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VL6180X operation

Question asked by bertuletti.stefano on Mar 1, 2016
Latest reply on Jan 2, 2018 by john kvam
I undesratnd that "ST Time of Flight technology uses photon detectors to measure the time it takes a generated light pulse to leave our product, then reflect from a target and come back to our device.  Knowing the time it takes, an accurate distance measurement can be calculated knowing the speed of light."

My question is: since VL6180X calculate the distance as the time between transmitting and receiveing the infrared, how can it measure distances (e.g. about 1cm) which correspond to a time of flight in the order of picoseconds ?

Thanks

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