US 11,953,698 B1
Spatially multiplexed diffractive lens with extended depth of field via phase correction
Mohammadreza Khorasaninejad, Milpitas, CA (US); Huiqin Zhang, Philadelphia, PA (US); and Jiang You, Fremont, CA (US)
Assigned to Leadoptik Inc., San Jose, CA (US)
Filed by Leadoptik Inc., San Jose, CA (US)
Filed on Oct. 10, 2023, as Appl. No. 18/484,367.
Int. Cl. G02B 6/28 (2006.01); G02B 5/30 (2006.01); G02B 6/24 (2006.01); G02B 27/09 (2006.01)
CPC G02B 27/0905 (2013.01) [G02B 5/3083 (2013.01); G02B 27/0944 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method implemented on a computer system for designing a spatially multiplexed optic having two or more subapertures with corresponding optical functions, the method comprising:
determining complex amplitude profiles for the subapertures, based on achieving the corresponding optical functions for the subapertures;
selecting a merit function indicative of an optical performance of the spatially multiplexed optic; and
adding a constant phase offset to one or more of the complex amplitude profiles, based on improving the merit function.