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51. 发明专利

JPS6049898B2 失效
公开(公告)号：JPS6049898B2
公开(公告)日：1985-11-05
申请号：JP9465778
申请日：1978-08-04
申请人： DAINIPPON PRINTING CO LTD
发明人： KATANO SEIJI , ATSUMI MASATAKA
IPC分类号： G03F5/20

52. 发明专利

JPS5953536B2 失效
公开(公告)号：JPS5953536B2
公开(公告)日：1984-12-25
申请号：JP2523277
申请日：1977-03-08
申请人： DAINIPPON PRINTING CO LTD
发明人： SHIMADA YOSHINOBU
IPC分类号： G03F5/20 , G03F1/00 , G03F7/00

53. 发明专利

JPS5949575B2 JPS5949575B2 - 失效
公开(公告)号：JPS5949575B2
公开(公告)日：1984-12-04
申请号：JP7713678
申请日：1978-06-26
申请人： Toppan Printing Co Ltd
发明人： KUMANO TAIZO
IPC分类号： G03F5/20
CPC分类号： G03F5/20

54. 发明专利

JPS59135470A Input device for halftone original 失效
标题翻译：用于牛皮原液的输入装置
公开(公告)号：JPS59135470A
公开(公告)日：1984-08-03
申请号：JP1019883
申请日：1983-01-25
申请人： Toppan Printing Co Ltd
发明人： MATSUNAGA TAIZOU
IPC分类号： H04N1/405 , G03F5/00 , G03F5/20 , G03F5/22
CPC分类号： G03F5/00
摘要： PURPOSE:To decrease generation of moire and to enable regeneration of a sharp image without affecting the angle of a halftone original and without deviating focus by forming an aperture of a scanning input device into a circular shape having a prescribed size. CONSTITUTION:An aperture 5 of an optical system which scans a halftone original 3 has a circular shape of such a size at which the circular picture element having the same area as the area of a square having the side corresponding to a screen pitch A can be inputted to a photoelectric tube 7. The difference in the rates at which picture elements 40, 41 having the centers of picture elements coinciding respectively with the centers of a black part 10 and a white part 11 occupy the respective black parts is small and the generation of moire is decreased without affecting the screen angle of the original. The reproduction of a sharp image is thus made possible without affecting the angle of the halftone original and without deviating the focus.
摘要翻译：目的：通过将扫描输入装置的孔径形成为具有规定尺寸的圆形形状，可以减少莫尔条纹的产生并且能够不影响半色调原稿的角度而不会偏离焦点。构成：扫描半色调原稿3的光学系统的光圈5具有这样一种尺寸的圆形形状，其中具有与具有与屏幕间距A对应的一侧的正方形的面积相同的面积的圆形图像可以是输入到光电管7中。具有与黑色部分10和白色部分11的中心分别重叠的像素中心的图像元素40,41占据各个黑色部分的速率差异小，并且产生的莫尔条纹减少而不影响原稿的屏幕角度。因此，可以在不影响半色调原版的角度并且不偏离焦点的情况下实现清晰图像的再现。

55. 发明专利

JPS5848089B2 JPS5848089B2 - 失效
公开(公告)号：JPS5848089B2
公开(公告)日：1983-10-26
申请号：JP12681075
申请日：1975-10-21
申请人： Toppan Printing Co Ltd
发明人： HONMA KOKICHI , WATANABE DAINOSUKE
IPC分类号： G03F5/20
CPC分类号： G03F5/20

56. 发明专利

JPS5833546B2 失效
公开(公告)号：JPS5833546B2
公开(公告)日：1983-07-20
申请号：JP6446574
申请日：1974-06-06
申请人： TOPPAN PRINTING CO LTD
发明人： HONMA KOKICHI
IPC分类号： G03F1/00 , G03F1/88 , G03F5/20 , G03F7/00

57. 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.

