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View Full Version : 1 Watt Portable Blue Lasers Now Dirt Cheap!



tone3jaguar
28th June 2010, 19:31
This is an amazing jump in technology. Casio has released a couple of laser projectors that have some 5.6 mm, 445nm blue laser diodes in them. There are 24 of these little suckers in each one of the projectors. Astonishingly each one of these diodes is capable of a reliable 1 watt plus of power. Companies and do it yourself tech geeks are using these diodes to build portable and laboratory lasers with them. You can buy one for $200.00 bucks, no joke. Or you can spend 900 bucks on a projector and build 24 of them yourself if you know how:confused:

These things have to be handled like guns. For some perspective on the power, a presentation style laser pointer can put out about 5 milliwatts. One of these things can put out 200x that amount. 1 watt = 1000 milliwatts. You have to wear protective goggles when ever using something with this much light energy coming out of it. It can blind you faster than a welding arc if the light reflects back into your eye.

I suppose you could use one outside to point at inanimate objects off in the distance without the goggles. But again, you would have to treat it like a gun and not point it at anyone or anything you did not want to hurt. For some more perspective, only about 3 months ago you would pay around 3 thousand dollars for a blue portable laser that was about 1/10th the power that these have. I may get one in the future for the CSETI contact work that I do every once and a while. We will see.

Here are some vids of them, operators are more than likely sporting protective goggles. You have to have goggles made to block this wavelength of light. Dark shades will not cut it.

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john.d
28th June 2010, 19:56
I remember when i was looking at lasers (for parties) 10 years ago , i was told you need a license to operate a 1 watt laser in the uk . They are impressively small ey :)

Anchor
28th June 2010, 23:01
This is worrying. I suspect that we are going to seeing some permenant eye injuries. Coherent light causes a lot of damage and is not well understood by most amatures.

This was covered on Slashdot a while back. (not the projectors, but the availability of the laser diodes)

John..

MiguelQ
16th July 2010, 12:58
Could this device, be used a a UFO communicate method?

I think aliens dont really use radio..i my self think thats old tech.
BUt i think they could capture that light.. the beam, and use it in some sort of Morse code.. that they could intercept it. bit by bit, with ascii code.
i dont know the wave length of that one, but Infra red would be better or.. near ultra violet.



2watt IR laser. its a piece of impressive tech... this can kill .. and can do much more things..

http://www.youtube.com/watch?v=K6wo1HcPZ7w

http://www.youtube.com/watch?v=v9pye4NvLi4