Patents by Inventor Sio Kuan Lam

Sio Kuan Lam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9910289
    Abstract: A miniature lens driving apparatus includes an optical image stabilization mechanism having a lens holder for holding therein a lens which defines an optical axis, an autofocus mechanism having an autofocus moving platform, and a plurality of wires adapted to couple the lens holder with the autofocus moving platform. The optical image stabilization mechanism is capable of moving the lens holder along a direction substantially perpendicular to the optical axis, and the autofocus mechanism is capable of moving the autofocus moving platform along the optical axis.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: March 6, 2018
    Assignee: Sunming Technologies (HK) Limited
    Inventor: Sio Kuan Lam
  • Patent number: 9766426
    Abstract: A miniature lens driving apparatus includes plurality of wires, an optical image stabilizing (OIS) mechanism having a lens holder, at least one magnet, and a plurality of coils; and an autofocus (AF) mechanism having an AF moving platform movable along an optical axis, at least one coil, and at least one magnet; wherein the said plurality of coils of the OIS mechanism operatively associates with the said at least one magnet of the OIS mechanism to move the said lens holder of the OIS mechanism along a direction substantially perpendicular to the optical axis; wherein the said at least one coil of the AF mechanism operatively associates with the said at least one magnet of the AF mechanism to move the said AF moving platform along the optical axis.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: September 19, 2017
    Assignee: Summing Technologies (HK) Limited
    Inventor: Sio Kuan Lam
  • Patent number: 9599836
    Abstract: A compact electromagnetic actuator for driving a lens includes a lens holder used to hold a lens or a lens assembly which defines an optical axis, an image stabilization (IS) actuator provided at one end of the lens holder for producing a linear motion in a plane perpendicular to the optical axis, and an autofocus (AF) actuator provided at an opposite end of the lens holder for producing a linear motion along the optical axis. An AF connection mechanism can be used to connect the autofocus actuator to the lens holder. An IS connection mechanism can be used to connect the image stabilization actuator to the lens holder.
    Type: Grant
    Filed: January 18, 2014
    Date of Patent: March 21, 2017
    Assignee: SUNMING TECHNOLOGIES (HK) LIMITED
    Inventor: Sio Kuan Lam
  • Publication number: 20170017057
    Abstract: A miniature lens driving apparatus includes a housing, at least two strings, an optical image stabilization (OIS) mechanism, and an autofocus (AF) mechanism. The OIS mechanism includes a lens holder. The AF mechanism includes an AF moving holder, an upper spring sheet, and a lower spring sheet. An internal connecting portion and an outer connecting portion of the upper spring sheet are connected to an upper end of the AF moving holder and a stationary part of the AF mechanism, respectively. An internal connecting portion and an outer connecting portion of the lower spring sheet are connected to a lower end of the AF moving holder and the stationary part of the AF mechanism, respectively. The two ends of each of the at least two strings are connected to the lens holder and a lower portion of the AF moving holder, respectively. An electronic image-capturing device is also disclosed.
    Type: Application
    Filed: July 15, 2016
    Publication date: January 19, 2017
    Inventor: Sio Kuan Lam
  • Publication number: 20170010474
    Abstract: A miniature lens driving apparatus is provided, including a housing 4, at least two strings 3, an optical image stabilization mechanism 2, and an autofocus mechanism 1, wherein the optical image stabilization mechanism 2 includes a lens holder 21 for holding an imaging lens, the optical image stabilization mechanism 2 may move the lens holder along a direction substantially perpendicular to an optical axis, the autofocus mechanism 1 includes an autofocus moving holder 11 (or referred to as an autofocus moving platform), the autofocus mechanism 1 may move the autofocus moving holder along a direction of the optical axis, one end of each of the at least two strings 3 is connected to the lens holder 21, and the other end of each of the at least two strings 3 is connected to the autofocus moving holder 11.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 12, 2017
    Inventor: Sio Kuan Lam
  • Publication number: 20160356980
    Abstract: A lens driving apparatus includes a spring suspension system and an electromagnetic force generator. The spring suspension system may include a pair of leaf springs, a stationary rigid body sandwiched between the pair of springs, and a lens holder suspended by the pair of springs within a central bore of the rigid body. The electromagnetic force generator may include a coil holder holding a coil and a magnet holder holding at least one magnet. The spring suspension system and the electromagnetic force generator are connected to and spatially separated from each other by a spacer. A method for manufacturing a lens driving apparatus is also disclosed.
