Patent ID: 9123451
Filing Date: 2015-09-01
Classification: A61B,G21K

Abstract:
1. A Talbot interferometer comprising: a diffraction grating configured to produce an interference pattern by diffracting diverging light from a light source; an absorption grating configured to block part of the interference pattern; a detector configured to detect light transmitted through the absorption grating, wherein the detector performs a first detection and a second detection; and a computing unit configured to obtain information of a sample based on detection results obtained by the detector in the first detection and the second detection, wherein the diffraction grating and the absorption grating move by translational movement along a plane which intersects an optical axis such that the diffraction grating and the absorption grating are displaced away from or towards the optical axis for a same distance in a period of time between the first detection and the second detection, while the detector is stationary.