US 11,681,077 B2
Optical metasurface with sub-hogels
Andrew Bartlett, St. John's (CA); and Jordan Peckham, Portugal Cove-St. Philips (CA)
Assigned to Avalon Holographics Inc., St. John's (CA)
Filed by Avalon Holographies Inc., St. John's (CA)
Filed on Oct. 30, 2020, as Appl. No. 17/86,201.
Prior Publication US 2022/0137258 A1, May 5, 2022
Int. Cl. G03H 1/30 (2006.01); G02B 1/00 (2006.01); G09G 3/00 (2006.01); G02B 5/32 (2006.01)
CPC G02B 1/002 (2013.01) [G02B 5/32 (2013.01); G03H 1/30 (2013.01); G09G 3/003 (2013.01); G03H 2001/303 (2013.01); G09G 2300/046 (2013.01); G09G 2300/0452 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An optical device comprising:
a hogel array comprising a plurality of sub-hogel elemental images, each sub-hogel elemental image partitioned into a plurality of monochromatic sub-hogels each comprising a plurality of monochromatic sub-pixels, each monochromatic sub-hogel having a color-channel specific elemental image; and
a directional optical element to direct light from the sub-pixels, the directional optical element partitioned into a plurality of color regions, each color region designed to direct light of a specific color, the monochromatic sub-hogels and the plurality of color regions configured such that the plurality of monochromatic sub-pixels are aligned with the color region of the directional optical element designed to direct light of the specific color of the monochromatic sub-pixels.