公开(公告)号：US08035295B2

公开(公告)日：2011-10-11

申请号：US11721970

申请日：2005-12-12

Applicant: Pierre Legagneux ,  Laurent Gangloff ,  Eric Minoux ,  Jean-Philippe Schnell ,  Frederic Andre ,  Dominique Dieumegard

Inventor： Pierre Legagneux ,  Laurent Gangloff ,  Eric Minoux ,  Jean-Philippe Schnell ,  Frederic Andre ,  Dominique Dieumegard

IPC: H01J1/62 ,  H01J40/16 ,  H01J40/00

CPC classification number: H01J1/304 ,  B82Y10/00 ,  H01J1/34 ,  H01J23/04 ,  H01J2201/304 ,  H01J2201/30469 ,  H01J2223/04

Abstract: The invention relates to an optically-controlled field-emission cathode, comprising a substrate (10, 20, 30, 40, 50, 60, 70, 80, 90, 100) having at least one conducting surface (11, 21, 31, 41, 51, 61, 71, 81, 91, 101) and at least one conducting emitter element (16, 26, 36, 46, 56, 66, 76, 86, 96, 106) in the vicinity of a conducting surface, characterized in that it also comprises at least one photoconducting element (13, 23, 33, 43, 53, 63, 73, 83, 93, 103) electrically connected in series between at least one emitter element and a conducting surface of the substrate. Another subject of the invention is an amplifier tube comprising such a cathode. The application is for Vacuum tubes, in particular for microwave amplification, with a view for example to applications in telecommunications.

Abstract translation: 本发明涉及一种光学控制的场致发射阴极，其包括具有至少一个导电表面（11,21,31和31）的基底（10,20,30,40,50,60,70,80,90,100） 41，51，61，71，81，91，101）和在导电表面附近的至少一个导电发射极元件（16,26,36,46,56,66,76,86,96,106） 其特征在于，它还包括至少一个光电导元件（13,23,33,43,53,63,73,83,93,103），其电连接在至少一个发射极元件和基板的导电表面之间。 本发明的另一主题是包括这种阴极的放大器管。 该应用是用于真空管，特别是用于微波放大的，例如用于电信领域的应用。

公开(公告)号：US20090134766A1

公开(公告)日：2009-05-28

申请号：US12184147

申请日：2008-07-31

Applicant: Beom-Kwon Kim ,  Young-Chul Choi

Inventor： Beom-Kwon Kim ,  Young-Chul Choi

IPC: H01J1/02

CPC classification number: H01J31/127 ,  H01J1/304 ,  H01J29/04 ,  H01J2201/304 ,  H01J2201/30403 ,  H01J2201/30469 ,  H01J2329/0407 ,  H01J2329/041 ,  H01J2329/0455

Abstract: An electron emission source electrically coupled to a cathode, the electron emission source including: an insulating material at or near the center of the electron emission source; and an electron emission material around the insulating material.

Abstract translation: 电子发射源电耦合到阴极，所述电子发射源包括：在所述电子发射源的中心处或附近的绝缘材料; 以及围绕绝缘材料的电子发射材料。

公开(公告)号：US07365481B2

公开(公告)日：2008-04-29

申请号：US10316374

申请日：2002-12-10

Applicant: Toru Kawase ,  Keisuke Koga

Inventor： Toru Kawase ,  Keisuke Koga

IPC: H01J1/62 ,  H01J63/04

CPC classification number: H01J1/30 ,  H01J2201/304

Abstract: A field emission device having cold cathode devices including an emitter and a lead electrode, and the field emission device is provided with the plural kinds of cold cathode device groups classified based on the emission property of the cold cathode device. This field emission device has a member for allowing the cold cathode device group to perform emission by successively changing the cold cathode device group that mainly performs emission based on the difference in the emission property. Thus, it is possible to maintain the emission current at a predetermined necessary value or more and to realize the long lifetime of the field emission device.

