Abstract: 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.
Abstract: A base body includes a first part and a second part, The second part has a lower thermal conductivity than the first part and is arranged adjacently to the first part. A first conductive film is formed on the first part and a second conductive film is formed on the second part. At least part of a gap is located above a boundary between the first part and the second part.
Type:
Application
Filed:
June 29, 2007
Publication date:
September 24, 2009
Applicant:
CANON KABUSHIKI KAISHA
Inventors:
Takuto Moriguchi, Koki Nukanobu, Takahiro Sato, Takeo Tsukamoto
Abstract: A thin resistive layer is connected in series and integrated with a light emitting device as a ballast to stabilize the current through the light emitting device.
Abstract: A thermal electron emission backlight unit includes: first and second substrates arranged parallel to each other; first and second anode electrodes respectively arranged on inner surfaces between the first and second substrates; wall frames adapted to seal an inner space between the first and second substrates; a movable spacer holder and a fixed spacer holder arranged inside the wall frames to face each other; a plurality of spacers arranged between the first and second substrates and adapted to maintain a gap therebetween, wherein ends of the spacers are coupled to the movable and fixed spacer holders; a plurality of cathode electrodes arranged across the spacers between the first and second substrates; and a phosphor layer arranged on the second anode electrode. The spacers include tension spacers adapted to provide tension between the movable and fixed spacer holders by pushing the movable spacer holder away from the fixed spacer holder. The first substrate is adapted to pass white light therethrough.
Abstract: A cement for bonding an arc tube body made of an aluminum nitride sintered body and an electrode support made of molybdenum achieves high gas tightness in the obtainable arc tube without impairing the excellent translucency of the aluminum nitride sintered body. The cement contains a molybdenum powder and an aluminum nitride powder, and the total amount of metalloid elements, rare-earth elements and metal elements (except the rare-earth elements and aluminum element) corresponding to the following conditions (1) and (2) is 300 ppm or less: (1) metal elements having a melting point of 2000° C. or lower, and (2) metal elements having an ion radius smaller than that of aluminum.
Abstract: A holding device for fixing a lamp bulb comprises at least one clip element, the clip element, referred to as the main clip, having a peripheral flange as a supporting surface, which is adjoined at its inner rim by a peripheral side wall with a given height H, which is preferably cylindrically shaped, its free end forming a closing-off cover, the cover having a clearance which is adapted to the portion of the lamp bulb that is to be fixed.
Type:
Grant
Filed:
December 13, 2004
Date of Patent:
June 23, 2009
Assignee:
Osram Gesellschaft mit beschraenkter Haftung
Abstract: A display device and a temperature control unit having the same are disclosed. The display device includes a substrate with a display element, and a transparent plate which is in contact with the substrate and has a larger area than that of the substrate.
Type:
Application
Filed:
March 12, 2008
Publication date:
May 28, 2009
Inventors:
Sang Tae Park, Myung Seop Kim, Jeong Dae Seo, Won Jae Yang, Hyun Ju Choi, Young Hoon Shin, Chang Ho Hyeon, Jong Moon Lee
Abstract: Positive and negative electrode needles, an air-blowing outlet, and a protection cover for covering these electrode needles and the air-blowing outlet are attached to an electrode cartridge which is attached to a housing, and an air-blowing hole positioned in front of the air-blowing outlet in a concentric manner therewith, for blowing out air from the air-blowing outlet toward the outside, and two air-flowing-out holes positioned in a concentric manner with the respective positive and negative electrode needles, and respectively surrounding outer peripheries of respective tip end portions of respective electrode needles via respective gaps for flowing out the air are formed in the protection cover.
Abstract: A light source device has an internal electrode (24) disposed at an end portion inside a bulb (23), and an external electrode (25) disposed outside the bulb (23). A holder member (27) holds the external electrode (25) so as to be opposed to the bulb (23) with a predetermined spacing (26). A dielectric member (30) is disposed outside the bulb (23), at a position corresponding to the internal electrode (24) so as to be interposed between the bulb (23) and the external electrode (25).
