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公开(公告)号：AU8125194A
公开(公告)日：1995-05-22
申请号：AU8125194
申请日：1994-10-26
Applicant: UNIV CALIFORNIA
Inventor： MULLER RICHARD S , MASTRANGELO CARLOS M , WILLIAMS KIRT R
IPC: G01J3/10 , G01P15/08 , G03F7/00 , H01J3/00 , H01J5/00 , H01J9/02 , H01J21/10 , H01J61/30 , H01K1/04 , H01K1/12 , H01K1/28 , H01K3/00 , H01K7/04 , H01K13/00 , H01K1/50
Abstract: A surface and/or bulk micromachined hermetically sealed cavity containing at least one suspended structure in a low pressure ambient, and the associated fabrication method. The cavity is bounded by a thin-film membrane and a substrate which may have a recess. The method can be used for the production, for example, of thermionic-emission vacuum tubes, gas filled tubes and electromechanical devices. In vacuum tubes the cathode is a suspended refractory filament. Other electrodes may also be suspended. In electromechanical devices the suspended members may be cantilever beams capable of low friction motion.
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公开(公告)号：GB9213911D0
公开(公告)日：1992-08-12
申请号：GB9213911
申请日：1992-06-30
Applicant: JUPITER TOY CO
Abstract: Apparatus is described comprising a combination of: an envelope 532 having a solid dielectric interior wall and an inert gas therein; and first, second and third electrodes 534, 536, 538 outside the wall. The envelope is divided into first and second chambers connected in fluid flow relation with each other by a neck 540 in the dielectric interior wall, and the pressure in the second chamber and the neck is such that the second chamber is at a lower pressure than the first chamber. The electrodes 534, 538 outside the wall are respectively capacitively coupled to regions of the first and second chambers remote from the neck through the dielectric wall, and the electrode 536 outside of the wall is capacitively coupled to the neck through the dielectric wall. A voltage is applied between the first and third electrodes to provide a discharge in the first chamber between the first and third electrodes, a voltage being applied between the first and second electrodes to cause charged particles in the discharge to be accelerated through the neck and the second chamber to the second electrode.
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公开(公告)号：DE3680576D1
公开(公告)日：1991-09-05
申请号：DE3680576
申请日：1986-05-07
Applicant: TOSHIBA KAWASAKI KK
Inventor： TAKENAKA SHIGEO C O PATENT DIV , KAMOHARA EIJI C O PATENT DIVIS , NISHIMURA TAKASHI C O PATENT D
Abstract: In a color cathode ray tube, a vacuum envelope is provided with a plurality of necks and a plurality of funnels for coupling the respective neck to a single panel. A plurality of electron gun assemblies are received in the neck, respectively and a plurality of deflection yokes are mounted around the funnels, respectively. A screen is formed on the inner surface of the faceplate of the panel and is defined by a plurality of continuous segment regions each of which is scanned with electron beams from the corresponding electron gun assembly and deflected by corresponding deflection yoke. A shadow mask is received in the panel and is faced to the screen. The shadow mask has a plurality of effective row and column regions corresponding to the segment regions and a noneffective region for surrounding and partitioning the respective segment regions.
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公开(公告)号：FR2639471A1
公开(公告)日：1990-05-25
申请号：FR8801310
申请日：1988-02-04
Applicant: JUPITER TOY CO
Inventor： SHOULDERS KENNETH R
Abstract: Apparatus is described comprising a combination of: an envelope 532 having a solid dielectric interior wall and an inert gas therein; and first, second and third electrodes 534, 536, 538 outside the wall. The envelope is divided into first and second chambers connected in fluid flow relation with each other by a neck 540 in the dielectric interior wall, and the pressure in the second chamber and the neck is such that the second chamber is at a lower pressure than the first chamber. The electrodes 534, 538 outside the wall are respectively capacitively coupled to regions of the first and second chambers remote from the neck through the dielectric wall, and the electrode 536 outside of the wall is capacitively coupled to the neck through the dielectric wall. A voltage is applied between the first and third electrodes to provide a discharge in the first chamber between the first and third electrodes, a voltage being applied between the first and second electrodes to cause charged particles in the discharge to be accelerated through the neck and the second chamber to the second electrode.
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公开(公告)号：GB2218257A
公开(公告)日：1989-11-08
申请号：GB8810912
申请日：1988-05-09
Applicant: JUPITER TOY CO
Inventor： SHOULDERS KENNETH R
IPC: H01J3/00
Abstract: Disclosed are many different arrangements in which, in a vacuum of gas-filled enclosure by pulsing a cathode with respect to an anode or counter electrode, there is generated from the discharge therebetween high electrical charge density entities, called EV's in the space patton which comprise discrete, self-contained, negatively charged bundles of electrons. In the channel cource 900 shown, Figs 62 and 63, for generating EV's a ceramic base 901 has a guide channel 903 therein in which cathode 902 is located and successive dynodes 905 are provided underlying the channel 903 with a counter electrode 906 on the opposite side of the base to the channel. Cathode 902 may be replaced with a photon source and a distributed resistor 904 may underlie the channel. In operation, the charge density provided by the initial electron source is multiplied by the successive dynodes, eg with gains of 10 , until it reaches the critical level for forming an EV. The EV, once formed, is constrained to follow the channel guide. The dynodes may comprise metal covered with a thin dielectric layer such as Al2O3 doped with W or Mo. Many different devices utilizing the EV's so generated are disclosed. For example, fig 67 shows an RF generator comprising a guide channel 993 in a dielectric base of serpentine form such that an EV introduced at 991 at constant velocity and constrained to follow the guide emits RF radiation whose duration, frequency and harmonic content is controlled by the shape of the guide. A circulator for RF energy, Figs 65 and 66 (not shown), which can store the RF energy generated, is also disclosed. Other devices disclosed which utilise the EV'S includes flat panel displays, deflection switches, charge storage on memory devices, stepping registers and anologue to digital encoders.
