公开(公告)号：US06191528B1

公开(公告)日：2001-02-20

申请号：US09216969

申请日：1998-12-21

Applicant: Norio Iwamura ,  Sachio Koizumi

Inventor： Norio Iwamura ,  Sachio Koizumi

IPC: H01J2910

CPC classification number: H01J1/22 ,  H01J2201/2867

Abstract: A cathode ray tube includes a phosphor screen and an electron gun. The electron gun includes an indirectly heated cathode structure and plural grid electrodes in axially spaced relationship. The cathode structure includes a cap-shaped base metal having an electron emissive material coating and a heater for heating the cap-shaped base metal. The heater includes a major heating portion having a spirally wound heating wire and leg portions, and each of the leg portions includes a first multilayer winding portion having heating wires wound spirally in plural layers and a second multilayer winding portion intermediate between the major heating portion and the first multilayer winding portion and having heating wires wound in plural layers. The major heating portion and at least a portion of the second multilayer winding portion are covered with an insulating coating, the heater is welded to electrical conductors for applying a voltage thereto at the first multilayer winding portion, and a number of turns per unit length in the first multilayer winding portion is smaller than that in the second multilayer winding portion.

Abstract translation: 阴极射线管包括荧光屏和电子枪。 电子枪包括间接加热的阴极结构和沿轴向间隔开的多个栅电极。 阴极结构包括具有电子发射材料涂层的帽状贱金属和用于加热帽形贱金属的加热器。 加热器包括具有螺旋卷绕的加热丝和腿部的主要加热部分，并且每个腿部包括具有螺旋缠绕的多个加热丝的第一多层缠绕部分和在主加热部分和第二加热部分之间的第二多层缠绕部分 第一多层绕组部分并且具有缠绕在多层中的加热丝。 主要加热部分和第二多层缠绕部分的至少一部分被绝缘涂层覆盖，加热器焊接到用于在第一多层缠绕部分处施加电压的电导体，并且每单位长度的匝数 第一多层绕组部分比第二多层卷绕部分小。

公开(公告)号：US20070090744A1

公开(公告)日：2007-04-26

申请号：US11583747

申请日：2006-10-19

Applicant: Masaru Kuribayashi ,  Masahiro Nonoguchi ,  Naohisa Osaka ,  Yoji Kobayashi

Inventor： Masaru Kuribayashi ,  Masahiro Nonoguchi ,  Naohisa Osaka ,  Yoji Kobayashi

IPC: H01J1/15 ,  H01J19/08 ,  H01K1/02

CPC classification number: H01J1/16 ,  H01J35/06 ,  H01J2201/2867

Abstract: A filament for an X-ray tube has a varied wire diameter but has a constant coil outside diameter to obtain a good uniformity of the longitudinal temperature distribution of the filament. The filament has a wire diameter d which is gradually reduced from the longitudinal central region to the longitudinal ends while the coil outside diameter D is fixed along the longitudinal direction. The wire is polished at only the inside of the coil to reduce the wire diameter. In order to make the longitudinal temperature distribution uniform as far as possible, the difference Δd between the wire diameter dmax at the longitudinal central region and the wire diameter dmin at the longitudinal ends should satisfy the following limitation: Δd/dmax=0.041 to 0.145.

Abstract translation: 用于X射线管的灯丝具有变化的线径，但具有恒定的线圈外径以获得长丝的纵向温度分布的良好均匀性。 灯丝具有从纵向中心区域到纵向端部逐渐减小的线径d，而线圈外径D沿着纵向方向固定。 线材只在线圈内部抛光，以减少线径。 为了使纵向温度分布尽可能均匀，在纵向中心区域的线径d max max之间的差值Deltad与线径d < 纵向端应满足以下限制：<？in-line-formula description =“In-line formula”end =“lead”？> Deltad / d = 0.041 to 0.145。 <？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US20010001531A1

公开(公告)日：2001-05-24

申请号：US09756297

申请日：2001-01-09

Inventor： Norio Iwamura ,  Sachio Koizumi

IPC: H01J029/46

CPC classification number: H01J1/22 ,  H01J2201/2867

Abstract: A cathode ray tube includes a phosphor screen and an electron gun. The electron gun includes an indirectly heated cathode structure and plural grid electrodes arranged in axially spaced relationship. The cathode structure includes a base metal having an electron emissive material coating and a heater for heating the base metal. The heater includes a major heating portion having a spirally wound heating wire and a pair of leg portions connected to opposite ends of the major heating portion. The major heating portion and an inner portion of each of the leg portions on a major-heating-portion side thereof are covered with an insulating coating, and the heater is welded to electrical conductors for applying a voltage thereto at an outer portion of each of the leg portions, the outer portion not being covered with the insulating coating. The outer portion of each of the leg portions includes a first multilayer winding portion having heating wires wound spirally in plural layers, and the inner portion of each of the leg portions includes a second multilayer winding portion having heating wires wound spirally in plural layers. The number of turns per unit length in the first multilayer winding portion is smaller than that in the second multilayer winding portion.