Abstract: A plasma display device including a chassis base, a plasma display panel coupled with a panel mounting surface of the chassis base, and reinforcing members that are integrally formed with the chassis base so as to project from a surface of the chassis base. The reinforcing members may be composed of bracket members, and the reinforcing members may project toward an opposite side of the panel mounting surface of the chassis base.
Abstract: A flexible barrier assembly having a flexible visible light-transmissive substrate having a Tg greater than or equal to that of heat-stabilized polyethylene terephthalate (“HSPET”) overcoated with a first polymer layer having a Tg greater than or equal to that of HSPET and further overcoated with at least two visible light-transmissive inorganic barrier layers separated by at least one second polymer layer having a Tg greater than or equal to that of HSPET can be used to mount, cover, encapsulate or form moisture- and oxygen-sensitive articles such as organic light emitting devices and light valves.
Abstract: A spacer for an electron emission display and an electron emission display containing the spacer. The spacer includes an insulating member having a predetermined shape, and at least one inner electrode laterally inserted into the insulating member. A portion of the inner electrode is exposed to an outer side of the insulating member. The electron emission display includes: an electron emission substrate having an electron emission region containing an electron emission device thereon; an image-forming substrate having an image forming region adapted to light from electrons emitted by the electron emission device; and at least one spacer for spacing apart the electron emission substrate from the image-forming substrate. At least one inner electrode is inserted into the spacer, and at least a portion of the inner spacer is exposed to the exterior of the spacer.
Abstract: A carbon nanotube device in accordance with the invention includes a support structure including an aperture extending from a front surface to a back surface of the structure. At least one carbon nanotube extends across the aperture and is accessible through the aperture from both the front surface and the back surface of the support structure.
Type:
Grant
Filed:
October 29, 2003
Date of Patent:
December 16, 2008
Assignee:
President and Fellows of Harvard College
Abstract: Parts-attaching grooves are formed at both side surfaces of an ionizer main body, and an auxiliary member for extending parts is detachably latched to the parts-attaching grooves. Parts, such as sensors, filters, and so forth are extended by means of the auxiliary member. The aforementioned parts attaching grooves are constructed such that a lower side groove wall is slanting in a gradually outside-down manner toward a groove opening side, and further the auxiliary member includes a projection edge for latching, at a tip end of left and right side walls, and the auxiliary member is attached to the aforementioned ionizer main body by means of elastically latching the projection edge to the aforementioned parts-attaching groove.
Type:
Grant
Filed:
November 29, 2006
Date of Patent:
December 16, 2008
Assignee:
SMC Corporation
Inventors:
Toshio Sato, Satoshi Suzuki, Gen Tsuchiya
Abstract: To prevent an irregular shift of an electron beam emitted from an adjacent electron emitting device when preventing electrification of a spacer covered with a resistance film by using the spacer. A spacer 3 is set along a row-directional wiring 5 connected to a plurality of electron emitting devices 8 of a first substrate and a resistance film 14 formed on the surface of the spacer 3 is brought into contact with and electrically connected to a conductive member 11 such as a metal backing on a second substrate 2 and the row-directional wiring 5 on the first substrate while the shape of the contact face between the resistance film 14 and the row-directional wiring 5 or the resistance film 14 and the conductive member 11 has a concave shape or convex shape to be almost symmetric with respect to the center line of the spacer 3.
Abstract: An organic light-emitting diode (OLED) device, comprising: a substrate; one or more OLEDs formed on the substrate comprising a first electrode formed over the substrate, one or more layers of organic material, one of which is light emitting, formed over the first electrode, and a second electrode formed over the one or more layers of organic material; a cover provided over the one or more OLEDs and spaced apart from the one or more OLEDs to form a gap; and separately pre-formed elastic compressible spacer elements located in the gap between the cover and the one or more OLEDs.