58. 发明专利

JPS5736860B2 JPS5736860B2 - 失效
公开(公告)号：JPS5736860B2
公开(公告)日：1982-08-06
申请号：JP2104176
申请日：1976-02-27
IPC分类号： G03F1/00 , B41C1/02 , B41C1/04 , G03F5/20 , H04N1/06 , H04N1/36 , H04N1/405
CPC分类号： H04N1/0678 , H04N1/06 , H04N1/36
摘要： 1532704 Facsimile DR-ING RUDOLF HELL GmbH 27 Feb 1976 [28 Feb 1975] 07918/76 Heading H4F Printing cylinders 2, Fig. 1, of various diameters are engraved for subsequent production of half tone facsimiles, by apparatus comprising a permanent scanning drum I having a diameter greater than that of the largest printing cylinder to be employed, and on which originals 12 of varying sizes are mounted for "opto electronic" scanning. The drum 1 and cylinder 2 are rigidly coupled and driven by a synchronous motor 4 under the control of a master clock To, 9. Scanning and engraving are performed respectively along open and closed circumferential lines with intermittent advancement of scanning head 15 and engraving tool 56 between lines. Scanning and engraving are performed under the control of clocks T 3 and T 4 respectively derived from the master clock by dividers 40 and 57 and incorporates inter line phase reversal 46 and 61 to generate a standard gravure screen pattern. Successive line scans of original 12 are initiated at reference line 70; in response to a delayed signal derived from optoelectric monitoring of a reference mark 73. A user operable control 88 defines the circumferential extent of the line scan which is always less than the total drum circumference. During axial advancement of the engraving tool 56, cylinder 2 continues to rotate so that engraving of each line does not generally commence at any refence circumferential position. This results in the need for picture line storage means 28 incorporating specialized data handling control. The data handling requirements are further complicated by the fact that the line engraving period is slightly in excess of the period of rotation of the cylinder. Storage means 28 incorporates two line stores operated alternately and oppositely in loading and unloading modes. An indexing signal, indicative of the cylinder's instantaneous angular disposition, is received by store 28 and converted into an address relating to the stored data location of the requisite commencing element to be engraved. After several revolutions the compounded delay between engraving and scanning exceeds one revolution period. In this case it is necessary (in order to avoid attempting to operate one of the line stores simultaneously in the load and unload mode) to defer subsequent line scanning for one revolution period. This delay occurs since advancement of the scanning head 15 takes place while that part of the drum 1 not carrying the original 12 passes thereby, whereas engraving of cylinder 2 is interrupted after each complete closed line had been engraved. In another embodiment, Fig. 5 (not shown) provision is made for engraving a plurality of "repeats" in the circumferential direction (i.e. along a line). In this case each line of the original is still scanned in one revolution of drum 1 and in the related engraving revolution of cylinder 2 the stored data is read out for engraving as often as required. Axial pattern repetition is achieved by rescanning of the original. In another embodiment, Fig. 6 (not shown) a plurality of picture originals are mounted axially on the scanning drum from which simultaneous engraving of a common printing cylinder with the various images is derived. The engraving tool may comprise an electron beam or a laser.

