Hermetically Assembling Plural Parts Patents (Class 445/44)
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Publication number: 20090236992Abstract: An LED lamp including a glass lampshell and a stem assembly with one end inserted into the glass lampshell. The stem assembly comprises a glass trumpet tube with one end sealed within the glass lampshell to form a cavity within the glass lampshell and within the cavity a supporting component connected to the glass trumpet tube and supporting an LED emitter. The stem assembly further comprises a wire encompassed within the glass trumpet tube. The wire has one end extending outside of the cavity and the other end electrically connected to the LED emitter.Type: ApplicationFiled: February 27, 2009Publication date: September 24, 2009Inventor: Kun-Yuan CHIANG
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Patent number: 7591698Abstract: A vehicle lighting device manufacturing method, for joining a transparent cover with a housing ray welding, includes: a preliminary heating step of preparing welding portions of the transparent cover and the housing, and of forming, on part of the welding portion of the transparent cover and/or the housing, a built-up portion, which overlays a welding portion in a design, and heating and softening the built-up portion; a pressure-bonding step of pressure-bonding the welding portion of the transparent cover to the welding portion of the housing; and a welding step of welding the transparent cover and the housing that are pressure-bonded together by the emission of a light beam that irradiates the welding portion of the transparent cover and the housing along the entire length of edges.Type: GrantFiled: January 25, 2006Date of Patent: September 22, 2009Assignee: Koito Manufacturing Co., Ltd.Inventors: Kazuhiro Yamazaki, Ryosuke Yasuda, Fujihiko Sugiyama, Michihiko Suzuki
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Publication number: 20090218946Abstract: A lamp (1) has a preferably tubular container (10) consisting of at least partly transparent material and having a first opening (13) which is sealed by a metallic first seal (11) which preferably contains aluminum, wherein the surface of the first seal (11) facing the interior (17) of the container includes a convexly shaped portion (19). The first closure can be melted on the tube.Type: ApplicationFiled: April 24, 2006Publication date: September 3, 2009Applicant: PerkinElmer Optoelectronics GmbH & Co. KGInventor: Ingo Dunish
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CERAMIC DISCHARGE VESSEL WITH CHROMIUM-COATED NIOBIUM FEEDTHROUGH AND DISCHARGE LAMP CONTAINING SAME
Publication number: 20090212704Abstract: There is described a lamp having a ceramic discharge vessel with a niobium feedthrough that has been coated with a layer of chromium to provide oxidation resistance. In a preferred method, a slurry containing chromium powder is applied to the niobium feedthrough and dried. A sub-assembly is formed by inserting the coated niobium feedthrough into an annular polycrystalline alumina (PCA) disc and heated in vacuum to 1700° C. to 1900° C. to bond the feedthrough to the PCA and form the sub-assembly and an oxidation-resistant coating on the feedthrough. The sub-assembly is then sealed to a ceramic body of the discharge vessel in a conventional manner.Type: ApplicationFiled: February 27, 2008Publication date: August 27, 2009Applicant: OSRAM SYLVANIA INC.Inventors: George C. Wei, Domenic Checca -
Publication number: 20090209162Abstract: One embodiment relates to a method of sealing a gap formed between each end cap of a fluorescent bulb and a protective sleeve, where the fluorescent bulb is disposed within the protective sleeve to form a bulb and sleeve assembly with the gap defined between an external surface of the end caps and an internal surface of the protective sleeve. The method comprises rotating the bulb and sleeve assembly and injecting a sealant in the gap associated with each end cap as the bulb and sleeve assembly rotate to provide a continuous bead of sealant between the end caps and the protective sleeve.Type: ApplicationFiled: February 20, 2008Publication date: August 20, 2009Inventor: Anthony J. Bartol
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Patent number: 7559819Abstract: A joining material like an In film having a low melting point forms a surface oxide film when melted. If the oxide film is thick, an uneven surface shape will remain as it is, and can cause vacuum leakage during vacuum sealing. This problem is solved, for example, by placing particles of a refractory material inside the low melting joining material. The particles of the refractory material serve as a holding member for the low melting material and break the oxide film during a joining operation to bring the seal bonding with the low melting material to perfection.Type: GrantFiled: May 1, 2006Date of Patent: July 14, 2009Assignee: Canon Kabushiki KaishaInventors: Masaki Tokioka, Hiroharu Ueda, Mitsutoshi Hasegawa, Tokutaka Miura
