Fingerprint Sensor with Micro Collimator
Micro collimator has a large number of tilting walls fabricated by anisotropic
etching of Silicon.
Micro collimator adjusts the brightness of the fingerprint image captured
by the CCD.
Micro collimator is designed to have the userfs ID in itself.
With designed micro collimator, users can input their fingerprint and ID
simultaneously.
Fingerprint inputting apparatus
Cross section of micro collimator
Captured fingerprint image