• Knossos@lemmy.world
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    18 days ago

    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.

      • zqps@sh.itjust.works
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        18 days ago

        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@infosec.pub
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          18 days ago

          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.

    • sartalon@lemmy.world
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      18 days ago

      So many ways to engineer out that hazard.

      Last I understood was it’s been patented 10 different ways from Sunday, and prototypes are just sitting on shelves, collection dust.

    • Zaphod@discuss.tchncs.de
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      18 days ago

      I think it wouldn’t be a device to have on passively. Just something to turn on when you need it, like a vacuum. So you can just put safety glasses first.