A spectrophotometer for providing an image of a radiation scattering medium having one or more radiation attenuating constituents is disclosed herein. The spectrophotometer includes a light source for illuminating the scattering medium with electromagnetic radiation of at least one wavelength. In one...http://www.google.de/patents/US5413098?utm_source=gb-gplus-sharePatent US5413098 - Path constrained spectrophotometer and method for determination of spatial distribution of light or other radiation scattering and absorbing substances in a radiation scattering medium
