Including Evacuating, Degasifying Or Getter Or Fluent Material Introduction Patents (Class 445/53)
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Publication number: 20140159561Abstract: A liquid-filled light emitting diode (LED) bulb including a base, a shell connected to the base forming an enclosed volume, a thermally conductive liquid held within the enclosed volume, a support structure connected to the base, and several LEDs attached to the support structure. The thermally conductive liquid has an oxygen content of at least 5 cubic centimeters of oxygen per liter of the thermally conductive fluid.Type: ApplicationFiled: December 12, 2013Publication date: June 12, 2014Applicant: SWITCH BULB COMPANY, INC.Inventors: Brian CUMPSTON, David HORN, Ronan LE TOQUIN
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Patent number: 8702257Abstract: An LED bulb having a bulb-shaped shell, a thermally conductive plastic material within the bulb-shaped shell, and at least one LED within the bulb-shaped shell. The bulb also includes a base, wherein the base is dimensioned to be received within a standard electrical socket.Type: GrantFiled: April 27, 2007Date of Patent: April 22, 2014Assignee: Switch Bulb Company, Inc.Inventors: Ronald J. Lenk, Carol Lenk, Daniel Chandler
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Patent number: 8579670Abstract: An energy saving gas discharge lamp, and method of making same, is provided. The gas discharge lamp includes a light-transmissive envelope, and an electrode within the light-transmissive envelope to provide a discharge. A light scattering reflective layer is disposed on an inner surface of the light-transmissive envelope. A phosphor layer is coated on the light scattering reflective layer. A discharge-sustaining gaseous mixture is retained inside the light-transmissive envelope. The discharge-sustaining gaseous mixture includes more than 80% xenon, by volume, at a low pressure.Type: GrantFiled: March 13, 2013Date of Patent: November 12, 2013Assignee: OSRAM SYLVANIA Inc.Inventors: John Peterson, Daniel Marian, Paul Salvi
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Patent number: 8376801Abstract: The present invention relates to a luminescent component (30) and a manufacturing method thereof. The luminescent component (30) comprises a first transparent carrier (18), a second transparent carrier (24), a substrate (10) sandwiched between said transparent carriers (18; 24), the substrate (10) comprising a conduit from the first transparent layer (18) to the second transparent carrier (24), the conduit being filled with a luminescent solution (20). This facilitates the use of colloidal solutions of quantum dots in such a luminescent component (30). Preferably, the substrate (10) is direct bonded to the transparent carriers (18, 24) using direct wafer bonding techniques.Type: GrantFiled: March 9, 2009Date of Patent: February 19, 2013Assignee: NXP B.V.Inventors: Viet Nguyen Hoang, Radu Surdeanu, Benoit Bataillou
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Publication number: 20120248966Abstract: A reduced wattage gas discharge lamp and method of making same. The gas discharge lamp includes a light transmissive envelope with an inner surface, having a light scattering reflective layer disposed thereon. A phosphor layer is coated on an inner surface of the light scattering reflective layer. A discharge-sustaining gaseous mixture is retained inside the light-transmissive envelope. The discharge-sustaining gaseous mixture includes at least 88% argon, by volume, at a low pressure. An electrode is located within the light-transmissive envelope. The electrode is capable of providing an electric discharge to trigger a reaction within the light-transmissive envelope to cause the lamp to emit light. The remainder of the discharge-sustaining gaseous mixture is substantially neon, at a low pressure. The low pressure is about 3.6 Torr.Type: ApplicationFiled: May 15, 2011Publication date: October 4, 2012Applicant: OSRAM SYLVANIA INC.Inventors: Brian D. Jones, Craig Boyce
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Patent number: 8262429Abstract: A method for producing a plasma display panel includes the steps of: evacuating air from a discharge space formed between a front plate and a rear plate which are substrates facing each other through piping; introducing a discharge gas into the discharge space through gas piping that branches from the piping; and recovering the discharge gas remaining in the piping system through the piping.Type: GrantFiled: November 16, 2010Date of Patent: September 11, 2012Assignee: Panasonic CorporationInventors: Masafumi Okawa, Yoshiki Sasaki, Takeo Funaoka, Toshiyuki Watanabe, Masaki Nishinaka, Mamoru Watanabe, Jun-ichi Taira, Yugo Takeda
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Patent number: 8253331Abstract: A fluorescent lamp includes a discharge tube having an inner wall forming a discharge chamber. One or more coiled electrodes are disposed within the discharge tube. A mercury containing composition is disposed on at least one coiled electrode.Type: GrantFiled: April 28, 2010Date of Patent: August 28, 2012Assignee: General Electric CompanyInventors: Zoltan Somogyvari, Laszlo Balazs
