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公开(公告)号：US4494034A
公开(公告)日：1985-01-15
申请号：US448402
申请日：1982-12-09
Applicant: Robert F. Keller
Inventor： Robert F. Keller
CPC classification number: H01J23/05
Abstract: A magnetron includes an evacuated envelope having therein a cathode assembly. An anode electrode surrounds the cathode assembly. The cathode assembly is formed of a helically wound filament having a quadrilateral cross-section. One of the surfaces of the quadrilateral cross-section filament is wider than the others. The wider surface of the filament faces the anode electrode. The quadrilateral cross-section thereby increasing the sag resistance of the filament.
Abstract translation: 磁控管包括其中具有阴极组件的真空外壳。 阳极电极围绕阴极组件。 阴极组件由具有四边形横截面的螺旋缠绕的细丝形成。 四边形横截面细丝的一个表面比其他表面宽。 灯丝的较宽表面面向阳极电极。 四边形横截面从而增加了丝的下垂阻力。
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Patent Agency Ranking52.发明授权
公开(公告)号：US4283653A
公开(公告)日：1981-08-11
申请号：US076356
申请日：1979-09-17
Applicant: Jack Brett
Inventor： Jack Brett
CPC classification number: H01K1/14
Abstract: An incandescent lamp having a coating thereon which returns infrared energy to the filament to decrease the amount of power consumed by the lamp in order to maintain the filament at a predetermined operating temperature has a predetermined fractional spacing between turns which results in an emissivity greater than 0.5 at 2,000.degree. K. The filament also has a predetermined length to diameter ratio to make it compact and thereby improve its emissivity and the capture of the reflected infrared radiation and to reduce aberration losses. The filament can be a coiled coil or triple coiled coil and can be stabilized by secondary recrystallization.
Abstract translation: 一种其上具有涂层的白炽灯，其将红外能量返回到灯丝，以减少灯消耗的功率量，以将灯丝保持在预定的工作温度，在转弯之间具有预定的分数间隔，导致发射率大于0.5 在2000°K下，灯丝还具有预定的长度与直径的比例，使其紧凑，从而提高其发射率和捕获反射的红外辐射并减少像差损耗。 灯丝可以是线圈圈或三线圈圈，并且可以通过二次再结晶来稳定。
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公开(公告)号：US3806753A
公开(公告)日：1974-04-23
申请号：US32919873
申请日：1973-02-02
Applicant: PHILIPS CORP
Inventor： VAN WARMERDAM J
CPC classification number: H01J1/16
Abstract: In a reticulated grid cathode which has a flexible connection at one end to the conductor for the filament current present inside the cathode, the flexible connection consists of a number of thin metal strips of the same thickness. The strips constitute an approximately semi-circular arc and each consist of two strips of preferably the same thickness. In order to minimize the bending stress occurring in the strips, the diameter of the arc formed by the strips is chosen to be as large as possible relative to the radial dimensions of the cathode.
Abstract translation: 在网状阴极中，其一端具有与阴极内存在的灯丝电流的导体的一端的柔性连接，柔性连接由许多相同厚度的薄金属条构成。 条带构成大致半圆弧，并且每条由优选相同厚度的两条条组成。 为了最小化在条带中产生的弯曲应力，由条形成的电弧的直径被选择为尽可能大的相对于阴极的径向尺寸。
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54.发明授权
公开(公告)号：US3633062A
公开(公告)日：1972-01-04
申请号：US3633062D
申请日：1969-05-26
Applicant: ISE ELECTRONICS CORP
Inventor： TAMURA MITSURU
Abstract: In a direct-heated cathode electrode for use in electron guns wherein a heating element is mounted on a base to heat a cathode pellet which emits thermoions, a cathode shield maintained at the same potential as the heating element is disposed between the same and the base.
Abstract translation: 在用于电子枪的直接加热阴极中，其中加热元件安装在基座上以加热发射热分离的阴极丸粒，保持与加热元件相同电位的阴极屏蔽件设置在基底和基底之间 。
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公开(公告)号：US3631290A
公开(公告)日：1971-12-28
申请号：US3631290D
申请日：1970-08-17
Applicant: IBM
Inventor： LOEFFLER KARL H
Abstract: A thermionic cathode comprising a lanthanum hexaboride (LaB6) emitter and an emission current-intercepting plate made of rhenium containing an aperture disposed adjacent the emitter. The separation between the emitter and plate is set as small as possible without physical contact between them, typically 0.1 mm. The beam emitted through the aperture has high brightness and low energy spread. To prevent corrosion of the emitter it is housed in a cavity which is exposed to the vacuum of the apparatus only through the aperture.
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