How does it work?

The scanner starts scanning your fingerprint when you placed your finger on the glass plate. An LED illuminate the ridges of your finger and a camera sensor similar to most modern sensors used in digital cameras and smartphones captures your fingerprint. The image is then inverted, with darker areas representing more reflected light (the ridges of your fingers) and lighter areas representing less reflected light (the valley between the ridges). The on-board processor then checks if the image is clear and retake the image with an adjusted settings if the image is rejected. Once the image is accepted, the on-board processor then processes image using highly complicated algorithms to recognize and analyze specific features of the fingerprint. The fingerprints can then be stored in the on-board memory and can be used for comparison when needed. For a more detailed explanation on how a fingerprint scanners work, visit HowStuffWorks.Com!