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Patent number: 8226450Abstract: A method of manufacturing a display device includes forming a thin film transistor on an insulating substrate, forming an electrode which is electrically connected with the thin film transistor, forming a wall which surrounds the electrode, supplying a first solvent to the electrode that is surrounded by the wall, and supplying ink which comprises an organic material and a second solvent to the electrode which has previously received the first solvent. Thus, the manufacturing method produces a display device which has a uniform organic layer.Type: GrantFiled: June 4, 2010Date of Patent: July 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-won Lee, Jung-soo Rhee, Jin-koo Chung
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Patent number: 8123583Abstract: The present invention relates to a method for producing a discharge lamp using a two-stage filling process.Type: GrantFiled: August 1, 2007Date of Patent: February 28, 2012Assignee: Osram AGInventors: Lothar Hitzschke, Frank Vollkommer
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Publication number: 20110250817Abstract: A method for producing a plasma display panel includes the steps of: evacuating air from a discharge space formed between a front plate and a rear plate which are substrates facing each other through piping; introducing a discharge gas into the discharge space through gas piping that branches from the piping; and recovering the discharge gas remaining in the piping system through the piping.Type: ApplicationFiled: November 16, 2010Publication date: October 13, 2011Inventors: Masafumi Okawa, Yoshiki Sasaki, Takeo Funaoka, Toshiyuki Watanabe, Masaki Nishinaka, Mamoru Watanabe, Jun-ichi Taira, Yugo Takeda
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Publication number: 20110228516Abstract: An LED bulb includes at least one LED mount disposed within a shell. At least one LED is attached to the at least one LED mount. A thermally conductive liquid is held within the shell. The LED and LED mount are immersed in the thermally conductive liquid. A plurality of beads is suspended in the thermally conductive liquid. The plurality of beads is configured to displace a predetermined amount of the thermally conductive liquid to reduce the amount of thermally conductive liquid held within the shell.Type: ApplicationFiled: March 23, 2011Publication date: September 22, 2011Applicant: Switch Bulb Company, Inc.Inventors: Ray F. STEWART, Brett Sharenow, David Horn
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Patent number: 7985114Abstract: A method for making a field emission lamp generally includes the steps of: (a) providing a cathode emitter; (b) providing a transparent glass tube having a carbon nanotube transparent conductive film and a fluorescent layer, wherein the carbon nanotube transparent conductive film and the fluorescent layer are both disposed on an inner surface of the transparent glass tube; (c) providing a first glass feedthrough, a second glass feedthrough, and a nickel pipe, wherein the first glass feedthrough has an anode down-lead pad and an anode down-lead pole connected to the anode down-lead pad, and the second glass feedthrough has a cathode down-lead pole; (d) securing the nickel pipe to one end of the cathode emitter and securing the other end of the cathode emitter to one end of the cathode down-lead pole of the second glass feedthrough; and (e) melting and assembling the first and second glass feedthroughs to ends of the transparent glass tube respectively.Type: GrantFiled: December 5, 2007Date of Patent: July 26, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Yang Wei, Lin Xiao, Feng Zhu, Liang Liu, Shou-Shan Fan
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Patent number: 7972191Abstract: A manufacturing method of an image display apparatus, having a vacuum container with getters therein, includes the steps of exhausting an inner gas through an exhaust hole provided in the vacuum container; and activating the getters during the exhausting. In the activating step, the getters are sequentially activated first from a getter positioned in an area having a larger exhaust conductance with respect to the exhaust hole.Type: GrantFiled: August 6, 2009Date of Patent: July 5, 2011Assignee: Canon Kabushiki KaishaInventors: Yasuo Ohashi, Mitsutoshi Hasegawa, Shigeto Kamata
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Publication number: 20110148282Abstract: Preferred embodiments of the invention provide microcavity plasma lamps having a plurality of metal and metal oxide layers defining a plurality of arrays of microcavities and encapsulated thin metal electrodes. Packaging encloses the plurality of metal and metal oxide layers in plasma medium. The metal and metal oxide layers are configured and arranged to vary the electric field strength and total gas pressure (E/p) in the lamp. The invention also provides methods of manufacturing a microcavity plasma lamp that simultaneously evacuate the volume within the packaging and a volume surrounding the packaging to maintain an insignificant or zero pressure differential across the packaging. The packaging is backfilled with a plasma medium while also maintaining an insignificant or zero pressure differential across the packaging.Type: ApplicationFiled: December 17, 2009Publication date: June 23, 2011Applicant: The Board of Trustees of the University of IllinoisInventors: J. Gary Eden, Sung-Jin Park, Jason D. Readle, Jekwon Yoon, Andrew Price, Jeffrey Putney
