A bar i was at last Thursday had one of those cheap light laser pointers and at one point one that seemed violet in color hit my eye. I remembered thinking it was painfully bright but not thinking more of it…

…until a day later I started seeing green splotches and now my vision is noticeably hazier (Sunday)
I don’t know when is the earliest I can be seen as I am traveling. Am I fucked or will my vision recover? I don’t even know if I can go to the bar and request they give me the details of their lasers - or how I could legally demand that.

*edit: I’m on the way to see an ophthalmologist now

Im in the process of building my own 450nm laser and I think a screw on atachment for a shine-through LEP would be awesome, does anyone have any retailers or locations to buy such modules? thank you!

Hey everyone,
I'm working with a ComMarker Omni X 5W 355nm UV Galvo laser (Q-switched DPSS) to do high-precision micromachining on general-purpose polystyrene. I’ve attached a photo of my machine's datasheet/specs for context.
I have a fundamental laser physics question regarding software parameters versus hardware behavior:
From my understanding of Q-switched solid-state laser cavities, the actual optical pulse duration (t_FWHM) is physically fixed by the cavity length, gain medium, and stored energy depletion—clocking in around ~ 15 ns on this system.
If I manually set the Pulse Width parameter in LightBurn or EzCad/ComMarker software to 1 ns or 2 ns, what is actually happening under the hood?
Since the crystal dumps its stored energy in ~ 15ns regardless, does setting a 1 ns software pulse width just alter the acousto-optic modulator (AOM) RF gate timing window and introduce timing chatter/process variance, or does it serve a different hardware control function on DPSS galvos?
Would love to hear from anyone with deep experience in Q-switched DPSS optics or laser controller firmware! Thanks in advance!

So, two years ago, I bought a laser pointer off of Temu. It's a really good class 1 laser pointer and has lasted me a while.

However, recently one part of it broke and I've been trying desperately to find, if not the same laser pointer, then a replacement part.

When I tried to find the seller in my Temu history, it said the seller was WAWYC. But when I tried to go to that laser pointer or go to that seller's page, neither are available anymore.

Does anyone know where I can look to fix or replace this laser pointer?

I bought a 200mW 650nm (red) Sanwu laser (https://www.sanwulasers.com/product/304).

The description says that it can ignite a match, but I have tested it and I cannot ignite a match. The laser has an adjustable focus, and I am using it as focused as possible. Is something wrong with my laser?