this post was submitted on 13 Aug 2024
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Privacy

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[–] Hello_there@fedia.io 10 points 2 months ago (13 children)

Make it a UV laser and it would be invisible.

[–] akwd169@sh.itjust.works 29 points 2 months ago (11 children)

demonstrating that he can point a laser that's invisible to the human eye at a faraway laptop, through a window, and detect the computer's vibrations to reconstruct virtually every character typed on it

Infrared is not visible

[–] Hello_there@fedia.io 10 points 2 months ago (1 children)

It is visible to security cameras

[–] akwd169@sh.itjust.works 1 points 2 months ago

Ahh ok, that's what you meant before I guess

Since that function is usually meant for night vision, I wonder how well a security camera can pick out the laser during the day i.e. when the IR sensors are being swamped by daylight also coming in through the window

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