Image reading apparatus

Abstract

A reduction optical system including a lens 12 and a mirror 13, a CCD image sensor 11 and a frame including a frame member 4 for accommodating the reduction optical system and the CCD image sensor are integrated to constitute an image reading unit 2, and the unit 2 is covered with a cover member 1. A lamp 3 is provided on the cover member 1 and spatially isolated from the inner space of the unit 2. A slit 16 of the cover member 1 is closed by a transparent member 10. The lamp 3 emits the light 15a onto a document 17 on a document setting glass 18, and the reflected light 15b from the document 17 enters the CCD image sensor 11 through the transparent member 10, slit 16, slit 4′, mirror 13 and the lens 12 and is converted into electrical information, thereby reading image information of the document 17.

Dependencies are inferred from the claim text.