Patent ID: 7952722
Filing Date: 2011-05-31
Classification: A61B,G01N

Abstract:
1. An optical image measurement device comprising: a light source configured to output a light having low temporal coherence and low spatial coherence; a beam splitter configured to split the light into a signal light and a reference light and superimpose the signal light having passed through a measured object and the reference light having passed through a reference object, thereby generating an interference light; a changing part configured to change a beam diameter of the interference light projected onto a light receiving face so that a size of a spatial coherent region of the interference light becomes equal to or larger than a size of a light receiving element on the light receiving face; a light receiver, having a receiving surface on which a plurality of receiving elements are two-dimensionally arranged, configured to receive the interference light on the receiving surface and output an electric signal; and a forming part configured to form an image of the measured object based on the electric signal.