Patent ID: 7706582
Filing Date: 2010-04-27
Classification: G06K,G07C

Abstract:
1. A personal identification apparatus comprising: a light source for irradiating light to a hand, a light source opening placed between the light source and the hand, an imaging capture unit for creating an image of transmitted light from the hand, an imaging unit opening placed between the hand and the imaging capture unit, and a processing unit for extracting a vein pattern of the hand from the image and to compare with a registered pattern, wherein said light source opening and said imaging unit opening are transparent at least to the light transmitted from the light source, and at least the light source, the light source opening, the imaging capture unit and the imaging unit opening are placed within an enclosure, wherein said light source opening and said imaging unit opening are an optical filter that reduced light in the visible region, and wherein a structure is located between the light source opening and the image unit opening for limiting transmission of the light from the light source opening so that an imaging plane of the finger is not irradiated by the light from the light source opening.