| Beam Expander |
 Beam expander’s are used to collimate the natural divergence of the raw laser beam and/or to generate a particular beam diameter. Generally, this beam expansion is achieved using different spherical optics and, for a few applications, the beam can even be reduced. In both cases the laser beam must be kept almost parallel over a large distance. The mirror radii are calculated from a combination of beam type, required beam diameter and the beam path length and hence, these mirrors are not available from stock and must be tailor made. ··· More ···  LT Ultra has two standard compact beam expander units with clear apertures of 40 mm (BE-40) and 60 mm (BE-60) respectively with custom apertures on request. The metal optics are generally water cooled and available both with or without a highly reflective (SEC) coating. Both optical units are housed in a stable fixing with levelling adjustments on two axes - in addition, the second optical unit can be shifted linearly for fine-tuning purposes. Cross-hair targets are also available as an option to assist with the alignment. A safety switch and flange polish of the program. The enclosures are splash proof, and have a rapid change interface for backflushing gas in the cooling circuit. |
