US 11,815,853 B2
PVH in-band chromatic correction using metasurface
Hao Yu, Kent, OH (US); Dianmin Lin, Los Altos, CA (US); Lu Lu, Kirkland, WA (US); Xiayu Feng, Kent, OH (US); Mengfei Wang, Kirkland, WA (US); and Barry David Silverstein, Kirkland, WA (US)
Assigned to META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on May 17, 2021, as Appl. No. 17/322,453.
Prior Publication US 2022/0365482 A1, Nov. 17, 2022
Int. Cl. G03H 1/02 (2006.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01); G03H 1/18 (2006.01)
CPC G03H 1/0248 (2013.01) [G02B 27/0025 (2013.01); G02B 27/0172 (2013.01); G03H 1/18 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01); G03H 2001/185 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical device comprising:
an optical component having a uniform thickness and configured to modify a wavefront of a light beam that includes light in two or more wavelengths visible to human eyes, wherein the optical component has a chromatic aberration between the two or more wavelengths; and
a metasurface on the optical component, the metasurface including a plurality of nanostructures configured to modify respective phases of incident light at a plurality of regions of the metasurface,
wherein the plurality of nanostructures is configured to, at each region of the plurality of regions, add a respective phase delay for each of the two or more wavelengths to correct the chromatic aberration between the two or more wavelengths.