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In Norway, laser weapons are being used to remove sea lice from farmed salmon. The Stingray Laser System uses cameras to scan the fish, identify lice, and then deliver a laser pulse to kill them. (files.catbox.moe)
submitted 1 year ago by to c/mildlyinteresting@lemmy.world
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[–] 9 points 1 year 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.

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  • [–] 12 points 1 year ago (5 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.

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  • [–] 1 point 1 year ago* (last edited 1 year ago) (4 children)

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

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  • [–] 3 points 1 year ago (3 children)

    I thought it was obvious I meant laser safety glasses.

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