Abstract: An electromagnetic power device includes a base forming a guide section, a stator on which an electromagnet is mounted, a mover that is guided by the guide section to reciprocally and linearly move and carrying a permanent magnet, a crankshaft to which the mover is coupled by a link, and a control unit electrically coupled to the electromagnet to energize the electromagnet in a controlled manner whereby the electromagnet generates a variable magnetic field that interacts with a fixed magnetic field of the permanent magnet to move the movers toward/away from the stator. The linear movement of the mover is converted into rotary motion of the crankshaft by the link.

Abstract: A stator core having twelve stator poles, coils wound around the stator poles, and a hybrid type rotor are included. The stator poles inwardly and radially extended from an annular yoke portion. Each of the respective stator poles has inductors of the same number. The coils are connected so that a pair of the stator poles being substantially symmetric with respect to a point are excited in opposite polarities. The rotor is arranged with a predetermined air gap with respect to the inductors, the rotor has a pair of rotor cores each of which has rotor teeth facing to the inductors and a permanent magnet magnetized in the axial direction sandwiched therebetween. The angles between inductors at the corresponding positions of adjacent stator poles are defined by repeating three sets of angular distributions each of which includes three times of 29.1 degrees and one time of 32.7 degrees when a number of rotor teeth equals 100.

Abstract: A compact, highly accurate and inexpensive brushless motor is disclosed. A bearing is fixed to the inner periphery of a cylindrical portion of a housing, and a shaft is rotatably inserted through the bearing to cover the housing. A yoke arranged at the forward end of the cylindrical portion of the housing is fixed on the shaft. In this configuration, the bearing is arranged at a position on the inside of the yoke, and therefore the motor can be reduced in size to the extent of superposition between the yoke and the housing. The bearing is fixed to one member of the housing, and therefore a high accuracy is realized.

Abstract: An electric machine includes a housing defining a stop therein and an end shield coupled to the housing. The machine also includes a non-segmented stator or a segmented stator. In either case, the stator is captured between the end shield and the stop within the housing. The stator includes a first end portion abutting against the stop. The stop is configured to maintain contact with the stator even during operation of the machine to thereby restrain movement of the stator relative to the housing.

Abstract: An electric machine includes a housing, an end shield, a stator, and a rotor assembly. The end shield can define at least one pin, and the stator can define at least one track. The stator can be positioned on the end shield such that the pin is received within the track. The stator can be captured between the end shield and a stop within the housing. The rotor assembly can include an adaptor sleeve and/or a bearing with a plurality of steel rolling elements. End caps can be coupled to the stator, and power and control electronics can be integrated within the housing.

Abstract: A motor includes a stator including a rim portion and a central portion, with the rim portion including through holes and the center portion including a through opening. A rotor installed in the through opening of the stator includes at least one rotational shaft extending from a rotating center of the rotor, such that the rotor rotating as a result of electrical interaction between the stator and the rotor. A first bracket of the motor includes fastening bars that pass through the through holes of the stator, and include elastically deformable elastic fingers. A second bracket of the motor includes fastening holes formed in positions corresponding to the fastening bars of the first bracket and engaging the elastic fingers of the fastening bars.

Abstract: A housing assembly 30 is provided for a permanent magnet motor. The housing assembly includes a ferrous flux ring structure 38 having an exterior 39 and an interior 36. Magnet structure 34 is carried within the interior of the flux ring structure 38. A plastic housing 32 substantially encapsulates the exterior of the flux ring structure 38 and at least portions of the magnet structure 34. A bearing 42 may be provided in a closed end of the housing 32.

Abstract: A permanent magnet type electric rotating machine comprises a stator having a distributed winding and a permanent magnet rotor, wherein the permanent magnet rotor is provided with a wind passage in an axial direction thereof.

Abstract: An electric machine includes a segmented or non-segmented stator and an end shield defining at least one opening therein. The machine also includes at least one winding having a lead end and an exit end, and at least one end cap coupled to the stator. The end cap defines first and second grooves which are respectively engaged with either the lead end or exit end of the winding. The end cap guides the lead and exit ends through the opening in the end shield.

