We’re often warned about how dangerous small commercial lasers can be for our eyes yet technologies like FaceID projects light in our faces many times a day.
Why is FaceID safe? Because it’s low enough power or because it’s in the non-visible spectrum?
Can the non-visible spectrum be dangerous for our eyes?
In: 40
Yes. Anything from near infrared on up can damage the eye. The eye is fairly opaque to certain wavelengths (like some in the UV portion of the spectrum), so most of the damage is on the outer part of the eye, as opposed to near IR and visible light where the damage focuses on the retina.
We’re often warned about how dangerous small commercial lasers can be for our eyes yet technologies like FaceID projects light in our faces many times a day.
Why is FaceID safe? Because it’s low enough power or because it’s in the non-visible spectrum?
Can the non-visible spectrum be dangerous for our eyes?
In: 40
Yes. Anything from near infrared on up can damage the eye. The eye is fairly opaque to certain wavelengths (like some in the UV portion of the spectrum), so most of the damage is on the outer part of the eye, as opposed to near IR and visible light where the damage focuses on the retina.
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