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Level 1

32 points

Safety of Face ID system for eyes?

Hi,

I'm considering a purchase of iPhone X. I have a concern about safety of dot projector in iPhone X for my eyes.

As I understood, dot projector in iPhone X emitts infrared rays for the work of Face ID function.

It should work fine in normal conditions with ambient light and at normal distance when we hold the iPhone (in 10-20 inches from our face).

However what will happen:

A. If I turn on the iPhone X at night in full dark?

B. Or I accidentally turn on the iPhone X from close distance to my face (within 1-2 inches) ?

May the dot projector in iPhone X damage retina in my eyes?

A pupil in the eye reacts only to a visible light, not to infrared light. And in the dark pupil is fully open and eye will get all the light from infrared dot projector.

I'm wondered that nobody raise this subject before.

Posted on Oct 26, 2017 1:35 AM

Best reply

Baintek

Level 1

9 points

Posted on Dec 2, 2017 6:09 PM

I'm surprised there isn't more information about this. I really like my iPhoneX. The form factor and screen are close to perfect. Unfortunately I will be returning it due to discomfort using the FaceID. Dont get me wrong, It works very well. The issue is after a days use I notice my eyes are irritated and I have a slight headache. Switching back to my iPhone6, no issues.

Whats more worrying, even after completely switching off FaceID (all options), the sensor light stll projects as soon as the phone is active. This means the whole time you are looking at the iPhoneX, even with FaceID switched off, the light is pulsating in your face. (Can be proven with a normal handycam)

I would be happy to use the passcode (touchID would of been better) to unlock the iPhoneX knowing there was no sensors operating beaming into my face when the function was turned off.

Unfortunately this option isn't available.

Why apple, with the FaceID completely turned off, should the Flood illuminator / Proximity Sensor still continue to operate?

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