公开(公告)号：US6033277A

公开(公告)日：2000-03-07

申请号：US86744

申请日：1998-05-29

Applicant: Toshio Kaihara

Inventor： Toshio Kaihara

IPC: H01J9/02 ,  H01J9/00 ,  H01J9/04

CPC classification number: H01J9/025 ,  H01J2209/0226

Abstract: The present invention provides a method for reshaping up a cone-like electrode which is made of a refractory metal containing silicon. The method comprises the following steps. A surface of the cone-like electrode is subjected to an oxidation of silicon which is contained in the refractory metal. The oxidation is generated at rates which increase toward a top portion of the cone-like electrode. As a result, a silicon oxide film is formed, which coats the cone-like electrode. The silicon oxide film has thickness which gradually increase toward a bottom portion of the cone-like electrode. An interface between the silicon oxide film and the cone-like electrode has sloped angles which increase toward the top portion. The silicon oxide film is removed to thereby expose a reshaped cone electrode which has a sharply pointed top. The reshaped cone electrode has a surface having sloped angles which increase toward the sharply pointed top.

Abstract translation: 本发明提供一种由含有硅的难熔金属制成的锥形电极的重新形成方法。 该方法包括以下步骤。 锥形电极的表面经受包含在难熔金属中的硅的氧化。 以朝向锥形电极的顶部增加的速率产生氧化。 结果，形成了覆盖锥形电极的氧化硅膜。 氧化硅膜的厚度朝向锥形电极的底部逐渐增加。 氧化硅膜和锥形电极之间的界面具有向顶部增加的倾斜角度。 去除氧化硅膜，从而暴露具有尖尖顶部的重新定形的锥形电极。 重新形成的锥形电极具有朝尖锐尖端增加的倾斜角度的表面。

公开(公告)号：US5766054A

公开(公告)日：1998-06-16

申请号：US700094

申请日：1996-08-20

Applicant: Toshio Kaihara

Inventor： Toshio Kaihara

IPC: H01J9/385 ,  H01J9/44 ,  H01J29/04

CPC classification number: H01J9/385 ,  H01J2209/3896

Abstract: In order to heat a field emission type cold cathode 10 of a cathode ray tube, which generates electron beams, to a temperature high enough to obtain a desired electron emission characteristics of the field emission type cold cathode even when an inner temperature distribution of an evacuating furnace 20, which includes furnace temperature setting heaters 21 and a vacuum pump 23, is not uniform, the field emission type cold cathode 10 of an electron gun 3 of the cathode ray tube, which is provided within a neck portion 2a of a bulb 2 of the cathode ray tube, is locally heated by a neck heater 22 detachably mounted on an outer peripheral surface of the neck portion 2a while the bulb 2 is being evacuated.

Abstract translation: 为了将产生电子束的阴极射线管的场致发射型冷阴极10加热到足够高的温度，以获得场致发射型冷阴极的期望的电子发射特性，即使当排气的冷阴极的内部温度分布 包括炉温设定加热器21和真空泵23的炉20不均匀，阴极射线管的电子枪3的场发射型冷阴极10设置在灯泡2的颈部2a内 通过颈部加热器22局部加热，颈部加热器22可拆卸地安装在颈部2a的外周表面上，同时灯泡2被抽真空。

公开(公告)号：US5698855A

公开(公告)日：1997-12-16

申请号：US680837

申请日：1996-07-16

Applicant: Toshio Kaihara

Inventor： Toshio Kaihara

IPC: H01J29/04 ,  H01J9/18 ,  H01J29/48 ,  H01J29/50

CPC classification number: H01J9/18 ,  H01J29/481 ,  H01J2201/304

Abstract: The present invention provides an electron gun assembly including at least one field emission type cold cathode acting as an electron beam source, a support for supporting the cold cathode thereon, a control electrode spaced away from the cold cathode, the control electrode cooperating with the support to enclose the cold cathode therein, a thermal shield member provided both around the control electrode and below the support to prevent heat conduction to the cold cathode. The thermal shield member does not allow heat conduction to the cold cathode when the electron gun assembly is to be enclosed in a glass valve by softening a neck portion of the glass valve with an oxygen burner and then attaching the softened neck portion to the electron gun assembly, resulting in that an emitter of the cold cathode is not increased in temperature and that a summit of an emitter is not oxidized. Thus, the work function of the cold cathode is not increased, and thereby there can be obtained a cathode ray tube including a field emission type cold cathode in which the emission performance is not degraded.

Abstract translation: 本发明提供了一种电子枪组件，其包括至少一个用作电子束源的场致发射型冷阴极，用于支撑冷阴极的支撑体，与冷阴极间隔开的控制电极，与支撑体配合的控制电极 以将冷阴极封闭在其中，设置在控制电极周围并在支撑件下方的热屏蔽构件，以防止对冷阴极的热传导。 当通过用氧气燃烧器软化玻璃阀的颈部部分，然后将软化的颈部部分附接到电子枪，将电子枪组件封闭在玻璃阀中时，热屏蔽构件不允许对冷阴极的热传导 组装，导致冷阴极的发射极的温度不升高，并且发射极的顶点不被氧化。 因此，冷阴极的功函数不增加，从而可以获得包括发射性能不降低的场发射型冷阴极的阴极射线管。