| 摘要 |
<p>A collimator (10), in combination with a source of curing radiation (30), for use in a process for curing a photosensitive resin disposed on a working surface and having a machine direction (MD) and a cross-machine direction (CD) perpendicular to said machine direction, is disclosed. The preferred collimator (10) comprises a plurality of mutually parallel collimating elements (11) spaced from one another in the machine direction between the source of radiation and the resin. Each of the collimating (11) elements is substantially perpendicular to the working surface, and every two of the mutually adjacent collimating elements have a machine-directional clearance (A) and a cross-machine-directional clearance (B) therebetween. The collimating elements and the machine direction form an acute angle therebetween such that the machine-directional clearance (A) is greater than the cross-machine directional clearance (B). This allows to provide a greater collimation of the curing radiation in the cross-machine direction relative to the machine direction.</p> |
