System and method of capturing and producing biometric-matching quality fingerprints and other types of dactylographic images with a mobile device

A passive optical module to acquire a dactylographic image comprising:

• an attachment mechanism fixable to a device that holds the optical module at a location proximate to a camera lens of a camera;
• a housing including a side with an aperture and a window framing a transparent surface, the transparent surface to contact a skin surface of a person;
• a lighting mechanism adapted to provide light to illuminate the skin surface of the person;
• a prism having:
• a first side facing the lighting mechanism,
• a second side facing the window, and
• a third side through which an acquired 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 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 toward the camera lens.

A passive optical module to capture a dactylographic image from a person, comprising:

• a frame that mechanically couples the optical module to a smartphone in alignment with a camera lens, the optical module having a diffuser window that diffuses ambient light, the frame having an aperture, and a second window that contacts a skin surface of the person, the frame coupling the optical module to a camera of the smartphone such that the aperture of the frame portion aligns with the camera lens of the smartphone;
• a prism disposed in the frame with a first side of the prism facing the second window and a second side of the prism facing the diffuser window, wherein diffused ambient light enters the optical module through the diffuser window and illuminates the skin surface;
• and
• a second lens that focuses the dactylographic image of the skin surface exiting the prism and propagating towards the aperture for capture by the camera.

A passive optical module comprising:

• means for holding the optical module at a location proximate to a camera lens of a camera;
• a housing including a side with an aperture and a window framing a transparent surface, the transparent surface to contact a skin surface of a person;
• means for providing light to illuminate the skin surface of the person;
• a prism having:
• a first side facing the lighting mechanism,
• a second side facing the window, 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 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 toward the camera lens for capture by the camera.