Patents Assigned to Fingerpin AG
  • Device for imaging the papillary lines of a finger
    Patent number: 7315632
    Abstract: Device has a transparent body (1) with a support surface (2). Light is incident on the surface at an angle less than that required for total internal reflection. In the areas of the fingerprint ridges evanescent fields are excited. Propagated light (12-14) is reflected from the surface (2) and incident on a detector (22) at angles within the angular range for total internal reflection.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: January 1, 2008
    Assignee: Fingerpin AG
    Inventors: Martin Spycher, Anne-Sophie Golsong Roosdorp