▲ | notherhack 14 hours ago | |
Is there an effective anti-IR coating for eyeglasses like there is for UV? Seems like a good thing to have but a web search doesn't turn up much. It might interfere with facial recognition, but maybe that's a feature. | ||
▲ | somat 10 hours ago | parent | next [-] | |
Off topic: but in regards to UV protection, poly-carbonate(common in lenses) is UV-opaque. Completely clear uncoated PC lenses block most UV light. https://www.apollooptical.com/material-transmission-data-gra... Note the sharp drop-off in transmission for wavelengths shorter than 400 nm. | ||
▲ | ottah 13 hours ago | parent | prev | next [-] | |
Any laser light strong enough to damage your vision, might also pass through a optical coating. Distance can attenuate the strength, but really the only defense is proper rated glasses for the spectrum. | ||
▲ | brookst 9 hours ago | parent | prev | next [-] | |
Smartphone cameras typically have IR filters, but no idea what the attenuation is and if the same coating would be sufficient. | ||
▲ | mrob 13 hours ago | parent | prev | next [-] | |
Thin films of gold are reflective in the infrared and transparent in blue/green optical wavelengths. Gold can be applied to most surfaces by various physical vapor deposition processes in a vacuum. | ||
▲ | compass_copium 13 hours ago | parent | prev [-] | |
Zenni sells one now, with privacy as a selling point |