公开(公告)号：US2116788A

公开(公告)日：1938-05-10

申请号：US9833336

申请日：1936-08-28

Applicant: SUPERIOR TUBE CO

Inventor： ADOLF HASLAUER

IPC: H01J1/26

CPC classification number: H01J1/26

公开(公告)号：US6054802A

公开(公告)日：2000-04-25

申请号：US29032

申请日：1998-02-20

Applicant: Takuya Ohira ,  Masato Saito ,  Hiroyuki Teramoto

Inventor： Takuya Ohira ,  Masato Saito ,  Hiroyuki Teramoto

IPC: H01J1/142 ,  H01J1/26 ,  H01J1/00

CPC classification number: H01J1/142 ,  H01J1/26

Abstract: Problems with a conventional cathode for electronic tubes arose because metals composing the substrate were subjected to heat deformation, resulting in a relatively lage drift of cutoff voltage. The present invention diminishes the heat deformation of the substrate to obtain a cathode with a small drift of cutoff voltage. Particularly, heat expansion coefficients can be made uniform while metals in the metal layer are prevented from diffusing into the substrate. This is done by incorporating the same metals present in the metal layer into the metals composing the substrate, thereby supressing deformation of the substrate.

Abstract translation: PCT No.PCT / JP97 / 01976 Sec。 371日期：1998年2月20日 102（e）1998年2月20日PCT 1997年6月10日PCT公布。 公开号WO97 / 49108 PCT。 日期1997年12月24日由于构成基板的金属受到热变形，导致电子管的常规阴极的问题，导致截止电压相对较大的漂移。 本发明减小了基板的热变形以获得具有小的截止电压漂移的阴极。 特别地，可以使热膨胀系数均匀，防止金属层中的金属扩散到基板中。 这通过将金属层中存在的相同金属掺入构成基板的金属中，从而抑制基板的变形。

公开(公告)号：US5762997A

公开(公告)日：1998-06-09

申请号：US620161

申请日：1996-03-22

Applicant: Akihito Hara ,  Toshiharu Higuchi ,  Toru Yakabe ,  Shigeo Kanda ,  Eiji Yamamoto

Inventor： Akihito Hara ,  Toshiharu Higuchi ,  Toru Yakabe ,  Shigeo Kanda ,  Eiji Yamamoto

IPC: H01J1/26 ,  H01J9/04 ,  B05D5/12

CPC classification number: H01J1/26 ,  H01J9/04 ,  H01J2209/012

Abstract: A method of forming a coating on an electron emitting cathode, in which (1) a black coating is formed on the inner surface of a cathode sleeve constituting the electron emitting cathode, (2) the cathode sleeve is filled with a suspension as a coating material, and (3) a porous absorbent member is brought into contact with or near an opening portion of the cathode sleeve at the same time or after the cathode sleeve is filled with the suspension, thereby causing the porous absorbent member to absorb an unnecessary portion of the suspension. Thereafter, the cathode sleeve to which the coating material is adhered is heat-treated. As a result, a black coating having a uniform thickness is formed, on the inner surface of the cathode sleeve, as a sintered layer obtained by mixing tungsten having an average particle diameter in a range of 0.5 .mu.m (inclusive) to 2 .mu.m (inclusive) with alumina having an average particle diameter in a range of 0.1 .mu.m (inclusive) to 1 .mu.m (exclusive) at a weight ratio of the tungsten to the alumina in a range of (90:10) to (65:35).

Abstract translation: 一种在电子发射阴极上形成涂层的方法，其中（1）在构成电子发射阴极的阴极套管的内表面上形成黑色涂层，（2）阴极套管填充有作为涂层的悬浮液 材料，和（3）同时或在阴极套筒填充悬浮液之后，使多孔吸收体与阴极套筒的开口部分接触或接近，从而使多孔吸收件吸收不需要的部分 的暂停。 之后，对涂覆材料附着的阴极套进行热处理。 结果，在阴极套筒的内表面上形成具有均匀厚度的黑色涂层，作为通过混合平均粒径在0.5μm（包括）至2μm的范围内的钨而获得的烧结层 （90:10）〜（65：10）的范围内的平均粒径在0.1μm以上至1μm以下的氧化铝（不包括在内），钨与氧化铝的重量比为 35）。

公开(公告)号：US5697823A

公开(公告)日：1997-12-16

申请号：US517440

申请日：1995-08-21

Applicant: Masataka Santoku ,  Jyoji Karasawa ,  Daichi Imabayashi

Inventor： Masataka Santoku ,  Jyoji Karasawa ,  Daichi Imabayashi

IPC: H01J1/26 ,  H01J9/04 ,  H01J9/18 ,  H01J9/42

CPC classification number: H01J9/04 ,  H01J1/26

Abstract: An electron gun cathode structure includes a support member made of an insulating material, a first grid fixed to the support member, and a cathode disposed on the side of the support member opposite to the first grid. A thermal expansion .DELTA.L.sub.S /L.sub.S of the insulating material constituting the support member due to heat from the cathode is larger than a thermal expansion .DELTA.L.sub.G /L.sub.G of a material constituting the first grid due to heat from the cathode. A manufacturing method of an electron gun cathode structure includes preparing a member including a first face and a second face having a step therebetween, a height of the step being equal to a predetermined distance d.sub.12, placing a first grid on the first face, placing a spacer on the second face, placing an insulating support member on the first grid and the spacer, and grinding a top surface of the spacer opposite to its surface that is fixed to the support member so that an actual distance d.sub.12 becomes a desired value. Further, a distance d between the top surface of the spacer and a cathode is measured with a non-contact type distance measuring instrument, and a position of the cathode with respect to the first grid is so set that a difference d-d.sub.12 becomes a desired value.

