An in vivo imaging device having an illumination system that creates a virtual source within a tissue region of a subject in a non-invasive manner. The illumination system transforms a maximum amount of illumination energy from a light source into a high contrast illumination pattern. The illumination...http://www.google.fr/patents/US6650916?utm_source=gb-gplus-shareBrevet US6650916 - Method and apparatus for providing high contrast imaging
Method and apparatus for providing high contrast imaging