59. 发明专利

JPS57122441A Screen for gravure and its production 失效
标题翻译：筛选及其生产画面
公开(公告)号：JPS57122441A
公开(公告)日：1982-07-30
申请号：JP821281
申请日：1981-01-22
申请人： Toppan Printing Co Ltd
发明人： TANAKA YOUICHI , MASUDA TOSHIAKI
IPC分类号： G03F5/12 , G03F5/20
CPC分类号： G03F5/20 , G03F5/12
摘要： PURPOSE: To prevent the generation of moires between screens for gravure or between the screen for gravure and a halftone positive by forming irregular polygonal patterns of areas changing irregularly within a prescribed range.
CONSTITUTION: The dots in the cell parts of a screen for gravure consist of irregular polygons, and the length of transparent or opaque straight lines forming the polygon changes irregularly within a prescribed range. The areas of said irregualr polygon change irregularly within a prescribed range; in addition, polygons having different numbers of angle are included. To obtain said screen, the points of intersection of the repetitive patterns of a regular polygon are beforehand recorded. Next, the irregularities within a prescribed range are given and the new points corresponding to each of points of intersection are determined and recorded. These new points are connected to form polygonal patterns. Thence, the areas thereof are determined and are so corrected as to come within a prescribed range.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了防止在凹版印刷之间产生摩擦，或者通过在规定范围内不规则地变化的不规则多边形图案形成不规则的多边形图案，在凹版印刷的屏幕和中间色调之间产生阳光。构成：用于凹版的屏幕的单元部分中的点由不规则多边形组成，并且形成多边形的透明或不透明直线的长度在规定范围内不规则地变化。所述不规则多边形的面积在规定范围内不规则地变化; 另外还包括具有不同角度数的多边形。为了获得所述屏幕，预先记录正多边形的重复图案的交点。接下来，给出规定范围内的不规则度，并且确定和记录与每个交点相对应的新点。这些新点连接形成多边形图案。因此，其面积被确定并且被校正为在规定范围内。

60. 发明专利

JPS5742047A Halftone gravure plate making method 失效
标题翻译： HALFTONE GRAVURE板制作方法
公开(公告)号：JPS5742047A
公开(公告)日：1982-03-09
申请号：JP11871280
申请日：1980-08-28
申请人： Toppan Printing Co Ltd
发明人： SUZUKI TERUO
IPC分类号： G03F1/00 , G03F5/20 , G03F7/00
CPC分类号： G03F5/20
摘要： PURPOSE: To obtain a gravure plate faithful to an oiginal manuscript by reversing a halftone manuscript to a continuous tone film and making halftone photography of the reversed halftone positive as a manuscript onto a photosensitive film by stopping down a lens to the disappearance of the dots of the original and using a contact screen.
CONSTITUTION: For example, a halftone positive 1 for offset is contact-printed and reversed on a film 2 for a soft continous tone, whereby a halftone negative 2' is made. Next, the negative 2' is photographed onto a photosensitive film 5 by using a contact screen 4 having a desired angle, screen ruling, and dot shape to erase the dots of the negative 2' and by stopping down a lens 3 of a camera at a desired magnification, whereby a new halftone positve 5' is obtained. On the other hand, a gravure screen 7 is placed on a photosensitive resist forming material (carbon tissue) 6 in close contact therewith, and is irradiated from an arrow direction, whereby the screen 7 is printed on the material 6. A clearance is provided between this material 6 and the halftone positive 5' by a transparent film 8 or the like, and the positive is printed thereto from an arrow diection. The tissue 6 having undergone 3 times of the light irradiation is transferred to a cylinder for gravure plate and is developed by warm water treatment, after which it is etched with an FeCl
3 soln., whereby a gravure printing plate is obtained.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过将半色调手稿反转到连续色调膜上，获得凹版，通过将半色调手稿反转到连续色调膜上，将半色调的半色调拍摄作为手稿正面放在感光胶片上，方法是将镜头停留在点的消失原来并使用联系人屏幕。构成：例如，用于偏移的半色调正1被接触印刷并且在胶片2上被反转以获得柔软的连续色调，由此制成半色调负2'。接下来，通过使用具有期望的角度，屏幕尺度和点形状的接触屏幕4将负2'拍摄到感光膜5上以擦除负2'的点，并且通过将相机的透镜3停止在期望的放大倍率，由此获得新的半色调5'。另一方面，将凹版屏7放置在与其紧密接触的感光性抗蚀剂形成材料（碳组织）6上，并从箭头方向照射，从而将屏幕7印刷在材料6上。提供间隙通过透明膜8等在该材料6和半色调正5'之间，并且从箭头所示向其印刷正。已经经过3次光照射的组织6被转移到用于凹印板的圆筒上，并通过温水处理显影，然后用FeCl 3溶胶蚀刻，由此获得凹版印刷版。

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