US 11,988,952 B2
Lens driving devices and driving methods thereof
Hui-Yuan Liang, Taichung (TW); Chien-Heng Yu, Taichung (TW); and Zi-Ying Ye, Taichung (TW)
Assigned to SINTAI OPTICAL (SHENZHEN) CO., LTD., Shenzhen (CN); and ASIA OPTICAL CO., INC., Taichung (TW)
Filed by Sintai Optical (Shenzhen) Co., Ltd., ShenZhen (CN); and Asia Optical Co., Inc., Taichung (TW)
Filed on May 13, 2022, as Appl. No. 17/743,901.
Claims priority of application No. 110119068 (TW), filed on May 26, 2021.
Prior Publication US 2022/0390812 A1, Dec. 8, 2022
Int. Cl. G03B 5/02 (2021.01); H02K 41/035 (2006.01)
CPC G03B 5/02 (2013.01) [H02K 41/0354 (2013.01); G03B 2205/0069 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lens driving device, comprising:
at least one lens frame carrying at least one optical element;
a magnetic group comprising a plurality of pairs of magnetic elements;
at least one driving element group comprising at least two coils;
a control device supplying power to the at least one driving element group so that the at least one lens frame is driven by the at least one driving element group to move;
wherein the at least one driving element group is disposed on the at least one lens frame, and the amount of the at least one lens frame is equal to that of the at least one driving element group;
wherein the control device in a first driving state supplies the power to the at least two coils of the at least one driving element group in sequence so that the at least one driving element group is moved from a pair of magnetic elements to another pair of magnetic elements;
wherein the control device in a second driving state supplies the power to the at least one driving element group so that the at least one driving element group is moved, without beyond the another pair of magnetic elements, from a first position to a predetermined position.