SYSTEM AND METHOD OF CAPTURING AND PRODUCING BIOMETRIC-MATCHING QUALITY FINGERPRINTS AND OTHER TYPES OF DACTYLOGRAPHIC IMAGES WITH A MOBILE DEVICE

摘要

An optical module includes a housing with a lighting mechanism, an aperture formed therein, and a window that frames a transparent surface adapted to contact a skin surface of a person, for example, a fingertip. The lighting mechanism provides light to illuminate the skin surface placed upon the transparent surface. A prism has a first side facing the lighting mechanism, a second side at the window, and a third side through which a dactylographic image exits the prism. One or more light reflecting surfaces are disposed within the housing to reflect the dactylographic image towards the housing aperture. The optical module is coupled to a mobile device having a camera, with the aperture of the housing aligning with a lens of the camera. The camera acquires the dactylographic image, and the mobile device adjusts this dactylographic image to produce a dactylographic image suitable for biometric matching.

主权项

1. An optical module comprising:
a housing with a lighting mechanism, a side with an aperture formed therein, and a window framing a transparent surface used to contact a skin surface of a person, the lighting mechanism being adapted to provide light to illuminate the skin surface of the person placed upon the transparent surface; a prism having a first side facing the lighting mechanism, a second side facing the window that frames the transparent surface used to contact the skin surface of the person, and a third side through which a dactylographic image of the skin surface of the person exits the prism; and a plurality of light reflecting surfaces within the housing spatially separated from the prism, the plurality of light reflecting surfaces being disposed within the housing to reflect the dactylographic image of the skin surface of the person exiting the prism towards the aperture in the side of the housing.