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It probably uses an IR light source to illuminate your face invisibly. Trouble on stage may have been from stage lighting drowning out the IR, though that parts
by Shikadi 9y ago
It probably uses an IR light source to illuminate your face invisibly. Trouble on stage may have been from stage lighting drowning out the IR, though that parts just speculation. I didn't watch
- theshrike79 9y agoIt definitely uses IR, they said so. The failed attempt was caused by a rebooted phone, it wanted the passcode even before it saw his face.
- Shikadi 9y agoRight, but I was saying it probably uses an IR _source_ to illuminate your face in the dark. Then again, humans probably just emit enough IR without it.