Light for optical interference tomography for biological tissue measuring generator and optical coherence tomography device for biological tissue measured

To ensure that the vicinity of the entire form of corner consisting of the sclera and cornea and iris can be sufficiently measured by sharp tomographic image has been strongly desired. Together can be emitted while switching the wavelength of light in the region of 1.53～1.85Myuemu, the coherence length in air of the light is not less 1.4mm or more, 1.2 × 10