An apparatus for generating a coherent beam array from a single light source using independently switchable 45-degree mirrors. In the independent coherent beam array generating apparatus, multiple coherent beams can be generated from a single light source by selectively rotating micro mirrors of two...http://www.google.co.uk/patents/US6292300?utm_source=gb-gplus-sharePatent US6292300 - Apparatus for generating independent coherent beam array using 45-degree mirrors