    Type: Application
    Filed: July 11, 2016
    Publication date: December 8, 2016
    Inventor: Sio Kuan Lam
  • Patent number: 9482871
    Abstract: An optical system for light energy concentration may comprise a light concentrator including two or more light-converging elements, a light splitting element to receive the converging light from the light-converging elements and to produce light having a first spectral component and light having a second spectral component, and a light directing element to direct the light having the first spectral component through a light guide and to direct the light having the second spectral component to a location external to the light guide.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: November 1, 2016
    Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Sio Kuan Lam, Tao Pan, Wei Zhou
  • Patent number: 9429750
    Abstract: A dust-free lens driving apparatus includes a lens holder for holding a lens, a housing having a central bore in which the lens holder moves, and a film having a first contact region, a second contact region and a buffer region. The first contact region is defined by a first peripheral portion of the film and is used to sealingly attach the film to and around the lens holder. The second contact region is defined by a second peripheral portion of the film and is used to sealingly attach the film to and around a connection portion of the housing. The buffer region is defined by a remaining region of the film between the first and second contact regions and is used to seal an exit of a gap between the lens holder and the housing.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: August 30, 2016
    Assignee: SUNMING TECHNOLOGIES (HK) LIMITED
    Inventor: Sio Kuan Lam
  • Patent number: 9389391
    Abstract: A lens driving apparatus includes a spring suspension system and an electromagnetic force generator. The spring suspension system may include a pair of leaf springs, a stationary rigid body sandwiched between the pair of springs, and a lens holder suspended by the pair of springs within a central bore of the rigid body. The electromagnetic force generator may include a coil holder holding a coil and a magnet holder holding at least one magnet. The spring suspension system and the electromagnetic force generator are connected to and spatially separated from each other by a spacer. A method for manufacturing a lens driving apparatus is also disclosed.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: July 12, 2016
    Assignee: SUNMING TECHNOLOGIES (HK) LIMITED
    Inventor: Sio Kuan Lam
  • Publication number: 20160109681
    Abstract: A miniature lens driving apparatus includes plurality of wires, an optical image stabilizing (OIS) mechanism having a lens holder, at least one magnet, and a plurality of coils; and an autofocus (AF) mechanism having an AF moving platform movable along an optical axis, at least one coil, and at least one magnet; wherein the said plurality of coils of the OIS mechanism operatively associates with the said at least one magnet of the OIS mechanism to move the said lens holder of the OIS mechanism along a direction substantially perpendicular to the optical axis; wherein the said at least one coil of the AF mechanism operatively associates with the said at least one magnet of the AF mechanism to move the said AF moving platform along the optical axis.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 21, 2016
    Inventor: Sio Kuan Lam
  • Patent number: 9310584
    Abstract: A lens driving apparatus includes a housing, a lens holder mounted on a base of the housing and moveable along an optical axis, a stationary guide member provided on the base, and a moveable guide member provided on and moveable with the lens holder, wherein the moveable guide member is frictionally engaged with the stationary guide member and slidable therealong when the lens holder is activated. The apparatus further include a plurality of magnets with magnetization direction lying on a plane perpendicular to the optical axis, a coil disposed adjacent and parallel to the magnets, and a position encoder provided on the lens holder or the support for close loop control of the movement of the lens holder.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: April 12, 2016
    Assignee: Sunming Technologies (HK) Limited
    Inventor: Sio Kuan Lam
  • Publication number: 20160097937
    Abstract: A miniature lens driving apparatus includes an optical image stabilization mechanism having a lens holder for holding therein a lens which defines an optical axis, an autofocus mechanism having an autofocus moving platform, and a plurality of wires adapted to couple the lens holder with the autofocus moving platform. The optical image stabilization mechanism is capable of moving the lens holder along a direction substantially perpendicular to the optical axis, and the autofocus mechanism is capable of moving the autofocus moving platform along the optical axis.
