公开(公告)号：WO1996034747A1

公开(公告)日：1996-11-07

申请号：PCT/DK1996000200

申请日：1996-05-01

Applicant: KRAUSE DANMARK A/S ,  PEDERSEN, Flemming, Steen

Inventor： KRAUSE DANMARK A/S

IPC: B41C01/10

CPC classification number: G03F7/24

Abstract: A laser exposure apparatus for exposing exposure material (6), such as light-sensitive offset printing plates. The apparatus comprises a relatively heavy base member and an optical scanning unit (2) employing a movable mirror for deflecting a laser beam. The base member (1) comprises a substantially semi-cylindrical exposure surface (5), on which the exposure material (6) can be placed. A bridge (7) is arranged above the base member (1), said bridge being displaceable along the base member in the longitudinal direction thereof by means of an advancing device (8), the mirror being placed on said bridge. The advancing device (8) is arranged along one side of the base member, and the bridge is mounted in a completely or almost completely balanced manner relative to the advancing device (8) by means of a counterweight (9) provided on a projecting portion (7') of the bridge (7), the centre of gravity (G) of said counterweight being placed on the other side of the advancing device (8). The bridge (7) can optionally rest on longitudinal supporting surfaces (10', 10'', 10''') on the base member (1). As a result, an increased accuracy is obtained in connection with the exposure of the exposure material.

Abstract translation: 一种用于曝光曝光材料（6）的激光曝光装置，例如光敏胶版印刷板。 该装置包括相对较重的基座部件和使用用于偏转激光束的可移动镜的光学扫描单元（2）。 基部构件（1）包括基本上半圆柱形的暴露表面（5），曝光材料（6）可以放在其上。 桥（7）布置在基座（1）的上方，所述桥可通过前进装置（8）沿其基本构件在其纵向方向上移位，所述反射镜位于所述桥上。 推进装置（8）沿着基部构件的一侧布置，并且通过设置在突出部分上的配重（9）相对于推进装置（8）以完全或几乎完全平衡的方式安装桥， （7）的重心（7'），所述配重的重心（G）位于前进装置（8）的另一侧。 桥（7）可以可选地搁置在基部构件（1）上的纵向支撑表面（10'，10“，10”）上。 结果，与曝光材料的曝光相关的是获得了更高的精度。