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公开(公告)号：US08896195B2
公开(公告)日：2014-11-25
申请号：US12909745
申请日：2010-10-21
Applicant: Juying Dou
Inventor： Juying Dou
IPC: H01J1/15 , H01J19/08 , H01K1/02 , H01J37/065
CPC classification number: H01J1/15 , H01J37/065 , H01J2237/0216 , H01J2237/061 , H01J2237/06316
Abstract: This invention relates to a filament for electron emission cathode which is employed in an electron microscope, a critical dimension examine tool, an electron beam lithograph machine, an electron beam tester and other electron beam related systems as an electron source. Embodiments of the present invention discloses method with which a Re (Rhenium) is used as heat source such that vibration issue of prior tungsten filament can be depressed.
Abstract translation: 本发明涉及一种用于电子显微镜，临界尺寸检测工具，电子束光刻机，电子束测试仪和其他电子束相关系统作为电子源的电子发射阴极灯丝。 本发明的实施例公开了使用Re（铼）作为热源的方法，使得可以抑制现有钨丝的振动发生。
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公开(公告)号：US08022609B2
公开(公告)日：2011-09-20
申请号：US12145036
申请日：2008-06-24
Applicant: Zhong-Wei Chen , Juying Dou
Inventor： Zhong-Wei Chen , Juying Dou
CPC classification number: H01J37/063 , H01J1/16 , H01J3/027 , H01J37/065 , H01J2237/06316 , H01J2237/06375
Abstract: A thermal field emission cathode which is employed in an electron microscope, a critical dimension examine tool, an electron beam lithograph machine, an electron beam tester and other electron beam related systems as an electron source is disclosed. Embodiments disclose changing coating shape, coating position and shorten emitter length to extend the lifetime of the field emission cathode.
Abstract translation: 公开了一种在电子显微镜中使用的热场发射阴极，临界尺寸检查工具，电子束光刻机，电子束测试仪和其他电子束相关系统作为电子源。 实施例公开了改变涂层形状，涂层位置和缩短发射极长度以延长场致发射阴极的寿命。
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公开(公告)号：US20060097617A1
公开(公告)日：2006-05-11
申请号：US10985114
申请日：2004-11-10
Applicant: Robert Cassidy
Inventor： Robert Cassidy
CPC classification number: H01J61/045 , H01J9/04 , H01J9/266 , H01J61/0672
Abstract: Disclosed are cathode units for use in fluorescent discharge lamps which include a stem element adapted for sealing engagement with an end of an elongated vitreous/glass tube, first and second electrode support wires extending axially through the stem element, and a filament electrode which is oriented substantially axially with respect to the support wires. The support wires each have a inwardly-directed tip portion and the filament electrode is attached thereto. The ends of the filament electrode are attached to the support wires by welding. In alternative embodiments, the disclosed cathode unit can further include an electrode shield assembly.
Abstract translation: 公开了用于荧光放电灯的阴极单元，其包括适于与细长玻璃体/玻璃管的端部密封接合的杆元件，轴向延伸穿过杆元件的第一和第二电极支撑线以及定向的丝线电极 基本上相对于支撑线轴向。 支撑线各自具有向内指向的尖端部分，并且细丝电极附接到其上。 灯丝电极的端部通过焊接附接到支撑线。 在替代实施例中，所公开的阴极单元还可包括电极屏蔽组件。
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公开(公告)号：US5834892A
公开(公告)日：1998-11-10
申请号：US864737
申请日：1997-05-28
Applicant: Yasuyuki Kikuchi , Tatsuya Kurobuchi
Inventor： Yasuyuki Kikuchi , Tatsuya Kurobuchi
Abstract: To obtain a fluorescent display tube which allows the cathode to be driven by a DC current from a battery even when the overall length of the tube becomes large. This object can be achieved by: placing anchors 11A and 11B on both ends of the cathode 10; placing a support on the middle point between the anchors 11A and 11B, to which part of the cathode 10 has been fixed; and adjusting the lengths between the support and the anchors 11A and 11B to be 100 mm or less, and then adding DC power sources 13A and 13B which pass DC currents negative with respect to the support, and positive with respect to the anchors 11A and 11B between the support 12 and the anchors 11A and 11B.
