Freeform and Nanostructured Surfaces Based Augmented Reality Sunglass Display
Web Published:
11/14/2019
A near eye display includes at least one of a combiner, a secondary mirror, and a waveguide having a freeform nanostructured surface. The freeform nanostructured surface encompasses a freeform surface, a nanostructured surface or a combination of both the freeform surface and the nanostructured surface. The freeform nanostructured surface can be incorporated into a combiner or a secondary mirror in the near eye display in a compact folded geometry, wherein an anamorphic or freeform optic can be optically intermediate an image source and the freeform nanostructured surface. The nanostructured surface can include a meta-grating operable across the visible spectrum. The meta-grating includes meta-atoms configured to provide a given efficiency at the desired wavelengths in reflection.
URV Reference Number: 2-15062
Patent Information:
Title |
Country |
Patent No. |
Issued Date |
Freeform Nanostructured Surface for Virtual and Augmented Reality Near Eye Display |
United States |
10,371,951 |
8/6/2019 |
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