Abstract: Slot armor for a generator rotor comprising a pair of L-shaped components each having height, width and thickness dimensions determined by a space between a field winding and an adjacent wall of a radial slot in the rotor, the L-shaped components constructed of a powder-coated metal.

Abstract: A component for an electrical machine has a body having a T-shaped cross section including rib and a head, and a front side located diametrically opposite to the head and oriented parallel to the latter, and also provided with a front recess which is substantially symmetrical around an axis of symmetry and extends longitudinally.

Abstract: A stator of an electrical motor has a polygonal border, a rotor opening, a plurality of channels arranged on a periphery of the rotor opening and having distances from a side defined by a shortest distance between a base of a respective one of the channels and the border, and openings provided in a region between a periphery of the rotor opening and the border and having therebetween distances defined by a shortest distance between the base of the channels and the border, the channels being arranged so that corresponding distances are selected from the group consisting of a distance from the side is substantially a maximum and a distance between one of the channels and a respective one of the openings is greater than or substantially equal to the distance from the side, the distance between one of the channels and a respective one of the openings is substantially a maximum and the distance from the side is greater than or substantially equal to the distance between the one channel and the respective one of th

Abstract: Sub core sections are arranged at the end portions and the center portion of a stator core, and strand conductors are twisted and transposed by 360 degrees continuously toward the extending direction of winding slot. The length corresponding to transposition pitch 180 degrees of the strand conductors of the stator core is set as one core unit area, the sub core sections including portions whose space factors are different are arranged such that the sum of voltages in the strands induced in the strand conductors in the odd-numbered core unit area from one end portion of the stator core offsets the sum of voltages in the strands induced in the strand conductors in the even-numbered core unit area from the end portion of the core.

Abstract: An electric machine includes an end shield and a stator. The stator may be a segmented stator or a non-segmented stator. At least one track is defined by either the stator or the end shield, and at least one pin is defined by the other one of the stator and the end shield. The stator is positioned on the end shield such that the pin is slidably received within the track.

Abstract: Machines useful for wind turbine and ship propulsion purposes include a wind turbine generator or a ship propulsion motor with two concentric air gaps. In one embodiment, the machine includes a rotor with an inner rotor core and an outer rotor core; and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core.

Abstract: A flat board type brushless DC motor is invented comprising a stator core having a laminated flat core structure of a ring type which is slotted a constant distance slot for installing the teeth core and winding the exciting coil on the inner or outer circumference of a stator core circle. The teeth core has a constant thickness with a certain number of teeth. The rotor faced against the stator is consisted of the rotor shaft, the circular flat rotor frame fixed on the motor shaft and assembled with even number of the N- and S-permanent magnets on the circle flat rotor of the flat type brushless and synchronous motor.

Abstract: Provided is a small motor superior in weight/torque balance. A phase stator 10 and B phase stator 12 are disposed to face each other. A rotor is interpositioned between these stators. Electromagnetic coils @ are provided to the stators evenly in the circumferential direction. A permanent magnet is provided to the rotor evenly in the circumferential direction. The exciting polarity of the electromagnetic coil is alternately opposite, and this is the same for the permanent magnet. A signal having a prescribed frequency is input to the A phase electromagnetic coil and B phase electromagnetic coil. The rotor rotates between the stators as a result thereof.

Abstract: A micromechanical element described includes a vibrating system having a vibrating body and an elastic suspension by means of which the vibrating body is suspended to be able to vibrate, and an adjuster for adjusting a resonant frequency of the vibrating system by applying a voltage difference between at least one part of the vibrating body and at least one stationary electrode.

Abstract: A boundary acoustic wave device includes a dielectric substance that is laminated on one surface of a piezoelectric substance, an IDT and reflectors used as electrodes are disposed at a boundary between the piezoelectric substance and the dielectric substance, and the thicknesses of the electrodes are set such that the acoustic velocity of the SH type boundary acoustic wave is less than that of a slow transverse wave propagating in the dielectric substance and than that of a slow transverse wave propagating in the piezoelectric substance, so that a boundary acoustic wave device is formed.

