Half a croissant, on a plate, with a sign in front of it saying '50c'
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Privacy filter lenses

 Nonpolarized privacy lenses
  (+4)
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With the threat of Eye scan cams looming on the horizon, data security requires constant adaptation to emerging security threats. These are glasses one can wear while working at a computer, similar in appearance and function to those blue light lenses used to reduce eyestrain and headaches. They have a nonreflective outer surface to prevent your lenses from revealing via reflection what it is you are looking at onscreen.
—21 Quest, Jun 17 2022

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       What is it about the outer surface which makes it non- reflective?
—pertinax, Jun 17 2022
   

       Antireflective coatings.
—21 Quest, Jun 17 2022
   

       [a1] are you aware of any glasses marketed for computer use to reduce eyestrain with such properties?
—21 Quest, Jun 17 2022
   

       Non-reflective coatings are good, but I think it would be better to use the shape instead. A full hemisphere might work (reflecting too much of the world so the screen reflection would be small) or perhaps a severe slope, so the persons lap is what is reflected. Transmitted light wouldn't be affected (much) if the inside & outside surfaces are parallel.
—neutrinos_shadow, Jun 19 2022
   


 

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