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I'm gonna up a particle with a laser at 250mW and then turn it up to 2W+ to see if I can blow that shit up (or maybe it will be launched?)

The Disconnect extension also blocks userapi.com. What is it and why use it?

I have an Aixiz thermal-glued in Leadlight. I had to add a spring from the driver to make contact with the barrel before it worked. Thermal glue is a good electrical insulator, it's designed that way even. Cheapest i know of: €1.80 (farnell, digikey, etc start at €30)

This is just too horronic. Ironic because all my life I've been on the lookout for 505nm (LEDs), but a year ago when I last checked for lasers there were only very expensive 520nm. (And I never had hoped to see 505nm lasers in the first place, because what's the application? The color can't be...

"Still"? I was waiting out until the thing about <505 vs >505 thing settled with some suppliers that I then get them from. Are you saying they're history and I'm waiting for naught?

What a crappy images. Wikipedia does a much better job with an image that really looks like the effect irl. Btw, contrary to what some people say, it's not something that can't be unseen. If you forget about it for a while you stop seeing it, just like not thinking about breathing or blinking...

My lenses fluoresce when I was 25. It does take a bit of practice before you notice it though, but with enough practice you can even notice your lenses fluoresce when it's bright outside (yes even when it's cloudy).

Wow, how have I never heard of Laserland? And free shipping ftw <3. They're right next to me... I think? -- can someone confirm whether the map on their contact page is their location or the visitor's approximate location? Are there any other hobby-evolved shops like DTR and Laserlands?

Thanks Encap for the suggestion. I will look into it. I have a few LPC-826, and COD is slowly spreading They run 250mW. Haven't heard of LPC-638 or LPC-840. Did I mention... No I didn't. Anyway I searched for them and found them nowhere. And Ebay is included in 'nowhere'. I can't create an...

Does anyone know happened to our beloved 660nm? I'm looking to restock these diodes but DTR doesn't have them anymore, and I've searched here for a bit and can't find any mention of 660nm in 1.5 year! (though to be fair, can't search for "660 nm" with space because of forum limitations). All I...

I just learned about these methods to make a more 'safe' fluorescent stuff that could be used to make fog: Carbon quantum dots. And unlike fluorescent molecules, they can be tuned to any wavelength. https://www.youtube.com/watch?v=LPkINJkII1w https://www.youtube.com/watch?v=W_Xa-m5zMYI

I recognize that laser. I saw it on youtube as a 'beer opener'. (link)

True. In a pitch dark room and with the right angle I saw the beam on a 0.3mW PL520 (525nm) at just lasing threshold. My LPM (Laser power meter) is very inaccurate in the low region so even though it read 0.3mW it could actually be anywhere between 0.2 and 1.0mW.

Not to badmouth DTR, because I love that shop, but I once received a faulty glass lens. He sent me a new one without me having to send the bad one back :). Btw, I see everyone crediting Jordan, but a few years ago (at the time of my lens) it was Clif. Now that we're on the topic of DTR, what's...

Try Orca film. It's supposed to have an as high as possible reflection in the optical spectrum without fluorescence. It looks less bright than paper, because, paper fluoresces.

Does it fluoresce clean air? I.e. can you produce shallow-angle beamshots?

For the Micro QR code, see ISO 18004-2006.pdf if you want to try to decode it by hand.

If you make a mist containing fluorescein, won't it settlle down on all objects in the house and make everything yellow fluorescent? Btw why did you take the diode out of the optics assembly? There might have been some surprise optics to correct the beam that you'd reconsider building it into a...

Full disclosure

That's a "dissipative" bag, not an antistatic one. The antistatic ones are dark silvery and barely transparent. More on this: https://youtu.be/imdtXcnywb8