Abstract: “A micro beam collimator for compressing beams is described, where the collimator has channel means for providing a channel having a cross section and guiding the beams from an entrance end to an exit end of the channel. The invention provides a micro beam collimator for compressing beams which allows easy adjustment of the width of the cross section of the beams while making it possible at the same time to adjust the length of the cross section of the beams. The invention forms the channel means by at least three rod members each of which having at least one bordering surface for bordering the cross section, wherein the rod members are moveable against each other along the bordering surfaces so that the geometry of the cross action is variable.

Abstract: A micro beam collimator for compressing beams is described, wherein the collimator has channel means for providing a channel having a cross section and guiding the beams from an entrance end to an exit end of the channel. The invention provides a micro beam collimator for compressing beams which allows easy adjustment of the width of the cross section of the beams while making it possible at the same time to adjust the length of the cross section of the beams. The invention forms the channel means by at least three rod members each of which having at least one bordering surface for bordering the cross section, wherein the rod members are moveable against each other along the bordering surfaces so that the geometry of the cross action is variable.