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Publication number: 20090161363Abstract: An apparatus and method for reducing lumen depreciation caused by other than lamp lumen depreciation. In one aspect, manufacturing and assembly of the fixture uses clean-room light techniques. In another aspect of the invention, materials that have a propensity to outgas are shielded from direct exposure to light energy. Other aspects of the invention include other methodologies to eliminate causes for lumen depreciation.Type: ApplicationFiled: February 27, 2009Publication date: June 25, 2009Applicant: MUSCO CORPORATIONInventors: MYRON K. GORDIN, Timothy J. Boyle
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Publication number: 20090134796Abstract: The invention relates to a metal halide lamp comprising a ceramic discharge vessel (10), characterized in that an MoV leadthrough is connected to a PCA element (Al2O3) by means of a specific adhesive layer containing Al and Mo.Type: ApplicationFiled: November 29, 2006Publication date: May 28, 2009Inventors: Roland Huttinger, Stefan Jungst, Khanh Pham Gia, Steffen Walter
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Patent number: 7431628Abstract: A flat panel display device, a panel of a flat panel display device, and a method of manufacturing a flat panel display device, in which a sealing effect and a resistance to a pressure are increased, and sealing is performed using a glass frit are disclosed. In one aspect, the method includes forming at least a light emitting unit on a surface of a substrate, the light emitting unit including a plurality of light emitting elements, preparing a sealing member to be placed opposite the surface of the substrate, applying a glass frit to an opposing surface of either the substrate or the sealing member to be disposed around the light emitting unit, applying a sealant to the opposing surface of either the substrate or the sealing member to enclose the glass frit, combining the substrate and the sealing member via the sealant, and combining the substrate and the sealing member via the glass frit.Type: GrantFiled: November 18, 2005Date of Patent: October 7, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Jin-Woo Park, Dong-Soo Choi, Seung-Yong Song
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Publication number: 20080232105Abstract: A method of manufacturing a lighting module comprises: mounting one or more light emitting diode (LED) packages on a circuit board to define a lighting unit; and injection overmolding the entire lighting unit except the one or more LED packages using a single type of overmolding material. A lighting module comprises: one or more LED packages mounted on a circuit board; and an injection overmolding sealing the circuit board, the injection overmolding not having openings corresponding to piece holding pins, the injection overmolding not covering at least a light emitting portion of the one or more LED packages.Type: ApplicationFiled: June 25, 2007Publication date: September 25, 2008Inventors: Babi Koushik Saha, Jeffrey Nall, Chunmei Gao
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Patent number: 7423366Abstract: A lamp assembly includes a reflector body having an integral crimping portion that extends inwardly over a channel formed in the reflector body, a seal feature arranged within the channel, a cathode assembly having an edge feature extending into the channel, and a resilient member held in a state of compression between the crimping portion and a first surface of the edge feature such that an opposing second surface of the edge member is held against the sealing feature thereby creating a hermetic seal between the cathode assembly and the reflector body wherein the crimping portion is configured to remain in contact with the resilient member if the hermetic seal becomes non-hermetic.Type: GrantFiled: March 29, 2005Date of Patent: September 9, 2008Inventors: John M. Koelger, P. Guy Howard
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Publication number: 20080176479Abstract: A conductive element comprises a metal core and a coating, wherein the coating comprises at least one layer of aluminum, an aluminum alloy, an aluminide, silicon, a silicon alloy, a silicide, and combinations thereof, and wherein the at least one layer has a predetermined thickness. A method of making a conductive element comprises depositing a coating material on a metal core to form a coated metal core and heating the coated metal core to a predetermined temperature to form at least one layer of aluminum, an aluminum alloy, an aluminide, silicon, a silicon alloy, a silicide, and combinations thereof.Type: ApplicationFiled: March 28, 2008Publication date: July 24, 2008Applicant: GENERAL ELECTRIC COMPAMYInventors: Bernard Patrick Bewlay, Bruce Alan Knudsen, James Anthony Brewer, Melvin Robert Jackson
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Patent number: 7368869Abstract: A light emitting device includes a light emitting member formed on a substrate, a first blocking layer formed on the light emitting member and an absorbing layer interposed between the light emitting member or the first blocking layer. The first blocking layer prevents oxygen or moisture in air from permeating into the light emitting member generating light. The absorbing layer absorbs the oxygen or the moisture that passes through the first blocking layer. The light emitting device may have reduced volume and improved lifetime.Type: GrantFiled: November 30, 2004Date of Patent: May 6, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hoon Chung, Hoon Kim, Joon-Hoo Choi