Abstract translation: 电子枪阴极结构包括由绝缘材料制成的支撑构件，固定到支撑构件的第一栅极和设置在与第一栅极相对的支撑构件侧的阴极。 由于来自阴极的热而构成支撑构件的绝缘材料的热膨胀DELTA LS / LS大于由于来自阴极的热量构成第一格栅的材料的热膨胀DELTA LG / LG。 电子枪阴极结构的制造方法包括：准备包括第一面和第二面的构件，其间具有台阶，台阶的高度等于预定距离d12，将第一栅格放置在第一面上， 在第二面上设置隔离物，将绝缘支撑构件放置在第一格栅和间隔件上，并且研磨与其固定到支撑构件的表面相对的间隔件的顶表面，使得实际距离d12变为期望值。 此外，用非接触型距离测量仪测量间隔物的顶表面和阴极之间的距离d，并且阴极相对于第一栅极的位置被设定为使得差d-d12成为 所需值。

公开(公告)号：US5543682A

公开(公告)日：1996-08-06

申请号：US214280

申请日：1994-03-17

Applicant: Akihito Hara ,  Toshiharu Higuchi ,  Toru Yakabe ,  Shigeo Kanda ,  Eiji Yamamoto

Inventor： Akihito Hara ,  Toshiharu Higuchi ,  Toru Yakabe ,  Shigeo Kanda ,  Eiji Yamamoto

IPC: H01J1/26 ,  H01J9/04 ,  H01J29/02

CPC classification number: H01J1/26 ,  H01J9/04 ,  H01J2209/012

Abstract: A black coating having a uniform thickness is formed, on the inner surface of the cathode sleeve, as a sintered layer obtained by mixing tungsten having an average particle diameter in a range of 0.5 .mu.m (inclusive) to 2 .mu.m (inclusive) with alumina having an average particle diameter in a range of 0.1 .mu.m (inclusive) to 1 .mu.m (exclusive) at a weight ratio of the tungsten to the alumina in a range of (90:10) to (65:35).

Abstract translation: 在阴极套筒的内表面上形成具有均匀厚度的黑色涂层，作为将平均粒径在0.5μm以上至2μm（含）的钨与将 在（90:10）〜（65:35）的范围内，钨与氧化铝的重量比的平均粒径为0.1μm以上且1μm以下的氧化铝。

公开(公告)号：US5453657A

公开(公告)日：1995-09-26

申请号：US299245

申请日：1994-08-31

Applicant: Gong S. Park

Inventor： Gong S. Park

IPC: H01J29/04 ,  H01J1/22 ,  H01J1/26 ,  H01J1/20 ,  H01J19/14 ,  H01J29/46

CPC classification number: H01J1/22 ,  H01J1/26 ,  H01J2201/2875

Abstract: This invention relates to an indirectly-heated cathode heater structure comprising a heat generation section disposed inwardly of an upper portion of a sleeve for generating heat to emit thermions at an electron gun of a cathode ray tube, the heat generation section having a given calorific value being formed to have a length 25.about.33 % of the length of the sleeve, whereby heat loss at a lower portion of the sleeve during heating operation of the heater may be minimized, resulting in improving an overshoot rate of the heater.

Abstract translation: 本发明涉及一种间接加热的阴极加热器结构，该结构包括一个发热部分，该发热部分设置在套管上部的内部，用于产生热量以在阴极射线管的电子枪处发射热量，该发热部分具有给定的热值 形成为具有长度为25％的套筒长度的差异，因此加热器的加热操作期间套筒下部的热损失可以最小化，从而改善加热器的过冲速率。

公开(公告)号：US5289076A

公开(公告)日：1994-02-22

申请号：US808493

申请日：1991-12-17

Applicant: Gyeong S. Lee

Inventor： Gyeong S. Lee

IPC: H01J1/28 ,  H01J1/20 ,  H01J1/26 ,  H01J1/24

CPC classification number: H01J1/26

Abstract: A cathode structure for supporting a cathode sleeve of a cathode ray tube includes a plurality of metal ribbons for supporting the cathode sleeve, where one end of a ribbon is fixed to an upper end of the cathode sleeve and the other end of the same ribbon is fixed to an upper end of a cathode holder, that allows thermal expansion of the cathode sleeve to occur towards the cathode holder, and maintain a constant distance between a cathode cup on the cathode sleeve and a first electrode of an electron gun.

