Biological material is characterized by illuminating the material with a beam of light, measuring light scattered from the material and then determining the condition of the material using the measurements. In one embodiment the angular line shape of the backscattered light is measured and then used...http://www.google.fr/patents/US5369496?utm_source=gb-gplus-shareBrevet US5369496 - Noninvasive method and apparatus for characterizing biological materials
Noninvasive method and apparatus for characterizing biological materials
