Hollow Shield Around Filament Or Cathode Patents (Class 313/38)
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Patent number: 11658186Abstract: The present disclosure provides an array substrate, including: a base, and at least one lead structure disposed on the base. The lead structure includes a first conductive structure and a conductive semiconductor structure, and an orthographic projection of the conductive semiconductor structure on the base at least partially overlaps an orthographic projection of the first conductive structure on the base.Type: GrantFiled: August 1, 2019Date of Patent: May 23, 2023Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Hongfei Cheng
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Patent number: 11231799Abstract: A touch display device includes a touch sensing electrode and a touch drive electrode disposed on an encapsulation unit configured to encapsulate a light-emitting element, the touch sensing electrode and the touch drive electrode being configured to form a first mutual capacitor, and first and second compensation electrodes disposed in a non-active area of a substrate so as to be opposite each other, the first and second compensation electrodes being configured to form a second mutual capacitor, whereby the value of capacitance of all mutual capacitors is increased, and therefore it is possible to prevent deterioration in touch performance.Type: GrantFiled: July 7, 2020Date of Patent: January 25, 2022Assignee: LG DISPLAY CO., LTD.Inventors: Ru-Da Rhe, Ji-Hyun Jung, Deuk-Su Lee, Sang-Kyu Kim, Jae-Gyun Lee, Hyang-Myoung Gwon
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Light source incorporating a high temperature ceramic composite and gas phase for selective emission
Patent number: 8044567Abstract: A light source includes a base, a light-transmissive envelope coupled to the base, a composition disposed within the light-transmissive envelope, and a gas phase contained by the envelope for suppressing vaporization of the composition at operating temperatures greater than about 2000 Kelvin. The composition includes a first region and a second region and operable to suppress or reflect photons having a wavelength greater than about 700 nm and to emit or transmit photons having a wavelength between about 400 nm and about 700 nm.Type: GrantFiled: March 31, 2006Date of Patent: October 25, 2011Assignee: General Electric CompanyInventors: Timothy John Sommerer, Peter Joel Meschter, Vikas Midha, William Paul Minnear, David Jeffrey Bryan -
Patent number: 8040035Abstract: A method of producing a cathode for use in an x-ray tube assembly is provided including machining an emission aperture into a cup emission surface portion of a cup structure. The cup structure is comprised of a cup base portion opposite the cup emissions surface portion. Electro-discharge machining is used to form an electro-discharge machining slot into the cup structure to provide access to the interior of the cup structure. Electro-discharge machining is used to form a transverse coil chamber within the interior by way of the electro-discharge machining slot such that the transverse coil chamber is formed between the cup base portion and the cup emissions surface portion while retaining an essentially contiguous emissions surface perimeter surrounding the emission aperture.Type: GrantFiled: July 1, 2009Date of Patent: October 18, 2011Assignee: General Electric CompanyInventor: Sergio Lemaitre
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Patent number: 7759849Abstract: A laser excitation lamp has a discharge tube and a hot cathode in the shape of a pin. The gas space is reduced in the region of the pin cathode. A method is also provided for production of the lamp, in which the gas space or the free cross section around the cathode is reduced by another processing step. The laser excitation lamp may be used as a pumping light source for lasing media.Type: GrantFiled: October 17, 2005Date of Patent: July 20, 2010Assignee: Heraeus Noblelight Ltd.Inventors: Jeremy Woffendin, Uwe Krönert
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Publication number: 20100072873Abstract: A hot-cathode fluorescent lamp includes a pair of filament coils (4) at the respective ends of a glass bulb. Each filament coil (4) has a coiled portion (4a) coated with an electron emissive material, a first lead portion (4b) extending from one end of the coiled portion (4a), and a second lead portion (4c) extending from another end of the coiled portion (4a). The first lead portion (4b) and the second lead portion (4c) are connected to lead-in wires inserted into the glass bulb via connecting members (5a, 5b). At least one insulating member (11a or 11b) is provided between closest edges of the connecting members (5a, 5b) to each other. The provision of the insulating member prevents a short circuit occurring between the closest edges of the plate-shaped connecting members during lighting. Occurrence of such a short circuit would cause lighting to start without the coil portion being sufficiently pre-heated, which results in excessive sputtering of the electron emissive material to shorten the lamp life.Type: ApplicationFiled: November 2, 2007Publication date: March 25, 2010Inventors: Shiro Otake, Teruaki Shigeta, Takeshi Arakawa, Nobuhiro Shimizu
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Patent number: 7189979Abstract: An electron gun includes a cathode portion which emits electrons, an anode portion which accelerates the emission electrons, a bias portion which is arranged between the cathode portion and the anode portion and controls trajectories of the emission electrons, a shielding portion which is arranged below the anode portion and shields some of the emission electrons, and a cooling portion which cools the shielding portion. The bias portion controls the trajectories of the electrons so as to form a crossover between the bias portion and the anode portion, and prevents the electrons from emitting on the anode portion.Type: GrantFiled: April 13, 2004Date of Patent: March 13, 2007Assignees: Canon Kabushiki Kaisha, Hitachi High-Technologies CorporationInventors: Masahiko Okunuki, Hiroya Ohta
