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公开(公告)号:DE10103622A1
公开(公告)日:2002-08-08
申请号:DE10103622
申请日:2001-01-27
Applicant: TST TOUCHLESS SENSOR TECHNOLOG
Inventor: GILENKO MARK , MERBACH PETER-MICHAEL
Abstract: Device comprises an illuminating device (5, 6), an image receiver (9) with an objective (2, 4) for directing light reflected from the finger surface to the receiver. The objective comprises a plano-convex cylindrical lens (1) with a width exceeding that of a finger diameter, with the cylinder axis parallel to the finger axis.
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公开(公告)号:DE10153808A1
公开(公告)日:2003-05-22
申请号:DE10153808
申请日:2001-11-05
Applicant: TST TOUCHLESS SENSOR TECHNOLOG
Inventor: EINIGHAMMER HANS , MERBACH PETER-MICHAEL
IPC: A61B5/1172 , G06K9/00 , A61B5/117
Abstract: Method for contact-free optical generation of an unrolled fingerprint containing the fingerprint image between the two sides of the nail. Accordingly the surface (1) of the finger ball is divided into partially overlapping regions (3) with imaging optics (4) used to generate corresponding partial images. Composition of the whole image by combination of the partial images involves use of the line structure so that overlapping regions can be correlated. An Independent claim is included for corresponding device for implementation of the method.
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