Because if you want to cover all possible lasers you'll block out the visible sp... | Hacker News

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		fabian2k on Aug 1, 2024 \| parent \| context \| favorite \| on: How I got my laser eye injury Because if you want to cover all possible lasers you'll block out the visible spectrum as well and won't see anything.

WarOnPrivacy on Aug 1, 2024 [–]

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

rtkwe on Aug 1, 2024 | [–]

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.

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