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61.发明申请公开(公告)号：US20050073235A1
公开(公告)日：2005-04-07
申请号：US10951509
申请日：2004-09-28
Applicant: Yukihisa Takeuchi , Tsutomu Nanataki , Iwao Ohwada
Inventor： Yukihisa Takeuchi , Tsutomu Nanataki , Iwao Ohwada
IPC: H01J29/04 , G09G3/22 , H01J1/05 , H01J1/14 , H01J1/30 , H01J1/312 , H01J19/06 , H01J31/12 , H01J63/02 , H01J63/06
CPC classification number: H01J1/312 , B82Y10/00 , G09G3/22 , G09G2310/06 , H01J31/127 , H01J63/02 , H01J2201/3125
Abstract: An electron emitter includes a lower electrode formed on a glass substrate, an emitter section made of dielectric film formed on the lower electrode, and an upper electrode formed on the emitter section. A drive voltage for electron emission is applied between the upper electrode and the lower electrode. At least the upper electrode has a plurality of through regions through which the emitter section is exposed. The upper electrode has a surface which faces the emitter section in peripheral portions of the through regions and which is spaced from the emitter section.
Abstract translation: 电子发射器包括形成在玻璃基板上的下电极，形成在下电极上的电介质膜制成的发射极部分和形成在发射极部分上的上电极。 用于电子发射的驱动电压施加在上电极和下电极之间。 至少上部电极具有多个通过发射极部分暴露的通过区域。 上电极具有与通孔区域的周边部分相对的发射极部分的表面，并且与发射极部分间隔开。
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公开(公告)号：US5959395A
公开(公告)日：1999-09-28
申请号：US727619
申请日：1996-10-18
Applicant: Hiroshi Sakurai , Yoshiki Hayashida , Masayuki Kubo , Katsuyuki Yamashita
Inventor： Hiroshi Sakurai , Yoshiki Hayashida , Masayuki Kubo , Katsuyuki Yamashita
CPC classification number: H01J1/142
Abstract: A cathode for an electron tube formed by coating the base of the cathode for the electron tube with an alkaline-earth metal carbonate containing at least barium as the alkaline-earth metal, and thermally decomposing in a vacuum to generate an emitter mainly comprising an alkaline-earth metal oxide, wherein a mixture of two or more kinds of alkaline-earth metal carbonate crystalline particles having different shapes is used as the above mentioned alkaline-earth metal carbonate. Since the present invention can provide a cathode for electron tube having improved both cut-off drift and emission characteristic at the same time, it is useful as a cathode for the electron gun of a CRT, or a cathode for the electron gun of an electron microscope.
Abstract translation: PCT No.PCT / JP96 / 00493 Sec。 371日期：1996年10月18日 102（e）日期1996年10月18日PCT 1996年2月29日PCT PCT。 第WO97 / 32330号公报 日期1997年9月4日为电子管的阴极，通过用至少含有钡的碱土金属碳酸盐作为碱土金属涂布电子管的阴极的基底而形成，并且在真空中热分解以产生 主要包含碱土金属氧化物的发射体，其中使用两种或更多种具有不同形状的碱土金属碳酸盐结晶颗粒的混合物作为上述碱土金属碳酸盐。 由于本发明可以提供同时具有改进的截止漂移和发射特性的电子管阴极，因此可用作CRT的电子枪的阴极或用于电子的电子枪的阴极 显微镜。
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公开(公告)号：US5847498A
公开(公告)日：1998-12-08
申请号：US363184
申请日：1994-12-23
Applicant: Vivek Mehrotra , Hemant S. Betrabet , Susan McGee , Thomas F. McGee
Inventor： Vivek Mehrotra , Hemant S. Betrabet , Susan McGee , Thomas F. McGee
IPC: H01J9/02 , H01J61/067 , H01J61/78 , H01J1/14 , H01J19/06
CPC classification number: H01J61/78 , H01J61/067 , H01J9/022
Abstract: Composite sintered electrodes with improved properties that make them suitable for use in a variety of lamp types, are provided which comprise a refractory metal and a substantial amount of a refractory emitter oxide, either single layer or multiple layer, the composites having been subjected to sintering at an elevated temperature effective to form a composite electrode having a density of at least 85%, preferably in the presence of a sintering activator, such as for example, Ni, or mixture thereof with a sintering aid such as, for example, Li.sub.2 O.
