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    Method of marking a diamond, markings formed from such methods and diamonds marked according to such method
    1.
    发明授权
    Method of marking a diamond, markings formed from such methods and diamonds marked according to such method 有权

    公开(公告)号：US12030217B2

    公开(公告)日：2024-07-09

    申请号：US17624332

    申请日：2020-07-24

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Yau Chuen Yiu ,  Ka Wing Cheng ,  Koon Chung Hui

    IPC: B28D5/04 ,  B42D25/324 ,  B42D25/435

    CPC classification number: B28D5/04 ,  B42D25/324 ,  B42D25/435

    Abstract: A process of forming a non-optically detectable authentication marking (110), includes the step of: applying a marking at a surface of a diamond (200) using a focused ion beam (FIB) writing process so as to provide a non-optically detectable authentication marking (110) which is formed by alteration in the optical characteristics of a portion of the diamond material at the outer surface of the diamond to form a marked portion; wherein the marking is optically invisible, and wherein the marking is viewable by an imaging method which provides an observable contrast between the portion of the diamond having altered optical characteristics and the non-marked portion of the diamond. The marking process can assist in the prevention of the counterfeiting of precious articles, and be of assistance in the incident of theft. A marking, a diamond, a process of viewing a marking on a diamond are further disclosed.

    METHOD OF MARKING A SOLID-STATE MATERIAL, MARKINGS FORMED FROM SUCH METHODS AND SOLID-STATE MATERIALS MARKED ACCORDING TO SUCH A METHOD
    2.
    发明申请
    METHOD OF MARKING A SOLID-STATE MATERIAL, MARKINGS FORMED FROM SUCH METHODS AND SOLID-STATE MATERIALS MARKED ACCORDING TO SUCH A METHOD 有权

    公开(公告)号：US20220355416A1

    公开(公告)日：2022-11-10

    申请号：US17624325

    申请日：2020-07-24

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Yau Chuen YIU ,  Ka Wing CHENG ,  Koon Chung HUI

    IPC: B23K26/359 ,  G06V20/80 ,  B23K26/0622 ,  B23K26/06 ,  B23K26/082 ,  B23K26/08

    Abstract: A process of forming a non-optically detectable authentication marking (210,320, 410,535) in a diamond (200,300). Authentication marking (210,320,410,535) is formed adjacent the outer surface of an article formed from a diamond material having intrinsic optical centers. Method includes the step of applying an image of predesigned authentication marking(210,320,410,535) to a region (201,310,530) of a diamond (200,300) at or adjacent the surface of the diamond (200,300) by way of a direct laser writing; wherein the fluorescence background of the diamond material from intrinsic optical center is suppressed by authentication marking(210,320, 410, 535) under fluorescent imaging, such that the non-optically detectable identifiable authentication marking (210,320,410,535) is viewable against the fluorescence background at the region (201,310,530) of the diamond (200,300) where the authentication marking (210,320,410,535) is applied.

    METHOD OF MARKING A DIAMOND, MARKINGS FORMED FROM SUCH METHODS AND DIAMONDS MARKED ACCORDING TO SUCH METHOD
    3.
    发明申请
    METHOD OF MARKING A DIAMOND, MARKINGS FORMED FROM SUCH METHODS AND DIAMONDS MARKED ACCORDING TO SUCH METHOD 有权

    公开(公告)号：US20220274291A1

    公开(公告)日：2022-09-01

    申请号：US17624332

    申请日：2020-07-24

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Yau Chuen YIU ,  Ka Wing CHENG ,  Koon Chung HUI

    IPC: B28D5/04 ,  B42D25/435 ,  B42D25/324

    Abstract: A process of forming a non-optically detectable authentication marking (110), includes the step of: applying a marking at a surface of a diamond (200) using a focused ion beam (FIB) writing process so as to provide a non-optically detectable authentication marking (110) which is formed by alteration in the optical characteristics of a portion of the diamond material at the outer surface of the diamond to form a marked portion; wherein the marking is optically invisible, and wherein the marking is viewable by an imaging method which provides an observable contrast between the portion of the diamond having altered optical characteristics and the non-marked portion of the diamond. The marking process can assist in the prevention of the counterfeiting of precious articles, and be of assistance in the incident of theft. A marking, a diamond, a process of viewing a marking on a diamond are further disclosed.

