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You are completely correct ... 405nm it is. It is a very distinct purple. Definitely beyond blue.
It is still in component pieces atm, but I will get some pics in the next couple of days. I guess I'll need a smoke machine (or some fog) to show the beam properly. We'll see how we go.
I think it would come in around $15-20 all up per laser, after importing the housing for the diode ($4), buying the small breadboard off of eBay ($12 for 5 pcs), and getting the rest of the bits from Jaycar ($10 all up ... but makes 3 or 4 lasers).
I like the idea of housing it in Electrical conduit pipe. I never considered it. Great idea.
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