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Patent number: 6989634Abstract: A magnetron cathode assembly which realizes stopping of turn of an external terminal inserted into a stem insulator without increasing a manufacturing cost. A leading end of a base end axial portion of an external terminal has a non-circular section by providing a flat surface in at least one position on its peripheral surface, and a straight stop edge that fits to the flat surface thereby to carry out stopping of turn of the external terminal is provided for a terminal fitting hole of a sealing metal plate into which the leading end of this external terminal is fitted.Type: GrantFiled: December 30, 2003Date of Patent: January 24, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Etsuo Saitou, Takeshi Ishii, Masanori Yoshihara, Hideki Ohguri, Toshiyuki Tsukada
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Publication number: 20040256966Abstract: A liquid crystal panel comprises an active matrix substrate, an opposing substrate facing the active matrix substrate, and a liquid crystal layer disposed between the active matrix substrate and the opposing substrate. On the active matrix substrate, a plurality of parallel signal lines and a plurality of parallel scanning lines are arranged for forming a matrix of pixels called an active area. A plurality of pads are formed in outer-lead bonding areas located on the periphery of the active area, and are used for mounting driving devices. Each of the OLB areas is separately connected to one of fan-out areas including a plurality of leads. Each compensation capacitor with a predetermined capacitance is connected to each lead so as to minimize variation of RC delay effect between all leads.Type: ApplicationFiled: June 18, 2003Publication date: December 23, 2004Inventors: Lee Deuk Su, Chung Te-Cheng, Ming Tien Lin, Chia Te Liao
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Patent number: 6696790Abstract: A magnetron including a tubular metallic container which is air-tightly connected to an anode, cathode leads for supporting a cathode with filaments being disposed in a central axial portion of the anode, a stem insulator formed with through holes through which the cathode leads pass, and external terminals formed with planar portions which are air-tightly connected to a surface of the stem insulator opposite to a surface facing the tubular metallic container and with connecting portions which are air-tightly connected to the cathode leads. The connecting portions are arranged to be bent in an axial direction of the cathode leads. It is possible to exhibit the effect of preventing vacuum break from occurring by oxidation or the like since the increase in the area of the connecting portions will result in elongation of the distance between the end portions of the connecting portions and the through holes.Type: GrantFiled: May 28, 2002Date of Patent: February 24, 2004Assignee: Sanyo Electric Co., Ltd.Inventors: Noriyuki Murao, Kazuki Miki, Setsuo Hasegawa, Noriyuki Okada, Satoshi Nakai
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Patent number: 5466988Abstract: A high pressure discharge lamp is disclosed. The high pressure discharge lamp includes: a discharge tube which is filled with gas; a first electrode having a first end, the first electrode being provided in the discharge tube; and a second electrode having a second end which is positioned away from the first end by a certain distance, the second electrode being provided in the discharge tube. In the high pressure discharge lamp, arc discharge is induced by a voltage applied between the first end of the first electrode and the second end of the second electrode. The high pressure discharge lamp further includes a convection regulating member which is electrically insulating and provided in the discharge tube. The convection regulating member suppresses the deformation of the arc discharge caused by the convection of the gas in the discharge tube.Type: GrantFiled: May 7, 1993Date of Patent: November 14, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Makoto Horiuchi, Kazutaka Koyama, Takayuki Kamitani, Masataka Ozawa
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Patent number: 5107166Abstract: In a traveling wave tube, an electron beam collector and an electrically insulating cylinder having good thermal conductivity and dielectric strength are arranged in a bore of a cooling housing to improve heat elimination from the electron beam collector. The cylinder is deformable in a radial direction, is of an elastic material, and is dimensioned so that it fixes the electron beam collector in the bore of the housing with a tight fit.Type: GrantFiled: September 11, 1989Date of Patent: April 21, 1992Assignee: Siemens AktiengesellschaftInventors: Josef Hauser, Peter Mammach
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Patent number: 4807824Abstract: This invention provides an improved web transfer mechanism in a paper roll towel dispenser of the type having a primary roll and a reserve roll of paper toweling. The transfer mechanism comprises a cradle for supporting the primary roll that is counterbalanced by an element for tucking the leading end of the reserve roll into the nip between feed rollers. As the primary roll becomes depleted, the counterbalancing force of the roll decreases, causing the tucking element to gradually approach the leading end of the reserve roll until the element finally engages the end and introduces it into the nip. In a preferred embodiment, the device includes a damper mechanism to prevent premature introduction of the leading end caused by the tendency of the primary roll to rise above the cradle by a sudden pull on the toweling.Type: GrantFiled: June 27, 1988Date of Patent: February 28, 1989Assignee: James River II, Inc.Inventors: Oliver B. Gains, Jack L. Perrin, Council A. Tucker