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Publication number: 20080036372Abstract: Embodiments of the present invention may provide a light emitting device that include a substrate, a pixel portion on the substrate and a metal cap to enclose the pixel portion between the metal cap and the substrate.Type: ApplicationFiled: February 23, 2007Publication date: February 14, 2008Inventor: Jae Hyuk Lee
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Patent number: 7152433Abstract: A method of manufacturing an image display apparatus is provided and includes the steps of bringing panel members that constitute a display panel of the image display apparatus into a bake processing chamber, subjecting to bake processing the display panel members, lowering a temperature of the display panel members, and bringing the display panel members into a seal-bonding processing chamber. Seal-bonding processing is conducted by local heating to a seal-bonding portion.Type: GrantFiled: August 6, 2002Date of Patent: December 26, 2006Assignee: Canon Kabushiki KaishaInventor: Kohei Nakata
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Patent number: 7147532Abstract: A replaceable lamp header for positioning a lamp within a reflector assembly, includes a base member, a lamp engaging member extending from a first surface of the base member in which the lamp engaging member includes a proximal end and a distal end, a lamp receiving cavity defined in the lamp engaging member, and at least one fill hole defined in a proximal end of the lamp engaging member and extending through the lamp engaging member into the lamp receiving cavity.Type: GrantFiled: January 30, 2004Date of Patent: December 12, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jimmy Perez, John Lee, Andrew Lovvorn, Bob Sattem
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Patent number: 7135086Abstract: A glass substrate of a display panel onto which an organic electroluminescence (EL) element or the like is formed is sealed by affixing the glass substrate and a sealing glass via an adhesive therebetween. During this process, a pressure is applied between the glass substrate and the sealing glass so that a gap between the affixing surfaces achieves a target value and the adhesive is cured. The pressure is changed over time based on conditions such as the viscosity of the adhesive so that quick and precise sealing by the adhesive can be achieved.Type: GrantFiled: June 27, 2002Date of Patent: November 14, 2006Assignee: Sanyo Electric Co., Ltd.Inventor: Hideki Matsuoka
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Patent number: 7074104Abstract: A bulb-type fluorescent lamp has a case having an open end portion for housing a lighting circuit therein, an arc tube extending outside through the open end portion of the case, and a globe having an open end portion for housing the arc tube therein. An adhesive is supplied to the inner surface of the open end portion of the case at four circumferentially spaced areas, and the open end portion of the globe is inserted into the open end portion of the case. As a result, the globe is fixed to the case with the adhesive.Type: GrantFiled: December 10, 2003Date of Patent: July 11, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenji Itaya, Takeshi Matsumura, Yoshinori Kakuno
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Patent number: 7011562Abstract: An organic EL display panel has a multi-layered structure in which a first electrode and a second electrode are formed on a transparent panel and an organic EL layer is formed between the first and second electrodes. A method for sealing the organic EL display panel includes the steps of forming a buffer layer of an inorganic matter such as silicon oxide and silicon nitride on the transparent panel, and locating a shield cover on the buffer layer. Thus, adhesive strength between the panel and an adhesive is enhanced to prevent external humidity and oxygen from being permeated into the panel, thereby increasing life span of the display.Type: GrantFiled: July 28, 2003Date of Patent: March 14, 2006Assignee: LG Electronics Inc.Inventors: Chang Nam Kim, Jong Geon Yoon
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Patent number: 6875072Abstract: The high-pressure discharge lamp of the present invention includes: a discharge chamber that is formed in a silica glass tube, a pair of electrodes that are arranged with ends confronting each other in the discharge chamber; metal foil parts that are superposed and bonded to the other ends of the electrodes, and sealing sections for hermetically sealing the discharge chamber and which are parts for embedding the other ends of the electrodes and the metal foil parts in the glass at the two ends of the silica glass tube. The electrodes and the metal foil parts are embedded in the glass in a state in which metal coils are wrapped around the vicinities of the junctions of the electrodes and metal foil parts. The ends of the metal foil parts on the electrode side are further formed as tapered portions. In addition, the tips of the tapered portions on the electrode side are positioned, with respect to their direction of width, within the width in the radial direction of the electrodes.Type: GrantFiled: November 13, 2003Date of Patent: April 5, 2005Assignee: NEC CorporationInventor: Kazuhisa Nishida