Abstract translation: 阴极射线管包括荧光屏和电子枪。 电子枪包括间接加热的阴极结构和沿轴向间隔布置的多个栅格电极。 阴极结构包括具有电子发射材料涂层的基底金属和用于加热母材的加热器。 加热器包括具有螺旋卷绕的加热丝的主加热部分和连接到主加热部分的相对端的一对腿部。 主加热部分和其主要加热部分侧上的每个腿部的内部部分被绝缘涂层覆盖，并且加热器被焊接到电导体以在每个的外部施加电压 腿部，外部不被绝缘涂层覆盖。 每个腿部的外部包括具有多个螺旋缠绕的加热丝的第一多层缠绕部分，并且每个腿部的内部包括具有螺旋缠绕的多个加热线的第二多层缠绕部分。 第一多层绕组部中的每单位长度的匝数小于第二多层卷绕部的匝数。

公开(公告)号：US6091187A

公开(公告)日：2000-07-18

申请号：US57079

申请日：1998-04-08

Applicant: Steven D. Golladay ,  Rodney A. Kendall ,  Carl E. Bohnenkamp

Inventor： Steven D. Golladay ,  Rodney A. Kendall ,  Carl E. Bohnenkamp

IPC: H01J37/06 ,  H01J1/20 ,  H01J9/04 ,  H01J37/075 ,  H01J1/02

CPC classification number: H01J1/20 ,  H01J9/042 ,  H01J2201/2867

Abstract: Direct and indirect electron bombardment provide a sufficiently high degree of temperature uniformity across the emitting surface of a large-area electron source for an electron beam projection system such that a broad beam having illumination uniformity within 1% can be achieved. A diode gun is used to obtain extraction field uniformity and maintain uniformity of illumination. Power requirements and power dissipation in beam periphery truncating apertures is reduced by roughening the surface of a monocrystalline cathode or depositing materials having a higher work function thereon.

Abstract translation: 直接和间接电子轰击在用于电子束投影系统的大面积电子源的发射表面上提供足够高的温度均匀度，使得可以实现具有在1％内的照明均匀性的宽光束。 二极管枪用于获得提取场均匀性并保持照明的均匀性。 通过使单晶阴极的表面粗糙化或在其上具有较高功函的沉积材料来减小光束外围截头孔中的功率需求和功率消耗。

公开(公告)号：US20100239828A1

公开(公告)日：2010-09-23

申请号：US12407457

申请日：2009-03-19

Applicant: Sterling W. Cornaby ,  Erik C. Bard

Inventor： Sterling W. Cornaby ,  Erik C. Bard

IPC: B32B3/10

CPC classification number: H01K1/14 ,  H01J1/16 ,  H01J1/18 ,  H01J35/06 ,  H01J2201/2853 ,  H01J2201/2867 ,  Y10T428/24802

Abstract: A planar filament comprising two bonding pads and a non-linear filament connected between the two bonding pads. The filament may be wider in the center to increase filament life. The planar filament may be mounted on a substrate for easier handling and placement. Voltage can be used to create an electrical current through the filament, and can result in the emission of electrons from the filament. The planar filament can be utilized in an x-ray tube.

Abstract translation: 包括两个接合焊盘和连接在两个焊盘之间的非线性灯丝的平面灯丝。 长丝在中心可能较宽，以增加灯丝寿命。 平面细丝可以安装在基底上以便于处理和放置。 可以使用电压来产生通过灯丝的电流，并且可以导致从灯丝发射电子。 平面细丝可用于X射线管。

公开(公告)号：US20090129550A1

公开(公告)日：2009-05-21

申请号：US11942656

申请日：2007-11-19

Applicant: Steve G. Bandy ,  Gary F. Virshup ,  Michael Curzon Green ,  James Russell Boye ,  Dennis Runnoe ,  Robert Clark Treseder ,  David Humber

Inventor： Steve G. Bandy ,  Gary F. Virshup ,  Michael Curzon Green ,  James Russell Boye ,  Dennis Runnoe ,  Robert Clark Treseder ,  David Humber

