this post was submitted on 10 Aug 2025
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Mildly Interesting

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[–] Knossos@lemmy.world 96 points 1 month ago (19 children)

They exist in trials. The human danger is too great though I think. If the laser thinks your eye is a fly for a split second, game over for vision.

[–] IAmNorRealTakeYourMeds@lemmy.world 45 points 1 month ago (15 children)

screw that, we'll just wear sunglasses indoors and look supercool and mosquito free

[–] zqps@sh.itjust.works 9 points 1 month ago (8 children)

A laser that can kill a fly in the fraction of a second has to deliver enough energy to fry your retina even though a dozen sunglasses. Also consider that the laser is focused down by the lens in your eye which greatly amplifies its power.

[–] aramova 12 points 1 month ago (1 children)

That's not how specific wavelength safety goggles work. You can get both near UV blue light 440nm 5 watt goggles, and infrared depending on the laser.

Problem is they tend to shift the color of light for everything so much that they aren't pleasant to wear for a long time.

My worry would be getting hit on the skin, a 5 watt 440nm laser hurts, and it's a deep burning pain that doesn't go away.

[–] zqps@sh.itjust.works 1 points 1 month ago* (last edited 1 month ago) (1 children)

Why even pretend my reply was about safety goggles? Obviously a huge difference vs regular sunglasses.

[–] IAmNorRealTakeYourMeds@lemmy.world 3 points 1 month ago (1 children)

I thought it was obvious I meant laser safety glasses.

[–] zqps@sh.itjust.works 1 points 1 month ago (2 children)

With the line about looking cool wearing them indoors??

they ain't mutually incompatible

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