Optical CT imaging device

A diagnostic device for obtaining an optical CT image of a living specimen, said device comprising:

• a light source generating a measuring light having at least a first wavelength component and a second wavelength component which is different from said first wavelength component;
• a first light guide including a plurality of first optical fibers guiding said measuring light to predetermined irradiating input points with respect to said living specimen;
• a first light scanner supplying said measuring light to respective said first optical fibers of said first light guide in a time-sequential scanning manner;
• a second light guide including a plurality of second optical fibers receiving light transmitted from said first light guide and through sadi living specimen at predetermined irradiating output points with respect to said living specimen;
• a second light scanner connected to said second light guide selecting a light output from respective said second optical fibers of said second light guide in a time-sequential scanning manner in synchronism with a time-sequence of said first light scanner;
• a light splitter splitting said light output into said first wavelength component and said second wavelength component;
• a light detector detecting an intensity of said first wavelength component and said second wavelength component;
• and
• a data processor obtaining a tomograph image of said living specimen by processing a distribution of differences in absorption quantity between said first wavelength component and said second wavelength component detected by said light detector using a line spread function which defines an inclusion ratio of light components transmitted through optical paths other than a straight path between said irradiating input points and said irradiating output points.