A device is proposed to symmetrize the radiation from one or from several linear optical emitters. The device possesses per emitter 1, 1a, 1b a cylindrical lens optical unit 2, 2a, 2b with one or more cylindrical lenses, which collimate each light beam in the y-direction, where by rotating at least one...http://www.google.com.au/patents/US6680800?utm_source=gb-gplus-sharePatent US6680800 - Device for symmetrizing the radiation emitted by linear optical transmitters