Abstract: A conductive material comprising a V2O5—P2O5 glass and a second phase dispersed in the V2O5—P2O5 glass, wherein the second phase contains a crystalline V and O compound and a crystalline metal phosphate compound. The crystalline V and O compound is at least one of V2O5, V4O9, V2O4, and V2O3. The metal phosphate compound is a phosphate compound of transition metal or alkaline-earth metal. In a visual display device, glass spacers are bonded to glass panels with the conductive material.
Abstract: A barrier rib structure of plasma display panel is disclosed. The barrier rib structure includes a plurality of vertical barrier ribs arranged in parallel, a plurality of first horizontal barrier ribs connected to one side of the vertical barrier ribs, and a plurality of second horizontal barrier ribs connected to the other side of the vertical barrier ribs, in which the first horizontal barrier ribs are disposed alternately with corresponding second horizontal barrier ribs for forming a plurality of double blockade structures. Additionally, a gas passage and a plurality of electrical discharge spaces are formed between the double blockade structures.
Abstract: A method for enhancing the luminance and uniformity of a flat panel light source provides a patterned reflective structure to reflect or deflect the light back onto the display area of a field emission display panel and lighten the area which used to be blocked by spacers. The patterned reflective structure may be designed in several places, such as between an end surface of a spacer and the inner surface of an anode substrate, or on the inner surface of the edges of the side-frame between the anode plate and the cathode plate by further coating a reflective material, or on the side-frames surrounding the panel by further coating a reflective material, etc. With such a patterned reflective structure, the luminance and uniformity of a flat panel light source are enhanced.
Type:
Grant
Filed:
November 17, 2005
Date of Patent:
October 14, 2008
Assignee:
Industrial Technology Research Institute
Inventors:
Cheng-Chung Lee, Ming-Chun Hsiao, Biing-Nan Lin, Wei-Yi Lin
Abstract: To allow an image display device which includes a plurality of distance holding members (spacers) which are arranged in the inside of a display region to acquire a prolonged lifetime, high brightness and high reliability while preventing charging of the spacers, a conductive film is arranged on a bottom surface of the spacer and the conductive film is covered with an adhesive material.
Abstract: According to one embodiment, a notebook PC includes a display unit, and a PC proper coupled to the display unit by hinges so that the PC can be opened and closed. The display unit includes a display panel, a case covering the back surface of the panel, and a reinforcing plate attached to and covers part of the outer surface of the case. The reinforcing plate enables the case of the display panel to be thinned and to have a sufficient rigidity.
Abstract: Broadband output high power pulsed flash lamps are useful in many applications, and when specifically optimized, can become an excellent source of ultraviolet (UV) light, which is particularly useful for photo-chemically-induced materials processing applications. Multiple factors involved with the production of high-energy light pulses can in certain cases adversely affect the ultraviolet lamp operation, thereby resulting in the development of micro cracks in lamp envelopes and subsequent limitation in lamp lifetime. Similar factors can be responsible for an increased absorption of UV radiation by lamp components and degradation of lamp efficiency. This invention describes new pulsed flash lamp designs that enable a new generation of high power and performance as required by, for example, many large-scale photo-processing applications.
Type:
Grant
Filed:
August 24, 2006
Date of Patent:
September 9, 2008
Inventors:
Robert M. Lantis, Boris Zlotin, Peter Ulan, Vladimir Proseanic, Gafur Zainiev
Abstract: A display device including a display panel, a chassis base connected to the plasma display panel, the chassis base supporting the plasma display panel, and a flexible printed circuit having a driver integrated circuit thereon installed on the chassis base while being pressed by a protective plate. A step structure is formed on the chassis base where the flexible printed circuit is attached. Furthermore, the flexible printed circuit area where the driver integrated circuit is placed may be in contact with a heat dissipating material located in an accommodating portion formed in the chassis base.
