IMAGE SCANNER

摘要

An image scanner includes a loading track for guiding movement of a medium having a forgery-proof element that creates a light interference pattern, a loading device provided for loading the medium along the loading track, and at least one image sensor provided for acquiring image data from the medium. The image sensor includes a light source for emitting a light toward the medium, a light receiving part for receiving the light reflected from the medium, a first polarizer arranged in front of the light source for polarizing the light emitted from the light source, a second polarizer disposed in front of the light receiving part with a phase difference of 90 degrees with respect to the first polarizer for polarizing the light reflected from the medium, and a lens disposed between the light receiving part and the second polarizer for leading the polarized light to the light receiving part.