Patent ID: 8027068
Filing Date: 2011-09-27
Classification: G03B

Abstract:
1. An image-capturing unit for capturing image information from documents on an image-capturing platen, the image-capturing unit comprising: a light source for irradiating documents with light; a mirror group composed of a plurality of mirrors, for reflecting light reflected from a document; a final mirror for reflecting light reflected by said mirror group; a lens for condensing light incident on said lens via the final mirror; an image sensor for photoelectrically converting light condensed on said sensor by the lens; a sensor board on which said image sensor is mounted; and a synthetic-resin frame into which said light source, said mirror group, said lens, and said sensor board are mounted; wherein said frame includes a light-source anchoring portion is formed on an upper side of said top plate of said upper-frame, in order for said light source to be anchored thereto, and said light source is anchored along the upper side of said upper-frame top plate to said light-source anchoring portion; a lens support member supporting said lens, said lens as supported by said lens support member, and said sensor board on which said image sensor is mounted are each mounted on a lower side of said top plate; said light source is disposed along one edge of said upper frame with respect to said lens, and said sensor board is disposed on an opposite edge of said upper frame with respect to said lens; and a mirror support member, formed either on the lower side of said top plate, or on one of said sidewalls of, said upper frame, for supporting said mirror group from below said lens.