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A comment on Metamaterial based flat lens promises possible revolution in optics. Parent comment

Re:Metamaterial based flat lens promises possible revolution... by stcredzero on Friday June 03, 2016 @12:53PM (#11831479)
I'm sure there are applications where control of monochromatic light is important, but I couldn't tell you what they are.

What about VR headsets? Flat lenses are good in that case, and you'd just have to manipulate 3 wavelengths.

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Re:Metamaterial based flat lens promises possible revolution... by wlesieutre on Friday June 03, 2016 @12:55PM (#11831493)
Still more than 3 wavelengths, even with OLED screens. Check out the gray line here: http://www.displaymate.com/Spectra_4.html

Maybe close enough that it would work, but I'm also not sure whether you can do these metamaterial lenses for three wavelengths at once. If it's even possible, AFAIK it's not a solved problem.

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