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    ADJUSTABLE BEAM CHARACTERISTICS
    1.
    发明申请
    ADJUSTABLE BEAM CHARACTERISTICS 审中-公开

    公开(公告)号：US20200333640A1

    公开(公告)日：2020-10-22

    申请号：US16921531

    申请日：2020-07-06

    Applicant: nLIGHT, Inc.

    Inventor： Dahv A.V. Kliner ,  Roger Farrow

    IPC: G02F1/01 ,  B23K26/067 ,  B23K26/38 ,  G02B6/14 ,  B23K26/21 ,  B22F3/105 ,  B22F3/11 ,  B22F3/24 ,  B23K26/03 ,  G02B6/02 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/342 ,  B29C48/08 ,  G02B6/036 ,  G02B6/42 ,  B23K26/064 ,  B23K26/073 ,  G02B6/255 ,  G02B27/09

    Abstract: Disclosed herein are methods, apparatus, and systems for providing an optical beam delivery system, comprising an optical fiber including a first length of fiber comprising a first RIP formed to enable, at least in part, modification of one or more beam characteristics of an optical beam by a perturbation assembly arranged to modify the one or more beam characteristics, the perturbation assembly coupled to the first length of fiber or integral with the first length of fiber, or a combination thereof and a second length of fiber coupled to the first length of fiber and having a second RIP formed to preserve at least a portion of the one or more beam characteristics of the optical beam modified by the perturbation assembly within one or more first confinement regions. The optical beam delivery system may include an optical system coupled to the second length of fiber including one or more free-space optics configured to receive and transmit an optical beam comprising the modified one or more beam characteristics.

    Method of forming pores in three-dimensional objects
    3.
    发明授权
    Method of forming pores in three-dimensional objects 有权

    公开(公告)号：US10661391B2

    公开(公告)日：2020-05-26

    申请号：US15882292

    申请日：2018-01-29

    Applicant: nLIGHT, Inc.

    Inventor： Aaron Brown ,  Brian Victor ,  Robert Martinsen ,  Dahv A. V. Kliner ,  Roger Farrow

    IPC: B23K26/34 ,  B23K26/342 ,  H01S3/105 ,  H01S3/23 ,  B22F3/105 ,  B22F3/24 ,  B33Y10/00 ,  B23K26/082 ,  B23K26/046 ,  B23K26/06 ,  B23K26/073 ,  H01S3/067 ,  B23K26/144 ,  G02B6/255 ,  B22F3/11 ,  H01S3/00 ,  G02B6/26 ,  B33Y80/00 ,  H01S3/16 ,  B23K103/00 ,  G02B6/02 ,  H01S3/106

    Abstract: A method of making a porous three-dimensional object. The method comprises: a) positioning a first layer of particles on a build plate; b) heating the first layer of particles sufficiently to fuse the particles together to form a first build layer having a first porosity; c) exposing the first build layer to a laser beam to form one or more pores, the exposed first build layer having a first modified porosity, the laser beam being emitted from an optical fiber; d) adjusting one or more beam characteristics of the laser beam prior to or during the exposing of the first build layer, the adjusting of the laser beam occurring prior to the laser beam being emitted from the optical fiber; e) positioning an additional layer of particles on the exposed first build layer; f) heating the additional layer of particles sufficiently to fuse the particles together to form a second build layer having a second porosity; g) exposing the second build layer to the laser beam to form one or more pores, the exposed second build layer having a second modified porosity, the laser beam being emitted from the optical fiber; h) adjusting one or more beam characteristics of the laser beam after fusing the particles to form the second build layer and prior to or during the exposing of the second build layer, the adjusting of the laser beam occurring prior to the laser beam being emitted from the optical fiber, and i) repeating e), f), optionally g) and optionally h) to form a three-dimensional object.

    METHOD OF FORMING PORES IN THREE-DIMENSIONAL OBJECTS
    5.
    发明申请
    METHOD OF FORMING PORES IN THREE-DIMENSIONAL OBJECTS 审中-公开

    公开(公告)号：US20180161935A1

    公开(公告)日：2018-06-14

    申请号：US15882292

    申请日：2018-01-29

    Applicant: nLIGHT, Inc.