Abstract: An ultrasonic transducer comprises: a piezoelectric member which is provided with electrodes on both plane portions and which is fixed and disposed such that part of an acoustic matching layer protrudes at a predetermined position of the hard layer which makes up the acoustic matching layer; and a substrate which is formed with an electroconductive pattern and which is fixed and disposed on the face of the hard layer; wherein with such a disposed state, the piezoelectric member and the substrate are divided to array the plurality of piezoelectric devices; and wherein the electroconductive pattern of the substrate, and at least part of the electrodes of the piezoelectric member which is electrically connected to at least part of this electroconductive pattern are directed in the same direction, this substrate is disposed adjacent to the piezoelectric member, and the electroconductive pattern on the substrate and the electrodes of the piezoelectric member, which are divided, are electrically connected via an el

Abstract: Stackable and interlocking carrying cases in which to transport rack mounted electronics of the kind having particular application at a mobile tactical command and control center. A plurality of carrying cases are stacked one above the other to form columns suitable for transport on a pallet and for making a modular desk or table to be located in a tent or similar enclosure for use by command and control center personnel. Each carrying case has a pair of detachable side panels that are adapted to be connected side-by-side one another to form a substantially flat working surface for use as a removable top to extend across a pair of columns of carrying cases. Each of the pair of detachable side panels carries a pair of support bars that are rotatable so as to extend between and thereby connect the side panels together so as to be capable of holding the usual office equipment and supplies.

Abstract: An energy converter according to the present invention includes a filament 11 for converting given energy into electromagnetic waves and radiating the waves, and a radiation suppressing portion for suppressing some of the electromagnetic waves (e.g., infrared rays), which have been radiated from the filament 11 and of which the wavelengths exceed a predetermined value. The radiation suppressing portion has a bundle 12 of fine wires 12a, of which the axial direction is aligned with a direction in which the electromagnetic waves propagate with their radiations suppressed.

Abstract: It is an object of the present invention to provide a light source apparatus capable of reducing the production cost and increasing productivity. A light source apparatus comprises an approximately spherical discharge container, sealing portions continuously formed from both ends of the discharge container respectively, and a concave reflection mirror disposed so as to surround the discharge lamp, wherein the concave reflection mirror has a spheroidal surface or paraboloid of revolution formed from a front opening edge thereof, a sealing portion receiving section is formed at a head section of the concave reflection mirror and has a flat inner bottom surface, in which an end of one of the sealing portions is received, and an end surface of an end portion of the one of the sealing portions and the inner bottom surface of the sealing portion receiving section are brought into contact.

Abstract: An electrodeless discharge lamp has a magnetic core 3, an induction coil 5, and a fixation member 7. The fixation member 7 has an elongation portion 7b extending in a direction along an axial line of the magnetic core 3, a holding portion 7c for holding the magnetic core 3 positioned closer to the magnetic core 3 than the elongation portion 7b, and hook portions 7d and 7e to which a winding wire 7 is hooked so as to be inflected. The hook portions 7d and 7e positioned away from a boundary between the holding portion 7c and magnetic core 3 toward the elongation portion 7b by a distance between once and twice of a diameter of the winding wire.

Abstract: Radiation emitting structures that include an active radiation emitter and a passive photonic crystal structure surrounding the emitter are disclosed. The passive photonic crystal structure is transparent to wavelengths of electromagnetic radiation within the visible region of the electromagnetic spectrum. Also disclosed are incandescent lamps that include such radiation emitting structures.

Abstract: A light source comprises a matrix of micro-filaments able to emit light by incandescence when powered by an electrical current. According to the invention, on the matrix electrical and/or mechanical connections are obtained by means of agglomerations of carbon nanotubes at least partially ordered with respect to each other.

Abstract: Fluorescent material for display unit (1) comprising fluorescent substance matrix particles (2) constituted substantially of zinc sulfide of crystal structure composed mainly of, for example, hexagonal crystal or cubic crystal. First activator (3) is localized in surface layer part (2a) of the fluorescent substance matrix particles (2). Second activator is uniformly dispersed in the fluorescent substance matrix particles (2). The color of light emitted from a fluorescent substance of zinc sulfide having a crystal structure of, for example, hexagonal crystal can be improved by such a particle structure. Alternatively, unwanted light emission attributed to an electron beam on the low voltage side of the fluorescent substance for display unit (1) can be suppressed.