Abstract translation: 具有包括发射极和引线电极的冷阴极器件的场致发射器件，场发射器件具有基于冷阴极器件的发射特性分类的多种冷阴极器件组。 该场致发射装置具有使冷阴极器件组通过依照发光特性的差异依次变更主要进行发光的冷阴极器件组来进行发光的部件。 因此，可以将发射电流保持在预定的必要值以上，并且实现场发射装置的长寿命。

公开(公告)号：US07118982B2

公开(公告)日：2006-10-10

申请号：US10935795

申请日：2004-09-07

Applicant: Alexander Govyadinov ,  Michael J. Regan

Inventor： Alexander Govyadinov ,  Michael J. Regan

IPC: H01L21/331

CPC classification number: B82Y10/00 ,  H01J1/312 ,  H01J29/467 ,  H01J2201/304 ,  H01J2201/3125

Abstract: An emitter includes an electron source and a cathode. The cathode has an emissive surface. The emitter further includes a continuous anisotropic conductivity layer disposed between the electron source and the emissive surface of the cathode. The anisotropic conductivity layer has an anisotropic sheet resistivity profile and provides for substantially uniform emissions over the emissive surface of the emitter.

公开(公告)号：US06835947B2

公开(公告)日：2004-12-28

申请号：US10066158

申请日：2002-01-31

Applicant: Alexander Govyadinov ,  Michael J. Regan

Inventor： Alexander Govyadinov ,  Michael J. Regan

IPC: H01L2906

CPC classification number: B82Y10/00 ,  H01J1/312 ,  H01J29/467 ,  H01J2201/304 ,  H01J2201/3125

Abstract: An emitter includes an electron source and a cathode. The cathode has an emissive surface. The emitter further includes a continuous anisotropic conductivity layer disposed between the electron source and the emissive surface of the cathode. The anisotropic conductivity layer has an anisotropic sheet resistivity profile and provides for substantially uniform emissions over the emissive surface of the emitter.

Abstract translation: 发射体包括电子源和阴极。 阴极具有发射表面。 发射极还包括设置在电子源和阴极的发射表面之间的连续各向异性导电层。 各向异性导电层具有各向异性的电阻率分布，并且在发射体的发射表面上提供基本均匀的发射。

公开(公告)号：US06799075B1

公开(公告)日：2004-09-28

申请号：US08701764

申请日：1996-08-22

Applicant: Victor I. Chornenky ,  Michael R. Forman

Inventor： Victor I. Chornenky ,  Michael R. Forman

IPC: A61B1818

CPC classification number: A61N5/1001 ,  A61N5/1002 ,  A61N2005/1003 ,  H01J35/32 ,  H01J2201/304 ,  H01J2201/306

Abstract: A catheter for emitting radiation is disclosed, comprising a catheter shaft and an x-ray unit attached to the distal end of the catheter shaft. The x-ray unit comprises an anode and a cathode coupled to an insulator to define a vacuum chamber. The cathode is preferably a field emission cathode of graphite or graphite coated with titanium carbide, for example. The anode is preferably tungsten and the insulator is preferably pyrolytic boron nitride. The x-ray unit is preferably coupled to a voltage source through a coaxial cable. The anode is preferably a heavy metal such as tungsten. The cathode may also be a ferroelectric material. The x-ray unit can have a diameter less than about 4 mm and a length less than about 15 mm. Methods of use of the catheter are also disclosed. The catheter of the present invention can be used to irradiate the site of an angioplasty procedure to prevent restenosis. It can also be used to treat other conditions in any vessel, lumen or cavity of the body.

Abstract translation: 公开了一种用于发射辐射的导管，包括导管轴和附接到导管轴的远端的x射线单元。 x射线单元包括阳极和阴极，其耦合到绝缘体以限定真空室。 阴极优选为例如涂覆有碳化钛的石墨或石墨的场致发射阴极。 阳极优选为钨，绝缘体优选为热解氮化硼。 X射线单元优选地通过同轴电缆耦合到电压源。 阳极优选为重金属，例如钨。 阴极也可以是铁电材料。 x射线单元的直径可以小于约4毫米，长度小于约15毫米。 还公开了导管的使用方法。 本发明的导管可用于照射血管成形术程序的部位以防止再狭窄。 它也可以用于治疗身体的任何血管，腔或腔中的其他病症。

公开(公告)号：US06658088B2

公开(公告)日：2003-12-02

申请号：US09792072

申请日：2001-02-26

Applicant: Jonas Tiren

Inventor： Jonas Tiren

IPC: H01J3500

CPC classification number: A61N5/1001 ,  H01J35/32 ,  H01J2201/304 ,  H01J2235/164

Abstract: A miniature X-ray source includes a support structure provided with a through hole, an anode arranged at one end of the hole and a cathode at the other end of the hole, thereby defining a cavity, wherein the anode and cathode are adapted to be energized to generate X-ray radiation. The support structure has a cross-sectional shape that is determined such that a desired radiation distribution of the radiation generated by the X-ray source is achieved. Also a method of manufacturing miniature X-ray sources is disclosed.

