Patent ID: 7791023

Claim:
An electron microscope applied device comprising: an electron gun for irradiating an electron beam on a specimen; a specimen holder for mounting the specimen; an electron biprism arranged at a position through which the electron beam having transmitted through said specimen passes; an imaging unit for imaging an interference fringe of components of the electron beam passed through said electron biprism or a transmission electron image of said specimen; and an information processing unit having at least an input device wherein said information processing unit calculates an interval of the interference fringe based on values of a spatial resolution and an interference area inputted via said input device, and calculates amounts of movements of said electron biprism in an optical axis of the electron beam and/or amounts of movements of said specimen holder in an optical axis of the electron beam, so as to comply with information of the interference area inputted and the interval of the interferences fringe calculated.