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Patent number: 6821179Abstract: A method of manufacturing a hermetically sealed container includes the steps of providing a first substrate, a second substrate and an outer frame disposed between the first and second substrates, and bonding the first substrate to the outer frame and the second substrate to the outer frame to form a hermetically sealed space. A ratio W/T of width W and thickness of T of the outer frame is set to an aspect ratio A, with A≧1.5, and with the width W measured in a direction substantially parallel with planar surfaces of the first and second substrates.Type: GrantFiled: April 8, 2003Date of Patent: November 23, 2004Assignee: Canon Kabushiki KaishaInventor: Tomokazu Ando
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Patent number: 6790115Abstract: An arc tube and method of fabricating the arc tube for a discharge lamp. The arc tube includes an arc tube main body 10 at which a sealed glass bulb 12 serving as a discharge portion sandwiched by pinch seal portions is formed at a portion of a glass tube W along the longitudinal direction thereof, and a cylindrical shroud glass 20 which is welded on and integrated with the arc tube main body 10 so as to cover the sealed glass bulb 12, the front and rear end portions of the shroud glass 20 may be joined, for example, by welding on shroud glass welded portions with circular cross sections provided at the front and rear end sides of the arc tube main body 10, respectively.Type: GrantFiled: November 20, 2001Date of Patent: September 14, 2004Assignee: Koito Manufacturing Co., Ltd.Inventors: Kunio Fukai, Akihiro Nagata
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Patent number: 6695665Abstract: A sealing electrode for discharge lamp having electrically conductive cup, and an emitter pellet is disclosed. The cup seals a passage into the discharge lamp, and additionally supports the electrode pellet or tip for the discharge. The design enables the emitter, electrode and seal structure to be made separately off line, while also enabling the emitter to be protected from contaminants during subsequent assembly.Type: GrantFiled: March 17, 2003Date of Patent: February 24, 2004Assignee: Osram Sylvania Inc.Inventor: Daniel D. Devir
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Patent number: 6641449Abstract: A high pressure, lamp may be made in a pressure vessel by using an induction coil to melt an edge portion of a sealing wafer pressed against the circumference of an opening in the body of the lamp envelope. The pressure vessel and the lamp envelope are filled with desired fill materials. Induction heating is carried out by the induction coil and induction receiver that presses against the wafer, the lamp envelope or both to hold the melting piece or pieces in contact. The induction receiver may be fused to the lamp body forming a functional part of the overall lamp structure. The preferred resulting lamp includes a bonded metal piece that can be conveniently used for electrical or mechanical coupling or positioning of the lamp with respect to a base.Type: GrantFiled: April 24, 2001Date of Patent: November 4, 2003Assignee: Osram Sylvania Inc.Inventors: David W. Johnston, Ernest A. Davey, Jr., Gregory Zaslavsky, Dana L. Caldwell
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Patent number: 6520821Abstract: In a device encapsulation method, an organic EL device is formed on a substrate. An encapsulation cap is placed on the substrate to surround the device and thereafter an end face of the cap is welded on at least the substrate. A device package is also disclosed.Type: GrantFiled: May 12, 1999Date of Patent: February 18, 2003Assignee: NEC CorporationInventors: Ikuko Ishii, Yoshikazu Sakaguchi
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Publication number: 20020193034Abstract: To attain an increase in production speed and suitable for mass production in a substrate processing operation such as film formation requiring a hermetic atmosphere. A substrate processing method for performing a predetermined processing on a substrate is provided, which includes the steps of: arranging a surface of the substrate to be processed in a hermetic atmosphere; evacuating said hermetic atmosphere; and performing a predetermined processing on the substrate, in which the processing step is conducted after moving the evacuated hermetic atmosphere from the station for evacuation to a ifferent station.Type: ApplicationFiled: May 23, 2002Publication date: December 19, 2002Inventor: Jiro Ota
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Patent number: 6309272Abstract: A method for making an image forming apparatus includes an assembly of a first unit provided with an image-forming element and a second unit provided with electron emission devices. A bonding agent is provided at a bonding section of the first unit; the bonding agent is heated, and then the first unit and the second unit are bonded to each other. Alternatively, a bonding agent may be provided at a bonding section of the second unit; the bonding agent is heated, and then the electron emitting members of the electron emission devices are formed. After providing a bonding agent at a bonding section of the second unit, a spacer also may be provided between the bonding agent and the electron emission devices, and then the bonding agent may be heated. In addition, a bonding agent may be provided at a bonding section of the second unit, and then the bonding agent may be heated locally.Type: GrantFiled: December 17, 1998Date of Patent: October 30, 2001Assignee: Canon Kabushiki KaishaInventor: Michiyo Nishimura