Abstract: The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of the PDP. The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R, 110G, 110B) in color corresponding to each discharge cell are allocated, and phosphor layers (110R, 110G, 110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) is 2/1 to 2.09/1 at least at the proximity of the surface, and the layer is positively charged or zero-charged.

Abstract: A lighting apparatus for emitting white light including a semiconductor light source emitting radiation with a peak at from about 250 nm to about 500 nm; a first phosphor having a peak emission between about 450 and 550 nm; and a second phosphor having a peak emission between about 615 and 670 nm; wherein the overall emission spectrum of the lighting apparatus has a depression between about 550 and 615 nm, said depression extending to between about 5% and 25% of the highest intensity of the emission spectrum of the lighting apparatus in the region from 400 to 700 nm. In this apparatus, the red-green color contrast is increased versus the referent illuminant.

Abstract: An electrodeless lamp (10a), wherein the lamp comprises a closed-loop, tubular lamp envelope (13) with parallel cylindrical glass tubes (14a 16a) containing an arc generating and sustaining medium, means (20a) in the form of magnetic toroids for energizing the medium; and a reflector coating (22) associated with the envelope (13) and affixed thereto. In a preferred embodiment of the invention the reflector coating (22) is on the internal surface (24) of the envelope and comprises a layer of a reflective m, such as alumina. Alternatively, the reflective coating (22) can be applied to the external surface of the envelope.

Abstract: A semiconductor light emitting device comprises: a semiconductor light emitting element that emits light of a first wavelength; at least two kinds of phosphors that absorb the light of the first wavelength and then emit wavelength-converted light; sealing resin in which the at least two kinds of phosphors are dispersed and the semiconductor light emitting element is embedded; and binder resin. Combined bodies in which the at least two kinds of phosphors are combined by the binder resin are dispersed in the sealing resin.

Abstract: In accordance with the present invention, a dielectric barrier layer is presented. A barrier layer according to the present invention includes a densified amorphous dielectric layer deposited on a substrate by pulsed-DC, substrate biased physical vapor deposition, wherein the densified amorphous dielectric layer is a barrier layer. A method of forming a barrier layer according to the present inventions includes providing a substrate and depositing a highly densified, amorphous, dielectric material over the substrate in a pulsed-dc, biased, wide target physical vapor deposition process. Further, the process can include performing a soft-metal breath treatment on the substrate. Such barrier layers can be utilized as electrical layers, optical layers, immunological layers, or tribological layers.

Abstract: A method for packaging a light emitting device, in which a primary light generator, such as a light emitting diode semiconductor die or laser diode, is attached to a lead frame and covered with a body of phosphor material so as to form a predetermined thickness of phosphor material covering the primary light generator. The body of phosphor material may be contained in a substantially transparent container or preformed, compressed disc. The resulting light emitting device has a primary light generator covered by phosphor material that is constrained to have a predetermined thickness.

Abstract: Disclosed is a multi-typed plasma display panel for preventing internal penetration of a seal line by forming a barrier rib in a vertical direction, in a horizontal direction or in both directions. In the multi-typed plasma display panel, a barrier rib is formed according to a cross-section in a vertical direction, in a horizontal direction or in both directions so that a seal line of the cross-section is prevented from being penetrated internally. In the horizontal direction, an auxiliary barrier rib may be further formed outside the barrier rib. Additionally, a dielectric of the rear panel is removed as large as an area separated from the cross-section in a predetermined distance so that the seal line may be formed in a condition where a glass is exposed.

Abstract: A plasma display panel with improved brightness and luminous efficiency is disclosed. The plasma display panel according to one embodiment comprises a rear substrate, a front substrate offset from the rear substrate, barrier ribs disposed between the front substrate and the rear substrate, discharge cells partitioned by the barrier ribs, discharge electrode pairs extending in a first direction across the discharge cells, address electrodes that extend across the discharge cells in a second direction that intersects the first direction, phosphor layers disposed in the discharge cells, and discharge gas is present within the discharge cells.

