[Galaxy S8/S8+] Why do we use IR (Infrared Ray) for Iris Scan?

Last Update Date : Apr 09. 2018

 

In the case of visible ray, Iris pattern can be easily interfered by the reflection
from other stray visible light
UV light is strong enough to sterilize so that it may ingenerate
skin aging.

 

For those reasons, iris scan technology uses safer IR.

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