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Patent number: 4524296Abstract: A cathode structure includes a thermal conductive member, a heater for heating a thermal conductive member, a metal substrate having a first surface facing a thermal conductive member and a second surface and attached to the thermal conductive member to form a space between a central portion of a second surface and the thermal conductive member, and an electron emitting member provided on a second surface of a metal substrate.Type: GrantFiled: December 1, 1982Date of Patent: June 18, 1985Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Shouji Nakayama, Yukio Takanashi, Toshiharu Higuchi, Touru Yakabe
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Patent number: 4383197Abstract: A shield is disposed about the electrode of a metal halide arc discharge lamp in order to improve lamp performance. The construction and location of the shield are such as to not lower the cold-spot temperature of the arc tube.Type: GrantFiled: November 2, 1978Date of Patent: May 10, 1983Assignee: GTE Products CorporationInventors: W. Calvin Gungle, William M. Keeffe, Dale E. Work
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Patent number: 4223246Abstract: A microwave tube having a heated cathode with a rare earth magnet positioned inside the evacuated envelope of the tube and at least partially shielded from thermal radiation from the cathode and/or anode so that the magnet may be operated at elevated temperatures while protected from environment such as oxygen in the air to prevent degradation of the magnetic properties of the magnet at temperatures up to 500.degree. C. during processing of the tube or up to 250.degree. C. during operation of the tube with thermal shielding from the hot cathode preventing any surface of the magnet from exceeding such temperatures.Type: GrantFiled: January 12, 1979Date of Patent: September 16, 1980Assignee: Raytheon CompanyInventor: John M. Osepchuk
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Patent number: 4220889Abstract: A cathode for an electron gun in which a lanthanum hexaboride cap has an internal recess which accommodates a pyrolytic graphite heater element. The cap is cup-shaped, while the heater element is in the form of a frustum of a cone and is resiliently maintained in abutting relationship with the cap by a corrugated tubular member and an assembly of rigid tubes. A cylindrical shell surrounds the periphery of the cap, and a pair of generally conical shielding elements are located in position to intercept stray thermal radiation from the heater element. All of these cathode components are supported in coaxial relationship with each other within the electron gun.Type: GrantFiled: February 26, 1979Date of Patent: September 2, 1980Assignee: Commissariat a l'Energie AtomiqueInventors: Gerard Marhic, Philippe Martin
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Patent number: 4216405Abstract: A large cathode structure having a diameter on the order of 50 cm for producing uniform plasmas in a magnetic field. The cathode is oxide-coated and indirectly heated by a plurality of heater wires disposed in insulating tubes arranged parallel to each other. The cathode is pressed against the insulating tubes thereby to maintain it substantially flat in spite of expansion and contraction due to the heating and cooling effects. Optionally, the insulating tubes carrying the heater wires may be backed up by a second set of insulating tubes disposed at right angles to the first set. An annular ring is disposed about the cathode and is provided with tungsten springs for forcing the cathode against the heater tubes. This ring may additionally serve as a heat shield and maintain the temperature more uniform about the periphery of the cathode. For large cathodes, the structure may be water cooled by the provision of two copper tubes through which the water flows.Type: GrantFiled: August 25, 1977Date of Patent: August 5, 1980Assignee: TRW Inc.Inventors: Reiner L. Stenzel, William F. Daley
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Patent number: 4123684Abstract: A thyratron is provided with a baffled structure between its cathode and first control electrode. The baffled structure consists of a series (e.g. three) annular baffle plates, each having a central aperture aligned with the axis of the cathode, mounted on the end of a cylindrical heat shield surrounding the cathode. The final annular baffle plate, adjacent the first control electrode includes a solid disc within its central aperture.Type: GrantFiled: March 16, 1977Date of Patent: October 31, 1978Assignee: English Electric Valve Company LimitedInventors: Hugh Menown, Robert J. Wheldon
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Patent number: 4093893Abstract: A short arc fluorescent lamp comprises an envelope having dimensions compatible with existing incandescent lamp luminaires. A radio frequency power supply, enclosed within the lamp base structure, reduces anode voltage drop to increase lamp efficacy. Cathode voltage drop and sputtering are reduced by compact hollow cathode assemblies, including centrally disposed filaments, which are positioned at opposite ends of a tubular envelope assembly having a large ratio of diameter to length. Diffuse cathode emission allows operation with low pressure, low atomic weight fill gas which further increases luminous efficiency.Type: GrantFiled: November 22, 1976Date of Patent: June 6, 1978Assignee: General Electric CompanyInventor: John M. Anderson