Abstract: A charged particle apparatus, with multiple electrically conducting semispheric grid electrodes, the grid electrodes mounted in a dielectric mounting ring, with hidden areas or regions to maintain electrical isolation between the grid electrodes as sputter deposits form on the grid electrodes and mounting ring. The grid electrodes are mounted to the mounting ring with slots and fastening pins that allow sliding thermal expansion and contraction between the grid electrodes and mounting ring while substantially maintaining alignment of grid openings and spacing between the grid electrodes. Asymmetric fastening pins facilitate the sliding thermal expansion while restraining the grid electrodes. Electrical contactors supply and maintain electrical potentials of the grid electrodes with spring loaded sliding contacts, without substantially affecting the thermal characteristics of the grid electrodes.
Type:
Grant
Filed:
August 18, 2005
Date of Patent:
August 19, 2008
Assignee:
Veeco Instruments, Inc.
Inventors:
Viktor Kanarov, Alan V. Hayes, Rustam Yevtukhov, Daniel Yakovlevitch
Abstract: A UV radiator has an essentially tubular discharge vessel designed to produce dielectric barrier discharges at one end and sealed in a gas-tight manner at both ends, and in each case at least one elongate inner and outer electrode which is oriented parallel to the longitudinal axis of the discharge vessel. If it is imagined that the tubular part of the discharge vessel is split into two equal halves by an imaginary longitudinal section, the at least one inner electrode is arranged on the inside of the first imaginary tube half, and the at least one outer electrode is arranged on the outside of the second imaginary tube half, and essentially diametrically with respect to one another. As a result, and as a result of the shape and number and arrangement of the outer electrode(s), directional radiation characteristics are achieved.
Abstract: A medium wattage (>175 W to 400 W) metal halide electric lamp is provided having a strapless mount structure for the light source capsule while reliably passing standard drop tests. The strapless mount structure includes a support clip attached at one end to the lower end of the arc tube press and at a second end to the stem wire or to a frame portion connected to the stem wire or to a portion of the main frame.
Type:
Application
Filed:
June 26, 2004
Publication date:
July 17, 2008
Applicant:
KONINKLIJKE PHILLIPS ELECTRONICS N.V.
Inventors:
Mary E. Fortuna, Mark W. Fellows, William T. Solsky
Abstract: A method manufactures an image display device including a rear plate having a plurality of electron emitting devices arranged thereon, a face plate arranged opposite the rear plate, an outer frame arranged between the rear plate and the face plate and supporting peripherals of the rear plate and the face plate, and a plurality of spacers arranged between the face plate and the rear plate. The method includes the steps of preparing the plurality of spacers preliminarily, measuring heights of the plurality of spacers prepared by the preparing step individually, deciding an order of arranging the spacers on the basis of the measured heights obtained in the measuring step, and arranging the spacers in the order decided in the deciding step.
Abstract: The present disclosure includes field emission device embodiments. The present disclosure also includes method embodiments for forming field emitting devices. One device embodiment includes a housing defining an interior space including a lower portion and an upper portion, a cathode positioned in the lower portion of the housing, a elongate nanostructure coupled to the cathode, an anode positioned in the upper portion of the housing, and a control grid positioned between the elongate nanostructure and the anode to control electron flow between the anode and the elongate nanostructure.
Abstract: A method for making barrier arrays for use in flat panel displays includes the following steps: providing a metal plate; using photolithographic etching of the metal plate to form a shadow mask (21) having a number of openings defined therethrough according to a pixel pattern of a flat panel display; and forming an insulative layer (31) on the shadow mask. The technology for making a shadow mask is mature. In addition, a thickness and a material of the shadow mask can be selected according to the requirements of the flat panel display desired. Furthermore, the thickness and the material of the insulative layer can be determined according to the insulative performance required for the flat panel display. In summary, the present invention provides a barrier array having high precision at a low production costs. The barrier arrays are suitable for mass production in an environmentally friendly manner.
Type:
Grant
Filed:
March 26, 2004
Date of Patent:
February 26, 2008
Assignees:
Tsinghua University, Hon Hai Precision Industry Co., Ltd.
