Compact optical fingerprint capturing and recognition system
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United States of America Patent
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Mar 22, 2005
Grant Date -
N/A
app pub date -
Jul 30, 1999
filing date -
Aug 6, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and method for acquiring an image of a patterned object such as a fingerprint including a light refracting device, a focusing lens, a light source, and a biometric circuit for detecting the presence of a patterned object such as a fingerprint at the light refracting device. Incident light from the light source is projected through a light receiving surface of the light refracting device and is directly reflected off an imaging surface. The resulting image is projected through the focusing lens. The focusing lens has a diameter which is larger than the projection of the patterned object through the light refracting device.
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