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Publication number: 20010030509Abstract: The lamp consists of a hollow tubular body 1 with a closed end 2 and an open end 3. The body is of sintered ceramic material. A window 4 is sealed across the open end, the window and the body being united by a layer of frit 5. The window is of sapphire. Within the body is sealed an inert gas atmosphere 6 and a pellet charge of excitable material 7. In use, the lamp is subjected to RF electromagnetic radiation which heats it to 1000° C. causes it to emit visible light via the sapphire.Type: ApplicationFiled: December 14, 2000Publication date: October 18, 2001Applicant: Ceravision Technology LimitedInventors: Floyd R. Pothoven, Terry A. Pothoven
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Patent number: 6100640Abstract: A getter wire formed in a closed configuration in a vacuum sealed package is inductively heated until it evaporates, thereby forming a thin film on the inner walls of the package to getter gas molecules within the sealed package.Type: GrantFiled: May 20, 1998Date of Patent: August 8, 2000Assignee: Micron Technology, Inc.Inventors: David A. Cathey, Danny Dynka
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Patent number: 5965976Abstract: A high pressure gas discharge lamp and the method of making same utilizing integrated circuit fabrication techniques. The lamp is manufactured from heat and pressure resistant planar substrates in which cavities are etched, by integrated circuit manufacturing techniques, so as to provide a cavity forming the gas discharge tube. Electrodes are deposited in the cavity. The cavity is filled with gas discharge materials such as mercury vapor, sodium vapor or metal halide. The substrates are bonded together and channels may be etched in the substrate so as to provide a means for connection to the electrodes. Lamps having ignition enhancing and hot restrike features, as well as single-sided electrodes, are disclosed.Type: GrantFiled: December 19, 1997Date of Patent: October 12, 1999Assignee: Philips Electronics North America Corp.Inventors: Babar Ali Khan, David A. Cammack, Ronald D. Pinker, Jerry Kramer, Vivek Mehrotra
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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: 5876260Abstract: A method for assembling two parallel plates respectively forming the bottom and the face of a flat display screen including a degassing step of the plates and a vacuum burn-in step. The method includes the steps of subjecting a first plate to a burn-in step by electronic bombardment, moving under a vacuum the first plate so as to face a second plate, and assembling the two plates with a specific peripheral sealing joint.Type: GrantFiled: October 4, 1996Date of Patent: March 2, 1999Assignee: Pixtech SAInventors: Richard Pepi, Michel Garcia, Jean-Frederic Clerc, Olivier Hamon
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Patent number: 5813893Abstract: A method for fabricating a field emission display and the resulting display device are disclosed. The method includes the steps of arranging a sealing layer between a face plate and a substrate, heating the sealing layer until the substrate layer adheres to the face plate, and then pulling the face plate away from the substrate so that the vacuum is improved. The sealing layer may be constructed from glass and heated with a heating coil made from Ni-chrome wire. The elements can be positioned using industrial robots using common manufacturing techniques.Type: GrantFiled: December 29, 1995Date of Patent: September 29, 1998Assignee: SGS-Thomson Microelectronics, Inc.Inventor: Richard K. Robinson
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Patent number: 5807154Abstract: According to two aspects of the invention, a FED and a process for making a FED are provided which effectuate more accurate and efficient sealing between a faceplate and a backplate assembly, with more accurate and efficient sealing between the faceplate and cathode member. The FED is made according to a process including: aligning the faceplate and the cathode member; disposing an adhesive between the faceplate and the cathode member; pressing the faceplate and the cathode member together; disposing a frit seal between the faceplate and the backplate assembly; and heating the frit seal to a temperature sufficient to cause the frit to seal.Type: GrantFiled: December 21, 1995Date of Patent: September 15, 1998Assignee: Micron Display Technology, Inc.Inventor: Charles M. Watkins
