公开(公告)号：EP0028954A1

公开(公告)日：1981-05-20

申请号：EP80401501.4

申请日：1980-10-22

Applicant: THOMSON-CSF

Inventor： Shroff, Arvind ,  Palluel, Pierre

IPC: H01J1/14 ,  H01J9/04 ,  H01J23/04

CPC classification number: H01J9/04 ,  H01J1/14 ,  H01J23/04

Abstract: La cathode selon l'invention est constituée d'une matrice frittée (1 ) et d'un filament chauffant (4), la dite matrice étant faite d'un mélange (2) de poudres de tungstène et d'un autre métal réfractaire à haut travail de sortie et recouverte d'un film (3) de métal réfractaire à haut travail de sortie.

公开(公告)号：EP4407066A1

公开(公告)日：2024-07-31

申请号：EP22872891.1

申请日：2022-09-20

Applicant: National Institute for Materials Science

Inventor： NAGAOKA Katsumi ,  AIZAWA Takashi ,  OHMI Shun-ichiro

IPC: C23C14/06 ,  B32B18/00 ,  B82Y30/00 ,  B82Y40/00 ,  C23C14/58 ,  C23C16/38 ,  H01J9/04 ,  H01J37/06

CPC classification number: B32B18/00 ,  B82Y30/00 ,  B82Y40/00 ,  C23C14/06 ,  C23C14/58 ,  C23C16/38 ,  H01J9/04 ,  H01J37/06

Abstract: The purpose of the present invention, relating to lanthanide boride, which is known as a low work function material, is to provide a novel low work function material with low chemical reactivity, in particular a low work function material of which the material surface, after being exposed to atmospheric gases, can be cleaned at a heating temperature lower than in the prior art. The present invention is a laminate containing a lanthanide boride film formed on a substrate, the surface of said film being covered by a thin film, wherein the thin film is a monatomic layer of a hexagonal boron nitride thin film.

公开(公告)号：EP1611591B1

公开(公告)日：2012-06-06

申请号：EP04713145.3

申请日：2004-02-20

Applicant: Koninklijke Philips Electronics N.V.

Inventor： XU, Paul, M. ,  AWAD, George ,  PERNO, Salvatore, G. ,  LU, Qing, K.

IPC: H01J35/06 ,  B23K20/16 ,  B23K35/00

CPC classification number: B23K1/0008 ,  B23K1/19 ,  H01J9/02 ,  H01J9/04 ,  H01J35/06

Abstract: An x-ray tube cathode assembly (28) includes a support arm (36) comprising a first metal. A ceramic insulator (70, 82) has a first metalized surface (72, 86) wherein the metalized surfaces comprise a desired amount of the first metal. A first member of filler material (90) is in contact with the support arm (36) and the first metalized surface (72, 86) of the ceramic insulator (70, 82), the first member of filler material comprising at least a second metal (96a, 96b) wherein a first alloy system (Fig. 5) comprising the first and second metals includes an alloy minimum point percentage composition (P) of the first and second metals having a first alloy system minimum melting point (M) for the alloy minimum point percentage composition that is lower than both of the melting point of the first metal and second metal. A bonding region resulting from heating the cathode assembly causing diffusion bonding to proceed, the bonding region has a layer of alloy comprising the minimum point percentage composition (P) and the heating of the cathode assembly continues to a bonding temperature of at least the first alloy system minimum melting point (M) and holding at that temperature for a desired period of time.

公开(公告)号：EP1803131A4

公开(公告)日：2011-11-02

申请号：EP05821231

申请日：2005-09-30

Applicant: XOFT INC

Inventor： LOVOI PAUL A ,  SMITH PETER C ,  LIM ALEX

IPC: H01B1/00 ,  A61N5/10 ,  H01B7/00 ,  H01J9/04 ,  H01J9/24 ,  H01J35/06 ,  H01J35/32

CPC classification number: A61N5/1001 ,  A61N5/1002 ,  H01J9/04 ,  H01J9/24 ,  H01J35/06 ,  H01J35/32 ,  H01J2235/02 ,  H01J2235/164

公开(公告)号：EP2174336A1

公开(公告)日：2010-04-14

申请号：EP08789362.4

申请日：2008-07-18

Applicant: Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

Inventor： TERLETSKA, Zoryana ,  HAUTTMANN, Stefan ,  HILKE, Bernd

IPC: H01J35/06 ,  H01J1/13 ,  H01J9/04

CPC classification number: H01J35/06 ,  H01J1/13 ,  H01J1/14 ,  H01J9/04 ,  H01J9/042

Abstract: A thermionic electron emitter (1) is proposed comprising an emitter part (2) with a substantially flat electron emission surface (3) and a bordering surface (5) adjacent thereto. In order to better absorb main stress loads (L) induced by external forces, the emitter part is provided with an anisotropic polycrystalline material having a crystal grain structure of elongated interlocked grains the longitudinal direction (G) of which is oriented substantially perpendicular to the direction (L) of the main stress loads occurring under normal operating conditions.

公开(公告)号：EP2146368A1

公开(公告)日：2010-01-20

申请号：EP08160467.0

申请日：2008-07-15

Applicant: BARCO N.V.

Inventor： Van den Bossche, Bart

IPC: H01J61/52 ,  H01J61/073 ,  H01J9/02

CPC classification number: H01J61/0732 ,  H01J9/04 ,  H01J61/526

Abstract: The invention relates to a gas discharge lamp (1) system and to a method for manufacturing an electrode (3) of a gas discharge lamp. According to the invention, at least one electrode (3) of the gas discharge lamp (1) is designed as a heat pipe. This provides for a very efficient and easy to use possibility of cooling the electrode (3).

