Patent ID: 8437050
Filing Date: 2013-05-07
Classification: H04N

Abstract:
1. An illuminator comprising: a light source unit; and a light guiding member that guides a light beam to an original disposed on an original plate, wherein, in a sub scanning section, an intersection of a center axis of a light emitting surface of the light source unit and the original plate is separated from a reading position of the original in a sub scanning direction, wherein the light guiding member includes: wherein in the sub scanning section, the light beam having the highest light intensity in the light beams outputted from the light source unit is deflected at the incident surface toward the reading position of the original with respect to a center axis of the light emitting surface, and wherein in the sub scanning section, including the reading position, the light beam having the highest light intensity reaches onto the original plate at a position away from the reading position in a side where the center axis of the light emitting surface intersects with the original plate by farther a half of a length in the sub scanning direction of the light emitting surface.