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1. 发明专利

JPS5834458A PRODUCTION OF SCREEN 失效
公开(公告)号：JPS5834458A
公开(公告)日：1983-02-28
申请号：JP13238881
申请日：1981-08-24
申请人： TOPPAN PRINTING CO LTD
发明人： MASUDA TOSHIROU , SHIBATA TAKAO , NOJIMA MASAKI , TANAKA YOUICHI , SHIBATA NORICHIKA
IPC分类号： G03F5/20 , G03F5/00 , G03F5/12 , G03F5/22
摘要： 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.

2. 发明专利

JPS5834453A SCREEN AND ITS PREPARATION 失效
公开(公告)号：JPS5834453A
公开(公告)日：1983-02-28
申请号：JP13238381
申请日：1981-08-24
申请人： TOPPAN PRINTING CO LTD
发明人： MASUDA TOSHIROU , SHIBATA TAKAO , NOJIMA MASAKI , TANAKA YOUICHI , SHIBATA NORICHIKA
IPC分类号： G03F5/20 , G03F5/00 , G03F5/12 , G03F5/22
摘要： PURPOSE:To form a gravure screen causing no Moire pattern, by joining each intersection point of figures consisting of groups of irregular polygons except a straight line segment corresponding to a side in a prescribed direction, and using a pattern consisting of a large number of obtained irregular broken lines. CONSTITUTION:Each intersection point, such as A-F, of a pattern shown in dotted lines, obtained by connecting squares 2-dimensionally is randomly moved as follows: Average movement distance is about 1/4 the length of one side of the square; its standard deviation is about 1/8 the length of one side of the square; and the movement direction is optional direction around the intersection point. The obtained points A'-F' are connected except lateral line segments corresponding to the initial lateral line segments joining the points, resulting in forming line segments consisting only of substantially vertical line segments. A screen is formed by using a pattern consisting of the obtained irregular broken lines.

3. 发明专利

JPS59202857A Apparatus for converting picture pattern area ratio data 失效
标题翻译：用于转换图像模式区域数据的装置
公开(公告)号：JPS59202857A
公开(公告)日：1984-11-16
申请号：JP7785283
申请日：1983-05-02
申请人： Toppan Printing Co Ltd
发明人： SHIBATA NORICHIKA , NAGAOKA MINORU , KOIZUMI MASARU , SANADA HITOSHI
IPC分类号： B41F31/02 , B41F33/00 , G01B11/28 , G06K15/00
CPC分类号： B41F33/0027
摘要： PURPOSE:To attain to simplify a working process and to enhance working efficiency, by inputting the picture pattern area ratio data of an arbitrary printing plate to a converter apparatus through a magnetic card to convert the same to data treatable by a printer while presetting the supply amount of ink prior to start of printing. CONSTITUTION:Certain picture pattern area ratio data measured by a planimeter is outputted to be recorded by a magnetic card and read by applying the same to magnetic card reader writers 12, 13. The picture pattern area ratio data is taken in CPU21 and successively stored in the predetermined address of a main memory apparatus 22. After reading error checking is applied, a keyboard 17 indicates the picture pattern planimeter which measured the intake picture pattern area ratio data. Converting data inherent to the picture pattern planimeter is taken in one after another and the picture pattern area ratio data thereof is converted to the picture pattern area ratio data of a standard code format. In the next step, the output mode of data is selected and the magnetic card is inserted into the selected reader writer to output the picture pattern area ratio data or data of an ink key opening degree converted to the code format inherent to a printer to said magnetic card.
摘要翻译：目的：为了简化工作过程并提高工作效率，通过磁卡将任意印版的图案区域比数据输入到转换器装置，将其转换为可由打印机处理的数据，同时预设供应开始印刷前的墨水量。结构：由平面计测量的某些图案区域比率数据被输出以由磁卡记录，并通过将它们应用于磁卡阅读器写入器12,13读取。图像区域比数据在CPU21中取出，并依次存储在主存储装置22的预定地址。在应用读取错误检查之后，键盘17指示测量进气画面图案面积比数据的画面图表计。将图像格式平面图所固有的数据转换成一个接一个，并将其图案区域比率数据转换为标准码格式的图像图像区域比率数据。在下一步中，选择数据的输出模式，并且将磁卡插入到所选择的读写器中，以将图像模式区域比率数据或转换为打印机固有的代码格式的墨水钥匙开度的数据输出到所述磁卡。

