Comment on Show HN: PanicLock – Close your MacBook lid disable TouchID –> password unlockparentComments−disillusioned4moAren't the current fingerprint scanners ultrasonic rather than optical? I think they rely on the actual physical ridges−Nexxxeh4moThe process uses the depth of the toner layer to make a mould of the physical ridges, which you use to generate a a gelatine cast of them. It's like a single-layer depth 3D print where the medium is fused toner from the laser printer.
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Aren't the current fingerprint scanners ultrasonic rather than optical? I think they rely on the actual physical ridges
The process uses the depth of the toner layer to make a mould of the physical ridges, which you use to generate a a gelatine cast of them. It's like a single-layer depth 3D print where the medium is fused toner from the laser printer.