Abstract translation: 提供具有改进的性质的复合烧结电极，其适用于各种灯类型，其包括难熔金属和大量的耐火发射体氧化物，单层或多层，复合材料已进行烧结 在有效形成密度为至少85％的复合电极的高温下，优选在烧结活化剂例如Ni的存在下，或其与烧结助剂例如Li 2 O的混合物。
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64.发明授权
公开(公告)号：US5757115A
公开(公告)日：1998-05-26
申请号：US455998
申请日：1995-05-31
Applicant: Maki Narita , Toshikazu Sugimura , Hiroyuki Sakatani , Tsuyoshi Tanabe
Inventor： Maki Narita , Toshikazu Sugimura , Hiroyuki Sakatani , Tsuyoshi Tanabe
Abstract: With a production of a cathode member for an electron tube having cathode materials containing Ni, a metal having a reduction behavior and an electron emissive agent sintered to be one body and its electron emitting surface subjected to a specular processing, it is possible to obtain an inexpensive cathode characterized by that: the operation temperature is low; the electron emission distribution is excellent because of the smooth electron emitting surface; and the electron emission is enabled with a high current density for a long interval of time.
Abstract translation: 通过生产具有阴极材料的阴极材料的阴极材料，其具有Ni，具有还原特性的金属和烧结成一体的电子发射剂，其电子发射表面进行镜面加工，可以获得 廉价的阴极，其特征在于：操作温度低; 由于电子发射面平滑，电子发射分布极好; 并且电子发射能够在长时间间隔内以高电流密度实现。
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公开(公告)号：US5747921A
公开(公告)日：1998-05-05
申请号：US819020
申请日：1997-03-17
Applicant: Yeoung Ku Kim
Inventor： Yeoung Ku Kim
CPC classification number: H01J1/28
Abstract: An impregnation type cathode for a cathode ray tube includes a porous cathode piece having electron emission material impregnated therein. The porous cathode piece has a layer of W--Sc (or a layer of W--Sc.sub.2 O.sub.3) on its surface and a layer of alloy formed of at least two elements of a group of elements consisting of Ir, Os, Ru, and Re on the layer of W--Sc (or the layer of W--SC.sub.2 O.sub.3)
Abstract translation: 阴极射线管的浸渍型阴极包括浸渍有电子发射材料的多孔阴极片。 多孔阴极片在其表面上具有一层W-Sc（或一层W-Sc2O3），并且由由Ir，Os，Ru和Re on组成的一组元素中的至少两个元素形成的合金层 W-Sc层（或W-SC2O3层）
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Patent Agency Ranking
公开(公告)号：US5656883A
公开(公告)日：1997-08-12
申请号：US692591
申请日：1996-08-06
Applicant: Alton O. Christensen
Inventor： Alton O. Christensen
CPC classification number: H01J1/304 , H01J2201/30446 , H01J2201/319
Abstract: This disclosure is directed toward field emission surfaces, and is more particularly directed toward improvements in cold, low field, high current, low noise field emission devices and surfaces. Such devices are used in field emission display devices such as video displays and information displays. The device utilizes a cermet with graded concentration of insulative and conductive particles deposited on the truncated point of a conical emitter. The emission surface of the cermet is insensitive to gases that oxidize or poison the emission surface. Such gases and other contaminants emanate from a phosphor when the emission device is used in phosphor display devices. The field emission device is operated at lower potentials thereby reducing power requirements and minimizing heat dissipation requirements. Further, the field emission device which operates at lower field in order to reduce mechanically and temporally unstable emission sites which result in current bursts and current deficits at these sites. Still further, the field emission device incorporates internal resistors which provide series resistance to limit noise at affected emission areas thereby eliminating the need to limit noise by incorporating high-valued resistors, typically in series with the cathode terminal of the emission device, which reduce the potential to the entire emission surface and increasing potentials required to produce current sufficient to excite display phosphor.
Abstract translation: 本公开涉及场发射表面，更具体地涉及在冷，低场，高电流，低噪声场发射器件和表面上的改进。 这种设备用于诸如视频显示器和信息显示器的场发射显示设备中。 该器件利用沉积在锥形发射极的截头点上的分级浓度的绝缘和导电颗粒的金属陶瓷。 金属陶瓷的发射表面对氧化或污染发射表面的气体不敏感。 当发光装置用于荧光体显示装置时，这种气体和其它污染物从磷光体发出。 场致发射器件以较低的电位运行，从而降低功率需求并最大限度地减少散热要求。 此外，场致发射器件在较低场操作，以减少在这些位置导致电流突发和电流缺陷的机械和时间上不稳定的发射位置。 此外，场致发射器件包含内部电阻器，其提供串联电阻以限制受影响的发射区域处的噪声，从而消除了通过并入通常与发射器件的阴极端子串联的高电阻电阻来限制噪声的需要，这降低了 对整个发射表面的电位和增加产生足以激发显示荧光体的电流所需的电位。
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公开(公告)号：US4783613A
公开(公告)日：1988-11-08
申请号：US55035
申请日：1987-05-28
Applicant: Shigehiko Yamamoto , Isato Watanabe , Sadanori Taguchi , Susumu Sasaki
Inventor： Shigehiko Yamamoto , Isato Watanabe , Sadanori Taguchi , Susumu Sasaki
CPC classification number: H01J1/28
Abstract: An impregnated cathode comprising a refractory porous body whose pore parts are impregnated with an electron emissive material including barium and a thin film layer comprising tungsten, scandium and/or an oxide of scandium, deposited on the surface of the refractory porous body, characterized in that the thin film layer contains an oxide of tungsten, and/or an oxide of tungsten and scandium, has a distinguished electron emission property and a long life.
