-
公开(公告)号：US4317982A
公开(公告)日：1982-03-02
申请号：US35688
申请日：1979-05-03
CPC分类号： H01J33/02
摘要： An orifice for coupling a highly-evacuated electron beam gun to a rotating print form cylinder for engraving is provided such that the gun has a rigid cover with an opening for the electron beam at its end facing the print form cylinder and a flexible band is arranged at the cover which partially surrounds the print form cylinder. The band is pivoted at the cover and at least one of the pivot points is elastically designed and pivoting occurs with the aid of springs which are adjustable with respect to the spring force.
摘要翻译： 提供了一种用于将高度抽真空的电子束枪耦合到用于雕刻的旋转印刷版圆柱体的孔，使得枪具有刚性盖，其刚性盖在其面向印刷版圆柱体的端部处具有用于电子束的开口，并且布置柔性带 在部分包围印刷版滚筒的盖子上。 带子在盖子处枢转，并且枢转点中的至少一个被弹性地设计并且借助于相对于弹簧力可调节的弹簧发生枢转。
-
公开(公告)号：US4393295A
公开(公告)日：1983-07-12
申请号：US240869
申请日：1981-03-05
CPC分类号： B41C1/05 , B23K15/08 , B44B7/00 , H01J37/302 , H01J37/31
摘要： Apparatus and method for engraving with an electron beam such that depressions of different sizes can be generated in the surface of a workpiece and the different sizes of depressions are produced by an electron beam and wherein during periods when depressions are not to be formed the electron beam remains on but is defocused so that it does not form depressions. A modification of the invention provides that at times when the beam is not being used to cut depressions that it is pulsed wherein the short pulses of the beam which engage the work surface do not do any cutting.
摘要翻译： 用电子束雕刻的装置和方法，使得可以在工件的表面中产生不同尺寸的凹陷，并且通过电子束产生不同大小的凹陷，并且其中在不形成凹陷的期间，电子束 仍然存在，但散焦，使其不会形成凹陷。 本发明的修改提供了当光束不被用于切割脉冲的凹陷时，其中接合工作表面的光束的短脉冲不进行任何切割。
-
公开(公告)号：US4013831A
公开(公告)日：1977-03-22
申请号：US666494
申请日：1976-03-12
申请人： Jurgen Dolves , Dieter Grieger
发明人： Jurgen Dolves , Dieter Grieger
CPC分类号： B41C1/04 , H04N1/40025
摘要： The invention relates to a method for the production of a printing form by the scanning point-by-point and line-by-line of an image pattern along successive cylindrical peripheral image lines and engraving cavities along corresponding cylindrical peripheral engraving lines by an engraving member having an engraving needle as a cutting tool, and includes the steps of generating image signals from the image pattern from along one of the cylindrical peripheral image lines, and engraving a number of cavities at the beginning of an engraving line to depths substantially less than the depths defined by the corresponding image signals.Then the other cavities of said engraving line are engraved to depths which are defined by the nominal values.Subsequently the incomplete cavities of said engraving line are re-engraved in accordance with the corresponding image signals.Another object of the invention is to control the movement of said engraving needle into an engraving position for engraving cavities and into a rest position after an engraving line has been completed.
-
4.发明授权Method and device for measuring the density of color layers of printing inks that are still wet 失效用于测量仍然湿润的印刷油墨的彩色层的密度的方法和装置
公开(公告)号：US4575249A
公开(公告)日：1986-03-11
申请号：US477976
申请日：1983-03-23
申请人： Dieter Grieger
发明人： Dieter Grieger
CPC分类号： G01N21/474 , G01N21/21 , G01N21/47
摘要： A method and device for measuring the density of color layers of printing inks that are still wet is provided in which a polarized light source is directed toward the color layer along an axis of illumination which is inclined at the Brewster angle relative to the surface normal line of the color layer.
摘要翻译： 提供了一种用于测量仍然是湿润的印刷油墨的着色层密度的方法和装置，其中偏振光源沿着相对于表面法线倾斜布鲁斯特角度的照明轴线朝着彩色层 的颜色层。
-
-
-
搜索结果
4 条记录 (耗时 0.015 秒)