Abstract translation: 本发明涉及一种气体放电灯（1）系统和一种制造气体放电灯电极（3）的方法。 根据本发明，气体放电灯（1）的至少一个电极（3）被设计为热管。 这提供了冷却电极（3）的非常有效且易于使用的可能性。

公开(公告)号：EP1359599A3

公开(公告)日：2007-09-19

申请号：EP02080322.7

申请日：2002-12-17

Applicant: FEI COMPANY

Inventor： Schwind, Gregory A. ,  Jun, David S. ,  Magera, Gerald G.

IPC: H01J9/04 ,  H01J1/14

CPC classification number: H01J1/14 ,  H01J9/04 ,  H01J37/073 ,  H01J2237/06316

Abstract: An electron emitter is produced by applying a work function lowering material that does not require an extensive heating step before the material will function to lower the work function. By eliminating the extensive heating step, a small radius, highly tapered emitter tip will retain its shape to consistently produce a high angular intensity at a reasonable output power level.

公开(公告)号：EP1810316A2

公开(公告)日：2007-07-25

申请号：EP05796912.3

申请日：2005-10-28

Applicant: Koninklijke Philips Electronics N.V.

Inventor： HUCK, Nina ,  HOUET, Erik, J., M.

IPC: H01J61/073 ,  H01J9/02

CPC classification number: H01J61/0732 ,  H01J9/02 ,  H01J9/04 ,  H01J61/0735

Abstract: The invention relates to a discharge lamp comprising a sealed transparent bulb accommodating two electrodes, wherein at least one of said electrodes has at least a porous portion comprising first particles with a first mean particle size (µ1) defined by a first particle size distribution (11) and second particles (20) with a second mean particle size (µ2) defined by a second particle size distribution (21). The first mean particle size (µ1) is smaller than said second mean particle size (µ2). Consequently, an electrode portion with a higher porosity and a longer lifetime is obtained.

公开(公告)号：EP1603149A1

公开(公告)日：2005-12-07

申请号：EP04719075.6

申请日：2004-03-10

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： OGINO, Yuichiro ,  MINO, Yoshimitsu ,  KIKUCHI, Akio ,  UENO, Hironobu

IPC: H01J9/04

CPC classification number: H01J61/0732 ,  H01J9/04 ,  H01J61/86

Abstract: In a discharge lamp manufacturing method according to which a pair of electrodes is formed by fusion cutting a predetermined part of a tungsten rod (16) disposed within a sealed arc space, the fusion cutting of tungsten rod (16) for forming a pair of electrodes is executed with the entire arc-tube part heated to a temperature at which at least an arc material that includes mercury (118) enclosed within the arc tube evaporates. This allows for the arc material within the arc space to evaporate sufficiently, and for the adhesion, to the inner wall of the arc tube, of tungsten electrode material that evaporates due to the fusion cutting by laser beam to be suppressed.

Abstract translation: 在放电灯制造方法中，通过熔融切割设置在密封电弧空间内的钨棒（16）的预定部分形成一对电极，在形成一对电极的钨棒（16）的熔融切割中， 执行整个电弧管部分被加热到至少包括封闭在电弧管内的汞（118）的电弧材料蒸发的温度。 这允许电弧空间内的电弧材料充分蒸发，并且为了粘附到电弧管的内壁，由于要被抑制的激光束的熔合切割而蒸发的钨电极材料。

公开(公告)号：EP1435398A4

公开(公告)日：2005-01-26

申请号：EP02800792

申请日：2002-10-09

Applicant: TOSHIBA KK

Inventor： TANAKA TAKASHI ,  SAKAI MOTOHISA ,  NAKANO YASUHIKO ,  SUGANOMATA KAN ,  ESAKI MOTOAKI ,  NAKANO KAYO

IPC: B21B1/18 ,  B21B3/00 ,  B21B15/00 ,  B21C1/00 ,  B21C37/04 ,  B22F5/12 ,  C22C1/04 ,  C22C27/04 ,  H01J1/14 ,  H01J1/146 ,  H01J1/22 ,  H01J9/04 ,  H01J9/08 ,  H01K1/02 ,  H01K3/02 ,  B21J5/06 ,  B22F3/24 ,  H01J35/06 ,  H01K1/08

CPC classification number: H01J1/146 ,  B21B1/18 ,  B21B15/0035 ,  B21B2003/006 ,  B21B2015/0028 ,  B21C1/003 ,  B21C37/045 ,  B22F5/12 ,  B22F2998/10 ,  C22C1/045 ,  C22C27/04 ,  H01J1/14 ,  H01J1/22 ,  H01J9/04 ,  H01J9/08 ,  H01J2201/2889 ,  H01K1/02 ,  H01K3/02 ,  B22F3/10 ,  B22F3/18 ,  B22F3/17 ,  B22F3/20

Abstract: A tungsten wire containing 1-10 mass% of rhenium, characterized in that the point showing 2% expansion of a heated tungsten wire having a diameter of x µm and heated by application of a current of which the ratio to the fusing current (FC) of the tungsten wire of x µm diameter is y% is within the quadrilateral defined by connecting point (20, 75), point (20, 87), point (90, 75), and point (90, 58) by straight lines in a semilogarithmic coordinate system in which point (x, y) is shown, of which the horizontal axis is marked with a logarithmic scale of diameter x, and of which the vertical axis is marked with an ordinary scale of the ratio y to the fusing current. The tungsten wire expands greatly even under high-temperature condition, exhibits excellent durability when used as a constituent material of, e.g., a cathode heater and can be produced efficiently.