IPC: H01J35/12

CPC classification number: H01J1/16 ,  H01J1/135 ,  H01J1/15 ,  H01J35/06 ,  H01J2201/2803 ,  H01J2201/281 ,  H01J2201/2867 ,  H01J2235/1212

Abstract: A filament assembly for use in an x-ray emitting device or other filament-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes a filament assembly for emitting a beam of electrons during tube operation. The filament assembly comprises a heat sink and a plurality of filament segments. The filament segments are configured for simultaneous emission of an electron beam for impingement on the target surface of the anode, and are electrically connected in series. Each filament segment includes first and second end portions that are thermally connected to the heat sink, and a central portion that can be configured with a modified work function for preferential electron emission.

Abstract translation: 公开了一种用于x射线发射装置或其它含灯丝装置的灯丝组件。 在一个实施例中，公开了一种X射线管，其包括容纳具有目标表面的阳极和相对于阳极定位的阴极的真空外壳。 阴极包括在管操作期间发射电子束的灯丝组件。 灯丝组件包括散热器和多个灯丝段。 灯丝段被配置为同时发射用于冲击阳极的靶表面的电子束，并且串联电连接。 每个细丝段包括热连接到散热器的第一和第二端部，以及可以配置有用于优先电子发射的修改功函数的中心部分。

公开(公告)号：US06614147B2

公开(公告)日：2003-09-02

申请号：US09756746

申请日：2001-01-10

Applicant: Sachio Koizumi ,  Toshifumi Komiya ,  Norio Iwamura

Inventor： Sachio Koizumi ,  Toshifumi Komiya ,  Norio Iwamura

IPC: H01J152

CPC classification number: H01J29/04 ,  H01J1/22 ,  H01J2201/2867

Abstract: A cathode ray tube has a phosphor screen and an electron gun including an indirectly heated cathode structure and a plurality of electrodes disposed downstream of the indirectly heated cathode structure for projecting an electron beam toward the phosphor screen, and a deflection yoke for scanning the electron beam on the phosphor screen. The indirectly heated cathode structure includes: a base metal having an electron emissive material coating on an outer top surface thereof; a metal sleeve having the base metal attached to an end of the metal sleeve; a heater housed partly within the metal sleeve which includes a major heating portion formed of a spirally wound heating wire and leg portions formed of heating wires wound spirally in a plurality of layers; an insulating film covering the major heating portion and a portion of each of the leg portions continuous with the major heating portion; and a black coating film covering a portion of the insulating film extending from the major heating portion toward each of the leg portions, the whole of the black coating film being housed within the metal sleeve.

Abstract translation: 阴极射线管具有荧光屏和包括间接加热的阴极结构的电子枪和设置在间接加热的阴极结构的下游的多个电极，用于将电子束投射到荧光屏，以及用于扫描电子束的偏转线圈 在荧光屏上。 间接加热的阴极结构包括：在其外顶表面上具有电子发射材料的母材; 金属套筒，其具有附接到金属套筒的端部的基底金属; 部分地容纳在金属套筒内的加热器，其包括由螺旋卷绕的加热丝线形成的主要加热部分和由多层螺旋缠绕的加热线形成的腿部分; 覆盖主加热部的绝缘膜和与主加热部连续的各腿部的一部分; 以及黑色涂膜，其覆盖从主加热部分朝向每个腿部延伸的绝缘膜的一部分，整个黑色涂膜被容纳在金属套筒内。

公开(公告)号：US20010015613A1

公开(公告)日：2001-08-23

申请号：US09756746

申请日：2001-01-10

Inventor： Sachio Koizumi ,  Toshifumi Komiya ,  Norio Iwamura

IPC: H01J019/48

CPC classification number: H01J29/04 ,  H01J1/22 ,  H01J2201/2867

Abstract: A cathode ray tube has a phosphor screen and an electron gun including an indirectly heated cathode structure and a plurality of electrodes disposed downstream of the indirectly heated cathode structure for projecting an electron beam toward the phosphor screen, and a deflection yoke for scanning the electron beam on the phosphor screen. The indirectly heated cathode structure includes: a base metal having an electron emissive material coating on an outer top surface thereof; a metal sleeve having the base metal attached to an end of the metal sleeve; a heater housed partly within the metal sleeve which includes a major heating portion formed of a spirally wound heating wire and leg portions formed of heating wires wound spirally in a plurality of layers; an insulating film covering the major heating portion and a portion of each of the leg portions continuous with the major heating portion; and a black coating film covering a portion of the insulating film extending from the major heating portion toward each of the leg portions, the whole of the black coating film being housed within the metal sleeve.

