Fingerprint Identification Devices

 

Description
Holographic Optical Elements (HOEs) enable electro-optic, fingerprint capture devices.  These small footprint devices produce high-contrast fingerprint ridges, valleys, and even sweat pores on ridges that can be seen with the naked eye. 

Prism-based input systems using Total Internal Reflection are used in many fingerprint systems to produce the high-contrast images necessary for matching.  Unfortunately, these prisms also introduce dimensional compression and astigmatism in the image before capture by a CCD camera.  A single, properly designed HOE can eliminate both of these problems and add further functionality.  These optical images are stored digitally and later used for verification and identification.  Comparison against previously stored digital fingerprint records or even ink-based, fingerprint cards produce high confidence level matching.  

Contact us to custom design and manufacture a solution for your needs.

 

 
Wasatch Photonics

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