A medical instrument that comprises: a first-stage optic responsive to a tissue surface of a patient; a spectral separator optically responsive to the first stage optic and having a control input; an imaging sensor optically responsive to the spectral separator and having an image data output; and a...http://www.google.se/patents/US8175688?utm_source=gb-gplus-sharePatent US8175688 - Multispectral/hyperspectral medical instrument