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Patent number: 5796209Abstract: A high pressure gas discharge lamp and the method of making same utilizing integrated circuit fabrication techniques. The lamp is manufactured from heat and pressure resistant planar substrates in which cavities are etched, by integrated circuit manufacturing techniques, so as to provide a cavity forming the gas discharge tube. Electrodes are deposited in the cavity. The cavity is filled with gas discharge materials such as mercury vapor, sodium vapor or metal halide. The substrates are bonded together and channels may be etched in the substrate so as to provide a means for connection to the electrodes. Electrodeless RF activated lamps may also be fabricated by this technique. Micro-lasers may also be fabricated by this technique as well.Type: GrantFiled: October 27, 1994Date of Patent: August 18, 1998Assignee: Philips Electronics North AmericaInventors: Babar Ali Khan, David Alan Cammack, Ronald D. Pinker, Nikhil Ramesh Taskar
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Patent number: 5795207Abstract: A method is used for interfacing dissimilar materials in an X-ray tube. The X-ray tube includes a rotor assembly to distribute heat generated in the X-ray tube. The X-ray tube is sealed within a glass material which has a first expansion coefficient. An interface is provided between the rotor assembly and the glass material to absorb temperature coefficient stresses. Preferably, the glass material is Borosilicate and the interface comprises a metal material and a ceramic material. The ceramic material has a second expansion coefficient that closely matches the first expansion coefficient. The metal material is preferably Kovar, and the ceramic material is preferably Mullite. Temperature coefficient stresses are then absorbed within the ceramic and metal structure.Type: GrantFiled: October 31, 1995Date of Patent: August 18, 1998Assignee: General Electric CompanyInventors: James A. Blake, Jamie E. Lazzaro, James R. Dobbs
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Patent number: 5637960Abstract: To provide a tight seal for a fill bore in the wall or an end plug of a dharge vessel for high-pressure discharge lamps, a fill bore is provided either through the wall--in the region of the plug--or through a plug, and the fill bore is then closed by a stopper in combination with a melt sealing material, which is so chosen that the sealing material and plug-like member combination provide a minimum of sealing material exposed to the fill in the discharge volume. The fill in the discharge volume of the discharge vessel is ionizable and, for example containing halides, is highly corrosive to the sealing material. The lamp can be made by inserting a stopper into the filling bore, applying, with the stopper in place in the filling bore, sealing material to the outer end of the filling bore, and heating the portion of the discharge vessel to liquefying temperature of the sealing material to liquefy the sealing material and hence close off the fill bore.Type: GrantFiled: July 11, 1995Date of Patent: June 10, 1997Assignees: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH, NGK Insulators Ltd.Inventors: Stefan Juengst, Roland Huettinger, Jens Clark, Osamu Asano, Kouichiro Maekawa
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Patent number: 5624293Abstract: A high pressure gas discharge lamp and the method of making same utilizing integrated circuit fabrication techniques. The lamp is manufactured from heat and pressure resistant planar substrates in which cavities are etched, by integrated circuit manufacturing techniques, so as to provide a cavity forming the gas discharge tube. Electrodes are deposited in the cavity. The cavity is filled with gas discharge materials such as mercury vapor, sodium vapor or metal halide. The substrates are bonded together and channels may be etched in the substrate so as to provide a means for connection to the electrodes. Electrodeless RF activated lamps may also be fabricated by this technique. Micro-lasers may also be fabricated by this technique as well.Type: GrantFiled: June 6, 1995Date of Patent: April 29, 1997Assignee: Philips Electronics North America CorporationInventors: Babar A. Khan, David A. Cammack, Ronald D. Pinker, Nikhil R. Taskar
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Patent number: 5542867Abstract: A process for connecting a molybdenum foil to a lead portion with sufficient strength and reliability in which an expensive binder, such as platinum, platinum clad molybdenum, or the like, is not used. According to the invention, a carbon containing or carbon coated molybdenum part is placed between the molybdenum foil and the molybdenum lead portion and then the two are resistance welded to one another. Furthermore, a hermetically enclosed part of a lamp can be produced by this process.Type: GrantFiled: December 7, 1994Date of Patent: August 6, 1996Assignee: Ushiodenki Kabushiki KaishaInventors: Nobuyuki Hishinuma, Kenichi Hirose, Tatsushi Igarashi
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Patent number: 5509841Abstract: A planar fluorescent lamp lamp includes a first transparent cover bonded atop a metal body with a serpentine channel therein. The lamp body is coated with an insulative coating and the glass solder bead bonds the cover to the lamp at its perimeter and along the ridges defining the serpentine channel. An alternative embodiment of the lamp includes a second transparent cover bonded above the first transparent cover enabling the fluorescent material to be contained in a second enclosure, isolated from the source of light energy. A second alternative embodiment conceals the electrodes of the lamp beneath the lamp body and provides plasma slots to allow the concealed electrodes to energize the lamp. Another alternative embodiment utilizes a conductive transparent coating on the lamp cover to allow the lamp cover to supplement the lamp body as a cold cathode.Type: GrantFiled: April 4, 1995Date of Patent: April 23, 1996Assignee: Winsor CorporationInventor: Mark D. Winsor
