US 12,449,719 B2
Phased metalens depth of focus increase for camera focusing
Ronald M. Taylor, Greentown, IN (US); and Morgan Daniel Murphy, Kokomo, IN (US)
Assigned to APTIV TECHNOLOGIES AG, Schaffhausen (CH)
Filed by Aptiv Technologies AG, Schaffhausen (CH)
Filed on Sep. 6, 2022, as Appl. No. 17/930,030.
Prior Publication US 2024/0077784 A1, Mar. 7, 2024
Int. Cl. G03B 13/32 (2021.01); G06V 20/56 (2022.01); H04N 23/67 (2023.01)
CPC G03B 13/32 (2013.01) [H04N 23/67 (2023.01); G06V 20/56 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising: an objective camera lens configured to provide a focus window across multiple radial zones within a field of view; a camera imager configured to capture an image of the field of view, wherein at least two of the radial zones have different back focal lengths relative to the camera imager and the objective camera lens; a phased metalens configured to compensate for defocus caused by the different back focal lengths by increasing, across the radial zones within the field of view, a depth of the focus window.