Abstract translation: 微型X射线源包括设置有通孔的支撑结构，布置在孔的一端的阳极和在孔的另一端的阴极，从而限定空腔，其中阳极和阴极适于 通电以产生X射线辐射。 支撑结构具有被确定为使得由X射线源产生的辐射的期望的辐射分布被实现的横截面形状。 还公开了一种制造微型X射线源的方法。

公开(公告)号：US20030141494A1

公开(公告)日：2003-07-31

申请号：US10066158

申请日：2002-01-31

Inventor： Alexander Govyadinov ,  Michael J. Regan

IPC: H01L029/06

CPC classification number: B82Y10/00 ,  H01J1/312 ,  H01J29/467 ,  H01J2201/304 ,  H01J2201/3125

Abstract: An emitter includes an electron source and a cathode. The cathode has an emissive surface. The emitter further includes a continuous anisotropic conductivity layer disposed between the electron source and the emissive surface of the cathode. The anisotropic conductivity layer has an anisotropic sheet resistivity profile and provides for substantially uniform emissions over the emissive surface of the emitter.

Abstract translation: 发射体包括电子源和阴极。 阴极具有发射表面。 发射极还包括设置在电子源和阴极的发射表面之间的连续各向异性导电层。 各向异性导电层具有各向异性的电阻率分布，并且在发射体的发射表面上提供基本均匀的发射。

公开(公告)号：US06573643B1

公开(公告)日：2003-06-03

申请号：US09677361

申请日：2000-10-02

Applicant: Nalin Kumar ,  Chenggang Xie

Inventor： Nalin Kumar ,  Chenggang Xie

IPC: H01J130

CPC classification number: H01J1/3042 ,  H01J1/304 ,  H01J1/316 ,  H01J9/027 ,  H01J31/127 ,  H01J61/0677 ,  H01J63/06 ,  H01J2201/304 ,  H01J2201/30426 ,  H01J2201/30457 ,  H01J2201/3165

Abstract: A field emission cathode for use in flat panel displays is described including a layer of conductive material and a layer of amorphic diamond film, functioning as a low effective work-function material, deposited over the conductive material to form emission sites. The emission sites each contain at least two sub-regions having differing electron affinities. Use of the cathode to form a computer screen is also described along with the use of the cathode to form a fluorescent light source.

Abstract translation: 描述了用于平板显示器的场发射阴极，其包括沉积在导电材料上以形成发射位点的导电材料层和用作低有效功函数材料的非晶金刚石膜层。 发射部位各自含有至少两个具有不同电子亲和力的亚区域。 还描述了使用阴极形成计算机屏幕，同时使用阴极来形成荧光光源。

公开(公告)号：US20020146090A1

公开(公告)日：2002-10-10

申请号：US10010911

申请日：2001-11-20

Inventor： Victor I. Chornenky ,  Michael R. Forman

IPC: A61N005/10 ,  A61B018/04

CPC classification number: A61N5/1001 ,  A61N5/1002 ,  A61N2005/1003 ,  H01J35/32 ,  H01J2201/304 ,  H01J2201/306

Abstract: Generally, the present invention provides a device for insertion into a body of a subject being treated to deliver localized x-ray radiation, and a method for fabricating such a device. The device includes a cathode structure that has a thin, diamond film as a cathode. The device further comprises a vacuum housing and an anode. A method for fabricating a device for localized x-ray radiation is described which includes the formation of a thin diamond film on a getter at temperatures below an activation temperature of the getter.

Abstract translation: 通常，本发明提供一种用于插入被处理以递送局部x射线辐射的对象的身体的装置，以及用于制造这种装置的方法。 该器件包括具有薄的金刚石膜作为阴极的阴极结构。 该装置还包括真空壳体和阳极。 描述了一种用于制造用于局部x射线辐射的装置的方法，其包括在低于吸气剂的活化温度的温度下在吸气剂上形成薄金刚石膜。