Abstract translation: 一种浸渍阴极，其包含耐火多孔体，其孔部分浸渍有包含钡的电子发射材料和沉积在耐火多孔体表面上的包含钨，钪和/或钪氧化物的薄膜层，其特征在于： 薄膜层含有钨的氧化物和/或钨和钪的氧化物，具有显着的电子发射性能和长寿命。
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公开(公告)号：US4737679A
公开(公告)日：1988-04-12
申请号：US826339
申请日：1986-02-05
Applicant: Shigehiko Yamamoto , Sadanori Taguchi , Toshiyuki Aida , Isato Watanabe , Susumu Kawase
Inventor： Shigehiko Yamamoto , Sadanori Taguchi , Toshiyuki Aida , Isato Watanabe , Susumu Kawase
CPC classification number: H01J1/28 , Y10T428/265
Abstract: The present invention relates to an impregnated cathode produced by attaching at least two layered thin films, the thin films comprising an under layer consisting of a high melting point metal thin film composed of, for example, Os, Ru, Rh, Pd, Ir, Pt, Re, Mo, W, Ta, etc., and an over layer consisting of a high melting point metal layer which contains Sc.sub.2 O.sub.3 and which is placed over the layer, on the surface of the impregnated cathode pellet generated by impregnating a refractory porous base body with electron emissive materials. The invention relates also to an electron tube having this cathode. This cathode maintains a low work functional mono-layer stably for a long period of time on its surface.
Abstract translation: 本发明涉及通过附着至少两层薄膜而制造的浸渍阴极，该薄膜包括由例如由Os，Ru，Rh，Pd，Ir组成的高熔点金属薄膜构成的底层， Pt，Re，Mo，W，Ta等，以及由含有Sc 2 O 3的高熔点金属层构成的覆层，该层由放置在该层上的浸渍的阴极粒子的表面上， 基体与电子发射材料。 本发明还涉及具有该阴极的电子管。 该阴极在其表面上长时间稳定地保持低功函数单层。
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公开(公告)号：US4636681A
公开(公告)日：1987-01-13
申请号：US219941
申请日：1980-12-24
Applicant: Akira Misumi
Inventor： Akira Misumi
CPC classification number: H01J1/14
Abstract: In a directly heated cathode including a base formed of an alloy containing nickel as its principal component and coated with an oxide of an alkaline earth metal which emits electrons, a layer of a metal selected from the group consisting of nickel, cobalt, platinum and rhodium or of an alloy containing one of these metals as its principal component is formed on both surfaces of the base to one of which surfaces the coating of the oxide is applied, so as to thereby prevent the peeling-off of the coating of the oxide from the base. In order to avoid deformation of the base, a powder alloy containing tungsten and nickel as its principal components, a powder alloy containing molybdenum and nickel as its principal components or one of these powder alloys which is coated with nickel, cobalt or a cobalt-nickel alloy is deposited on the surface of the base to which the coating of the oxide is applied.
Abstract translation: 在由包含镍作为其主要成分并且涂覆有发射电子的碱土金属的氧化物的合金形成的基底的直接加热的阴极中，选自镍，钴，铂和铑的金属层 或者含有这些金属中的一种作为其主要成分的合金形成在基底的两个表面上，其中一个表面施加氧化物的涂层，从而防止氧化物涂层的剥离 的基地。 为了避免基体的变形，以钨和镍为主要成分的粉末合金，以钼和镍为主要成分的粉末合金或这些粉末合金之一，其中涂有镍，钴或钴镍 合金沉积在施加氧化物涂层的基底的表面上。
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公开(公告)号：US4350920A
公开(公告)日：1982-09-21
申请号：US165893
申请日：1980-07-03
Applicant: Theodorus C. J. M. Bertens
Inventor： Theodorus C. J. M. Bertens
CPC classification number: H01J1/28
Abstract: A compressed dispenser cathode having 1-15% by weight of Ba.sub.2 Sc.sub.2 O.sub.5 in a porous metal cathode body has an emission having a larger current density (exceeding 6 A/cm.sup.2) and a longer life (more than 3000 hours).
Abstract translation: 在多孔金属阴极体中具有1-15重量％的Ba 2 Sc 2 O 5的压缩分配器阴极具有较大的电流密度（超过6A / cm 2）和更长寿命（超过3000小时）的发射。
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