公开(公告)号：US2808529A

公开(公告)日：1957-10-01

申请号：US42422654

申请日：1954-04-19

Applicant: SYLVANIA ELECTRIC PROD

Inventor： WHEELER WILLIAM R

IPC: H01J1/94

CPC classification number: H01J1/94

公开(公告)号：US11101096B2

公开(公告)日：2021-08-24

申请号：US15709426

申请日：2017-10-23

Applicant: Rad Source Technologies, Inc.

Inventor： Phillip Kent Ausburn

IPC: H01J35/08 ,  H01J35/06 ,  H01J1/40 ,  H01J1/16 ,  H01J35/32 ,  A61B6/00 ,  H01J35/18 ,  H01J1/94

Abstract: A high dose output, through transmission and reflective target x-ray tube and methods of use includes, in general an x-ray tube for accelerating electrons under a high voltage potential having an evacuated high voltage housing, a hemispherical shaped through and reflective transmission target anode disposed in said housing, a cathode structure to deflect the electrons toward the hemispherical anode disposed in said housing, a filament located in the geometric center of the anode hemisphere disposed in said housing, a power supply connected to said cathode to provide accelerating voltage to the electrons.

公开(公告)号：US10998161B2

公开(公告)日：2021-05-04

申请号：US15312948

申请日：2015-07-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuo Ohashi ,  Kazuyuki Ueda

IPC: H01J35/12 ,  H05G1/02 ,  H01J35/02 ,  H01J35/32 ,  H01J35/16 ,  H01J35/08 ,  H01J35/18 ,  H01J1/94 ,  H01J37/02 ,  G01N23/04

Abstract: A thickness of a bonding material (8) is varied in a radial direction orthogonal to a central axis (P) of the tubular anode member (6), the bonding material (8) being used for bonding a transmitting substrate (7) for supporting a target layer (9) and a tubular anode member (6) in a direction along the central axis (P). Thus, a region in which a circumferential tensile stress of the bonding material (8) is alleviated is formed in the direction along the central axis (P) to prevent a crack from developing in the bonding material (8).

公开(公告)号：US10109465B2

公开(公告)日：2018-10-23

申请号：US15533265

申请日：2015-11-20

Applicant: Seagate Technology LLC

Inventor： Romulo Ata ,  ZhaoHui Fan ,  Samuel Tanaka ,  Christopher Platt ,  Xiaoding Ma

IPC: H01J1/94 ,  H01J37/32 ,  H01K1/18 ,  C23C16/26 ,  C23C16/50

Abstract: A vapor deposition source that includes a substantially vertical plate to which first and second filament posts are coupled. The vapor deposition source also includes a filament having a first end and a second end. The filament provides a substantially concentric source of electrons. The first end of the filament is connected to the first filament post and the second end of the filament is connected to the second filament post. The first end of the filament is substantially vertically aligned with the second end of the filament when the filament is connected to the first and second posts.

公开(公告)号：US09984865B2

公开(公告)日：2018-05-29

申请号：US15025928

申请日：2014-10-29

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Akinori Asai ,  Naoya Matsumoto

IPC: H01J1/94 ,  H01J61/073 ,  H01J65/04 ,  H01J61/16

CPC classification number: H01J61/0737 ,  H01J1/94 ,  H01J61/0732 ,  H01J61/16 ,  H01J65/04

Abstract: In a light-emitting sealed body, a metal structure (electron emission structure) containing an easily electron-emitting material is used, so that it is not necessary to perform feeding for discharge between electrodes. Therefore, a feeding member does not need to be connected to the metal structure from the outside of a bulb. In addition, in the light-emitting sealed body, the metal structure is disposed in an internal space S of the bulb and a positioning unit of the metal structure is disposed only in the bulb. Therefore, in the light-emitting sealed body, the metal structure and the positioning unit do not penetrate the bulb and are not buried in the bulb and weakened portions are not formed in the bulb made of glass. Therefore, a sealing state of the bulb can be maintained surely.

公开(公告)号：US09355806B2

公开(公告)日：2016-05-31

申请号：US13945589

申请日：2013-07-18

Applicant: Schlumberger Technology Corporation

Inventor： Brian Umbach

IPC: H01J1/94 ,  H01J9/18 ,  H01J43/00 ,  H01J1/18 ,  H01J3/04 ,  H01J35/06 ,  H05H3/06 ,  H01J1/16 ,  H01J27/02 ,  H01J3/02

CPC classification number: H01J1/94 ,  H01J1/16 ,  H01J1/18 ,  H01J3/027 ,  H01J3/04 ,  H01J9/18 ,  H01J27/022 ,  H01J35/06 ,  H01J43/00 ,  H05H3/06

Abstract: A cathode assembly is for use in a radiation generator and includes an ohmically heated cathode, and a support having formed therein a hole and a recess at least partially surrounding the hole. In addition, there is a mount coupled to the support. The mount includes a larger outer frame positioned within the recess, a smaller inner frame carrying the ohmically heated cathode and spaced apart from the larger outer frame, and a plurality of members coupling the smaller inner frame to the larger outer frame.