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Patent number: 7927167Abstract: The present invention provides a getter material configured by a pressed powder mixture comprising Ba—Al alloy powder and Ni powder, wherein when the pressed powder mixture is heated in a vacuum atmosphere or an inert gas atmosphere, a temperature at which an exothermic reaction starts is ranging from 750° C. to 900° C. According to this getter material, since the temperature at which the pressed powder mixture starts the exothermic reaction is set within a range from 750° C. to 900° C., there can be provided a getter material and an evaporation type getter device capable of suitably controlling an evaporation amount of getter components under a stable condition, and is excellent in responsiveness because a time ranging from a starting time of heating the getter material to a starting time of evaporation of the getter components can be shortened.Type: GrantFiled: July 19, 2010Date of Patent: April 19, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Hiromichi Horie, Yoshiyuki Fukuda, Hiromasa Kato, Nobuaki Nakashima, Yasuhisa Makino
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Patent number: 7871303Abstract: Heavier noble gases such as xenon and argon can reduce the run-in period for vacuum tubes and in particular flame detector tubes. The tubes can be filled with a run-in gas and then run-in. The run-in gas can then be exchanged for an end gas, such as neon, and the tube sealed. A final conditioning step of running in the tube with the end gas can further smooth the tube's anode and cathode to thereby improve performance and operating life.Type: GrantFiled: August 30, 2007Date of Patent: January 18, 2011Assignee: Honeywell International Inc.Inventor: Barrett E. Cole
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Publication number: 20100237772Abstract: An electro-optical device includes a substrate, a partition disposed on the substrate, and a plurality of electro-optical elements disposed on the substrate. Each element includes a functional layer having an electro-optic function, power with a resolution in a first direction that corresponds to an interval between the elements in the first direction. The plurality of elements constitute element arrays and are divided into a plurality of element groups. The element arrays are arranged in a direction crossing the first direction. Each group includes the corresponding electro-optical elements aligned in a second direction crossing the first direction, and each of the plurality of element regions includes at least one of the element groups and extends in a third direction crossing the first direction as viewed from the top.Type: ApplicationFiled: February 25, 2010Publication date: September 23, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Shinri SAKAI, Tsukasa OTA, Toru NIMURA
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Publication number: 20100159791Abstract: A method for introducing an accurately dosable amount of mercury into the discharge vessel of a fluorescent lamp, wherein both sides of the discharge vessel are connected to a lamp receptacle; and the discharge vessel is charged with a gas stream via the lamp receptacle and is filled, with a predetermined amount of mercury. During or after dosing the amount of mercury to be introduced, the mercury is brought in a dosed volume in the form of a single, coalescing drop, then the entire amount of mercury to be introduced is transported into the discharge vessel, while still maintaining the previously formed drop. A change-over mechanism guides the gas stream past the drop via a bypass channel and blocks the bypass channel such that while the bypass channel is blocked, the gas stream is guided over the dosed volume and drags the drop along with it into the discharge vessel.Type: ApplicationFiled: February 22, 2010Publication date: June 24, 2010Applicant: Flowil International Lighting (Holding) B.V.Inventors: Petar Stanic, Jürgen Remde
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Publication number: 20100132607Abstract: Methods provide an alert to the release of mercury. A sealed container containing an odor-producing agent is provided proximate to a sealed breakable enclosure containing mercury, the container and/or the breakable enclosure physically separating the agent from the mercury. In response to a breaking of the breakable enclosure, the agent produces an odor as a function of the breaking, the odor providing an alert to a release of the mercury. Service methods are also provided, for example wherein a service provider provides the sealed breakable enclosure containing mercury and deploys the odor-producing agent. Articles of manufacture, systems, articles and programmable devices are also provided.Type: ApplicationFiled: December 1, 2008Publication date: June 3, 2010Applicant: International Business Machines CorporationInventors: Rick A. Hamilton, II, Paul A. Moskowitz, Brian M. O'Connell, Clifford A. Pickover
