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DuckDuckGo claims its anti-pervert sunglasses are the real deal
(cybernews.com)
"We did it, Patrick! We made a technological breakthrough!"
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Whelp, looks like I have a new project.
won't work so well unfortunately.
LEDs are typically powered via PWM which can be easily ignored through shutter speeds.
I suppose you could have three differently timed sets of LEDs at randomly overlapping frames. though that itself would be difficult to maintain due to loose coupling and synchronization. you can see it happen with metronomes. electrical oscillators are similar and can be effected by other nearby components.
Couldn't you just power them 100% of the time?
sure, but the only reason why LEDs are energy efficient is because of the PWM. they're also designed to only operate at engineered runtimes too.
so not only will you need larger more energy dense batteries to run them, you'll also only get half or even quarter the runtime out of them for running them at 100% of their runtime spec.
This is similar to the swiss cheese theory for masking. It doesn't have to be perfect. There just needs to be enough on at any given time to distort the image. Add a couple bonus sets if we're concerned with an entire set losing sync.