Contact type image sensor having original support member with a reflecting surface

摘要

A contact type image sensor comprises: a light source to emit a light with a predetermined inclination angle for the direction of the normal line of the surface of an original at the position of a read line in order to irradiate the light from both sides to the read line by one light source; an original supporting member to support the original in order to lead the light from the light source to the read line; and a photoelectric converting device section to receive the light from the original surface. At least a part of the original supporting member locating on the side opposite to the arrangement side of the light source with respect to the read line has a reflecting surface for reflecting a part of the light from the light source and leading to the read line.