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Publication number: 20100136871Abstract: A manufacturing method of the liquid crystal display panel and a liquid crystal dripping device for the liquid crystal dripping and panel pasting method, by which residual moisture, gas constituents, and foreign substances mixed in the liquid crystal can be removed assuredly, and an occurrence of display fault can be suppressed, and can also improve display quality and a yield of the liquid crystal display panel, is provided. In this manufacturing method, prior to drip the liquid crystal on the substrate, pre-treatments, which combines suitably vacuum treatment which removes residual moisture and gas constituents from the liquid crystal maintaining the liquid crystal in a reduced pressure environment, filtration treatment which removes foreign substances from the liquid crystal, and heat treatment which heats the liquid crystal as required for carrying out distributed removal of the organic substances, are performed.Type: ApplicationFiled: February 2, 2010Publication date: June 3, 2010Applicant: NEC LCD TECHNOLOGIES, LTD.Inventor: Toshihiko MOTOMATSU
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Publication number: 20100052508Abstract: A discharge lamp is disclosed, including a sealed vessel with an inner surface, at least one illuminating gas filled inside the sealed vessel, and a fluorescent layer coated on the inner surface. The composition of the fluorescent layer is adjusted according to a colored light emitted by the illuminating gas during a discharge process within the sealed vessel, such that the colored light is converted into a visible light after passing through the fluorescent layer.Type: ApplicationFiled: January 5, 2009Publication date: March 4, 2010Applicant: WELLYPOWER OPTRONICS CORPORATIONInventors: Tjong-Ren Chang, Jin-Yuh Lu, Wen-Chun Chiu, Wei-Yuan Tsou
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Publication number: 20090322204Abstract: A method for manufacturing a cold cathode fluorescent lamp (CCFL) is disclosed. The CCFL includes a light transmitting shell and an electrode disposed at one end of the light transmitting shell. The method includes the steps of exhausting a gas existing inside the light transmitting shell via a vent of the light transmitting shell, charging at least one inert gas into the light transmitting shell, and removing an amalgam, which is initially disposed in a gas adjusting instrument, into a temporal region of the light transmitting shell after the step of exhausting.Type: ApplicationFiled: October 27, 2008Publication date: December 31, 2009Inventors: Ruey-Feng Jean, A-Hua Chang
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Publication number: 20090284672Abstract: A liquid crystal display includes a first substrate, a second substrate facing an inside surface of the first substrate with a predetermined interval therebetween, a first electrode and a second electrode formed on at least one of the first substrate and the second substrate, partitions formed between the first substrate and the second substrate and dividing the space between the first substrate and the second substrate into a plurality of sub-spaces, and an OCB mode liquid crystal filled in the sub-spaces. The liquid crystal display is driven through a change of a bend arrangement by applying a second voltage that is less than the first voltage between the first electrode and the second electrode after being transitioned from an initial splay arrangement to a bend arrangement by applying a first voltage between the first electrode and the second electrode.Type: ApplicationFiled: March 19, 2009Publication date: November 19, 2009Inventors: Bong-Jin Baek, Hye-Sung Kim, Jae-Chang Kim, Tae-Hoon Yoon, Won-Sang Park, Seong-Ryong Lee
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Publication number: 20090200943Abstract: The present invention aims to provide an external-electrode discharge lamp able to suppress luminance variation, a manufacturing method for the lamp, and a backlight unit. A lamp (10) of the present invention includes a glass tube (11) sealed at both ends, and electrodes (18) and (19) provided around outer circumferential peripheries of the ends in the axial direction of the glass tube (11). During operation of the lamp (10), the electrodes (18) and (19) and the glass tube (11) between the electrodes (18) and (19) and a discharge space (14) equivalently function as first and second capacitors, whose capacitances are substantially the same.Type: ApplicationFiled: January 20, 2005Publication date: August 13, 2009Inventors: Hirofumi Yamashita, Masanobu Murakami, Masao Izumi, Masaru Saitoh
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Publication number: 20090153053Abstract: This disclosure relates to a low mercury content, metal halide lamp having a ceramic arc tube with an aspect ratio ranging from approximately 1.15 up to about 4.75, and having a fill in the arc tube of up to 2 milligrams of mercury per cubic centimeter and up to 10 milligrams of zinc metal and/or zinc/zinc iodide per cubic centimeter.Type: ApplicationFiled: December 18, 2007Publication date: June 18, 2009Inventor: Andrew Lawrence Podevels
