4 ms·
I’ve wondered the same on the constant IR flashes from FaceID. It doesn’t seem like it should be a problem compared to going outside in the sun, but it is a bi
by mkmk 3y ago
I’ve wondered the same on the constant IR flashes from FaceID.
It doesn’t seem like it should be a problem compared to going outside in the sun, but it is a bit unsettling to see how bright and frequent the flashes are (a Nest camera pointed at a dark room shows them clearly).
- epgui 3y agoIt’s not necessarily the perceived brightness that I am worried about. Illuminated surroundings outdoors on a sunny day are obviously perceived to be brighter than any screen… But here we have a flickering light source that is microscopically very heterogeneous. LED emission spectra (even for very expensive ones) are extremely non-uniform and “peaky” at narrow bands of wavelengths. I’m not as worried about it as I am of lasers, but it’s a similar idea, maybe (very loosely speaking).