METHOD AND APPARATUS FOR ILLUMINATING A FINGERPRINT

摘要

The present invention provides a method and apparatus for illuminating a fingerprint. A finger is placed on a transparent platen (102) which has a microprism array (103) on one surface. A light source (104) 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.