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Publication number: 20090121610Abstract: A fluorescent lamp (10) includes a tubular member or envelope (12) having an arc generating and sustaining medium (15) therein. As known, the tubular envelope (12) is constructed of a suitable glass, for example lime glass. An electrode (14) is provided in each end of the tubular member (12) and a phosphor coating (16) is applied to the interior surface (18) of the tubular member (12). A mercury dispenser (20) is situated within the tubular member (12). The mercury dispenser (20) includes a body (21) composed of a material selected from the group consisting of glass and ceramic materials. The body (21) is provided with a bore (22). A first material (24) capable of wetting mercury coats the bore. In a preferred embodiment the first material (24) is silver having a thickness between 0.1? and 8?. A quantity of mercury (26) is deposited in the bore (22) in contact with the first material (24).Type: ApplicationFiled: November 9, 2007Publication date: May 14, 2009Applicant: OSRAM SYLVANIA INC.Inventors: David W. Johnston, William A. George, Richard S. Speer, Gregory Zaslavsky
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Patent number: 7468584Abstract: Process for producing a discharge lamp having a silica discharge vessel with an emission space in which there is a pair of electrodes at least 0.15 mg/mm3 of mercury, argon (Ar), and halogen by measuring the relation b/a1 between the emission intensity a1 of argon (Ar) at a wavelength of 668 nm and the emission intensity b of OH radicals at a wavelength of 309 nm in a state of glow discharge of the discharge lamp; supplying hydrogen into the discharge vessel of the discharge lamp; measuring the relation c/a2 between the emission intensity a2 of argon (Ar) at a wavelength of 668 nm and the emission intensity c of OH radicals at a wavelength of 309 nm in the state of glow discharge of the discharge lamp; and fixing the difference c/a2?b/a1 at a value in the range of 0.001 to 15.Type: GrantFiled: March 29, 2006Date of Patent: December 23, 2008Assignee: Ushiodenki Kabushiki KaishaInventors: Takuya Tsukamoto, Noriko Nishiaki, Yoshihiro Horikawa, Senga Takehito
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Patent number: 7381111Abstract: A method of manufacturing a surface emitting fluorescent lamp, designed to reduce a total thickness of the surface emitting fluorescent lamp, and to allow easy sealing of a gas injection port. The method comprises forming at least one injection port connected to one side of a discharge channel in a horizontal direction of the fluorescent lamp to communicate with the discharge channel simultaneous with forming a discharge space, providing a sealant within the gas injection port in order to seal the gas injection port, providing a mercury pellet containing mercury to one side of the sealant, vacuum exhausting the discharge space of the fluorescent lamp, diffusing inert gas into the discharge space, and diffusing mercury vapor evaporated from the mercury pellet into the discharge space. Then, the sealant is melted, and seals a connection between the gas injection port and the discharge channel.Type: GrantFiled: March 15, 2005Date of Patent: June 3, 2008Assignee: Mirae CorporationInventor: Jae-Doo Yun
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Patent number: 7169005Abstract: A display device includes a backlight having a discharge tube and a reflector. A heat conduction member is attached to the reflector in contact with the discharge tube, so that a part of the discharge tube is locally cooled by the heat conduction member. Liquid mercury is collected at a first position in the discharge tube, and the backlight is assembled so that the heat conduction member or other cooling device is located at the first position. Also, the display device includes an optical sheet having a diffusion portion having projections containing scattering material particles.Type: GrantFiled: June 30, 2005Date of Patent: January 30, 2007Assignee: Sharp Kabushiki KaishaInventors: Keiji Hayashi, Tetsuya Kobayashi, Tetsuya Hamada, Takeshi Gotoh, Toshihiro Suzuki, Mari Sugawara, Akio Sotokawa, Seiji Hachisuka
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Patent number: 7112116Abstract: The process comprises the provision of a discharge vessel (2) which is closed off on one side, fitting a second tube over part of the discharge vessel and evacuating and filling the volume of the outer bulb via a pumping hole, which remains open in the second extension part within the second tube. This pumping hole is only closed at the end by means of an operation which closes it by rolling.Type: GrantFiled: June 2, 2004Date of Patent: September 26, 2006Assignee: Patent-Treuhand-Gesellschaft für elektrisch Glühlampen mbHInventors: Jürgen Gräf, Andreas Hohlfeld, Michael Hülsemann, Anton Schlögl, Karen Twesten
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Patent number: 7102291Abstract: A fluorescent lamp post-production heating structure allows for even dispersion of mercury and other lamp compounds throughout the entire length of assembled fluorescent lamps by allowing uniform and thorough heating of each lamp's sealed chamber containing these materials to a temperature high enough to vaporize the mercury therein.Type: GrantFiled: August 28, 2003Date of Patent: September 5, 2006Assignee: Hewlett-Packard Development CompanyInventors: Yohei Yamamuro, Thomas Louchard, Thomas J. Roetker
