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Anyone using 20 or 40 W laser bars?
Been seeing these on ebay, and I'm interested in hooking one up to see what it can do. Obviously safety first with these babies, as I do enjoy having eyes. Luckily I work at an imaging facility where we have power meters and goggles.
At aboput 20x20mm they seem to be considerably smaller than the average CPU and could probably sit on a standard computer store bought liquid CPU cooler. Not sure how to regulate temps tho, especially if I use a CPU peltier. I am seeing little control panel temp controllers for around $50-60 but unsure about sensors. The diodes do have thermistor wells in them but no integrated sensor.
I found various generic high current power supply schematics based on LM317 current regulation and stacked trasistors, but I wondered if anyone has a favorite recommendation along those lines. Want to run the thing off laptop batteries eventually.
Also wondering about optics, as these things have a 10cm emitter area and I would like to shorten that considerably. The cheapies for auction right now have no fast axis lens.
Any thoughts, besides "You'll shoot yer eye out, kid!"..?
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