公开(公告)号：US20210409601A1

公开(公告)日：2021-12-30

申请号：US16915730

申请日：2020-06-29

Applicant: Western Digital Technologies, Inc.

Inventor： Quang LE ,  Zhigang BAI ,  Xiaoyong LIU ,  Zhanjie LI ,  Kuok San HO ,  Rajeev NAGABHIRAVA

IPC: H04N5/232 ,  H04N5/225 ,  G03B13/36 ,  G03B3/10

Abstract: Aspects of the present disclosure relate to optical devices and related methods that facilitate independent control of movement of lenses and image sensors in camera systems. In one example, an image sensor is movable independently of and relative to a lens, and the lens is movable independently of the image sensor. In one example, an optical device includes a lens, and an image sensor disposed below the lens. The image sensor is movable relative to the lens. The optical device includes a plurality of magnets disposed about the lens, a plurality of vertical coil structures coiled in one or more vertical planes, and one or more horizontal coil structures coiled in one or more horizontal planes. The plurality of vertical coil structures are configured to, when powered, move the image sensor relative to the lens. The one or more horizontal coil structures are configured to, when powered, move the lens.

公开(公告)号：US20210409600A1

公开(公告)日：2021-12-30

申请号：US16915723

申请日：2020-06-29

Applicant: Western Digital Technologies, Inc.

Inventor： Quang Le ,  Zhigang BAI ,  Xiaoyong LIU ,  Zhanjie LI ,  Kuok San HO ,  Rajeev NAGABHIRAVA

IPC: H04N5/232 ,  G02B7/09 ,  G03B13/36 ,  H02K41/035 ,  H04N5/225

Abstract: Aspects of the present disclosure relate to optical devices and related methods that facilitate independent control of movement of lenses and image sensors in camera systems. In one example, an image sensor is movable independently of and relative to a lens, and the lens is movable independently of the image sensor. In one example, an optical device includes a lens, and an image sensor disposed below the lens. The image sensor is movable relative to the lens. The optical device includes a plurality of magnets disposed about the lens, a plurality of vertical coil structures coiled in one or more vertical planes, and one or more horizontal coil structures coiled in one or more horizontal planes. The plurality of vertical coil structures are configured to, when powered, move the image sensor relative to the lens. The one or more horizontal coil structures are configured to, when powered, move the lens.

公开(公告)号：US20220078348A1

公开(公告)日：2022-03-10

申请号：US17455862

申请日：2021-11-19

Applicant: Western Digital Technologies, Inc.

Inventor： Quang LE ,  Rajeev NAGABHIRAVA ,  Kuok San HO ,  Zhigang BAI ,  Zhanjie LI ,  Xiaoyong LIU ,  Daniele MAURI

IPC: H04N5/232 ,  H04N5/225 ,  G03B3/10 ,  G03B13/36

Abstract: Aspects of the present disclosure generally relate to optical devices and related methods that facilitate tilt in camera systems, such as tilt of a lens. In one example, an optical device includes a lens, an image sensor disposed below the lens, a plurality of magnets disposed about the lens, and a plurality of: (1) vertical coil structures coiled in one or more vertical planes and (2) horizontal coil structures coiled in one or more horizontal planes. When power is applied, the coil structures can generate magnetic fields that, in the presence of the magnets, cause relative movement of the coil structures and associated structures. The plurality of vertical coil structures are configured to horizontally move the lens. The plurality of horizontal coil structures are configured to tilt the lens when differing electrical power is applied to at least two of the plurality of horizontal coil structures.

公开(公告)号：US20210405131A1

公开(公告)日：2021-12-30

申请号：US16912500

申请日：2020-06-25

Applicant: Western Digital Technologies, Inc.

Inventor： Xiaoyong LIU ,  Quang LE ,  Zhigang BAI ,  Daniele MAURI ,  Zhanjie LI ,  Kuok San HO ,  Thao A. NGUYEN ,  Rajeev NAGABHIRAVA

IPC: G01R33/09 ,  G01R27/14

Abstract: The present disclosure generally relates to sensor device, such as a magnetic sensor bridge, that utilizes a dual free layer (DFL) structure. The device includes a plurality of resistors that each includes the same DFL structure. Adjacent the DFL structure is a magnetic structure that can include a permanent magnet, an antiferromagnetic (AFM) layer having a synthetic AFM (SAF) structure thereon, a permanent magnetic having a SAF structure thereon, or an AFM layer having a ferromagnetic layer thereon. The DFL structures are aligned with different layers of the magnetic structures to differentiate the resistors. The different alignment and/or different magnetic structures result in a decrease in production time due to reduced complexity and, thus, reduces costs.