US Patent No. 9,134,587

OPTICAL IMAGE STABLILIZER DETECTING X DIRECTION DISPLACEMENT AND Y DIRECTION DISPLACEMENT OF LENS GROUP


Patent No. 9,134,587
Issue Date September 15, 2015
Title Optical Image Stablilizer Detecting X Direction Displacement And Y Direction Displacement Of Lens Group
Inventorship Soo Cheol Lim, Gyunggi-do (KR)
Byung Woo Kang, Gyunggi-do (KR)
Sang Min On, Gyunggi-do (KR)
Assignee Samsung Electro-Mechanics Co., Ltd., Suwon-si (KR)

Claim of US Patent No. 9,134,587

1. An optical image stabilizer comprising:
a drive unit including a magnet and a coil, the magnet being disposed in a direction perpendicularly intersecting with a Z
direction of a lens group which is an optical axis direction of a camera module; and

a Hall sensor disposed to be opposed to the magnet in a direction facing the magnet,
wherein the Hall sensor detects change in magnetic force when the magnet moves in a direction intersecting with the Hall sensor,
the Hall sensor detects change in magnetic force when the magnet moves in a direction changing mutual interval between the
magnet and the Hall sensor, thus the Hall sensor can detect X direction displacement and Y direction displacement of the lens
group.