Abstract translation: 为了获得荧光显示管，即使当管的整个长度变大时也允许来自电池的直流电流驱动阴极。 该目的可以通过以下方式实现：将锚固件11A和11B放置在阴极10的两端; 在锚固件11A和11B之间的中间点处放置支撑件，阴极10的一部分已经固定到该中间点; 并且将支撑件和锚固件11A和11B之间的长度调整为100mm以下，然后添加直流电源13A和13B，其通过相对于支撑件为负的直流电流，并且相对于锚件11A和11B为正 在支撑件12和锚固件11A和11B之间。
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公开(公告)号：US4176293A
公开(公告)日：1979-11-27
申请号：US879017
申请日：1978-02-17
Applicant: Robert H. Giebeler
Inventor： Robert H. Giebeler
CPC classification number: H01J1/20
Abstract: An electrically resistive heater consisting of a helix of resistive wire, the helix being shaped into a toroid or a spiral, with the electrical return lead extending coaxially through the helix so as to provide a magnetic field of equal magnitude and opposite sense to that produced by current in the helix to cancel the magnetic fields.
Abstract translation: 由电阻丝螺旋构成的电阻加热器，螺旋形成环形或螺旋状，电气回流引线通过螺旋线同轴地延伸，从而提供与由 螺旋中的电流取消磁场。
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Patent Agency Ranking
公开(公告)号：US3943398A
公开(公告)日：1976-03-09
申请号：US533716
申请日：1974-12-17
Applicant: Pierre Gerlach
Inventor： Pierre Gerlach
CPC classification number: H01J21/02 , H01J19/42 , H01J2893/0002
Abstract: The present invention relates to an electronic tube with cylindrical electrodes. In tubes of this kind, where the cathode generally consisting of a wire mesh 1, the space located within same is tightly coupled with the other inter-electrode spaces of the tube. The invention, in order to avert parasitic resonances at the harmonics closest to the operating frequency, which can occur in said space in operation, provides for the arrangement in said space of a certain number of metal sleeves 8, 9 and 10 coaxial with the electrodes, constituting low-inductance coaxial line sections.Application to high-power, short-wave (20 MHz) triodes for transmitting applications.
Abstract translation: 本发明涉及具有圆柱形电极的电子管。 在这种管中，阴极通常由金属网1组成，位于其内的空间与管的其它电极间空间紧密耦合。 为了避免在操作的所述空间中可能发生的最接近工作频率的谐波的寄生谐振，本发明提供了与电极同轴的一定数量的金属套筒8,9和10的所述空间中的布置 构成低电感同轴线路部分。
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公开(公告)号：US3652893A
公开(公告)日：1972-03-28
申请号：US3652893D
申请日：1970-11-20
Applicant: HYMAN HURVITZ
Inventor： HURVITZ HYMAN
CPC classification number: H01J21/36
Abstract: A non-coplanar miniature vacuum tube triode, having its elements all formed by photo-resist techniques, and all secured to a common substrate, the cathode being formed directly in contact with the substrate over its surface, and the grid and anode being formed as crossovers, one for the cathode and the other for both cathode and grid, in parallel planes, leaving free space between each pair of the electrodes, and inherently providing intertube isolation and high gain per tube.
Abstract translation: 非共面微型真空管三极管，其元件全部由光刻胶技术形成，并且全部固定到公共基板上，阴极直接与基板在其表面上接触形成，栅极和阳极形成为 交叉，一个用于阴极，另一个用于阴极和栅极，在平行的平面中，在每对电极之间留下自由空间，并且固有地提供管间隔离和每管的高增益。
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公开(公告)号：US3560791A
公开(公告)日：1971-02-02
申请号：US3560791D
申请日：1968-09-06
Applicant: SIEMENS AG
Inventor： BERTELSMANN WILHELM
CPC classification number: H01J1/18
Abstract: A mesh cathode comprising a tubular mesh grid formed of electron-emitting wires; the tubular grid having one end portion thereof fastened to an annular heating current supply terminal and having the other end portion thereof attached to a cap which is supported on a rod disposed coaxially of the tubular grid. The rod and the cap cooperate to form a second heating current supply terminal. The cap comprises a plurality of laminar members each having a plurality of arms extending radially outwardly from a centrally disposed hub having an aperture therethrough for fittingly engaging the supporting rod. The laminar members are arranged with the arms in a staggered pattern relative to each other.
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公开(公告)号：US3473073A
公开(公告)日：1969-10-14
申请号：US3473073D
申请日：1967-04-17
Applicant: THOMSON HOUSTON COMP FRANCAISE
Inventor： GERLACH PIERRE
CPC classification number: H01J1/18
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公开(公告)号：US2269081A
公开(公告)日：1942-01-06
申请号：US32660240
申请日：1940-03-29
Applicant: LORENS AG C
Inventor： ARTUR FELSNER
CPC classification number: B01D29/46 , B01D25/34 , F03B13/08 , H01J9/04 , Y02E10/22 , Y02P70/525 , Y10T29/49881 , Y10T29/49986
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