Light from an object such as a cell moving through an imaging system is collected and dispersed so that it is imaged onto a plurality of separate detectors. The light is spectrally dispersed by a plurality of spaced-apart dichroic reflectors, each detector receiving light from a different one of the...http://www.google.de/patents/US6975400?utm_source=gb-gplus-sharePatent US6975400 - Imaging and analyzing parameters of small moving objects such as cells