Abstract translation: 用于支撑阴极射线管的阴极套管的阴极结构包括用于支撑阴极套筒的多个金属带，其中带的一端固定到阴极套管的上端，而同一带的另一端为 固定到阴极保持器的上端，其允许阴极套管的热膨胀朝向阴极保持器发生，并且在阴极套管上的阴极杯和电子枪的第一电极之间保持恒定的距离。

公开(公告)号：US4904896A

公开(公告)日：1990-02-27

申请号：US675226

申请日：1984-11-27

Applicant: Kenneth K. T. Chiang

Inventor： Kenneth K. T. Chiang

IPC: H01J1/14 ,  H01J1/142 ,  H01J1/26

CPC classification number: H01J1/26 ,  H01J1/142

Abstract: In a vacuum electron tube, a novel oxide cathode comprising a metal substrate, means for heating said substrate to its operating temperature, and a layer of alkaline-earth-metal oxide on the substrate. The substrate is essentially free from silicon and contains operative concentrations greater than 1.0 weight % of chromium metal for progressively migrating into the oxide layer and reducing the oxide to yield alkaline-earth-metal.

Abstract translation: 在真空电子管中，包括金属基板的新型氧化物阴极，用于将基板加热至其工作温度的装置和基底上的碱土金属氧化物层。 基材基本上不含硅，并且含有大于1.0重量％的铬金属的操作浓度，用于逐渐迁移到氧化物层中并还原氧化物以产生碱土金属。

公开(公告)号：US4524296A

公开(公告)日：1985-06-18

申请号：US445756

申请日：1982-12-01

Applicant: Shouji Nakayama ,  Yukio Takanashi ,  Toshiharu Higuchi ,  Touru Yakabe

Inventor： Shouji Nakayama ,  Yukio Takanashi ,  Toshiharu Higuchi ,  Touru Yakabe

IPC: H01J1/18 ,  H01J1/20 ,  H01J1/22 ,  H01J1/26 ,  H01J29/04 ,  H01J29/48 ,  H01J1/94 ,  H01J19/48

CPC classification number: H01J1/20 ,  H01J1/18 ,  H01J29/04 ,  H01J29/485

Abstract: A cathode structure includes a thermal conductive member, a heater for heating a thermal conductive member, a metal substrate having a first surface facing a thermal conductive member and a second surface and attached to the thermal conductive member to form a space between a central portion of a second surface and the thermal conductive member, and an electron emitting member provided on a second surface of a metal substrate.

Abstract translation: 阴极结构包括导热构件，用于加热导热构件的加热器，具有面向导热构件的第一表面的金属基板和第二表面，并附接到导热构件，以在导热构件的中心部分之间形成空间 第二表面和导热构件，以及设置在金属基板的第二表面上的电子发射构件。

公开(公告)号：US4260665A

公开(公告)日：1981-04-07

申请号：US946194

申请日：1978-09-27

Applicant: Toshiyuki Aida ,  Sadanori Taguchi ,  Isamu Yuito ,  Ushio Kawabe ,  Shigehiko Yamamoto ,  Yukio Honda ,  Norio Shibata ,  Hiroshi Okano

Inventor： Toshiyuki Aida ,  Sadanori Taguchi ,  Isamu Yuito ,  Ushio Kawabe ,  Shigehiko Yamamoto ,  Yukio Honda ,  Norio Shibata ,  Hiroshi Okano

IPC: H01J1/26 ,  H01J1/14 ,  H01J1/15 ,  H01J9/04

CPC classification number: H01J9/04 ,  H01J1/14 ,  Y10T428/12028 ,  Y10T428/12618 ,  Y10T428/12875 ,  Y10T428/12944

Abstract: An electron tube cathode in such a structure comprising a Ni-W-Zr alloy (W content: 20-28 wt. %) having a grain size of 4-10 .mu.m as a base metal, a 1,000-2,000 A-thick Pt film provided on the surface of the base metal, and an electron emitting material layer consisting of alkaline earth metal oxide provided on the Pt film has less emission lowering and less peeling of the electron emitting material layer, even if placed in a long time service. The electron tube cathode can be produced according to a method comprising (i) a step of annealing a base metal of Ni-W-Zr alloy (W content: 20-28 wt. %) at 1,000.degree.-1,200.degree. C., (ii) a step of providing a 1,000-2,000 A thick Pt film on the surface of the base metal, and (iii) a step of providing an electron emitting material layer consisting of alkaline earth metal oxide on the Pt film.

Abstract translation: 这种结构中的电子管阴极，其特征在于：以贱金属为基准的粒径为4-10μm的Ni-W-Zr合金（W含量：20〜28重量％），1000〜 并且由于设置在Pt膜上的由碱土类金属氧化物构成的电子发射材料层即使放置在长时间的服务中也具有较少的发射降低和较少的电子发射材料层的剥离。 电子管阴极可以根据以下方法制造：（i）在1000-1200℃下退火Ni-W-Zr合金的母材（W含量：20-28重量％）的步骤，（ ii）在母材表面上提供1,000-2,000A厚的Pt膜的步骤，和（iii）在Pt膜上提供由碱土金属氧化物构成的电子发射材料层的步骤。