Patent ID: 8348042
Filing Date: 2013-01-08
Classification: G07D

Abstract:
1. An optical sensing device for detecting optical features of valuable papers, comprising first and second triplex assemblies positioned in a spaced relation to each other, in the vicinity of and on the opposite sides of a passageway for guiding the transported valuable paper, wherein one of the first and second triplex assemblies has an upper case, first and second light emitting elements located in the upper case for emitting first and second lights, and a first light receiving element located in the upper case adjacent to the first and second light emitting elements, the upper case has partitions for keeping the first and second light emitting elements and first light receiving element in an appropriately spaced relation to each other, the other of the first and second triplex assemblies has a lower case, a third light emitting element located in the lower case for emitting a third light, and second and third light receiving elements located in the lower case adjacent to the third light emitting element, the lower case has partitions for keeping the third light emitting element and second and third light receiving elements in an appropriately spaced relation to each other, the first light receiving element receives the first and second lights from the first and second light emitting elements reflected on the valuable paper and the third light from the third light emitting element penetrating the valuable paper, the second light receiving element receives the first light from the first light emitting element penetrating the valuable paper and the third light from the third light emitting element reflected on the valuable paper, and the third light receiving element receives the second light from the second light emitting element penetrating the valuable paper and the third light from the third light emitting element reflected on the valuable paper.