNETEN RASTERELEMENTEN | EP87902413.0 | 1987-04-29 | EP0302870A1 | 1989-02-15 | SCHUMACHER, Ernst |
| L'invention décrite comporte une trame optique avec laquelle on peut produire les originaux transparents nécessaires en appliquant le procédé photo-mécanique de production de forme d'impression. Des formes d'impression du type objet de la présente invention peuvent être utilisées avantageusement pour tous les procédés d'impression puisque les parties de surface imprimantes ou non imprimantes des éléments de trame, dont les dimensions sont fonction de la tonalité, sont conçues avec des formes géométriques spécifiques aussi bien au procédé d'impression qu'à la tonalité à reproduire. Dans l'impression typographique et l'impression offset, les formes d'impression décrites permettent une progression très uniforme de l'échelle complète des tonalités; cet effet est dû en particulier au fait que la transition des éléments de trame d'impression liés aux éléments de trame détachés s'effectue grâce à une structure en forme d'écusson des éléments de trame, qui est caractéristique de l'invention. En outre, les grands blancs sont effectivement accentués par une réduction intentionnelle de la fréquence des points dans les zones de grands blancs. Les formes d'impression en creux décrites permettent d'améliorer le rapport des surfaces creuses aux surfaces pleines, les pleins étant stabilisés. | ||||||
| 18 | Verfahren zum Erzeugen einer zum Herstellen einer rasterlosen Flachdruckform bestimmten photographischen Aufnahme von einer Vorlage | EP78100453.6 | 1978-07-20 | EP0000552A1 | 1979-02-07 | Müller, Hans Ernst |
Bei einem Verfahren zur Erzeugung einer zum Herstellen einer rasterlosen Flachdruckform bestimmten photographischen Aufnahme von einer Vorlage, wird von der Vorfage ein Filmpositiv oder- negativ hergestellt. Ein auf einer lichtdurchlasigen Unteriage aufgebrachtes Kom wird auf ein lichempfindliches Material umkopiert, so dass eine lichtdurchlässige Kopie entsteht. Diese Kopie wird dann in den Strahlengang zwischen dem Filmpositiv oder- negativ und dem photographischen Aufnahmematerial eingesetzt. Das Aufnahmematerial wird entwickelt und es entsteht eine rasterlose photographische Aufnahme die als Druckträger verwendet wird. |
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| 19 | Screen manufacturing method/device and manufacturing program | JP2003043527 | 2003-02-21 | JP2004261979A | 2004-09-24 | FUJII RIE; OSHIMA KAZUYA |
| <P>PROBLEM TO BE SOLVED: To easily manufacture a high quality level screen. <P>SOLUTION: In the screen for representing a continuous gradation pattern, cells C of one kind making up the screen are constituted of a group of parameters consisting of units (u) which work in the same way but are each arranged in a different direction, a region (a) which is divided into a whole single region itself or a plurality of regions in the units (u) and a single element (e) accompanied by a change in an image line area in the region (a). Thus the screen manufacturing method is characterized in that it has a step to enter a setting value to the individual parameters of the group of parameters and a step to calculate definition information (definitioner) on the change in the screen by the entered setting value. <P>COPYRIGHT: (C)2004,JPO&NCIPI | ||||||
| 20 | JPH01502455A - | JP50264387 | 1987-04-29 | JPH01502455A | 1989-08-24 | |
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