An apparatus is disclosed for displaying a tissue containing a fluorescent dye at least in sections. It is proposed for the purpose of simplification to record the tissue with a number of cameras from different observation angles while omitting a beam splitter, and subsequently to produce a joint superimposed...http://www.google.de/patents/US7925331?utm_source=gb-gplus-sharePatent US7925331 - Apparatus for displaying a tissue containing a fluorescent dye