US 12,339,481 B2
Meta optical device and electronic apparatus including the same
Hyunsung Park, Suwon-si (KR); Hyeonsoo Park, Seoul (KR); and Seunghoon Han, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Mar. 9, 2022, as Appl. No. 17/690,180.
Claims priority of application No. 10-2021-0104211 (KR), filed on Aug. 6, 2021.
Prior Publication US 2023/0041415 A1, Feb. 9, 2023
Int. Cl. G02B 5/30 (2006.01); G02B 1/00 (2006.01)
CPC G02B 5/3083 (2013.01) [G02B 1/002 (2013.01); G02B 2207/101 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A meta optical device comprising:
a plurality of phase modulation regions respectively comprising a plurality of nanostructures and configured to modulate a phase of incident light, wherein a phase retardation profile of the plurality of phase modulation regions monotonically changes with respect to light of a plurality of wavelength bands apart from each other,
wherein phase modulation ranges with respect to the light of the plurality of wavelength bands are different from each other, and
wherein, in each of the plurality of phase modulation regions, a phase retardation dispersion defined by a difference between a phase retardation profile corresponding to light of a first wavelength band among the plurality of wavelength bands and a phase retardation profile corresponding to light of a second wavelength band among the plurality of wavelength bands monotonically changes with a certain amount of change, the first wavelength band being longer than the second wavelength band.