Light is laser, laser is light, if a light is visable it is electro-magnetic radiation higher up the radio spectrum oscillating at a frequency our eyes are designed to receive.

My post I was referring to laser being much more dangerous than IR LED's as it's a more intense frequency. These guys were referring to using light therefore a much more intense radiation than IR LED's. (Closer to inonizing radiation whcih splits DNA at a cellular level, hence quite a dangerous thing to play with without someone knowing you're going to shoot it through the air).

Ever heard of the phrase look with your ears listen with your eyes? Eyes and ears are the same thing, just because our brain interperts them differently they are both radio frequencies or radiation at a different frequency from each other. Makes me laugh at that vodaphone or boost mobile spot on the TV at the moment with those bugged eyed aliens that can hear phone calls at 900MHz. Wonder if the birds and bee's hear it.

This is why I think it is a seemy scam for money or something the Radio Spectrum Management officers woudl throw you in jail for withotu consulting them......

Think of the Sun as a giant transmitter swamping the little light link for the PC, unless the link uses intensely high radiation focused in a beam stronger than the Sun's radiation emissions it won't work in the higher intesene spetrum at the top of the electro-magnetic spectrum we nick-name light.

I doubt the safety side of things would allow it for a sustained period of time, and you'd technically have to purchase that air space and alert teh public that, that air space contains harmful radiation that can defaintely cause health issues if in contact with the beam.

Point is, light is radiation, laser is the same thing, only laser is a very high powered photon beam stronger than the sun's light, I haven't ever seen one of these yet (that is to say one that falls in the spectrum of light we see with our eyes) appart from an argon laser that's closer to ultra violet, the rest are in test labs with no suns radiation causing interference. Things like LED's would get swamped by natual radiation light from the sun, simple as that. Anything higher is mroe dangerous than the eletro-magnetic burns the Sun can give a good blow off without sunscreen, and therefore must be experimented with care when dealing with laser beams.

Cheers,
Gavin.