    SILICON OVERCOIL BALANCE SPRING
    6.
    发明申请
    SILICON OVERCOIL BALANCE SPRING 有权
    硅胶平衡弹簧

    公开(公告)号：US20150029828A1

    公开(公告)日：2015-01-29

    申请号：US14444918

    申请日：2014-07-28

    Applicant: Master Dynamic Limited

    Inventor： Ying Nan WANG ,  Ho CHING

    IPC: G04B17/06

    CPC classification number: G04B17/066 ,  G04B17/32 ,  G04B17/325 ,  G04D3/0041 ,  Y10T29/49579

    Abstract: A method of producing unitary formed silicon balance spring having an overcoil portion for regulation of a mechanical timepiece, said method including the steps of providing a silicon balance spring having a main body portion, and an outer portion for formation as an overcoil portion, wherein the outer portion extends radially outward from an outermost turn of the main body portion, and wherein said main body portion and said outer portion are integrally formed from a silicon based material and are formed in a co-planar configuration; moving said outer portion in a direction relative to and out of the plane of said main body portion, and in a direction towards over said main body portion and towards the plane of the main body portion; and providing a stress relaxation process to the balance spring so as to relieve internal stresses induced within the balance spring from step (ii); wherein upon movement of said outer portion into the plane of said main body portion, the outer portion is located in an overcoil configuration relative to said main body portion.

    Abstract translation: 一种制造具有用于调节机械钟表的上线圈部分的单一成形硅平衡弹簧的方法，所述方法包括以下步骤：提供具有主体部分的硅平衡弹簧和用于形成外壳线圈部分的外部部分，其中， 外部部分从主体部分的最外圈径向向外延伸，并且其中所述主体部分和所述外部部分由硅基材料一体地形成并且形成为共面构造; 在相对于所述主体部分的平面的方向上移动所述外部部分，并沿着朝向所述主体部分的方向朝向主体部分的平面移动; 以及向所述平衡弹簧提供应力松弛过程，以便缓解来自步骤（ii）的所述平衡弹簧内引起的内部应力; 其中，当所述外部部分移动到所述主体部分的平面中时，所述外部部分相对于所述主体部分位于线圈结构中。

    STRESS-RELIEF ELASTIC STRUCTURE OF HAIRSPRING COLLET
    7.
    发明申请
    STRESS-RELIEF ELASTIC STRUCTURE OF HAIRSPRING COLLET 有权
    应力消除弹性弹性结构

    公开(公告)号：US20140198627A1

    公开(公告)日：2014-07-17

    申请号：US14154055

    申请日：2014-01-13

    Applicant: Master Dynamic Limited

    Inventor： Siu Kay CHU ,  Ho CHING ,  Pui Hang KO

    IPC: G04B17/34

    CPC classification number: G04B17/345

    Abstract: A hairspring collet for a hairspring for interference engagement and an interference fit with the cylindrical outer surface of the staff of a balance wheel for a timepiece movement, said hairspring collet portion comprising a plurality of circumferentially extending elastically deformable interconnected arm portions, the arm portions forming an annulus having a central axis and providing an aperture therebetween, wherein each arm portion including a curved concave engagement portion for engagement with the outer surface of a staff of a balance wheel, wherein each engagement portion has substantially the same radius of curvature as each other and are equally spaced from said central axis at a first distance and wherein said first distance is less than the radius of the staff of the balance wheel; said engagement portions have a radius of curvature such that upon deformation of the arm portions and engagement with the outer surface of said staff the engagement portions substantially conform with the outer surface of said staff and an interference fit is formed therebetween, wherein stress induced from said interference fit is transferred and distributed from along the engagement portions to the arm portions adjacent the engagement portions and distributed therein; and wherein the interference fit of the engagement portions with the staff substantially prevents relative movement between the hairspring collet and the staff of the balance wheel upon application of load from a hairspring in use in a timepiece movement.