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Patent number: 7005796Abstract: A display device is described which includes a fluid exchange device mated to the display housing. The fluid exchange device makes a fluid tight seal with the display housing and includes a sealing member which may be perforated by a conduit. The conduit provides for the flow of fluids into and away from a cavity within the display device that is used to contain a display medium. The fluid exchange device provides a fluid tight seal with the housing, and the sealing member reseals itself upon withdrawal of the conduit from the sealing member.Type: GrantFiled: March 25, 2003Date of Patent: February 28, 2006Assignee: Xerox CorporationInventors: Omprakash S. Kolluri, Larry A. Smith
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Patent number: 6913504Abstract: Method for introducing a limited amount of mercury into a fluorescent lamp during manufacture thereof includes the steps of forming the lamp with an exhaust tubulation therein open at an end thereof, exhausting the interior of the lamp through the exhaust tubulation, placing a body of metal material not reactive with mercury in the exhaust tubulation open end, the body having a coating of metal which amalgams with mercury, over a selected surface area of the body, and having mercury on the coated area of the body, such that a limited amount of the mercury is retained by the metal coating, and sealing the open end of the exhaust tubulation, whereby the amount of mercury retained on the body and introduced into the lamp is limited by the surface area of the metal coating on the body.Type: GrantFiled: June 25, 2003Date of Patent: July 5, 2005Assignee: Osram Sylvania Inc.Inventors: Gregory Zaslavsky, Richard Speer, Philip E. Moskowitz, Joseph V. Lima, Louise D. Cleary
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Patent number: 6905385Abstract: Method for introducing a limited amount of mercury into a fluorescent lamp during manufacture thereof includes the steps of forming the lamp with an exhaust tubulation therein open at an end thereof and provided with a ball retention structure, exhausting the interior of the lamp through the tubulation open end, placing a rigid ball of inert material in the tubulation between the ball retention structure and the tubulation open end, the ball having a coating of a selected one of silver, gold, and indium, of a selected mass over a selected surface area of the ball, and mercury on the coated area, and sealing the open end of the tubulation, whereby the amount of mercury retained on the ball and thereby introduced into the lamp is limited by the selected mass of the coating on the ball.Type: GrantFiled: December 3, 2002Date of Patent: June 14, 2005Assignee: Osram Sylvania, Inc.Inventors: Richard S. Speer, Louise D. Cleary, Joseph V. Lima
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Patent number: 6873097Abstract: Inert gas provided at a suitable level inside a hermetically sealed cathode-ray tube display, typically of the flat-panel type, enables the display's electron-emitting device (20) to be automatically cleaned during display operation subsequent to final display sealing. Upon being struck by electrons emitted by the electron-emitting device, atoms (68) of the inert gas ionize to produce positively charged ions (124) which travel backward to the electron-emitting device and dislodge overlying contaminant material (130 and 132). A getter (26) collects dislodged contaminant. A reservoir (28) provides inert gas to replace inert gas lost during the cleaning process.Type: GrantFiled: June 28, 2001Date of Patent: March 29, 2005Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.Inventors: Shiyou Pei, Colin D. Stanners, Frederick K. Byers
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Patent number: 6860780Abstract: A method for producing a plasma display panel that has a front substrate and a back substrate disposed to face each other. A pre-baking phosphor layer containing a phosphor and an organic binder is formed on at least one of surfaces of the front substrate and the back substrate that are to face each other. A sealing material that softens with heat is applied to the peripheral region of at least one of the surfaces of the front and back substrates that are to face each other. The front and back substrates are disposed to face each other in a stack. The front and back substrates are heated to burn out the organic binder while supplying a dry gas containing oxygen to an internal space that is formed between the front and back substrates.Type: GrantFiled: April 4, 2001Date of Patent: March 1, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kanako Miyashita, Hiroyuki Kado
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Patent number: 6669521Abstract: A method of removing contaminants from a double-ended arc discharge tube includes the steps of providing at least one capillary channel at each end of the tube, where the ends of the tube are sealed closed except at the capillary channels, and introducing a flushing gas into the tube through one capillary channel at one end of the tube and removing the flushing gas and contaminants through another capillary channel at another end of the tube. During manufacture, the double-ended arc discharge tube has a sealed electrode and an open capillary channel at each end of the tube.Type: GrantFiled: September 26, 2001Date of Patent: December 30, 2003Assignee: Osram Sylvania Inc.Inventor: Ernest A. Davey, Jr.
