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公开(公告)号：EP1766649A4
公开(公告)日：2008-12-10
申请号：EP05857890
申请日：2005-07-12
Applicant: UNIV ILLINOIS
Inventor： PARK KYUNG-HO , EDEN J GARY , PARK SUNG-JIN
CPC classification number: H01J1/025 , B82Y10/00 , H01J3/025 , H01J17/066 , H01J63/02 , H01J2201/30469 , H01J2217/49
Abstract: Field emission nanostructures (18) assist operation of a microdischarge device. The field emission nanostructures are integrated into the microdischarge device(s) or are situated near an electrode (14, 16, 36, 38) of the microdischarge device(s). The field emission nanostructures reduce operating and ignition voltages compared to otherwise identical device lacking the field emission nanostructures, while also increasing the radiative output of the microdischarge device(s).
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公开(公告)号：EP0732719B1
公开(公告)日：2000-12-20
申请号：EP96103215.8
申请日：1996-03-01
Applicant: OSRAM SYLVANIA INC.
Inventor： Schoenback, Karl H. , Peterkin, Frank E. , Byszewski, Wojciech W. , Dharamsi, Amin N.
CPC classification number: H01J3/025 , H01J1/025 , H01J3/04 , H01J17/04 , H01J17/06 , H01J27/08 , H01J61/067 , H01J61/09 , H01J61/12 , H01J61/305 , H01J61/66 , H01J61/72 , H01J61/78 , H01S3/03 , H01S3/0382 , H01S3/0385 , H01S3/2383
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公开(公告)号：EP0278494B1
公开(公告)日：1995-08-16
申请号：EP88101960.8
申请日：1988-02-10
CPC classification number: C23C14/28 , H01J1/025 , H01J37/3053
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公开(公告)号：EP0278494A3
公开(公告)日：1990-05-02
申请号：EP88101960.8
申请日：1988-02-10
CPC classification number: C23C14/28 , H01J1/025 , H01J37/3053
Abstract: A hollow cathode gun used in the ion plating through HCD process comprises a hollow cathode (2) consisting of an outer graphite layer (3) and an inner Ta, W or LaB₆ layer (4). A deposition device using the above hollow cathode gun comprises at least one crucible housing an evaporation material, a substrate and a reaction gas inlet, and is provided with a focusing coil surrounding the outer layer of the hollow cathode and another focusing coil surrounding the crucible.
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公开(公告)号：EP2994556A1
公开(公告)日：2016-03-16
申请号：EP14788120.5
申请日：2014-04-28
Applicant: Colorado State University Research Foundation , Rand, Lauren P. , Williams, John D. , Martinez, Rafael A.
Inventor： RAND, Lauren P. , WILLIAMS, John D. , MARTINEZ, Rafael A.
IPC: C23F1/00
CPC classification number: H01J1/025 , F03H1/0068 , H01J1/14 , H01J27/08 , H01J27/146 , H01J2237/08
Abstract: The use of the electride form of 12CaO-7Al
2 O
3 , or C12A7, as a low work function electron emitter in a hollow cathode discharge apparatus (10) is described. No heater is required to initiate operation of the present cathode (12), as is necessary for traditional hollow cathode devices. Because C12A7 has a fully oxidized lattice structure, exposure to oxygen does not degrade the electride. The electride was surrounded by a graphite liner (18) since it was found that the C12A7 electride converts to it's eutectic (CA+C3A) form when heated (through natural hollow cathode operation) in a metal tube.-
Patent Agency Ranking
公开(公告)号：EP1849180A2
公开(公告)日：2007-10-31
申请号：EP06849677.7
申请日：2006-01-24
Inventor： EDEN, J. Gary , CHEN, Kuo-Feng , OSTROM, Nels, P. , PARK, Sung-Jin
IPC: H01J61/04
CPC classification number: H01J61/09 , H01J1/025 , H01J9/02 , H01J17/066 , H01J37/32018 , H01J37/32596 , H01J65/046
Abstract: A method for fabricating microcavity discharge devices and arrays of devices. The devices are fabricated by layering a dielectric (1020, 220) on a first conducting layer or substrate (210, 1010). A second conducting layer or structure is overlaid on the dielectric layer. In some devices, a microcavity (1040, 212) is created that penetrates the second conducting layer or structure and the dielectric layer. In other devices, the microcavity penetrates to the first conducting layer. The second conducting layer or structure together with the inside face of the microcavity is overlaid with a second dielectric layer. The microcavities are then filled with a discharge gas. When a time- varying potential of the appropriate magnitude is applied between the conductors, a microplasma discharge is generated in the microcavity. These devices can exhibit extended lifetimes since the conductors are encapsulated, shielding the conductors from degradation due to exposure to the plasma. Some of the devices are flexible and the dielectric can be chosen to act as a mirror.
