US 12,231,756 B2
Compact long focal length auto-focus lens with actively aligned front compensator
Alexander J. Naney, Kings Park, NY (US); Igor Vinogradov, Oakdale, NY (US); Carl D. Wittenberg, Water Mill, NY (US); David Tsi Shi, Setauket, NY (US); and Vladimir Gurevich, Great Neck, NY (US)
Assigned to Zebra Technologies Corporation, Lincolnshire, IL (US)
Filed by ZEBRA TECHNOLOGIES CORPORATION, Lincolnshire, IL (US)
Filed on Oct. 31, 2022, as Appl. No. 17/977,173.
Prior Publication US 2024/0147040 A1, May 2, 2024
Int. Cl. H04N 23/55 (2023.01)
CPC H04N 23/55 (2023.01) 17 Claims
OG exemplary drawing
 
1. An optical assembly for an autofocus lens system, the assembly comprising:
a compensator lens assembly disposed along an optical axis, the compensator lens assembly configured to receive light along the optical axis and to provide tuning of a flange focal length of the optical assembly;
a variable focus assembly including a variable focus optical element disposed along the optical axis, the variable focus optical element disposed to receive light from the compensator lens assembly, the variable focus optical element having a tunable focal plane; and
a fixed focus optical group disposed along the optical axis, the fixed focus optical group disposed to receive the light from the variable focus assembly, the fixed focus optical group configured to focus the light at the flange focal length of the optical assembly.