What Is a Fingerprint Scanner?
A fingerprint scanner is a device designed to capture, identify, and verify the unique fingerprint patterns of an individual.
Utilizing the simple action of placing a fingertip on the sensor, the device accurately records the intricate patterns characteristic of a fingerprint. Given the distinct and complex nature of fingerprints among individuals, the scanner converts these patterns into digital data, serving as a reliable means for identity verification or authentication.
Diverse in their technology, fingerprint scanners encompass optical, capacitive, and ultrasonic types. Optical scanners use light to capture the fingerprint’s surface pattern, whereas capacitive scanners gauge minute electrical variations on the fingertip to derive the print. Ultrasonic scanners, however, employ sound waves to map not only the surface but also the subdermal layers of the finger, offering a comprehensive fingerprint capture.