公开(公告)号：US20220159187A1

公开(公告)日：2022-05-19

申请号：US17177640

申请日：2021-02-17

Applicant: LARGAN DIGITAL CO., LTD.

Inventor： Yu Chen LAI ,  Ming-Ta CHOU ,  Liang Chieh WENG ,  Ming-Shun CHANG

IPC: H04N5/232 ,  G03B5/02 ,  G02B27/64

Abstract: An actuator is configured to drive an imaging lens system. The actuator includes a frame portion configured to accommodate the imaging lens system, a supporting portion disposed on the frame portion, a driving portion configured to drive the imaging lens system to move, an optical mark structure disposed on part of the frame portion, the supporting portion or the driving portion and a liquid disposed on the optical mark structure. The supporting portion is configured to support the imaging lens system and give the imaging lens system a degree of freedom of movement with respect to the frame portion. The optical mark structure includes a plurality of optical mark units arranged side by side. The liquid is in physical contact with the imaging lens system, the frame portion, the supporting portion or the driving portion that is adjacent to the optical mark structure.