Freestone Intellectual Property Law PLLC
Phase-shift matched Fresnel layers
An optical structure includes a refractive material, a Fresnel surface, a dichroic reflective coating and a second coating. The refractive material has a refractive index. The Fresnel surface is formed in the refractive material and the Fresnel surface includes active surfaces and draft surfaces. The dichroic reflective coating is selectively disposed on the active surface. A second coating is selectively disposed on the draft surfaces.
Facebook Technologies, LLC
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Andrew John Qi Robin
Ouderkirk Zhang Sharma