Abstract translation: 阴极射线管具有荧光屏和包括间接加热的阴极结构的电子枪和设置在间接加热的阴极结构的下游的多个电极，用于将电子束投射到荧光屏，以及用于扫描电子束的偏转线圈 在荧光屏上。 间接加热的阴极结构包括：在其外顶表面上具有电子发射材料的母材; 金属套筒，其具有附接到金属套筒的端部的基底金属; 部分地容纳在金属套筒内的加热器，其包括由螺旋卷绕的加热丝线形成的主要加热部分和由多层螺旋缠绕的加热线形成的腿部分; 覆盖主加热部的绝缘膜和与主加热部连续的各腿部的一部分; 以及黑色涂膜，其覆盖从主加热部分朝向每个腿部延伸的绝缘膜的一部分，整个黑色涂膜被容纳在金属套筒内。

公开(公告)号：US07539286B1

公开(公告)日：2009-05-26

申请号：US11942656

申请日：2007-11-19

Applicant: Steve Bandy ,  Gary F Virshup ,  Michael Curzon Green ,  James Russell Boye ,  Dennis Runnoe ,  Robert Clark Treseder ,  David Humber

Inventor： Steve Bandy ,  Gary F Virshup ,  Michael Curzon Green ,  James Russell Boye ,  Dennis Runnoe ,  Robert Clark Treseder ,  David Humber

IPC: H01J35/06

CPC classification number: H01J1/16 ,  H01J1/135 ,  H01J1/15 ,  H01J35/06 ,  H01J2201/2803 ,  H01J2201/281 ,  H01J2201/2867 ,  H01J2235/1212

Abstract: A filament assembly for use in an x-ray emitting device or other filament-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes a filament assembly for emitting a beam of electrons during tube operation. The filament assembly comprises a heat sink and a plurality of filament segments. The filament segments are configured for simultaneous emission of an electron beam for impingement on the target surface of the anode, and are electrically connected in series. Each filament segment includes first and second end portions that are thermally connected to the heat sink, and a central portion that can be configured with a modified work function for preferential electron emission.

Abstract translation: 公开了一种用于x射线发射装置或其它含灯丝装置的灯丝组件。 在一个实施例中，公开了一种X射线管，其包括容纳具有目标表面的阳极和相对于阳极定位的阴极的真空外壳。 阴极包括在管操作期间发射电子束的灯丝组件。 灯丝组件包括散热器和多个灯丝段。 灯丝段被配置为同时发射用于冲击阳极的靶表面的电子束，并且串联电连接。 每个细丝段包括热连接到散热器的第一和第二端部，以及可以配置有用于优先电子发射的修改功函数的中心部分。

公开(公告)号：US07271530B2

公开(公告)日：2007-09-18

申请号：US11583747

申请日：2006-10-19

Applicant: Masaru Kuribayashi ,  Masahiro Nonoguchi ,  Naohisa Osaka ,  Yoji Kobayashi

Inventor： Masaru Kuribayashi ,  Masahiro Nonoguchi ,  Naohisa Osaka ,  Yoji Kobayashi

IPC: H01J1/15

CPC classification number: H01J1/16 ,  H01J35/06 ,  H01J2201/2867

Abstract: A filament for an X-ray tube has a varied wire diameter but has a constant coil outside diameter to obtain a good uniformity of the longitudinal temperature distribution of the filament. The filament has a wire diameter d which is gradually reduced from the longitudinal central region to the longitudinal ends while the coil outside diameter D is fixed along the longitudinal direction. The wire is polished at only the inside of the coil to reduce the wire diameter. In order to make the longitudinal temperature distribution uniform as far as possible, the difference Δd between the wire diameter dmax at the longitudinal central region and the wire diameter dmin at the longitudinal ends should satisfy the following limitation: Δd/dmax=0.041 to 0.145.

Abstract translation: 用于X射线管的灯丝具有变化的线径，但具有恒定的线圈外径以获得长丝的纵向温度分布的良好均匀性。 灯丝具有从纵向中心区域到纵向端部逐渐减小的线径d，而线圈外径D沿着纵向方向固定。 线材只在线圈内部抛光，以减少线径。 为了使纵向温度分布尽可能均匀，在纵向中心区域的线径d max max之间的差值Deltad与线径d < 纵向端应满足以下限制：<？in-line-formula description =“In-line Formulas”end =“lead”？> Deltad / d = 0.041 to 0.145 < line-formula description =“In-line Formulas”end =“tail”？>