The optical switch comprises an input collimator, an output collimator, an input mirror, an output mirror and a converging optical element. The input collimator receives, collimates and outputs an input light beam. The input mirror is arranged to receive the light beam from the input collimator. The...http://www.google.co.uk/patents/US6711319?utm_source=gb-gplus-sharePatent US6711319 - Optical switch with converging optical element
