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Retries at this price range are something I am unfortunately used to. Killed 3 ~700mw 635nm diodes in a row before giving up and deciding to buy one pre-built. Hopefully a solid half back and a dollop of decent thermal compound will save me from that fate with violet.

A BDR-209 diode I recently ordered died after a few minutes of use. When I was troubleshooting the problem, I noticed that the copper module module could get notably hotter then the aluminum heatsink. I did not use the back end for the module due to space constraints, and I didn't use thermal...

You could get something from here: https://www.survivallaserusa.com/Safety_Goggles/cat1667093_1527285.aspx International site: https://www.survivallaser.com/Safety_Goggles/cat556089_826120.aspx They filter more then just IR though.

Sure, you can do whatever with it.

Yep

My current thoughts about corrections for lower powers: Its probably not necessary for dots, as the are pretty bright even at low powers. But for low power beams in clean air, assume they are seen with mesopic vision. Dark rooms are well into the mesopic range after all, and you won't have much...

You've probably seen this by now, but I threw together a replacement https://laserpointerforums.com/threads/replacement-tool-relative-laser-brightness-calculator-open-source-edition.105112/

I might do that in the future. It wouldn't be too hard, but work on this will be very on-and-off.

I've been thinking of adding a toggleable 'fudge factor' to the calculator to compensate for things like that. I just need to get enough data to make a reasonable adjustment curve, there wouldn't be much point to it if it makes it even more inaccurate.

rhd hasn't been seen in a while, and his laser calculator has been down as well, so I decided to cobble together a replacement for the community (and myself). I made this in a few hours as a personal project, so its fairly simplistic. Its open source and uses GitHub as a host, so it should be...

All of them are sold? Seems like I was a bit too slow on the draw, I was eying those reds. I'm glad your sale went well.

I'll add on that anyone is free to host the webpage or add it to their site. I don't have a place to stick it at the moment. Edit: Found a host - https://slickscreen.github.io/laser-tools/brightness/

It should work in both of those situations. You just need to open index.html to run it.

Here's a clunky version of the website I scraped together this afternoon

The power rating should just count the green, but cheap 532nm lasers tend to leak a lot of IR and have questionably accurate ratings. I hear that 30-80mw of green light is a common range for them. That particular LPM seems sketchy too, so the readings should be taken with a grain of salt.

You could always use the good ol' cd and tape measure trick to figure out its true wavelength.

Better thread engagement for the longer focal length lenses sounds nice. Are you planning on selling what you machine?

This may not be true for meters that aren't dirt-cheap, but my little LCR meter can be over 1V off of a diodes Vf at higher currents. You'll probably want to test it under load, and maybe take a gander at the datasheet.

You could trying buying a lens like this and shift it around until the beam axes roughly match https://www.ebay.com/itm/263682747045 Disclaimer: I am no optics expert

You can also add "site:laserpointerforums.com" (no quotes) to a google search to explicitly limit results to this website.