This is really quite interesting, thanks for posting. I imagine it works like a lens or plate with a variable refractive index. If they create a greater index or optical density in the middle, it would slow the wavefront down more towards the middle, while the upper and lower edges move faster through the material, creating a converging wavefront? I suppose they manufacture these nano lenses to create a "denser" section in the middle to focus the light? Super cool.
Interesting use of thin film deposition.
If I am reading correctly, they are using the same technology that we currently use for AR coatings(PVD)
But they are varying and controlling silica concentration depending on the location of the lens from the optic center.
Costs to manufacture one lens must be quite substantial though, not to mention time consuming.
If we made a pair of Rx Spectacles in this way it would probably cost well over $5k retail.
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