| 摘要 |
PROBLEM TO BE SOLVED: To provide a tomography and tomograph that can measure the thickness of affected parts easily and accurately by using short wave infrared light, or an invisible ray as a laser source of a confocal microscope. SOLUTION: To measure refractivity and thickness of transparent objects using interference method of low coherence light and confocal method is fundamental. The new tomography is made not only by confocal method but by OCT method. The tomograms are made after calculating the actual thickness by using formulas of a relation among a distance of interfaces, refractivity, and thickness obtained by two tomography. The distance of interfaces by OCT method is obtained by multiplying refractivity by thickness, and the one by confocal method is obtained by thickness divided by refractivity. As a result, the actual thickness is found.
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