公开(公告)号：WO1995006387A1

公开(公告)日：1995-03-02

申请号：PCT/US1994008890

申请日：1994-08-08

Applicant: INTERGRAPH CORPORATION

Inventor： INTERGRAPH CORPORATION ,  WARNER, Andrew ,  PINARD, Alward, I. ,  THIDEMANN, Harold

IPC: H04N01/50

CPC classification number: B41J19/20 ,  H04N1/502

Abstract: A system that permits the plotting of any combination of several colors in one pass. Three differently colored light sources are provided, and thus one, two or three colors may be plotted at the same time. An apparatus is provided for causing relative movement between the scanning head and the substrate along each of the two axes of the substrate. Preferably, the first axis is disposed circumferentially about a cylinder, on which the substrate is situated, the cylinder having a central axis, and the second axis is disposed approximately parallel to the central axis. The system includes deflection means, preferably acousto-optical modulators, for deflecting along a path a portion of each beam of light by an amount dependent upon the frequency of a signal that is present at the deflection means' input. The system permits the plotting of a multicolor proof and the plotting of separates for making printing plates, both the proof and the separates being formed by halftone dots.

Abstract translation: 允许在一次通过中绘制几种颜色的任意组合的系统。 提供三种不同颜色的光源，因此可以同时绘制一种，两种或三种颜色。 提供了一种装置，用于沿着基板的两个轴线沿着扫描头和基板之间的相对运动。 优选地，第一轴线围绕衬底围绕圆柱体设置，圆柱体具有中心轴线，并且第二轴线大致平行于中心轴线设置。 该系统包括偏转装置，优选声光调制器，用于沿光路偏转每个光束的一部分，取决于存在于偏转装置输入端的信号的频率。 该系统允许绘制多色证明和用于制作印版的分隔图，无论是通过半色调点形成的证明和分离。

公开(公告)号：EP0714578A1

公开(公告)日：1996-06-05

申请号：EP94925199.0

申请日：1994-08-08

Applicant: Intergraph Corporation

Inventor： WARNER, Andrew ,  PINARD, Alward, I. ,  THIDEMANN, Harold

IPC: B41C1 ,  H04N1

CPC classification number: B41J19/20 ,  H04N1/502

Abstract: A system that permits the plotting of any combination of several colors in one pass. Three differently colored light sources are provided, and thus one, two or three colors may be plotted at the same time. An apparatus is provided for causing relative movement between the scanning head and the substrate along each of the two axes of the substrate. Preferably, the first axis is disposed circumferentially about a cylinder, on which the substrate is situated, the cylinder having a central axis, and the second axis is disposed approximately parallel to the central axis. The system includes deflection means, preferably acousto-optical modulators, for deflecting along a path a portion of each beam of light by an amount dependent upon the frequency of a signal that is present at the deflection means' input. The system permits the plotting of a multicolor proof and the plotting of separates for making printing plates, both the proof and the separates being formed by halftone dots.