On: How I got my laser eye injury

[jmclnx]

One thing I learnt, different glasses for different type lasers, who knew :)

[0x138d5 → jmclnx]

One of the professors in my uni lab had "universal laser goggles".

They were regular goggles with a sheet of lead bent over them.

[trelane → 0x138d5]

Niiice. Even attenuates those xray lasers!

[ta988 → jmclnx]

That and different glasses depending on how you use that laser... Because some lasers can do variable wavelength.

[cyberax → ta988]

Dye lasers are the worst. You now have _two_ (or more) wavelengths to shield against. Bonus points if one of them is in IR.

That's probably how I got my eye damage - a small hole in the retina of one eye.

[amluto → ta988]

I’ve seen some references to the universal laser glasses: Apple Vision Pro!

[ta988 → amluto]

No, the cameras would probably not survive laser exposure beyond a cat toy pointer level power (and even then I wouldn't bet long exposure of those).

[amluto → ta988]

That’s fine. If I worked in a room with a laser and I screwed up and hit my face, frying an Apple Vision Pro seems like a pretty small price to pay. My eyes will be fine.

And the Apple Vision Pro works against tunable lasers, lasers of unknown frequency, flashlamps, etc.

[rtkwe → ta988]

They'd still protect your little human eyes. If you wanted to use them as safety glasses normally you'd want their cameras to be easily replaceable but they would function as safety goggles for short periods until the camera caught a stray beam.

[gabrielhidasy → ta988]

Cameras are cheap, eyes are expensive.

Ok, the Vision pro cameras are probably very expensive (mostly because I doubt you can just switch them with new ones). Maybe put a bag over it and a Pi camera on the outside? Can you live-stream to a Vision Pro?

[archgoon → amluto]

That's actually not a bad idea. It's just mildly more expensive than your typical goggles.

[hanniabu → jmclnx]

Why can't there be glasses with the different types layered together into one?

[fabian2k → hanniabu]

Because if you want to cover all possible lasers you'll block out the visible spectrum as well and won't see anything.

[WarOnPrivacy → fabian2k]

You can get some overlap tho. I have 520nm goggles that tone down 465nm.

[rtkwe → WarOnPrivacy]

That's mostly because it's tough to get a perfect notch filter in the visible spectrum but you'd never want to use the 520nm with a 465nm unless it was low enough power the fuzzy edge of the filter knocked it's power down enough to be safe.

[pjc50 → hanniabu]

Then you can't see anything.

They're narrowband filters. A welding mask would be a wideband filter, but is much harder to work with when it's engaged.