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公开(公告)号：US10357848B2
公开(公告)日：2019-07-23
申请号：US14599612
申请日：2015-01-19
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Hongqiang Chen , Steven Robert Hayashi , Xi Zhang
Abstract: A laser machining method includes directing, from an F-theta lens having a long focal length of greater than about 250 millimeters, a laser beam at a non-perpendicular beam tilt angle from an optical axis of the lens having a top-hat profile and a narrow beam divergence angle of between about 1 degree and about 3 degrees towards a workpiece on a stage movable in at least an X-direction and a Y-direction, engaging the directed laser beam with the workpiece disposed in the usable field of view, moving the workpiece and the directed laser beam relative to each other, and removing portions of the workpiece with the directed laser beam to define a machined surface.
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公开(公告)号：US11420288B2
公开(公告)日：2022-08-23
申请号：US16426414
申请日：2019-05-30
Applicant: General Electric Company
Inventor： Hongqiang Chen , Steven Robert Hayashi , Xi Zhang
IPC: B23K26/36 , B23K26/38 , B23K26/064 , B23K26/06 , B23K26/04 , B23K26/08 , B23K26/40 , B23K103/00
Abstract: A laser machining method includes directing, from an F-theta lens having a long focal length of greater than about 250 millimeters, a laser beam at a non-perpendicular beam tilt angle from an optical axis of the lens having a top-hat profile and a narrow beam divergence angle of between about 1 degree and about 3 degrees towards a workpiece on a stage movable in at least an X-direction and a Y-direction, engaging the directed laser beam with the workpiece disposed in the usable field of view, moving the workpiece and the directed laser beam relative to each other, and removing portions of the workpiece with the directed laser beam to define a machined surface.
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公开(公告)号：US10373792B2
公开(公告)日：2019-08-06
申请号：US15195654
申请日：2016-06-28
Applicant: General Electric Company
Inventor： John Scott Price , Xi Zhang
Abstract: A cathode assembly design is provided that includes two flat emitters, a longer emitter filament and a shorter emitter filament. In one implementation the focal spot sizes produced by the long and short emitters overlap over a range. Thus, one emitter filament may be suitable for generating small and concentrated focal spot sizes while the other emitter filament is suitable for generating small and large focal spots sizes.
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公开(公告)号：US20170372863A1
公开(公告)日：2017-12-28
申请号：US15195654
申请日：2016-06-28
Applicant: General Electric Company
Inventor： John Scott Price , Xi Zhang
Abstract: A cathode assembly design is provided that includes two flat emitters, a longer emitter filament and a shorter emitter filament. In one implementation the focal spot sizes produced by the long and short emitters overlap over a range. Thus, one emitter filament may be suitable for generating small and concentrated focal spot sizes while the other emitter filament is suitable for generating small and large focal spots sizes.
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公开(公告)号：US09443691B2
公开(公告)日：2016-09-13
申请号：US14144187
申请日：2013-12-30
Applicant: General Electric Company
Inventor： Vance Scott Robinson , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Sergiy Zalyubovskiy , Xi Zhang
IPC: H01J35/06 , H01J29/48 , H01J29/04 , H01L23/367 , H01L23/373 , H01J3/26 , H01J29/00 , H01L33/44 , H01L33/64 , H01L23/31 , H01J1/14 , H01J1/15
CPC classification number: H01J29/484 , H01J1/14 , H01J1/15 , H01J3/26 , H01J29/006 , H01J29/04 , H01J29/485 , H01J35/06 , H01L23/3178 , H01L23/367 , H01L23/373 , H01L23/3736 , H01L23/3738 , H01L33/44 , H01L33/641 , H01L33/642 , H01L2924/0002 , Y10T428/24612 , Y10T428/24802 , Y10T428/24826 , Y10T428/24942 , Y10T428/2495 , H01L2924/00
Abstract: Embodiments of the disclosure relate to electron emitters for use in conjunction with X-ray emitting devices. In certain embodiments the emitter includes features that prevent, limit, or control deflection of the electron emitter at operating temperatures. In this manner, the electron emitter may be kept substantially flat or at a desired curvature during operation.
