Image information read-out apparatus

摘要

An image read-out apparatus includes a reading light projecting system which projects a line reading light beam onto a image-bearing medium, and an image-bearing light detecting system having a line sensor which receives image-bearing light emitted from the portion exposed to the line reading beam and converts the amount of image-bearing light to an electric signal. The image-bearing light detecting system includes an erecting unit optical system which focuses the image-bearing light on the line sensor and an optical element array formed by a plurality of first and second optical elements which are alternately arranged along the erecting unit optical system and lead the image-bearing light passing through the erecting unit optical system in different directions. The line sensor has a first sensor which receives light led by the first optical elements and a second sensor which receives light led by the second optical elements.