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I have a history of killing 445nm diodes, probably $300 in the hole over a period of 5 years. Not from too much current but from overheating or too long a duty cycle. So I just bought one of DTR 7w NUBM44 V2 450nm Diode In 12mm Copper I got the 12mm so I could attach a thermistor connected to...

It's been awhile since I made my last driver but I think my 7135's were overheating above 3.7v, so I was going to use the voltage regulator before the current regulators to give me a wider range of batteries. Other than added complexity would this work?

So lets say I have a voltage regulator that outputs the needed voltage to the diode and I run this through 7135 current regulators. Would I have a direct driver that worked? Does the diode need anything other than the proper voltage and current?

Copyright © 1994-2004, Samuel M. Goldwasser So, many led and laser diodes seem to only have a voltage regulator and a diode for reverse battery protection. Some have current regulators, but all the green ones seem way more complex. I'm interested in using the following laser in a project but...

So what is recommended for measuring Class 1 IR laser compliance? What kind of money can I expect to spend?

If I am not mistaken the way the mirrors are aligning those beams is no different than what my telescope idea would do?

To fight terminators, like in the movies duh. Anybody else with any input? Is it possible to get 40watts out of this idea?

So the idea does have some merit? Just there would be around 50% cancellation of power? Still seems like a cost effective way of combining a lot of beams easily.

Needing some answers to an idea I had. From the time I watched the first terminator, I've thought of a 40w portable laser. Just wondering if I could make the below idea work, or if the wavelengths would cancel each other out. Take a 90mm makutov telescope. Build a heatsink in front of the...

Just want a good performing diode/module for around $100ish

Just now getting into green lasers, Not familiar with the diodes in common usage. Looking for something around the cost and as usefulness as my Jayrob 445nm build. Any advice and option suggestions would be appreciated. Thanks

Any ideas?

I have a mini 904nm diode and the lens is so small it can't easily be cleaned and a little dust messes up the beam. In front of the diode is a .4" cylinder shape area I can put a sacrificial lens. I guess I can either screw a module into this place or bond a lens in this area. Any idea where I...

I've been keeping to the norm and using flexdrives set at 1.5amps, but they get pricey when you have several projects going on. There is a plethora of LED drivers ranging from 300ma - 750ma - 1,400ma on ebay that can be had for less than $6. By combining 2 or 3 of these you could achieve a lot...

Any idea how for you can see a beam this powerful pointed into the air with night vision? Its not about pointing it at someone. its about looking for the beam from another ground position when it is pointed at the empty sky. I have a personal need for this and I want to explore the most I can...

Thanks for sharing your knowledge, if anyone else has experience with how many 2 of these batteries could power please chime in. I've had lasers this powerful for awhile now, nobody is blind, safety issue is covered.

It's for emergency signaling. There will be plenty of metal around the modules for the bursts I will need, not talking burning or more than a few seconds of runtime.

I've got a little project going. I've got a 1.4" tube to work with, and need to cram as much battery power and axiz modules that I can in it. My favorite battery is the AW 18650's, I can only fit two of them in the tube, but I could change batteries if the benefit is great enough. I'd like to...

I had better luck today. Used a stainless steel mixing pot, and the remains of the aluminum pot I accidentally melted before as my metal. Once it went molten I poured it straight into the flashlight head with an axiz module packed in the middle of it. I packed dirt around the bottom of the...

I'm going to do aluminum. I tried copper, but melted the pot out from underneath it lol. It was a really nice thick pot, guess it was some kind of aluminum alloy. Honestly didn't think it would melt first. It has been a lot of fun, it is certainly a skill worth learning and carries a lot of...