| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical image measuring method using a light coherence tomography apparatus of extracting an image only of an interference signal component by removing the component due to background noise light by applying the inter-pixel operation of an image, which contains a spatial interference fringe, automatically formed by predetermined spatial frequency only by acquiring one spatial interference image without requiring a detailed movable mirror by an electrostatic method without relying on mechanical operation, and also to provide an optical image measuring device. SOLUTION: In an interference optical system using a light source with a wide band wavelength range, a reference light wave is passed through a diffraction grating 9 and a diffracted light wave, which is delayed in dependence on the incident position of the diffraction grating 9 and has a spatial delay correlation wave front contributing to the interference with a matter light wave, which forms an angle with respect to the equal phase front of diffracted light, is formed to be combined with and allowed to interfere with the reference light wave so as to form a predetermined angle with respect to the matter light wave. Optical array sensor elements 12 are arranged at every appropriate phase position of the spatial cycle of the spatial interference fringe due to these two luminous fluxes and the signals at every phase from the optical array sensor elements 12 are detected and mutually operated to draw the interference signal intensity distribution or phase distribution of two luminous fluxes in a real time. COPYRIGHT: (C)2006,JPO&NCIPI
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