Abstract: The present invention relates to plasma display panel and manufacturing method thereof to simplify the manufacturing steps and reduce cost of production. In the present invention, a black layer formed between a transparent electrode and a bus electrode is formed together with a black matrix at the same time. In this case, the black layer is formed together with the black matrix in one. Cheap nonconductive oxide is used as a black powder of a black layer. Specifically, in case the black layer and the black matrix are formed in one, the bus electrode is shifted to a non-discharge area to improve the brightness of the plasma display panel.

Abstract: The present invention relates to an end closure member (1) with at least one feed-through (5), whereby the end closure member (1) has at least one through-going feed-through opening (2) and whereby the through-going feed-through opening (2) cross-section varies along the end closure member (1) in a longitudinal direction.

Abstract: A method for fabricating dielectric encapsulated electrodes. The process includes anodizing a metal to form a dielectric layer with columnar micropores; dissolving a portion of the dielectric layer and then anodizing the resultant structure a second time. The nanoporous structure that results can provide properties superior to those of conventional dielectric encapsulated metals. The pores of the dielectric may be backfilled with one or more materials to further tailor the properties of the dielectric.

Abstract: An ionizer emitter electrode is ideally formed of or at least partially coated with a carbide material, wherein the carbide material is selected from the group consisting of germanium carbide, boron carbide, silicon carbide and silicon-germanium carbide. Alternatively, a corona-producing ionizer emitter electrode is substantially formed of silicon carbide. Alternatively, a corona-producing ionizer emitter electrode is formed of an electrically conductive metal base that is at least partially coated with silicon carbide. Alternatively, a corona-producing ionizer emitter electrode ionizes gas when high voltage is applied thereto, and the emitter electrode is formed substantially of silicon carbide and has a resistivity of less than or equal to about one hundred ohms-centimeter (100 ?-cm).

Abstract: Process for assembling an electric reflector lamp comprising: molding a hollow reflector body having an optical axis and having a neck-shaped portion with a transverse wall provided with at least one opening; providing a light source and arranging the light source in the reflector body; electrically connecting the light source to a lamp cap provided with contacts and with a current conductor comprising a pliable material, which conductor is passed through the opening in the transverse wall;wherein, the position of the light source is secured in at least one longitudinal direction by bending of the conductor around at least a portion of the outer transverse wall.

Abstract: There is provided a multi-ringed bulb including a plurality of ring bulbs in which a plurality of straight tube portions having an outside diameter of from 12 to 20 mm are connected to each other through bent portions on a same plane. Electrodes are provided hermetically at respective ends of outermost and innermost bulbs of the plurality of ring bulbs. A connection portion connects other adjacent ends of the outermost and innermost bulbs to each other so that the outermost and innermost bulbs communicate with each other, to form a single discharge path. A phosphor layer is formed on inner surfaces of at least the straight tube portions 5a of the inner and outer bulbs. The multi-ringed structure bulb is filled with discharge medium. The above-mentioned structure permits to provide a fluorescent lamp and a lighting apparatus, which have a small strain in the inner and outer bulbs, a high strength and an excellent luminous efficiency.

Abstract: A radiation source with an ionizable mercury-free composition. The ionizable composition comprising at least zinc or at least one zinc compound or both.

Abstract: An Ultra High Luminance (UHL) high intensity discharge (HID) lamp is described. The lamp envelope is made of single crystal alumina (SCA) material. The fill consists mainly of mercury at densities in the range of 0.3 to 0.7 mg/mm3. The lamp is designed for applications in the projection field where small light modulation imaging devices are used. The lamp design includes a variety of burner (lamp vessel ) geometries and sealing arrangements. This lamp technology represents a major departure from the Ultra High Pressure (UHP) fused silica envelope, mercury filled, HID lamps that are currently used and overcomes the adverse effect of convection. The preferred, and described, alternative burner (vessel ) geometries are envelopes with non-uniform wall thickness, which are thicker at the tops and thinner at the bottoms; a bulbous shape which is more curved at the top than at the bottom; and placing the arc off the center axis, so that the arc is closer to the bottom than it is to the top.

