US 11,927,875 B2
Lens driving device, camera module, and camera-mounted device
Masayoshi Sugawara, Tokyo (JP)
Assigned to MITSUMI ELECTRIC CO., LTD., Tokyo (JP)
Filed by Masayoshi Sugawara, Tokyo (JP)
Filed on Sep. 17, 2020, as Appl. No. 17/023,481.
Application 17/023,481 is a continuation of application No. 16/234,633, filed on Dec. 28, 2018, granted, now 10,809,489.
Claims priority of application No. 2017-254222 (JP), filed on Dec. 28, 2017.
Prior Publication US 2021/0003812 A1, Jan. 7, 2021
Int. Cl. G03B 13/36 (2021.01); G02B 7/09 (2021.01); G02B 27/64 (2006.01); G03B 3/00 (2021.01); G03B 5/02 (2021.01); G03B 5/06 (2021.01); G03B 13/32 (2021.01); H02K 11/215 (2016.01); H02K 41/035 (2006.01); H04N 23/68 (2023.01)
CPC G03B 13/36 (2013.01) [G02B 7/09 (2013.01); G02B 27/646 (2013.01); G03B 3/00 (2013.01); G03B 5/02 (2013.01); G03B 5/06 (2013.01); G03B 13/32 (2013.01); H02K 11/215 (2016.01); H02K 41/0356 (2013.01); H04N 23/687 (2023.01); G03B 2205/0023 (2013.01); G03B 2205/0069 (2013.01); H02K 2201/18 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A lens driving device, comprising:
an autofocus movable part;
an autofocus fixing part disposed spaced apart from the autofocus movable part;
an autofocus driving section being configured to move the autofocus movable part in an optical-axis direction with respect to the autofocus fixing part;
an optical image stabilization movable part including the autofocus movable part, the autofocus fixing part, and the autofocus driving section;
an optical image stabilization fixing part disposed spaced apart from the optical image stabilization movable part; and
an optical image stabilization driving section being configured to sway the optical image stabilization movable part in a plane orthogonal to the optical-axis direction with respect to the optical image stabilization fixing part,
wherein the autofocus movable part includes a first position detection magnet,
wherein the optical image stabilization fixing part includes a first hall element to be provided facing the first position detection magnet in the optical-axis direction and to detect a position of the autofocus movable part in the optical-axis direction, and
wherein the first position detection magnet is a single-pole magnet having a cylindrical shape and magnetized in a height direction of the first position detection magnet, and is disposed such that the height direction coincides with the optical-axis direction.