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Patent number: 5505647Abstract: An image-forming apparatus comprising an envelope formed of a plurality of members, an electron source arranged within the envelope and an image forming member for forming images by irradiation of electron beams from the electron source is manufactured by heating the plurality of members to bond them together to produce the envelope in an atmosphere containing at least a gas selected from reducing gases, inert gases and non-reducing and non-oxidizing gases or in a vacuum. The electron source comprises preferably an electron-emitting element having a thin film for electron emission arranged between a pair of electrodes.Type: GrantFiled: January 28, 1994Date of Patent: April 9, 1996Assignee: Canon Kabushiki KaishaInventors: Yasue Sato, Ichiro Nomura, Hidetoshi Suzuki, Toshihiko Takeda, Naoto Nakamura, Yasuhiro Hamamoto
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Patent number: 5487689Abstract: An automation system for assembling photocathodes into vacuum tube housings is used to produce vacuum tube assemblies. Photocathodes are loaded and otherwise processed in a first evacuated chamber. Similarly, vacuum tube housings are loaded and otherwise processed in a second evacuated chamber. The first and second chambers are always interconnected as a common vessel, wherein the photocathodes from the first chamber are transferred into the second chamber by an automated transfer mechanism. Once in the second chamber, the photocathodes are joined to the vacuum tube houses in an automation process, creating the final product vacuum tube assemblies.Type: GrantFiled: August 15, 1994Date of Patent: January 30, 1996Assignee: ITT CorporationInventors: Richard F. Floryan, David D. Frisch
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Patent number: 5478266Abstract: A beam tube having a hole or "window" covered by a thin, beam permeable membrane is provided with a polymeric ring for minimizing stress concentration in the membrane adjacent the periphery of the hole to relieve stress concentrations that would otherwise occur when the membrane is forced inwardly into the hole by atmospheric or other pressure on the exterior of the tube. The exterior surface of the housing for the beam tube contains means for retaining the polymeric ring in a predetermined location on the exterior surface. The retaining means which retain the polymeric material away from the hole may comprise an annular channel formed in the exterior surface of the front wall, an annular raised inner ridge formed on the exterior surface, an annular raised outer ridge also formed on the exterior surface to define an annular track between the outer and inner ridges, or a ring of flow preventing material on the exterior surface of the housing.Type: GrantFiled: December 8, 1993Date of Patent: December 26, 1995Assignee: Charged Injection CorporationInventor: Arnold J. Kelly
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Patent number: 5438343Abstract: A gas discharge display and the method of making same utilizing integrated circuit fabrication techniques. The display is manufactured from heat and pressure resistant planar substrates in which cavities are etched, by integrated circuit manufacturing techniques, so as to provide individual pixels. Orthogonal electrodes are deposited on the substrates and extend into the cavities. The cavities are filled with gas discharge materials, such as plasma, upon energization of the electrodes the individual cavities forming the pixels may be individually activated.Type: GrantFiled: December 30, 1993Date of Patent: August 1, 1995Assignee: Philips Electronics North America CorporationInventors: Babar A. Khan, David A. Cammack, Ronald D. Pinker, Jerry M. Kramer
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Patent number: 5343117Abstract: An electrode feedthrough assembly for a ceramic arc tube of the type used in high pressure sodium arc lamps. The electrode feedthrough assembly is particularly useful in an external reservoir arc tube wherein an interior region of a feedthrough tube is utilized as a reservoir for the lamp fill material. The electrode feedthrough assembly includes a feedthrough tube, an electrode assembly attached to the feedthrough tube and a connection wire. The feedthrough tube has a closed end external to the arc tube. The feedthrough tube and the closed end thereof are formed in a single process, preferably by deep drawing, without welding, crimping or fusing. Passages to the interior of the feedthrough tube are provided by crimping the electrode support rod to the feedthrough tube with a six jaw crimping arrangement wherein two of the crimping jaws are shorter than the other four. The connection wire is attached to the feedthrough tube and includes a portion on the axis of the tube.Type: GrantFiled: April 19, 1993Date of Patent: August 30, 1994Assignee: OSRAM Sylvania Inc.Inventors: Elliot Wyner, Robert White, Semyon Makhlis, Ernest Davey, Jr.
