It turns out it’s the sensors that are easily damaged by high powered lidar lasers.
https://spectrum.ieee.org/amp/keeping-lidars-from-zapping-ca...
I also wonder if the smaller sensor size on phones contributes, since the energy is being focused onto a smaller spot.
Either way, for that to happen he was filming the LIDAR while active, for a decent amount of time, from right next to the car. I assume under normal conditions it wouldn't be running constantly while the vehicle is stationary?
Laptops aren't generally being used in the same areas as cars though, so you wouldn't expect to see as many cases involving Windows Hello compatible laptops/cameras.
It's not safe just because it's infrared. And the claims that it's safe because of the exposure time is highly questionable, would you be okay with that for any other laser?
There was someone who had his eyes damaged by sitting next to a heater.
> Moving to a longer wavelength that does not penetrate the human eye allows new lidars to fire more powerful pulses and stretch their range beyond 200 meters, far enough for stopping faster cars. Now a claim of lidar damage to the charge-coupled-device (CCD) sensor on a photographer's electronic camera has raised concern that new eye-safe long-wavelength lidars might endanger electronic eyes.
> Producers of laser light shows are well aware that laser beams can damage electronic eyes. “Camera sensors are, in general, more susceptible to damage than the human eye,” warns the International Laser Display Association
"doesn't penetrate the human eye" seems a bit hand wavy, but I take it to mean "these length pulses in this wavelength are tuned to have the power not be enough to damage the eye". Camera lenses may not have the same level of IR filtering/gathering area or, if they do, there is nothing implying the image sensor has the exact same tolerances as the inside of the eye. From the same:
> Sensor vulnerability to infrared damage would depend on the design of the infrared filters
A heater usually damages the eyes through drying out/heating up the outside layer with constant high intensity, not by causing damage to the retina (post filtering). https://hps.org/publicinformation/ate/q12691/
> Furthermore, since the eye blocks the IRR, the eye begins to overheat leading to eye damage and possible blindness. Because of this, you should not look at the heater for an extended period of time.
Enough intensity of any wavelength is enough to damage any camera or eye of course, but the scenario here seems to be built around that question for the eye. Similarly, I've heard of Waymo's causing 6 mph accidents but no reports of eye damage from any car LiDAR. Despite that, in the above YouTube clip Marques Brownlee actively shows his camera being clearly damaged as its moved around.
So they don't care if that breaks my phone camera? Wtf?
I would imagine, even with safe dosages, there would be some form of cumulative effect in terms of retinal phototoxicity.
More so if we consider the scenario that this becomes a standard COTS feature in cars and we are walking around a city centre with a fleet of hundreds of thousands of these laser sources.
The grandparent comment is about camera lenses with little to no near infrared cutoff filter. Some older iPhones were like that and that was the original breaking story.
Absorbing the laser isn't necessarily any good. Very hypothetically it could lead to cataracts.
Shame that perverts had to ruin that for us, it was kinda neat to point a TV remote as the camera and see the bulb light up.
Thanks! What a headache