Image reading device and image forming apparatus

Abstract

An image reading device includes first light sources disposed on a first surface of a substrate to emit first illuminating light, second light sources disposed on a second surface of the substrate opposite to the first surface to emit second illuminating light, an image reading sensor, and a light guide device. The image reading sensor reads an image of a reading target in an image reading area irradiated with the first illuminating light and the second illuminating light, which have different spectroscopic characteristics. The light guide device guides the first illuminating light and the second illuminating light to the image reading area via a light guide such that a peak light amount position of the first illuminating light in the image reading area and a peak light amount position of the second illuminating light in the image reading area are substantially identical.

Dependencies are inferred from the claim text.