Inventors:
Zhaofu Hu, Pijin Chen, Liang Liu, Shou Shan Fan
Abstract: In an organic EL display device comprising a substrate, a plurality of pixel regions in each of which a first electrode, a light emitting material layer, and a second electrode are laminated in this order above the substrate, and a bank film formed above the substrate to separate respective one of the pixel regions from another of the pixel regions adjacent thereto, wherein the bank film has a plurality of openings exposing upper surfaces of the first electrodes to the light emitting material layers in the respective pixel regions, and the second electrode is formed over the a plurality of openings of the bank film in common with the pixel regions, the present invention forms the bank film of an inorganic material and shapes a side wall thereof lying around each of the openings thereof to be sloped at an angle less than 85 degrees (°) with respect to a principal surface of the substrate in order to prevent the deterioration of the light emitting material layer and disconnection of the second electrode at step
Type:
Grant
Filed:
March 20, 2006
Date of Patent:
February 19, 2008
Assignee:
Hitachi Displays, Ltd.
Inventors:
Kazuhiko Kai, Masaaki Okunaka, Naoyuki Ito
Abstract: An organic light-emitting diode lighting apparatus having an organic light-emitting diode lamp having a thermally conductive mounting member having a mounting surface on a first side and second light-emitting surface and a thin-film light-emitting structure adjacent the second light-emitting surface, the thin-film light-emitting structure comprising an anode, a light-emitting layer, and a cathode, and a thermally conductive mounting fixture having a thermally conductive mounting surface on which the thermally conductive mounting member is secured such that there is substantially continuous thermal contact across the mounting surface.
Abstract: A spacer supporting structure includes: a plurality of bar-shaped spacers adapted to maintain a gap between two panels; a first supporting member adapted to fix an end part of the spacer, the first supporting member being arranged on an edge of one of the two panels; a second supporting member arranged on another edge of the one of the two panels; and a plurality of elastic members arranged on the second supporting member, the plurality of elastic members adapted to apply a tensile force to the respective spacers by being coupled to the second ends of the spacers.
Abstract: A plasma lighting bulb is disclosed. The plasma lighting bulb includes a bulb emitting light, being formed of a transparent material, and having a plurality of grooves having a predetermined depth formed on a surface of the bulb, and a metal formed in the grooves, wherein a cross-section of the grooves is formed of one of a semicircular shape, a V-shape, and a polygonal shape.
Type:
Grant
Filed:
March 24, 2004
Date of Patent:
December 25, 2007
Assignee:
LG Electronics Inc.
Inventors:
Seung Min Lee, Byoung Chul Min, Young Hwan Choi
Abstract: In a fluorescent display tube, a metal spacer is used as a height sustaining member and a fixing member of linear member so that the fixing strength of the linear member in the lengthwise direction is increased. In the fluorescent display tube, both ends of filament and Al wires are bonded onto a cathode electrode formed on a substrate by ultrasonic bonding. The ends of the filament are embedded in a part in the Al wires in the shape of being bent into a letter Z or an inverted letter Z to form fixing portion.
Abstract: An image forming device includes a rear plate having a conductor set to a low voltage, an electron emitter disposed on the rear plate, the electron emitter including the conductor, and a face plate having an electrode set to a high voltage and facing the rear plate. An image forming source is provided on the face plate and includes the electrode. A spacer is electrically connected to the conductor and the electrode and includes an insulating substrate having a first end surface facing the rear plate, a second end surface facing the electrode, and side surfaces connecting the first end surface and the second end surface. A first high-resistance film covers the side surfaces of the insulating substrate, and a second high-resistance film covers at least one of the first end surface and the second end surface of the insulating substrate and has a sheet resistance greater than or equal to a sheet resistance of the first high-resistance film.
Abstract: In a light emitting module arranging therein a plurality of LEDs, each LED includes: an LED chip; and an anode connected to the LED chip. The anode includes: a support surface supporting the LED chip; and an extending part extending with respect to the support surface, and the extending parts in the plurality of LEDs separate from each other.