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Patent number: 6624592Abstract: A method of removing contaminant particles from faceplates in newly fabricated field emission displays so that a uniform distribution of contaminants is achieved at the emitter sites of the display. During the initial operation of a field emission dislay device contaminants are removed from the display faceplate by electron induced desorption. The emission current profile at the emitter sites is selected so that the distribution of readsorbed contaminants is equalized. The variations in current emission compensate for shadowing effects due to spacer walls to produce a uniform readsorption distribution. The emitter sites may driven using an animated contrast image at a constant current for the display.Type: GrantFiled: December 18, 2001Date of Patent: September 23, 2003Assignees: Candescent Intellectual Property Services, Inc, Candescent Technologies CorporationInventors: James C. Dunphy, Donald J. Elloway
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Patent number: 6607417Abstract: A suction device used in aging process of a microwave tube includes an ion pump and a suction unit respectively connected to an electron gun and a collector located in two opposite ends of the microwave tube. The suction unit includes a barrel communicated with the microwave tube and a getter disposed in the barrel. An electric power source is electrically connected to the getter. Before operation, the microwave tube along with the suction device undergo exhaust process on a heating exhaust station. After that, the electric power source supplies an electric current to electrify and heat the getter to its activation condition. Therefore, the suction device can greatly save the vacuum suction time of the aging process and the cost associated with the production of the microwave tube.Type: GrantFiled: November 5, 2001Date of Patent: August 19, 2003Assignee: Air Asia Technology Inc.Inventor: Han-Ying Chen
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Patent number: 6554672Abstract: An evacuated cavity is hermetically sealed between a baseplate and faceplate of a flat panel display. Melting a glass powder, or frit, on the perimeter of the viewing area forms the hermetic seal. After melting the frit, a first fluid is circulated through the cavity to speed cooling. To further expedite the cooling of the flat panel display, a second fluid flows externally along the contour of the flat panel display to insure that the cooling is uniform and thereby avoid thermal shock.Type: GrantFiled: March 12, 2001Date of Patent: April 29, 2003Assignee: Micron Technology, Inc.Inventors: Craig M. Dunham, Seungwoo Lee, Jim Browning, Michel Garcia
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Patent number: 6443789Abstract: A device (10) for introducing hydrogen into a flat display (14) of the field emission or plasma addressed liquid crystal type is described, formed of a reservoir (11) containing a hydrogen accumulator material (21) connected to the internal space (13) of the display by means of a wall (15) permeable to the passage of hydrogen gas as a function of the temperature. The device comprises a heater (19) and a heater (22) for bringing respectively the wall and the accumulator material to the desired temperatures, or a single heater which carries out both cited functions. There is also described a method by which the device is activated whenever the flat display is working, the switching on of said heater being arranged in order to bring the wall itself to a previously calculated temperature.Type: GrantFiled: November 30, 2000Date of Patent: September 3, 2002Assignee: Saes Getters S.p.A.Inventors: Stefano Tominetti, Alessio Corazza
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Patent number: 5962962Abstract: A method of encapsulation for an organic EL device, which overcomes the difficulty of conventional methods by fully preventing the growth of dark spots in the organic EL device by providing an inert liquid layer having a dissolved oxygen concentration of 1 ppm or less on the periphery of the organic EL device.Type: GrantFiled: March 5, 1997Date of Patent: October 5, 1999Assignee: Idemitsu Kosan Co., Ltd.Inventors: Masato Fujita, Kenichi Fukuoka
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Patent number: 5496201Abstract: An apparatus and method for the manufacturing of metal salt gas discharge lamps involves a purging assembly which will allow the purging step to be conducted outside a dry box, while completely shielding the fiber material from possible exposure to the atmosphere, so as to simplify the manufacturing process and reduce operation cost. The purging assembly comprises a manifold, which is removably connected to a vacuum pump and an inert gas supply, respectively. The manifold is provided with a plurality of branch tubes connected thereto. Each of the branch tubes is adapted to be connected to a lamp envelope via a ball valve, which provides a straight passage way therethrough when opened. During the purging operations, the ball valves respectively connecting the lamp envelopes and the branch tubes are open to thereby allow moisture and other undesirable components to be purged from the lamp envelope.Type: GrantFiled: June 16, 1994Date of Patent: March 5, 1996Assignee: Industrial Technology Research InstituteInventor: Ching-Hsien Hwang
