US Patent 7366365 Tissue scanning apparatus and method

A system for multispectral confocal mapping of a tissue, comprising: a light source; an optical fiber having an aperture providing a confocal pinhole, a scanner being free-space coupled to said aperture and operative to scan the tissue and provide intensity signals for each of a plurality of points therein; a switch or modulator operative to convert input signals to optical pulses; a reflector that receives the optical pulses and provides a temporal sequence of wavelength selective reflections; and, a detector optically coupled to receive the temporal sequence of wavelength selective reflections.