Hong Kong Applied Science and Technology Research Institute Company, Limited

Kin Ming Fan

Kwok Sing Cheng

Sio Kuan Lam

Hua Yang

Wing Ming Fan

Chuen Kuen Yeung

Kai Cheong Kwan

Tiegang Liu

Man Yee Pang

Kowk Sing Cheng

The subject matter disclosed herein relates to an imaging module comprising an electromagnetic actuator to provide focus-related and image stabilization-related functionality.

Lens moving apparatus

The subject matter disclosed herein relates to an optical module that includes a plurality of lenses and an electromagnetic actuator to adjust a zoom level or focus of the optical module.

Multi-lens imaging module and actuator with auto-focus adjustment

An apparatus for adjusting a zoom lens that includes a mechanical structure having a plurality of lens assemblies and an actuator to adjust a zoom level or focus of the apparatus.

Lens positioning structure for zoom lens

A compact camera modules has first, second, and third lens groups that move along an optical axis. A stepping motor is centered on the optical axis rather than offset from the optical axis. The motor has two coils that are fixed in place and a shared rotating magnet. The magnet is attached to a rotating guide that has slots to move the first and second lens groups as it rotates. The two coils are alternately energized to rotate the magnet, the rotating guide, and to move the first and second lens groups for zoom. The magnet has alternating thicker and thinner segments of opposite polarity. The thicker segments exert a greater force on an autofocus coil that is energized to move the third lens for the autofocus function. The same shared rotating magnet is used for both zoom and autofocus functions. A more compact design is possible using a shared magnet.

Compact camera module with zoom and auto-focus actuators sharing the same rotating annular magnet with alternating thick and thin poles

Subject matter disclosed herein may relate to lens actuators used, for example, in auto-focus and/or vibration compensation systems of digital cameras.

Multi-drive mechanism lens actuator

The subject matter disclosed herein relates to an optical module that includes interchangeable lenses to adjust a zoom level or focus of the optical module.

Interchangeable zoom lens actuator with auto-focus adjustment

The subject matter disclosed herein relates to an imaging device including a laminated portion of an actuator or actuator support.

Compact imaging device having a laminated component

The subject matter disclosed herein relates to electromagnetic force generation for an imaging device having a small form factor.

Magnetic structure for compact imaging device

The subject matter disclosed herein relates to an imaging device having a small form factor.

Compact imaging device

An imaging apparatus may comprise a lens assembly including one or more lenses, an image sensor to receive light from the lens assembly, and an actuator to adjust a position of the lens assembly. An actuator may be mounted on an image sensor, wherein a surface area of the actuator need not extend substantially beyond a surface area of the image sensor.

A lens actuation device for an optical system includes a housing, a carrier at least partially installed in the housing, and a plurality of transducers arranged around the carrier in the housing. All the transducers are coupled with the mount, and at least one transducer includes at least one magnet and at least one coil. At least one transducer includes at least one yoke. All the transducers when powered on may generate independent or consistent movement to cause the mount to make linear movement, rotation, or both relative to the housing. An optical system adopting the lens actuation device and a camera using the same are also presented. The device of the present invention uses the transducers to drive the carrier, such that the lens set is driven to make linear movement, rotation, or both, thereby achieving the flexible manipulation of the lens.

Lens actuation device, optical system and camera

The subject matter disclosed herein relates to an actuator to adjust a position of a lens.

Growing community of inventors

Hong Kong, China

Kin Ming Fan