Patent ID: 7551821
Filing Date: 2009-06-23
Classification: A61B,G01J,G02B

Abstract:
1. A method of imaging and collecting Raman spectra from a sample, the method comprising: transmitting laser light of a specific laser excitation wavelength from a first source to a sample via one or more laser illuminating fibers; positioning a first portion of a spectral filter between said one or more laser illumination fibers and said sample for transmitting said laser light of said specific laser excitation wavelength and rejecting light of other wavelengths; positioning a second portion of the spectral filter between said sample and a plurality of collection fibers for transmitting wavelengths of light other than said specific laser excitation wavelength; and receiving light scattered from said sample via said plurality of collection fibers; wherein the spectral filter is spatially patterned into the first portion for filtering said laser light and into the second portion for transmitting light scattered or reflected by said sample to said plurality of collection fibers.