| 摘要 |
PROBLEM TO BE SOLVED: To provide an angular dispersed light spatial interference tomogram imaging device, capable of effectively executing optical coherence tomographic image measurement in a spactial area. SOLUTION: This tomographic imaging apparatus has a light source 21, having a broadband spectral width; an interference optical system dividing an emitted light beam into two, i.e., signal light advancing via a test object 26 and reference light advancing via an optical path different from the signal light, and spatially crossing the signal light from the test object 26 and the reference light to cause interference; an optical image forming system having an angular dispersing element disposed in a plane where the signal light are superimposed on the reference light, forming images of the signal light and the reference light which are transmitted through or reflected by the angular dispersing element on a detection face; a photosensor array 33 receiving the image-formed interference light and outputting a light detected signal, having plural photodetector elements individually outputting light reception signals; and a signal processing system integrating the plural light reception signals outputted from the photosensor array 33 and generating a signal which corresponds to each point of interest on a propagation path, inside the test object 26 or on the surface thereof.
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