Patent ID: 7711175
Filing Date: 2010-05-04
Classification: G06Q,G07D

Abstract:
1. An image reading apparatus comprising: a carrying unit that carries an irradiated object having a light reflecting portion and a light transmitting portion in a carrying direction; a first light source arranged on one face side of the irradiated object that irradiates light to a light irradiated portion of a path of carrying the irradiated object; a second light source arranged on other face side of the irradiated object that irradiates light to the light irradiated portion; a detecting unit arranged to be spaced apart from the light irradiated portion by a predetermined distance in a direction reverse to the carrying direction that detects the light transmitting portion of the irradiated object; a lighting control unit that controls to put on the second light source during a time period of passing the light transmitting portion through the light irradiated portion by the detecting unit; a lens array arranged on the one face side of the irradiated object that converges both reflecting light reflected by the light reflecting portion of the irradiated object at the light irradiated portion and transmitting light transmitting through the light transmitting portion; and a sensor that receives both the reflecting and transmitting light converged by the lens array.