PROBLEM TO BE SOLVED: To provide a confocal optical inspection device capable of acquiring information on an object with higher precision while taking distortion of an optical transmission line into consideration.SOLUTION: A confocal optical inspection device inspects an object by acquiring a confocal image of the object, and includes: a light source which emits illumination light; a first opening member which has a plurality of openings for making the illumination light emitted from the light source into a plurality of pieces of illumination light; an imaging part which acquires an image as respective pieces of illumination light reflected by the object form the image; and an information processing part which acquires a corrected confocal image by removing optical transmission distortion of the confocal optical inspection device from a TDI image obtained through a TDI operation of the imaging part by using a PSF representing previously measured optical characteristics of the confocal optical inspection device.
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