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Patent number: 5340346Abstract: A double-ended arc discharge lamp includes a sealed, light-transmissive outer jacket, a light-transmissive shroud mounted within the outer jacket and directly supported by the outer jacket, and an arc discharge tube mounted within the shroud. The arc tube is typically a metal halide arc discharge tube. In a preferred embodiment, the shroud includes an outwardly flared portion at each end. The outwardly flared portions space the shroud from the outer jacket and support the shroud within the outer jacket. The outwardly flared portions of the shroud can be affixed to the outer jacket by fusing. The outer jacket can be provided with inwardly extending dimples for locating the shroud with respect to the outer jacket. In another embodiment, the outer jacket includes reduced diameter portions near each end which are attached to the shroud.Type: GrantFiled: December 20, 1993Date of Patent: August 23, 1994Assignee: Osram Sylvania Inc.Inventor: Martin M. Muzeroll
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Patent number: 5304083Abstract: The present invention relates to a light emitting device which emits light upon impingement of thermoelectrons on a front panel having fluorescent elements. In each bonding surface of a spacer which is bonded to both front and rear panels, a positional deviation or displacement of the spacer with respect to the front panel, the rear panel or a shielding electrode is prevented, whereby there is obtained a light emitting device of high accuracy free of variations in luminance, and it is made possible to reduce a dead space between adjacent light emitting devices and thereby attain a display of high resolution. In order to obtain such display, the front panel and the spacer, as well as the rear panel and the spacer, are respectively bonded through premolded frit glass.Type: GrantFiled: March 12, 1992Date of Patent: April 19, 1994Assignees: Ise Electronics Corporation, Mitsubishi Denki Kabushiki KaishaInventors: Sashiro Uemura, Yoshiyuki Nishii, Isamu Kanda, Kazunori Tatsuda, Yukiharu Seko, Hiroshi Kamogawa, Tokuhide Shimojyo, Zenichiro Hara, Nobuo Terazaki, Shunichi Futatsuishi, Kozaburo Shibayama, Shuji Iwata
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Patent number: 5288255Abstract: A high pressure discharge lamp having a translucent sintered aluminum oxide discharge envelope is produced by a method that includes providing a ceramic end plug having an aperture for a current lead-in member in an end of the envelope, sintering the end plug to the envelope and passing the current lead-in member through the plug so as to extend into the envelope, forming a thin disc-shaped sealing member formed of magnesium oxide containing glass frit and having an aperture for the lead-in member on the outer surface of the plug, positioning a thin barrier member having an aperture for the lead-in member on and extending over the outer surface of the sealing member and heating the assembly so as to cause the sealing member to melt and form a glass bond between the lead-in member and the plug and the barrier member to melt and bond to the glass seal.Type: GrantFiled: October 27, 1992Date of Patent: February 22, 1994Assignee: North American Philips CorporationInventors: Dale E. Brabham, Geert van Bockstal
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Patent number: 5270610Abstract: To connect a vitreous lamp bulb which has an essentially tubular extension 6) to a base lamp holding structure (2), the holding structure is formed with a cylindrical recess into which the tubular extension is fitted. The material of the lamp holding structure, or at least a portion adjacent the recess, is a high-temperature meltable plastic, and the extension portion is surrounded by a spiral spring or wire loops which, to attach the lamp to the base lamp holding structure, is subjected to a high-frequency electromagnetic field so that, by induction, the plastic surrounding the extension will melt, and embed the spiral or looped wires in the molten plastic while oozing towards the extension portion to securely grip the extension portion in the base lamp holding structure.Type: GrantFiled: May 1, 1991Date of Patent: December 14, 1993Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbHInventors: Walter Schoenherr, Fritz Eckhardt
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Patent number: 5201456Abstract: The invention concerns a process for assembly of two layers constituted of materials having different mechanical properties, and its application to hermetic enclosure of hybrid circuits.The process according to the invention to assemble a layer of a material M.sub.1 and a layer of a material M.sub.2 is characterized by the fact that it consists in interposing between the two layers an intermediate layer constituted of a mixture of the material M.sub.1 and the material M.sub.2. This mixture is preferably constituted of 25% to 75% by weight of the material M.sub.1 and 75% to 25% by weight of the material M.sub.2.The process according to the invention is particularly useful for the enclosure of integrated circuits and more particularly hybrid circuits, during the assembly of the metal can on the ceramic substrate bearing the circuit.Type: GrantFiled: October 10, 1991Date of Patent: April 13, 1993Assignee: Thomson-CSFInventors: Florence de Reynal, Dominique Coujard