Method and apparatus for illuminating a fingerprint

The present invention provides a method and apparatus for illuminating a fingerprint. A finger is placed on a transparent platen which has a microprism array on one surface. A light source directs light through a horizontal plane of the platen to illuminate the finger. Light directed through the pla...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: BROWNLEE, KENNETH
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The present invention provides a method and apparatus for illuminating a fingerprint. A finger is placed on a transparent platen which has a microprism array on one surface. A light source directs light through a horizontal plane of the platen to illuminate the finger. Light directed through the platen is substantially parallel to an axis of the microprism array and is largely contained within the body of the platen. The skin in contact with the platen is illuminated by the light, and the light is imaged by an imaging device.