Internal fingerprint sensor peers inside fingertips for more surefire ID
Tuesday, October 20, 2015 - 16:30
in Physics & Chemistry
Most optical fingerprint sensors today produce images by reflecting light from areas where the skin does not come in contact with a glass plate, a technique that captures details from only the very top layer of skin. In contrast, a new device images the 'internal fingerprints,' which have the same pattern as external fingerprints, but are about half a millimeter below the skin's surface.