US 12,451,280 B2
Driving mechanism
Guan-Bo Wang, Taoyuan (TW); Yi-Chi Hsieh, Taoyuan (TW); Chen-Hsin Huang, Taoyuan (TW); Kai-Po Fan, Taoyuan (TW); and Sheng-Chang Lin, Taoyuan (TW)
Assigned to TDK TAIWAN CORP., Taoyuan (TW)
Filed by TDK TAIWAN CORP., Taoyuan (TW)
Filed on Oct. 24, 2022, as Appl. No. 17/971,779.
Claims priority of provisional application 63/270,806, filed on Oct. 22, 2021.
Prior Publication US 2023/0129823 A1, Apr. 27, 2023
Int. Cl. G02B 7/04 (2021.01); G02B 7/00 (2021.01); G02B 7/02 (2021.01); G02B 7/08 (2021.01); G02B 7/09 (2021.01); G02B 27/64 (2006.01); G03B 9/14 (2021.01); H01F 7/08 (2006.01); H01F 7/16 (2006.01); H04N 23/51 (2023.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01)
CPC H01F 7/081 (2013.01) [G02B 7/008 (2013.01); G02B 7/02 (2013.01); G02B 7/023 (2013.01); G02B 7/04 (2013.01); G02B 7/08 (2013.01); G02B 27/646 (2013.01); G03B 9/14 (2013.01); H01F 7/16 (2013.01); H04N 23/51 (2023.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01)] 24 Claims
OG exemplary drawing
 
1. A driving mechanism, comprising:
a fixed part;
a movable part, movably connected to the fixed part for holding an optical element, wherein the optical element defines an optical axis;
a driving assembly, configured to drive the movable part to move relative to the fixed part; and
an upper spring sheet, connecting the movable part to the fixed part, wherein the movable part forms a first cavity, the upper spring sheet forms a through hole communicated with the first cavity, and the width of the through hole is less than the width of the first cavity;
wherein a rib is formed on a bottom surface of the first cavity, and the height of the rib is less than the depth of the first cavity.