Abstract: An arc discharge vehicle lamp (10) for nebulous weather comprising a body (12) defining a chamber (14) having a volume of between 0.025 to 0.035 cc and including spaced apart electrodes (16, 18) having an arc gap (20) of between 2 and 6 mm; and an arc generating and sustaining medium (21) in the chamber for developing light having a color temperature between 1800K to 2800K during operation of the lamp. A preferred arc gap is 4.2 mm. The electrodes (16 and 18) are preferably fashioned with three parts; a niobium sealing region, an intermediate region of molybdenum and a tungsten region, which protrudes into the discharge chamber.

Abstract: The invention relates to a system for controlling a light source (208, 210, 212) within an area (200), the system comprising: location means conceived to detect a position of at least one person within an area (200); activity means conceived to detect a kind of activity performed by the at least one person within the area; and lighting control means conceived to control the light source (208, 210, 212) within the area (200) in response to the detected at least one person and the kind of activity performed by the at least one person within the area (200).

Abstract: An indirectly heated cathode C1 comprises a heater 1, a double coil 2, a mesh member 3, and a metal oxide 10. An electrical insulating layer 4 is formed on the surface of heater 1. Heater 1 is inserted into and positioned at the inner side of double coil 2. Mesh member 3 is disposed along the length direction of double coil 2 at the outer side of double coil 2. Double coil 2 is grounded by being connected to the ground terminal of heater 1 via a lead rod 7. Metal oxide 10 is held by double coil 2 and disposed to be in contact with mesh member 3. Metal oxide 10 and mesh member 3 are exposed to the outer side of indirectly heated electrode C1 so that the surface of metal oxide 10 and the surface of mesh member 3 make up a discharge surface and mesh member 3 is in contact with the surface part of metal oxide 10.

Abstract: A SWP source includes an electromagnetic (EM) wave launcher configured to couple EM energy in a desired EM wave mode to a plasma by generating a surface wave on a plasma surface of the EM wave launcher adjacent the plasma. A power coupling system is coupled to the EM wave launcher and configured to provide the EM energy to the EM wave launcher for forming the plasma. A cover plate coupled to the plasma surface of the EM wave launcher protects the EM wave launcher from the plasma.

Abstract: A novel plasma reactor is provided that includes a discharge chamber with dimensional characteristics and configuration of dielectric and electrodes that optimize efficiency based on the characteristics of the corona discharge streamers generated. Upon application of a pulsed high voltage potential, the discharge chamber enables formation of plasma where surface streamers play a greater role in the overall energy density of the discharge chamber than gas streamers. The formation of gas streamers is constrained. Because surface streamers have a higher energy density, the present invention is able to achieve improved energy efficiency while preserving effectiveness for gas treatment.

Abstract: The present invention discloses a controller for suppressing the temperature of a screen in order to maintain the ambient temperature of the screen to the level of a predetermined standard temperature as to avoid the screen from being operated at abnormal temperature and lowering its service life. The present invention utilizes a temperature detector unit connected to a control unit for detecting the ambient temperature and outputting a temperature signal to the control unit. The temperature signal is compared with the predetermined standard temperature to determine the magnitude of a cold cathode fluorescent lamp for suppressing the operation of the screen to the best ambient temperature and maintaining the normal service temperature.

Abstract: A controller 5 for a high intensity discharge lamp 4 includes a primary ballast for providing a primary current to the lamp 4, and a current injector which in the case shown comprises a control ballast 8 and a switch 9 (e.g. a triac) controlled by a control unit 12. The current injector injects a secondary current into the lamp 4 that is less than the primary current and can be varied by the control unit 12, e.g. by varying the amount of time within an a.c. cycle that the control ballast 8 is switched into the circuit. The controller 5 allows the lamp 4 to be controlled, for example, to operate at a constant power (variable light output) or at a constant light output (variable power).