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Please read the thread before commenting. 1ms every 120 seconds is an average of ~50 microwatts of heat. A bare diode will have no difficulty with that. Storage temperature and soldering temperature are VASTLY different parameters, sir. Here. Here's an example. 1.6W blue from osram. Storage...

Fun side thing. Fair enough. The problem here as I see it is you're shoving a raw 5V into the diode with no current limiting. 1ms or not, this will likely pop it unless you accidentally manage enough parasitic impedance in your construction. At the very least you're going to need a dropper...

My knee-jerk reaction is to lash out at you for suggesting that UVC is harmless to humans, but you get a break since you might be a researcher. Your article states "everybody has to leave because in addition to UV-C, they make a lot of UV-A and UV-B, which can cause harm to humans." Tell me...

I'm going to assume you mean the soldering temperature. To this I say: read a few sample datasheets. It's not an issue.

Soldering directly to a PCB is how many drivers are typically interfaced. Running a high power laser diode without a heat sink typically results in death within seconds. However, since your duty cycle is waaaay down in the ppm area, it's perfectly safe to do. The main drawback is a difficulty...

What specifically is receiving power? Where did you measure? What voltage? What current? What contact points? There are dozens of nodes on a driver and I doubt you've measured them all, let alone know what to look for. Start here: Is there ANY light being emitted from the output aperture?

That's it? That's the extent of your troubleshooting? You're in for a long repair cycle if that's the sort of attention span we're working with.

Some type of stepper-motor no doubt. There's a clear section that bypasses the phosphor and these two sections need to be synced with the DMD chip. Reverse-engineering the included driver board, or providing your own stepper motor driver is about the only way to get it running. They don't work...

4 pins? Maybe it's a 660/780 dual diode from NOS of optical drive parts and you hooked up the wrong pin.

Yes, in a sense. Of course, in most cases it's easily overcome with the high voltages involved. Several kilovolts on the primary can punch through an extra few ohms without a second glance. It just means more waste heat and a slightly longer discharge time constant. Also, the secondary current...

What is a typical half life of active colonies, and how is it affected by temperature, humidity, and the type of contaminated surface?

That's 200mm². A pupil maxes out at 8mm, or 50mm². Therefore worst case is you're exposed to 30mW. This is indeed not eye safe, just eye safer than the alternative.

Not really. The maximum intensity is limited by the melting point or boiling point of the combustion products. The same is true of any incandescent lamp.

And the results are in! - this is clearly a lie. ooooo I think we have a budge. Are you finally conceding that isolation of the strands is necessary? Here I'm actually open to a source. Isolated by what? What is thin enough to not be seen, but weather resistant for decades and is also...

That's exactly my point that you're still missing, Paul. Coherence isn't needed to collimate a beam.

That depends on your application. Maybe my first question wasn't clear enough. Let's try this again: What exactly are you trying to do with this laser?

They're not isolated. It's all the same conductor, but with holes in it. Once again, DOESN'T APPLY in 60Hz applications listed in this thread. No one is putting 4MHz through an extension cord. And stranding the wire doesn't do shit anyway, because the strands aren't isolated. You clearly...

The danger roughly depends on the intensity of the emitter. 10 watts of light from a 1cm² patch would be relatively harmless, but from a 1mm² patch - you're looking at "staring into the sun" levels of danger or higher. In short, the danger is somewhere between LED and laser... but closer to the...

NO. Did you not read the thread? Did you not read my post? Here. HERE's a picture from when I googled line lens. It's JUST waves in the injection mold, my man.

They're current-limited to like 20mA - they are, after all, a constant current driver. It WILL hurt like a bitch, but it's not gonna kill you unless you have a heart condition or suffer some secondary injury, like falling off a ladder in reflex/recoil. For comparison, regular neon sign...