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公开(公告)号：EP1020887A2
公开(公告)日：2000-07-19
申请号：EP00109547.0
申请日：1996-03-01
Applicant: OSRAM SYLVANIA INC.
Inventor： Schoenback, Karl H. , Peterkin, Frank E. , Byszewski, Wojciech W. , Dharamsi, Amin N.
IPC: H01J1/02
CPC classification number: H01J3/025 , H01J1/025 , H01J3/04 , H01J17/04 , H01J17/06 , H01J27/08 , H01J61/067 , H01J61/09 , H01J61/12 , H01J61/305 , H01J61/66 , H01J61/72 , H01J61/78 , H01S3/03 , H01S3/0382 , H01S3/0385 , H01S3/2383
Abstract: The invention is directed to a discharge device and a cathode for use in such a discharge device.
By providing a dielectric layer between a first and a second electrode, e.g. between a cathode and an anode, said dielectric layer having an opening aligned with a micro hollow of the first electrode, the light efficiency of the discharge device can be improved.Abstract translation: 本发明涉及用于这种放电装置的放电装置和阴极。 通过在第一和第二电极之间提供介电层，例如， 在阴极和阳极之间，所述介电层具有与第一电极的微小空心对准的开口，可以提高放电装置的光效率。
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公开(公告)号：EP0896352A1
公开(公告)日：1999-02-10
申请号：EP98305571.6
申请日：1998-07-14
Applicant: Smiths Industries Public Limited Company
Inventor： Beardmore, Geoffrey
IPC: H01J1/02
Abstract: A gas discharge lamp has a tubular envelope (1) containing tubular electrodes (30) at opposite ends. An annular support member (40) of a compressible ceramic fibre is supported in a groove (33) around each electrode and is compressed against the inside surface of the envelope. Movement of the electrodes (30) relative to the envelope (1) is damped by the support member (40).
Abstract translation: 气体放电灯具有在相对端包含管状电极（30）的管状外壳（1）。 可压缩陶瓷纤维的环形支撑构件（40）被支撑在围绕每个电极的凹槽（33）中并被压靠在外壳的内表面上。 电极（30）相对于外壳（1）的移动被支撑构件（40）阻尼。
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29.发明公开Hollow cathode gun and deposition device for ion plating process 失效Hohlkathodenkanone和Vorrichtung zur Materialablagerung durch Ionenbeschichtung。
公开(公告)号：EP0278494A2
公开(公告)日：1988-08-17
申请号：EP88101960.8
申请日：1988-02-10
CPC classification number: C23C14/28 , H01J1/025 , H01J37/3053
Abstract: A hollow cathode gun used in the ion plating through HCD process comprises a hollow cathode (2) consisting of an outer graphite layer (3) and an inner Ta, W or LaB₆ layer (4). A deposition device using the above hollow cathode gun comprises at least one crucible housing an evaporation material, a substrate and a reaction gas inlet, and is provided with a focusing coil surrounding the outer layer of the hollow cathode and another focusing coil surrounding the crucible.
Abstract translation: 用于通过HCD工艺进行离子镀的中空阴极枪包括由外部石墨层（3）和内部Ta，W或LaB 6层（4）组成的空心阴极（2）。 使用上述中空阴极枪的沉积装置包括容纳蒸发材料，基底和反应气体入口的至少一个坩埚，并且设置有围绕中空阴极的外层的聚焦线圈和围绕坩埚的另一聚焦线圈。
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公开(公告)号：US12078154B1
公开(公告)日：2024-09-03
申请号：US16153297
申请日：2018-10-05
Inventor： Kunning Gabriel Xu , Ryan Patrick Gott
CPC classification number: F03H1/0087 , B64G1/405 , F03H1/0018 , H01J1/025
Abstract: The present disclosure generally pertains to devices and methods for generating thrust in vehicles, for instance in space applications. A heaterless, insertless hollow cathode utilizes AC and pulsed DC electric fields to ionize the propellant gas and generate a plasma plume. The cathode uses an argon microplasma generated in a quartz tube with a tungsten filament and brass ion collector. Free electrons are then drawn from the plasma plume and supplied to a thruster engine.
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