Topographical object detection system
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United States of America Patent
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Nov 16, 1999
Issued Date -
N/A
app pub date -
Mar 26, 1997
filing date -
Feb 18, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A compact system for producing high contrast and high resolution images of a topographical surface associated with an object. The system utilizes a novel holographic optical element to produce images of topographical surfaces differentiating between ridges and valleys, and providing image details of artifacts. The system of the present invention can be realized in the form of a hand-held instrument for use in in vivo imaging of fingerprint, skin tissue and the like.
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