    Type: Application
    Filed: May 15, 2015
    Publication date: April 7, 2016
    Inventor: Sio Kuan Lam
  • Patent number: 9002188
    Abstract: Subject matter disclosed herein may relate to lens actuators used, for example, in auto-focus and/or vibration compensation systems of digital cameras.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: April 7, 2015
    Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Kin Ming Fan, Sio Kuan Lam, Kwok Sing Cheng, Wing Ming Fan, Hua Yang, Tiegang Liu
  • Publication number: 20150077852
    Abstract: A compact electromagnetic actuator for driving a lens includes a lens holder used to hold a lens or a lens assembly which defines an optical axis, an image stabilization (IS) actuator provided at one end of the lens holder for producing a linear motion in a plane perpendicular to the optical axis, and an autofocus (AF) actuator provided at an opposite end of the lens holder for producing a linear motion along the optical axis. An AF connection mechanism can be used to connect the autofocus actuator to the lens holder. An IS connection mechanism can be used to connect the image stabilization actuator to the lens holder.
    Type: Application
    Filed: January 18, 2014
    Publication date: March 19, 2015
    Inventor: Sio Kuan Lam
  • Publication number: 20150070791
    Abstract: A lens driving apparatus includes a housing, a lens holder mounted on a base of the housing and moveable along an optical axis, a stationary guide member provided on the base, and a moveable guide member provided on and moveable with the lens holder, wherein the moveable guide member is frictionally engaged with the stationary guide member and slidable therealong when the lens holder is activated. The apparatus further include a plurality of magnets with magnetization direction lying on a plane perpendicular to the optical axis, a coil disposed adjacent and parallel to the magnets, and a position encoder provided on the lens holder or the support for close loop control of the movement of the lens holder.
    Type: Application
    Filed: May 29, 2014
    Publication date: March 12, 2015
    Applicant: SUNMING TECHNOLOGIES (HK) LIMITED
    Inventor: Sio Kuan Lam
  • Publication number: 20150070765
    Abstract: A dust-free lens driving apparatus includes a lens holder for holding a lens, a housing having a central bore in which the lens holder moves, and a film having a first contact region, a second contact region and a buffer region. The first contact region is defined by a first peripheral portion of the film and is used to sealingly attach the film to and around the lens holder. The second contact region is defined by a second peripheral portion of the film and is used to sealingly attach the film to and around a connection portion of the housing. The buffer region is defined by a remaining region of the film between the first and second contact regions and is used to seal an exit of a gap between the lens holder and the housing.
    Type: Application
    Filed: May 21, 2014
    Publication date: March 12, 2015
    Applicant: SUNMING TECHNOLOGIES (HK) LIMITED
    Inventor: Sio Kuan Lam
  • Publication number: 20150070790
    Abstract: A lens driving apparatus includes a spring suspension system and an electromagnetic force generator. The spring suspension system may include a pair of leaf springs, a stationary rigid body sandwiched between the pair of springs, and a lens holder suspended by the pair of springs within a central bore of the rigid body. The electromagnetic force generator may include a coil holder holding a coil and a magnet holder holding at least one magnet. The spring suspension system and the electromagnetic force generator are connected to and spatially separated from each other by a spacer. A method for manufacturing a lens driving apparatus is also disclosed.
    Type: Application
    Filed: April 17, 2014
    Publication date: March 12, 2015
    Applicant: SUNMING TECHNOLOGIES (HK) LIMITED
    Inventor: Sio Kuan Lam
  • Patent number: 8633991
    Abstract: The subject matter disclosed herein relates to an imaging device having a small form factor.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 21, 2014
    Assignee: Hong Kong Applied Science and Technology Research Institute Co. Ltd.
    Inventors: Sio Kuan Lam, Chuen Kuen Yeung
  • Patent number: 8564896
    Abstract: The subject matter disclosed herein relates to an imaging device having a small form factor.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: October 22, 2013
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Man Yee Pang, Kin Ming Fan, Kwok Sing Cheng, Sio Kuan Lam
  • Publication number: 20130208369
    Abstract: An apparatus for controlling optical-system inclination/rotation center, comprising a housing (200); a bracket (201) installed in the housing (200) for loading lenses; and a first spring system (202) and a second spring system (203) connected onto the housing (200) and the bracket (201), wherein either one of the spring systems is a planar spring system and comprised of at least one leaf spring, the surface of each leaf spring being generally parallel to the plane of the spring system; the planes of the first spring system (202) and the second spring system (203) being generally parallel with each other, and the normal direction of each spring system being generally parallel to the center axis of the bracket (201) or the lens optical axis; the effective elastic coefficient of said first spring system (202) in the lens axis direction is far less than that in the direction perpendicular to the lens axis; the effective elastic coefficient of the second spring system (203) in each direction is far less than that
    Type: Application
    Filed: August 19, 2011
    Publication date: August 15, 2013
    Inventor: Sio Kuan Lam