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Patent Agency Ranking
公开(公告)号：DK156347B
公开(公告)日：1989-08-07
申请号：DK291484
申请日：1984-06-14
Applicant: ERICSSON TELEFON AB L M
Inventor： SCUKA VIKTOR , AAKERLUND JOHN
Abstract: PCT No. PCT/SE83/00349 Sec. 371 Date May 18, 1984 Sec. 102(e) Date May 18, 1984 PCT Filed Oct. 10, 1983 PCT Pub. No. WO84/01673 PCT Pub. Date Apr. 26, 1984.An overvoltage protector in an apparatus having two moving parts (1,5). The parts are connected via a bearing (2,3,4), one part being stationary in relation to a substructure (13) at an electrical ground potential. The moving part (5) can be subjected to a voltage and the stationary part (1) is electrically connected to the grounded substructure. For preventing current from passing through the bearing between the parts, an electrical insulator (6,7) is provided in the current path which can occur through the bearing as a result of different potentials of the parts. The moving part (5) has a ring (9) spaced from a ring (8) connected to electrical ground such that a spark discharge gap (10) is formed between the parts. The bearings (2,3,4) are protected against current flow by the electrical insulator (6,7) up to a given voltage threshold. In order that this voltage threshold will not be exceeded, the spark discharge gap (10) comes into operation at a lower value than this voltage threshold and keeps the voltage difference between the parts at this lower value.
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公开(公告)号：NL8800190A
公开(公告)日：1989-08-01
申请号：NL8800190
申请日：1988-01-27
Applicant: JUPITER TOY CO
Abstract: Apparatus is described comprising a combination of: an envelope 532 having a solid dielectric interior wall and an inert gas therein; and first, second and third electrodes 534, 536, 538 outside the wall. The envelope is divided into first and second chambers connected in fluid flow relation with each other by a neck 540 in the dielectric interior wall, and the pressure in the second chamber and the neck is such that the second chamber is at a lower pressure than the first chamber. The electrodes 534, 538 outside the wall are respectively capacitively coupled to regions of the first and second chambers remote from the neck through the dielectric wall, and the electrode 536 outside of the wall is capacitively coupled to the neck through the dielectric wall. A voltage is applied between the first and third electrodes to provide a discharge in the first chamber between the first and third electrodes, a voltage being applied between the first and second electrodes to cause charged particles in the discharge to be accelerated through the neck and the second chamber to the second electrode.
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公开(公告)号：DE3803737A1
公开(公告)日：1989-07-20
申请号：DE3803737
申请日：1988-02-08
Applicant: JUPITER TOY CO
Inventor： SHOULDERS KENNETH R
Abstract: Disclosed are many different arrangements in which, in a vacuum or gas-filled enclosure, a cathode 12, Figs 1 and 2, is pulsed with respect to an anode 14 in order to generate from the discharge therebetween high electrical charge density entities, called EV's in the specification, which comprise discrete, self-contained, negatively charged bundles of electrons. Preferably a dielectric surface 10 is provided between the anode and cathode to provide a surface along which the discharge entity propagates. Further electrodes may be provided to control the EV. The cathode may be pointed, as shown, to operate by field emission and may be formed of Cu or Ag wetted with Hg, with a small Hg resevoir incorporated in the electrode, Figs. 5 and 6 (not shown). Instead of planer geometry the device may be cylindrically symmetric, Fig. 3, with anode 24 spaced 1 mm from cathode 22 at opposite ends of glass tube 34. With a gas pressure of a few bar or a vacuum of 10 bar, EV's may be produced by applying 2KV pulses of 0.1 mu sec divation to the cathode. Other cathode materials and constructions are disclosed and arrangements for separating, guiding (eg. capacitance, inductance, gaseous or optical guides), launching, selecting, splitting and deflecting EV's are detailed. Embodiments utilising EV's in devices such as oscilloscopes, display tubes, electrodeless tubes, travelling wave tubes, pulse generators, X-ray sources, electron sources and RF sources are also disclosed.
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公开(公告)号：DE3370235D1
公开(公告)日：1987-04-16
申请号：DE3370235
申请日：1983-12-13
Applicant: CGR MEV
Inventor： LEBOUTET HUBERT , AUCOUTURIER JEANNE
Abstract: The invention relates to an electron gun for a linear accelerator, able to supply a modulated electronic current for injection into an accelerating structure. Such an electron gun comprises a cavity resonator in which a cathode and a grid define a grid-cathode space, on which is closed said cavity resonator. An electromagnetic wave injected into said cavity resonator defines, with the grid and the cathode, an alternating potential difference by which the electronic current is modulated. The invention more particularly applies to industrial irradiation machines.
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公开(公告)号：SU736209A1
公开(公告)日：1980-05-25
申请号：SU2648460
申请日：1978-07-21
Applicant: SHCHAVELEV LEONID N , VINOGRADOV VLADIMIR A , KIRILENKO VASILIJ , YUDIN ANATOLIJ N
Inventor： SHCHAVELEV LEONID N , VINOGRADOV VLADIMIR A , KIRILENKO VASILIJ , YUDIN ANATOLIJ N
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