Abstract translation: 阴极组件用于辐射发生器中并且包括欧姆加热的阴极，以及在其中形成有孔和至少部分地围绕孔的凹部的支撑件。 另外，还有一个联接在支架上的支架。 安装座包括位于凹槽内的较大外框架，承载欧姆加热阴极并与较大外框架间隔开的较小内框架，以及将较小内框架连接到较大外框架的多个构件。

公开(公告)号：US20090015126A1

公开(公告)日：2009-01-15

申请号：US10596712

申请日：2004-12-29

Applicant: Eric Gueusquin

Inventor： Eric Gueusquin

IPC: H01J1/94

CPC classification number: H01K1/18 ,  H05B3/0047 ,  H05B3/0066 ,  H05B2203/032

Abstract: The present invention relates to a lamp comprising a lamp vessel (101) having an inner diameter and an incandescent body (102) arranged in the lamp vessel and connected to current supply conductors (106). The lamp further comprises a filament (103) arranged around said incandescent body along at least half the length of said incandescent body, which filament has an outer diameter substantially equal to the inner diameter of the lamp vessel.

Abstract translation: 本发明涉及一种灯，其包括具有内径的灯容器（101）和布置在灯容器中并连接到电流供应导体（106）的白炽体（102）。 灯还包括沿着所述白炽体的至少一半的长度布置在所述白炽体周围的灯丝（103），所述灯丝的外径基本上等于灯容器的内径。

公开(公告)号：US06980734B2

公开(公告)日：2005-12-27

申请号：US10986237

申请日：2004-11-09

Applicant: Michael W. Halpin

Inventor： Michael W. Halpin

IPC: H05B3/06 ,  A21B1/00 ,  F24C7/00 ,  H01J1/94 ,  H01J1/98 ,  H01J19/42 ,  H01J19/48 ,  H01K1/18 ,  H01K1/24 ,  H01K3/00 ,  H01K5/02 ,  H01L21/205 ,  H01L21/26 ,  H05B3/00 ,  H05B3/44

CPC classification number: H01K1/24 ,  C23C16/481 ,  H01K1/18 ,  H01K3/00 ,  H01K5/02 ,  H05B3/0047

Abstract: An improved support is provided for locating a lamp filament axially within a lamp sleeve. The illustrated support is a spiral coil that includes a small diameter center portion that makes contact with the filament. On either side of the filament-contacting portion, the coil opens up to larger diameters for contacting the inner wall of the quartz sleeve within which the filament is housed. The support thus appears H-shaped when viewed from the side. A lamp filament is also provided with expansion compensation sections at either end of a central section. The filament wire in the compensation sections is wound into coils having a greater diameter and also a greater spacing between windings, as compared to coil in the central section. The expansion compensation sections are preferably capable of compressing and thereby absorbing thermal expansion of the filament during operation, without shorting the filament across adjacent windings.

公开(公告)号：US4820954A

公开(公告)日：1989-04-11

申请号：US135054

申请日：1987-12-18

Applicant: Sakae Kimura ,  Touru Yakabe ,  Mituo Kawai

Inventor： Sakae Kimura ,  Touru Yakabe ,  Mituo Kawai

IPC: H01J1/20 ,  H01J1/94

CPC classification number: H01J1/20

Abstract: An indirectly heated cathode structure for electron tubes comprises a cathode supporting sleeve, an electron emission section fitted on a part of the supporting sleeve, and a heater arranged inside the supporting sleeve, the supporting sleeve being an alloy containing niobium as a main component, more particularly more than 85 weight % of niobium. As an additive, at least one metal selected from titanium, zirconium, hafnium, vanadium, tantalum, molybdenum and tungsten is used.

公开(公告)号：US4789807A

公开(公告)日：1988-12-06

申请号：US91168

申请日：1987-08-31

Applicant: John R. Hale

Inventor： John R. Hale

IPC: H01J1/22 ,  H01J29/04 ,  H01J29/46 ,  H01J1/94

CPC classification number: H01J29/04

Abstract: An electron gun assembly for use in a CRT includes a pair of insulating support rods, at least one indirectly heated cathode disposed between the support rods, a heater for the cathode and an improved heater tab. The heater includes a pair of heater legs which are attached to the heater tab. Heater bead straps are provided for attaching the heater tab to the support rods. The electron gun also includes a plurality of electrodes for focusing and accelerating an electron beam generated by the cathode. The improved heater tab comprises a main body portion including a first and a second part. Each of the parts is attached to one of the heater legs. The heater tab has a pair of outwardly directed feet each of which is connected to one of the parts of the main body portion by a pair of substantially orthogonal legs extending therebetween. The heater tab includes reinforcing gussets extending between the parts of the main body portion and the legs and between the legs and the feet to maintain the rigidity of the heater tab.