Abstract translation: 本公开的实施例涉及与X射线发射装置结合使用的电子发射器。 在某些实施例中，发射器包括防止，限制或控制电子发射器在工作温度下的偏转的特征。 以这种方式，电子发射器可以在操作期间保持基本上平坦或处于期望的曲率。
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Patent Agency Ranking
公开(公告)号：US20190275609A1
公开(公告)日：2019-09-12
申请号：US16426414
申请日：2019-05-30
Applicant: General Electric Company
Inventor： Hongqiang Chen , Steven Robert Hayashi , Xi Zhang
Abstract: A laser machining method includes directing, from an F-theta lens having a long focal length of greater than about 250 millimeters, a laser beam at a non-perpendicular beam tilt angle from an optical axis of the lens having a top-hat profile and a narrow beam divergence angle of between about 1 degree and about 3 degrees towards a workpiece on a stage movable in at least an X-direction and a Y-direction, engaging the directed laser beam with the workpiece disposed in the usable field of view, moving the workpiece and the directed laser beam relative to each other, and removing portions of the workpiece with the directed laser beam to define a machined surface.
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公开(公告)号：US09711320B2
公开(公告)日：2017-07-18
申请号：US14264075
申请日：2014-04-29
Applicant: General Electric Company
Inventor： Yun Zou , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Xi Zhang
IPC: H01J35/06
CPC classification number: H01J35/06 , H01J35/065
Abstract: An emitter device having an emission surface includes a plurality of ligaments configured to emit electrons in response to an applied electric field resulting from an applied electrical voltage. Further, the emitter device includes a plurality of slots configured to provide physical separation between two or more adjacently disposed ligaments of the plurality of ligaments, where one or more slots of the plurality of slots define an electrical path. Moreover, the emitter device includes a low work function layer disposed on at least a portion of a ligament of the plurality of ligaments.
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公开(公告)号：US09646801B2
公开(公告)日：2017-05-09
申请号：US14682890
申请日：2015-04-09
Applicant: General Electric Company
Inventor： George Theodore Dalakos , Mark Alan Frontera , Vance Scott Robinson , William Robert Ross , Xi Zhang
CPC classification number: H01J35/12 , H01J2235/088 , H01J2235/1204 , H01J2235/1233 , H01J2235/1291
Abstract: In various embodiments, a multi-layer X-ray source target is provided having two or more layers of target material at different depths and different thicknesses. In one such embodiment the X-ray generating layers increase in thickness in relationship to their depth relative to the electron beam facing surface of the source target, such that X-ray generating layer further from this surface are thick than X-ray generating layers closer to the electron beam facing surface.
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公开(公告)号：US20150187534A1
公开(公告)日：2015-07-02
申请号：US14144187
申请日：2013-12-30
Applicant: General Electric Company
Inventor： Vance Scott Robinson , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Sergiy Zalyubovskiy , Xi Zhang
CPC classification number: H01J29/484 , H01J1/14 , H01J1/15 , H01J3/26 , H01J29/006 , H01J29/04 , H01J29/485 , H01J35/06 , H01L23/3178 , H01L23/367 , H01L23/373 , H01L23/3736 , H01L23/3738 , H01L33/44 , H01L33/641 , H01L33/642 , H01L2924/0002 , Y10T428/24612 , Y10T428/24802 , Y10T428/24826 , Y10T428/24942 , Y10T428/2495 , H01L2924/00
Abstract: Embodiments of the disclosure relate to electron emitters for use in conjunction with X-ray emitting devices. In certain embodiments the emitter includes features that prevent, limit, or control deflection of the electron emitter at operating temperatures. In this manner, the electron emitter may be kept substantially flat or at a desired curvature during operation.
Abstract translation: 本公开的实施例涉及与X射线发射装置结合使用的电子发射器。 在某些实施例中，发射器包括防止，限制或控制电子发射器在工作温度下的偏转的特征。 以这种方式，电子发射器可以在操作期间保持基本上平坦或处于期望的曲率。
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公开(公告)号：US09953797B2
公开(公告)日：2018-04-24
申请号：US14867396
申请日：2015-09-28
Applicant: General Electric Company
Inventor： Xi Zhang , Mark Alan Frontera , Sergio Lemaitre , John Scott Price , Uwe Wiedmann
Abstract: A flat emitter configured for use in an X-ray tube is presented. The X-ray tube includes a first conductive section including a first terminal. Further, the X-ray tube includes a second conductive section including a second terminal. Also, the X-ray tube includes a third conductive section disposed between the first conductive section and the second conductive section, wherein the third conductive section is configured to emit electrons toward a determined focal spot, and wherein the third conductive section includes a plurality of slits subdividing the third conductive section into a winding track coupled to the first conductive section and the second conductive section, wherein at least two of the plurality of slits are interwound spirally to compose the winding track, and wherein the winding track is configured to expand and contract based on heat provided to the third conductive section.
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