    Abstract translation: 一种用于干扰接合的游丝的游丝夹头和与用于钟表运动的摆轮的工作人员的圆柱形外表面的过盈配合，所述游丝夹头部分包括多个周向延伸的可弹性变形的互连臂部分，所述臂部分形成 具有中心轴线并在其间提供孔的环形空间，其中每个臂部分包括用于与摆轮的工作人员的外表面接合的弯曲凹形接合部分，其中每个接合部分具有彼此基本相同的曲率半径 并且在第一距离处与所述中心轴线等距间隔，并且其中所述第一距离小于所述摆轮的所述人员的半径; 所述接合部分具有曲率半径，使得当所述臂部分变形并且与所述人员的外表面接合时，所述接合部分基本上与所述人员的外表面一致，并且在其间形成过盈配合，其中由所述 过盈配合从接合部分转移并分配到邻近接合部分的臂部分并分布在其中; 并且其中，当在手表运动中施加来自使用中的游丝的负载时，接合部分与工作人员的过盈配合基本上防止了游丝夹头和摆轮的工作人员之间的相对运动。

    METHOD OF MARKING A SOLID-STATE MATERIAL, MARKINGS FORMED FROM SUCH METHODS AND SOLID-STATE MATERIALS MARKED ACCORDING TO SUCH A METHOD
    8.
    发明申请
    METHOD OF MARKING A SOLID-STATE MATERIAL, MARKINGS FORMED FROM SUCH METHODS AND SOLID-STATE MATERIALS MARKED ACCORDING TO SUCH A METHOD 有权

    公开(公告)号：US20240383074A1

    公开(公告)日：2024-11-21

    申请号：US18417804

    申请日：2024-01-19

    Applicant: Master Dynamic Limited

    Inventor： Yau Chuen YIU ,  Ka Wing Cheng ,  Koon Chung Hui

    IPC: B23K26/359 ,  B23K26/06 ,  B23K26/0622 ,  B23K26/08 ,  B23K26/082 ,  G06V20/80

    Abstract: A process of forming a non-optically detectable authentication marking (210,320, 410,535) in a diamond (200,300). Authentication marking (210,320,410,535) is formed adjacent the outer surface of an article formed from a diamond material having intrinsic optical centers. Method includes the step of applying an image of predesigned authentication marking (210,320,410,535) to a region (201,310,530) of a diamond (200,300) at or adjacent the surface of the diamond (200,300) by way of a direct laser writing; wherein the fluorescence background of the diamond material from intrinsic optical center is suppressed by authentication marking (210,320, 410, 535) under fluorescent imaging, such that the non-optically detectable identifiable authentication marking (210,320,410,535) is viewable against the fluorescence background at the region (201,310,530) of the diamond (200,300) where the authentication marking (210,320,410,535) is applied.

    IMAGING PROCESS AND SYSTEM
    9.
    发明公开
    IMAGING PROCESS AND SYSTEM 审中-公开

    公开(公告)号：US20230168238A1

    公开(公告)日：2023-06-01

    申请号：US17919406

    申请日：2021-04-16

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Yau Chuen YIU ,  Koon Chung HUI ,  Yan Yan MOK

    IPC: G01N33/38 ,  G01N23/046 ,  G01N23/20025

    CPC classification number: G01N33/381 ,  G01N23/046 ,  G01N23/20025

    Abstract: A system (300) for providing a three-dimensional computer tomography image of a gemstone, the system (300) comprising an X-ray source (330) for providing an X-ray towards a gemstone (320); an X-ray detector system for detecting X-rays transmitted through or diffracted by the gemstone (320). The X-ray detector system surrounds the gemstone (320) and detects a three-dimensional multi-angle X-ray diffraction pattern from the gemstone (320) upon rotation of the gemstone (320) within the X-ray field, and provides an output signal therefrom, wherein the output signal provides for invasive three-dimension multiangle X-ray diffraction reconstructed computed tomography from the three-dimension multiangle X-ray diffraction pattern.

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