4. 发明专利

JPS5834456A PRODUCTION OF SCREEN 失效
公开(公告)号：JPS5834456A
公开(公告)日：1983-02-28
申请号：JP13238681
申请日：1981-08-24
申请人： TOPPAN PRINTING CO LTD
发明人： MASUDA TOSHIROU , SHIBATA TAKAO , NOJIMA MASAKI , TANAKA YOUICHI , SHIBATA NORICHIKA
IPC分类号： G03F5/20 , G03F5/00 , G03F5/12 , G03F5/22
摘要： 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.

5. 发明专利

JPS5834459A SCREEN AND ITS PRODUCTION 失效
公开(公告)号：JPS5834459A
公开(公告)日：1983-02-28
申请号：JP13238981
申请日：1981-08-24
申请人： TOPPAN PRINTING CO LTD
发明人： MASUDA TOSHIROU , SHIBATA TAKAO , NOJIMA MASAKI , TANAKA YOUICHI , SHIBATA NORICHIKA
IPC分类号： G03F5/20 , G03F5/00 , G03F5/12 , G03F5/22
摘要： 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.

6. 发明专利

JPS5834457A SCREEN AND ITS PRODUCTION 失效
公开(公告)号：JPS5834457A
公开(公告)日：1983-02-28
申请号：JP13238781
申请日：1981-08-24
申请人： TOPPAN PRINTING CO LTD
发明人： MASUDA TOSHIROU , SHIBATA TAKAO , NOJIMA MASAKI , TANAKA YOUICHI , SHIBATA NORICHIKA
IPC分类号： G03F5/20 , G03F5/00 , G03F5/12 , G03F5/22
摘要： 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.

7. 发明专利

JPS5834460A SCREEN AND ITS PRODUCTION 失效
公开(公告)号：JPS5834460A
公开(公告)日：1983-02-28
申请号：JP13239081
申请日：1981-08-24
申请人： TOPPAN PRINTING CO LTD
发明人： MASUDA TOSHIROU , SHIBATA TAKAO , NOJIMA MASAKI , TANAKA YOUICHI , SHIBATA NORICHIKA
IPC分类号： G03F5/20 , G03F5/00 , G03F5/12 , G03F5/22
摘要： 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. 发明专利

JPS5834455A SCREEN AND ITS PRODUCTION 失效
公开(公告)号：JPS5834455A
公开(公告)日：1983-02-28
申请号：JP13238581
申请日：1981-08-24
申请人： TOPPAN PRINTING CO LTD
发明人： MASUDA TOSHIROU , SHIBATA TAKAO , NOJIMA MASAKI , TANAKA YOUICHI , SHIBATA NORICHIKA
IPC分类号： G03F5/20 , G03F5/00 , G03F5/12 , G03F5/22
摘要： 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. 发明专利

JPS5834454A PREPARATION OF SCREEN 失效
公开(公告)号：JPS5834454A
公开(公告)日：1983-02-28
申请号：JP13238481
申请日：1981-08-24
申请人： TOPPAN PRINTING CO LTD
发明人： MASUDA TOSHIROU , SHIBATA TAKAO , NOJIMA MASAKI , TANAKA YOUICHI , SHIBATA NORICHIKA
IPC分类号： G03F5/20 , G03F5/00 , G03F5/12 , G03F5/22
摘要： PURPOSE:To form a gravure screen causing no moire and no roughening, by using a pattern obtained by correcting figures consisting of irregular polygons formed by deforming polygons so as to give each polygon an area in a specified range. CONSTITUTION:Each intersection point of a pattern, as shown in dotted lines, consisting of 2-dimensionally connected squares is moved randomly, and each point obtained is joined in response to the initial intersection points, resulting in forming a figure consisting of irregular quadrilaterals, as shown in full lines. Then, the areas of the quadrilaterals are corrected to be within a specified range by adding a new line segment to each too large one, as shown in a thick full line, and removing a line segment joining the intersection points from each too small one, as shown in a dotted line, thus permitting a screen to be formed using the obtained pattern.

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