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Patent number: 5397259Abstract: An ultraviolet radiation starting source for an arc discharge lamp includes a sealed envelope with a press seal, a gaseous fill material within the envelope, a molybdenum ribbon which extends from the press seal into the interior region of the envelope and a wire inlead for carrying electrical energy to the ribbon. A method of manufacture includes flowing a fill material through a tube. Further, a seal is formed at one end of the tube, the interior of the tube is pumped to a desired pressure and another press seal is formed at the second end of the tube to create a sealed envelope.Type: GrantFiled: May 4, 1994Date of Patent: March 14, 1995Assignee: GTE Proucts CorporationInventors: Gregory Zaslavsky, Joseph V. Lima
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Patent number: 5387837Abstract: A low pressure discharge lamp having a tubular discharge vessel (1). At each of its end portions (2, 3) the vessel (1) is fused to a respective metal tube (5) having an uncovered outer surface outside the vessel. A sealed glass tube (6) is fused to the metal tubes (5). Ignition aids (18, 28, 40) may also be present. The simple construction of the lamp permits manufacture and high lamp quality, even at long lengths and/or small diameters of the discharge vessel. The lamp may have an ionizable filling of rare gas or may also contain mercury. A fluorescent powder may also be present in the discharge vessel. The lamp (72) and a luminaire (70, 71) mounting the lamp may be used for display or signalling purposes.Type: GrantFiled: March 2, 1993Date of Patent: February 7, 1995Assignee: U.S. Philips CorporationInventors: Bauke J. Roelevink, Paulus Q. J. Nederpel, Franciscus A. S. Ligthart
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Patent number: 5326298Abstract: A light emitter for giving plasma light emission upon application of an electric field. The light emitter comprises a resin including fine bubbles in which a gas is trapped. The gas is selected from rare gases, hydrocarbon gas and nitrogen gas. This light emitter is applicable to a light emitting device such as a plasma display.Type: GrantFiled: March 16, 1993Date of Patent: July 5, 1994Assignee: Minolta Camera Co., Ltd.Inventor: Hideo Hotomi
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Patent number: 5213537Abstract: After evacuating and cleaning a discharge lamp, such as a fluorescent lamp, the lamp is dosed with mercury in the vapor phase. In particular, mercury vapor is introduced into the lamp at a predetermined pressure such that the vapor contained within the lamp corresponds to the required amount of mercury. To this end, the vapor pressure of mercury is controlled by controlling the temperature of the lamp and a reservoir of mercury in a pre-filled mercury container. Alternatively, a pressure regulator is used to directly control the vapor pressure of mercury at a sufficiently high temperature to maintain at least a portion of the mercury in the vapor state. Still another alternative method involves metering a fixed volume of mercury at a predetermined pressure. Finally, the discharge lamp is dosed with the remaining fill ingredients, e.g., at least one inert gas for a fluorescent lamp.Type: GrantFiled: June 25, 1992Date of Patent: May 25, 1993Assignee: General Electric CompanyInventors: Victor D. Roberts, James T. Dakin, Walter R. Champman, Jr., Bernard F. Fenoglio
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Patent number: 4924146Abstract: The invention relates to an unsaturated high-pressure sodium lamp provided with a discharge vessel enclosing a discharge space, having a ceramic wall and closed at both ends by a leadthrough element to which an electrode is secured, and at least one electrode provided with emitter material. The fill material within the discharge vessel contains sodium, mercury and a rare gas. According to the invention, the discharge space also contains in metallic form one or more of the elements Mg, Ca, Sr and Ba up to at most 10% by weight of the mercury metered.Type: GrantFiled: February 10, 1989Date of Patent: May 8, 1990Assignee: U.S. Philips CorporationInventor: Marina M. J. Meeuwssen
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Patent number: 4898558Abstract: This invention related to incandescent lamps and more particularly to the gettering of such lamps. In accordance with the present invention there is provided an improved method of gettering an incandescent lamp. The method comprises introducing a fill gas and a getter compound comprising a silane compound, or a partially halogenated derivative thereof, into an unsealed lamp envelope; sealing the lamp envelope; and heating the sealed envelope, for a sufficient period of time, and at a temperature sufficient to activate the getter to perform its desired gettering function prior to the thermal decomposition thereof.Type: GrantFiled: May 26, 1989Date of Patent: February 6, 1990Assignee: GTE Products CorporationInventor: John W. Shaffer
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Patent number: 4861302Abstract: A process for flushing and filling a low pressure gas discharge lamp which has an exhaust tube and discharge electrodes at each of its ends and which is provided with a discharge vessel for limiting or bounding the gas discharge, wherein the course of the process the discharge vessel is coupled via the exhaust tubes to a pumping apparatus. Flushing or fill gas is continually charged into the discharge vessel via one of the exhaust tubes and simultaneously via the other exhaust tube the gas is discharged in such a manner that within the discharge vessel an equilibrium pressure prevails which coincides with the final charging pressure of the lamp, while the flow rate of the flowing gas is expediently maintained at a constant value.Type: GrantFiled: January 21, 1988Date of Patent: August 29, 1989Assignee: Tungsram ReszvenytarsasagInventors: Kalman Antal, Laszlo Ugrosdy, Bela Rimay