Abstract: A self-adhesive frame is applied in package of field emission display, the manufacturing method for the same and the package method by the same being also discussed in the specification. The self-adhesive frame can be designed as an independent component and suitable to be manufactured independently. The cathode plate and the anode plate do not need to join the process of pre-heating of the self-adhesive frame. The self-adhesive frame also has a plurality of fixing side strips for alignment of temporary fixing of the cathode plate and the anode plate. Wherein the fixing side strips do not increase the void area of the field emission display. The self-adhesive frame comprises: a main body frame having the cathode plate sealing surface and the anode plate sealing surface; and a fixing side strip extending from the outer side of the main body frame.
Type:
Grant
Filed:
October 22, 2003
Date of Patent:
October 23, 2007
Assignee:
Teco Nanotech Co., Ltd.
Inventors:
Frank Yang, Guo-Hua Chen, Jin-Shou Fang, Kuei-Wen Cheng
Abstract: In accordance with the invention, a field emission device is made by providing the device electrodes, forming a plurality of corrugated insulating rods with discontinuous coatings of conductive or semiconductive material with low secondary electron emission coefficient, adhering the rods to an electrode, cutting the rods to define corrugated pillars, and finishing the device. The result is low cost production of a field emission device having superior resistance to breakdown in high field operation.
Type:
Grant
Filed:
December 16, 1996
Date of Patent:
September 11, 2007
Assignee:
Lucent Technologies Inc.
Inventors:
Sungho Jin, Gregory Peter Kochanski, Wei Zhu
Abstract: The invention relates to the field of lamps. An incandescent electric lamp comprises a bulb (100), current-conducting supply wires (103, 104), a filament (105) having turns (A to H) arranged in spiraling fashion around an axis of revolution (102), one end (105a) of the filament being connected to the conductor wire (103), a metal support (108) of which one end (108a) is connected to the conductor wire (104) and the other end (108b) is connected to the other end (105b) of the filament, and a metal bracket (109) which is in electrical contact with one of the ends or one of the turns of the filament and which comprises a substantially straight portion parallel to the axis of revolution of the filament and situated below the filament when the lamp is in its normal operating position. The metal bracket is, for example, at the potential of the end (105a).
Abstract: The elongate bulb (1) of the lamp, which defines a longitudinal axis (A), is closed at opposite ends by sealing parts (6; 32), with in each case one cap being fitted at one end, the cap having an electrical contact element (13; 25) which is connected in an electrically conductive manner to a supply conductor (15; 21) leading to a luminous means, the contact element being accommodated in a tubular extension (11; 22) of the sealing part; the contact element (13; 25) has an attachment part (14; 24) which is directed inward toward the lamp interior and is equipped with at least two barbs (20; 26) which are in contact with the tubular extension (11; 21).
Abstract: A plasma display panel including a first panel, address electrodes formed on the first panel in a predetermined pattern, a first dielectric layer formed on the first panel and covering the address electrodes, a partition structure having unit partitions discontinuously formed on the first dielectric layer to partition a discharge space, the unit partitions being parallel to the address electrodes and each having auxiliary partitions, red, green and blue phosphor layers coated in the partitioned discharge space, a second panel, which is coupled to the first panel to form the discharge space and which is transparent, a plurality of pairs of sustaining electrodes formed on an inner surface of the second panel and having sets of first and second electrodes at a predetermined angle with respect to the address electrodes, and a second dielectric layer formed on the second panel and covering the sustaining electrodes.
Abstract: A lamp includes a reflector including a reflective portion, a heel, and a nose, wherein the nose includes an opening. A light source is disposed in the reflector. A pair of leads connects to the light source. An eyelet protrudes through the opening in the nose and receives one of the leads. A positioning member is disposed in the heel portion of the reflector. The positioning member includes an opening to receive the light source.
Abstract: To provide a display device having the long lifetime and the high reliability by preventing the generation of a spark or a dark current between terminals of cathode lines and an anode, a shielding member is arranged between the terminals of the cathode lines and the anode so as to ensure shielding between the terminals and the anode.
