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I recently picked up a 10mw hughes hene laser on ebay, but I don't know its wavelength and would like to know it so I can get some goggles. All it says on the tube is model no:3224h-pc and serial number 3110169 and made in march 1983, I've googled but to no avail. Can anyone help?

I've been thinking about a homemade green laser for a while, so recently I got a couple of Nd:YVO4+KTP composite crystals and a 500mw 808nm diode on ebay, all for less than £20. Here's my initial set up: After lots of fiddling I had the beam focussed in to the crystal and 532nm flying out...

This has been an ongoing project for about 3 or 4 months now, it's part of my A levels and has so far been a huge learning curve, I feel I'm slowly getting there finally, despite the hefty set back of a burnt out transformer flyback transformer yesterday! The laser tube is 40cm between...

Hello, I'm a student and as part of my A levels I'm planning on making a small 10-20 watt co2 laser based on a Liebig condenser, with an arc lengh of about 400mm and a bore of about 15mm. For the high reflector I'm considering using an aluminium hard drive platter if I can't get hold of a...