Transfer sound using light

Why use Wi-Fi when you can transmit an audio signal using a laser pointer or LED? :)

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-4 1. BigBang commented 13 years ago

Uhm yeah... place the laser on a table in 3m distance to the opto transistor, adjust it, kick the table, and adjust it again... and again... every single time a part moves like 2cm.
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+1 2. BombDiggady commented 13 years ago

Very Interesting!
I have to try this myself. :)
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-6 3. cannnobaL commented 13 years ago

Worthless.
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+5 4. DarkiKun commented 13 years ago

Why do ppl have to post just to say its worthless? that's just retarded.
its an interesting experience and its not made to be useful.
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-1 5. MrGood commented 13 years ago

i think if it can only work with a line of site and he only has it 5 meters away. I think its cheaper to buy a 5 meter 3.5mm jack male to male cable. Rather than getting 5 croc cables, a resistor, laser pointer and 2x 3.5mm plugs.......
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-3 6. Mix commented 13 years ago

i know a better way to get sound/music, just press play on your mediaplayer...^^ don't get the point of this...
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+2 7. bjoast commented 13 years ago

Indeed, #4.
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-1 8. SixaxisDualshock commented 13 years ago

I get the point of this, but [url=http://www.hak5.org/]Hak5[/url] did this like over a year ago or something.
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-1 9. Kosmology commented 13 years ago

looks fake or something is this for real?
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0 10. Pblack086 commented 13 years ago

Thats Fuckin sweet!!! :O
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0 11. keyshey commented 13 years ago

really awesome!
i wonder if theyre using this technology w/ any consumer products now
nice!
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0 12. joeherper commented 13 years ago

You could set up a wireless network with infra-red light that would not have free riders. This is a very basic application of what is a promising way to send information with a degree of broadcast control.
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-4 13. jesus commented 13 years ago

They call me jesus for a reason
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-4 14. jesus commented 13 years ago

They call me jesus for a reason
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0 15. richardhalo commented 13 years ago

"hipateen" MUST BE BANNED FROM THIS WEBSITE ASAP!!!!
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0 16. jwn commented 13 years ago

Very cool. He's modulating the audio signal in the visual spectrum. Forget gigahertz, this guy is working at 500 terrahertz.
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0 17. jOzzie commented 13 years ago

Made this one years ago for Physics. It's nice to make it yourself but not very usefull :)
But I read that it should also be possible to hear people talk in another room when pointing the laser at a window and catching the reflecting bundle... because when someone is talking there it should make the glass tremble a little bit >:) unfortunately I hadn't time to try it... :|
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0 18. TeeZee commented 13 years ago

FOCUS!!!!!!!
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0 19. scouse1 commented 13 years ago

kavina ok calm down a bit will ya ur gettin borin
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0 20. lacroupade commented 13 years ago

hey that should work really great on the train on the way to work....
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0 21. rdsgalvao commented 13 years ago

Nothing new about this. I've been using optical wireless headphones for over a year.

In case you don't know you can buy them almost anywhere, the only difference is that they work with a UV LED, so that as to reduce interference from other light sources.
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0 22. killest commented 13 years ago

Sony released a TV that had Wireless Infrared Headphones Way back in the early 90s
It's really cool stuff
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0 23. nooitaf (admin) commented 13 years ago

this gets very interesting at the prices you have to pay nowadays for very strong lasers.. the simplicity is just amazing! with 8 lasers you could actually transit dolby7.1 .. woow :D .. and even if you could buy a cable thats cheaper .. a laserbeam just looks awsome compared to any cable out there!

Go Laser, go laser ! >:)
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0 24. liqxpil commented 12 years ago

#13 because u must end crucified
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0 25. RamsMaiden commented 11 years ago

Science is fun isn't it .....this is cool