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Researchers have developed pixels that can emit and analyse light together

ethz.ch

31–40 of 45 posts

Re: Researchers have developed pixels that can emit and analyse light together

#32
post #20

Earlier quoted context omitted.

A small camera can easily be covered up. You can't cover something that's embedded into the screen itself.

Can you be more precise about what scenario you are envisioning?

Wanting to be sure you aren’t being recorded?

Re: Researchers have developed pixels that can emit and analyse light together

#33

I agree with the others: this is literally the perfect implementation of literal Big Brother "your TV watches you" tech - this WILL BE ABUSED by Tech Corps + Governments. We need to stop building surveilance panopticons! "it is even conceivable that Norris’s pixels could react to a captured image and, without going through a computer, produce corresponding light patterns." Great, also they invented a digital mirror (…

Maybe the Board of Peace will outlaw this technology in doubleplusquick time before it can be put to use.

Re: Researchers have developed pixels that can emit and analyse light together

#35

I agree with the others: this is literally the perfect implementation of literal Big Brother "your TV watches you" tech - this WILL BE ABUSED by Tech Corps + Governments. We need to stop building surveilance panopticons! "it is even conceivable that Norris’s pixels could react to a captured image and, without going through a computer, produce corresponding light patterns." Great, also they invented a digital mirror (…

You still need a lens to make a camera

Re: Researchers have developed pixels that can emit and analyse light together

#37
As usual HN is being incredibly alarmist. Cameras are smaller and cheaper, you can even hide them behind the screen itself to make it harder to cover them up.

We literally had selfie cameras in phones using under display cameras. Surveillance doesn't demand the kind of quality people expect of their phone cameras, making the slight degradation tolerable. Stick a couple with large lenses, under the display in the middle and in each quadrant and you'd be seriously harming your viewing experience.

Re: Researchers have developed pixels that can emit and analyse light together

#38
post #13

This reminds me of approximately 30 years ago. While dabbling in ham radio, I learned that speakers can work in reverse as microphones, and vice versa.

I mean, LED’s can also work aa light-sensors!

And transistors as light sensors if you decap and expose the semiconductor junction to light

Re: Researchers have developed pixels that can emit and analyse light together

#39
post #13

This reminds me of approximately 30 years ago. While dabbling in ham radio, I learned that speakers can work in reverse as microphones, and vice versa.

They can, but I have never seen them wired that way in a commercial product.

LEDs can also be used to measure light btw.

Re: Researchers have developed pixels that can emit and analyse light together

#40
post #13

This reminds me of approximately 30 years ago. While dabbling in ham radio, I learned that speakers can work in reverse as microphones, and vice versa.

There's lots of stuff in an electronic assembly that's microphonic, not just speakers. I don't think it's possible to look at an assembly and conclude that it doesn't contain any microphones.
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