    Inventor： Aaron Brown ,  Brian Victor ,  Robert Martinsen ,  Dahv A.V. Kliner ,  Roger Farrow

    IPC: B23K26/342 ,  H01S3/067 ,  H01S3/105 ,  H01S3/23 ,  B22F3/105 ,  B22F3/24 ,  B33Y10/00 ,  B33Y80/00 ,  B23K26/082 ,  B23K26/046 ,  B23K26/06 ,  B23K26/073

    Abstract: A method of making a porous three-dimensional object. The method comprises: a) positioning a first layer of particles on a build plate; b) heating the first layer of particles sufficiently to fuse the particles together to form a first build layer having a first porosity; c) exposing the first build layer to a laser beam to form one or more pores, the exposed first build layer having a first modified porosity, the laser beam being emitted from an optical fiber; d) adjusting one or more beam characteristics of the laser beam prior to or during the exposing of the first build layer, the adjusting of the laser beam occurring prior to the laser beam being emitted from the optical fiber; e) positioning an additional layer of particles on the exposed first build layer; f) heating the additional layer of particles sufficiently to fuse the particles together to form a second build layer having a second porosity; g) exposing the second build layer to the laser beam to form one or more pores, the exposed second build layer having a second modified porosity, the laser beam being emitted from the optical fiber; h) adjusting one or more beam characteristics of the laser beam after fusing the particles to form the second build layer and prior to or during the exposing of the second build layer, the adjusting of the laser beam occurring prior to the laser beam being emitted from the optical fiber, and i) repeating e), f), optionally g) and optionally h) to form a three-dimensional object.

    Methods of and systems for materials processing using optical beams
    6.
    发明授权
    Methods of and systems for materials processing using optical beams 有权

    公开(公告)号：US10739621B2

    公开(公告)日：2020-08-11

    申请号：US15938790

    申请日：2018-03-28

    Applicant: nLIGHT, Inc.

    Inventor： Brian Victor ,  Christopher A. Rivera ,  Dahv A.V. Kliner ,  Roger Farrow

    IPC: G02F1/01 ,  G02B27/09 ,  B23K26/064 ,  G02B6/14 ,  G02B6/12 ,  G02B6/036 ,  G02B6/42 ,  G02B6/26 ,  G02B6/028

    Abstract: A method of materials processing using an optical beam includes: launching the optical beam into a first length of fiber having a first refractive-index profile (RIP); coupling the optical beam from the first length of fiber into a second length of fiber having a second RIP; modifying one or more beam characteristics of the optical beam in the first length of fiber, in the second length of fiber, or in the first and second lengths of fiber; and/or generating an output beam, having the modified one or more beam characteristics of the optical beam, from the second length of fiber. The first RIP can be the same as or differ from the second RIP. The modifying of the one or more beam characteristics can include changing the one or more beam characteristics from a first state to a second state. The first state can differ from the second state.

    Method of forming three-dimensional objects
    7.
    发明授权
    Method of forming three-dimensional objects 审中-公开

    公开(公告)号：US10668535B2

    公开(公告)日：2020-06-02

    申请号：US15882870

    申请日：2018-01-29

    Applicant: nLIGHT, Inc.

    Inventor： Aaron Brown ,  Keith Kennedy ,  David Dawson ,  Robert Martinsen ,  Roger Farrow ,  Dahv A. V. Kliner

    IPC: B22F3/10 ,  B22F3/105 ,  G03F7/00 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y30/00 ,  B29C64/153

    Abstract: A method of making a three-dimensional object. The method comprises: a) positioning a layer of particles over a build plate; b) exposing the layer of particles to a first laser beam having a first set of beam characteristics, thereby heating the layer sufficiently to fuse at least a portion of the particles together to form a build layer; c) exposing a first region of one of i) the layer of particles or ii) the build layer to a second laser beam having a second set of beam characteristics to provide a first temperature profile for the first region; and d) exposing a second region of one of i) the layer of particles or ii) the build layer to a third laser beam having a third set of beam characteristics to provide a second temperature profile for the second region, the second temperature profile being different than the first temperature profile, wherein both the first region and the second region are in the layer of particles or both the first region and the second region are in the build layer.

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