[Cyborg] 200 laser diodes
mrericboyd at yahoo.com
Wed Jun 2 13:27:08 PDT 2010
I sent a contact thing to the dude, asking if he's got any design
information up anywhere, and about eye-safety of the device. Because I
think that's the key thing here: can a beam which is visible in e.g. a
club (dim lights) also be eye-safe?
According to wikipedia (http://en.wikipedia.org/wiki/Laser_safety), to
be legal (=eye safe), the laser must be <5mW, that makes it fall into
class IIIa (now class 3R). I found some fairly cheap IIIa laser diodes:
It's not clear to me if you need an external circuit other than a
current-controlled voltage source to drive these. I don't think so, I
think that's what they mean by "module" as opposed to just buying the
diode. If you do just need a current controlled voltage source, we
should be able to drive these directly from the North Paw circuit, all
we need is some resistors in series with the "motor" outputs.
But I agree that while building the device, we'd need to have some
goggles. It'd give you a headache for sure if you caught one in the eye
more than a few dozen times.
Anyone else interested in bulk ordering of these? With shipping they
are going to be about $4 each, so for <$50 you can have a pretty decent
number of them.
On 6/2/10 11:52 AM, kristinneidlinger wrote:
> I want to build one!
> I did some design research of where they should be placed for a postal
> feedback suit and ended up with a huge headache! So, we should look
> into some goggles too...
> On Wed, Jun 2, 2010 at 10:39 AM, Eric Boyd <mrericboyd at yahoo.com
> <mailto:mrericboyd at yahoo.com>> wrote:
> OMG, this is the awesome-est light-up wearable outfit I've seen yet.
> Lasers make LEDs seem so boring! Even the "laser suit sample" is wicked
> Who wants to build one? I'm super keen, and if we build multiple units
> we can push down the cost a little (laser diodes are expensive...)
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