BIOMETRIC IMAGING DEVICES AND ASSOCIATED METHODS
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United States of America Patent
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Issued Date -
Jan 17, 2013
app pub date -
Jul 13, 2012
filing date -
Jul 13, 2011
priority date (Note) -
Abandoned
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Abstract
A system for identifying an individual can include an active light source capable of emitting light having at least one wavelength from about 700 nm to about 1200 nm, and an imager device positioned to receive the electromagnetic radiation upon reflection from an individual to generate an electronic representation. The system can also include an image processing module functionally coupled to the imager device to receive the electronic representation and process the electronic representation into an individual representation having at least one substantially unique identification trait. The imager device can include a semiconductor device layer having a thickness of less than about 10 microns, at least two doped regions forming a junction, and a textured region positioned to interact with the light, and can have an external quantum efficiency of at least about 33% for at least one wavelength of greater than 800 nm.
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