Abstract: An electron emission display device includes first and second substrates facing each other with a predetermined distance therebetween, an electron emission unit formed at the first substrate, and an image display unit formed at the second substrate. A grid electrode is disposed between the first and the second substrates and has a plurality of beam guide holes arranged in a first predetermined pattern, and spacer insertion holes arranged in a second predetermined pattern. Spacers are inserted into the respective spacer insertion holes of the grid electrode, and are fitted between the first and the second substrates. The size of each of the spacer insertion holes is larger than the outer size of each of the spacers.
Abstract: A mounting structure for an arc tube within an outer envelope of an HID lamp, including an elongated frame supported at one end by a stem assembly and a stem clamp having one or more frame retaining tabs crimped around a portion of the frame.
Abstract: In an active matrix substrate, the substrate includes a pixel region and a peripheral region surrounding the pixel region. A plurality of adhesive layers arranged to form a matrix having rows and columns are arranged in the pixel region, and pluralities of active elements are formed, respectively, on the plural adhesive layers. A spacer layer is formed in the peripheral region, and a uniform pressure is applied between the active element and the adhesive layer in performing the transfer.
Abstract: A multi-functional shroud/arc tube support or clip (40a) for a high intensity discharge lamp (10). The support (40a) has one end (42) formed to engage a shroud (20). The one end (42) is formed as an arcuate member (43). A middle portion (44) is formed of separated, depending legs (46, 48) defining a space (50) therebetween for clasping the substantially rectangular pinch seal (52) of a quartz arc tube (14). The central section (53) is formed to clasp the cylindrical capillary (54) of a ceramic arc tube (14a). The central section (53) comprises the bight of a pair of U-shaped legs and the bights are provided with opposing, substantially hemi-cylindrical concavities (53a).
Abstract: Methods for connecting electrical potential to an extractor cup at the cathode of a miniature x-ray tube are disclosed. The various connection schemes are designed to form a rugged and conveniently manufacturable connection between the metal extractor cup and one side of the cathode filament, so that the extractor cup shapes the path of electrons as desired en route to the anode of the tube. Some of the disclosed connections involve evaporation of conductive metal or other materials off the filament when the filament is first activated. Others involve applying a paste or paint conductive precursor directly to a base to connect a post and the extractor, the paste being heat-cured after the completion of assembly. Others involve a fine wire or spring strip from one filament post to the walls of the extractor cup. Other schemes include welded or brazed wires or foil, crimping, pinching, swaging and other connections, all made inside the tube enclosure.
Type:
Grant
Filed:
November 30, 2005
Date of Patent:
October 31, 2006
Assignee:
Xoft, Inc.
Inventors:
Paul A. Lovoi, Petre H. Vatahov, Earl E. Dozier, Peter C. Smith, Leonard Reed, Robert G. Neimeyer
Abstract: Methods for connecting electrical potential to an extractor cup at the cathode of a miniature x-ray tube are disclosed. The various connection schemes are designed to form a rugged and conveniently manufacturable connection between the metal extractor cup and one side of the cathode filament, so that the extractor cup shapes the path of electrons as desired en route to the anode of the tube. Some of the disclosed connections involve evaporation of conductive metal or other materials off the filament when the filament is first activated. Others involve applying a paste or paint conductive precursor directly to a base to connect a post and the extractor, the paste being heat-cured after the completion of assembly. Others involve a fine wire or spring strip from one filament post to the walls of the extractor cup. Other schemes include welded or brazed wires or foil, crimping, pinching, swaging and other connections, all made inside the tube enclosure.
Type:
Grant
Filed:
March 13, 2004
Date of Patent:
October 31, 2006
Assignee:
Xoft, Inc.
Inventors:
Paul A. Lovoi, Petre H. Vatahov, Earl E. Dozier, Peter C. Smith, Leonard Reed, Robert G. Neimeyer
Abstract: An image display device of a high quality, in which the variation of heights between adjoining spacers is reduced by measuring the heights of spacers to arrange the spacers from the end in the sequential order of heights so that the mechanical precision of the spacers need not be strictly managed.