Patent ID: 9137421
Filing Date: 2015-09-15
Classification: H04N

Abstract:
1. An image reading device for reading an image of an object, comprising: a multi-color light source alternatively emitting light rays of at least three colors; at least three monochrome image sensor rows for sensing the image; at least one lens row provided between the object and the at least three monochrome image sensor rows, wherein the light rays which are reflected from the object are directly imaged onto the at least three monochrome image sensor rows through the at least one lens row; a driving member driving the multi-color light source, the at least three monochrome image sensor rows, and the at least one lens row to move simultaneously in a same direction; and a control circuit electrically connected to the multi-color light source to control the multi-color light source to emit the light rays of the at least three colors, wherein every time the multi-color light source, the at least three monochrome image sensor rows, and the at least one lens row are moved for a predetermined distance, a light ray of one of the at least three colors is switched into a light ray of another of the at least three colors, and wherein switching between any two colors occurs only once every time the multi-color light source, the at least three image sensor rows, and the at least one lens row are moved for the predetermined distance; and wherein the light rays of the at least three colors are sequentially switched in a predetermined order.