公开(公告)号：US10371951B2

公开(公告)日：2019-08-06

申请号：US15562856

申请日：2016-03-31

Applicant: University of Rochester

Inventor： Jannick Rolland ,  Nick Vamivakas ,  Alexander Kitt ,  Aaron Bauer

IPC: G02B27/14 ,  G09G5/00 ,  G02B27/01 ,  F21V8/00 ,  G02B27/10 ,  G02B5/18 ,  H04N13/344 ,  H04N9/31

Abstract: 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.

公开(公告)号：US20180113310A1

公开(公告)日：2018-04-26

申请号：US15562856

申请日：2016-03-31

Applicant: University of Rochester

Inventor： Jannick Rolland ,  Nick Vamivakas ,  Alexander Kitt ,  Aaron Bauer

IPC: G02B27/01 ,  F21V8/00 ,  G02B27/10

CPC classification number: G02B27/0172 ,  G02B5/1809 ,  G02B5/1814 ,  G02B5/1876 ,  G02B6/0016 ,  G02B6/0038 ,  G02B27/1066 ,  G02B2027/011 ,  G02B2027/0125 ,  G02B2027/0174 ,  G02B2027/0178 ,  H04N9/3129 ,  H04N13/344

Abstract: 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.