Patent ID: 7440604
Filing Date: 2008-10-21
Classification: G07D

Abstract:
1. An image detector for bank notes comprising a pair of detector units, the detector comprising: a first image detection sensor configured to detect an image of a first detection area set on one side of a first detector unit; a first light emitting device configured to irradiate light towards said first detection area; a second image detection sensor configured to detect an image of a second detection area on one side of a second detector unit; a second light emitting device configured to irradiate light towards a said second detection area set on one side of said second detector unit, the second detection area being located in a different location from said first detection area; and said first image detection sensor and said first light emitting device being disposed in the first detector unit and said second detection sensor and said second light emitting device being disposed in the second detector unit; wherein: a pair of said first and second detector units are disposed so as to oppose one another across a bank note transportation path, in a manner which enables said first image detection sensor in said first detection unit to detect an image of said second detection area and said second image detection sensor in said second detection unit to detect an image of said first detection area; and a distance, from one end in the bank note transportation direction of said bank note transportation path of said image detector to said first detection area, and a distance, from the other end in the bank note transportation direction of the bank note transportation path of the image detector to the second detection area, are equal.