Abstract: Embodiments disclosed herein describe systems and methods for heat sinks within light fixtures. In embodiments, the heat sink may be a passive system that creates a cross-flow thermal management system to dissipate large amounts of heat in a slim light fixture. Embodiments may utilize a series of wings assembled in a linear design that are positioned perpendicular to the length of the light fixture to preserve the cross-flow heat sink.

Abstract: A light emitting diode (LED) lamp includes a hollow connector, an LED module mounted on the connector, and a fin unit received in the connector. The connector has an inlet and an outlet couple to the inlet. Heat generated from the LED module is transferred to the connector to dissipate. The fan unit includes a first fan and a second fan rotating along contrary directions.

Abstract: An apparatus for generating electromagnetic radiation includes an envelope, a vortex generator configured to generate a vortexing flow of liquid along an inside surface of the envelope, first and second electrodes within the envelope configured to generate a plasma arc therebetween, and an insulative housing associated surrounding at least a portion of an electrical connection to one of the electrodes. The apparatus further includes a shielding system configured to block electromagnetic radiation emitted by the arc to prevent the electromagnetic radiation from striking all inner surfaces of the insulative housing. The apparatus further includes a cooling system configured to cool the shielding system.

Abstract: Provided is an ion generating device for an air-conditioner duct, which can be easily attached to the inside of an existing air conditioner duct and can ensure a desired ion generation quantity. The ion generating elements of the sub-units (3, 4, 5) of the ion generating device are connected to the drive circuit of the ion generating device main unit (2), and are driven by the drive circuit.

Abstract: A light source device includes: an arc tube having a bulb portion and a sealing portion; a reflector which fixes the arc tube; and a holding portion which holds the reflector, wherein the holding portion includes an inlet port, a partition provided between the inlet port and the arc tube, a pair of passages to which diverges in the partition and can circulate the cooling air to the arc tube, a first opening provided in the partition, and a shutter which is provided on that side of the partition where the inlet port is located, rotates about a rotation axis, and blocks a lower passage of the pair of passages, and on that side of the shutter where the rotation axis is located, a second opening is provided so as to overlap the first opening as seen from the inlet port.

Abstract: An air disinfection device aimed at improving the efficiency and quality of air disinfection or sterilization may be achieved through an air disinfection device comprising a body housing a power supply and control unit, which, in turn, comprises an energy storage capacitor, a high-voltage constant current source, an ignition pulse generator, a ferrite-core pulse transformer, and a program control unit. The air disinfection device may also comprise an ultra-violet radiation source in the form of a pulsed gas-discharge lamp mounted on the body and enclosed in a tubular quartz casing. Given that the energy storage capacitor and the pulsed gas-discharge lamp may form a discharge circuit connected to the ignition pulse generator through the ferrite-core pulse transformer, the pulsed gas-discharge lamp may be placed in a bactericidal radiation translucent casing, resulting in convection air-cooling due to a natural draft inside the casing that disinfects and sterilizes surrounding air.

Abstract: An apparatus for producing electromagnetic radiation includes a flow generator configured to generate a flow of liquid along an inside surface of an envelope, first and second electrodes configured to generate an electrical arc within the envelope to produce the electromagnetic radiation, and an exhaust chamber extending outwardly beyond one of the electrodes, configured to accommodate a portion of the flow of liquid. In another aspect, the flow generator is electrically insulated. In another aspect, the electrodes are configured to generate an electrical discharge pulse to produce an irradiance flash, and the apparatus includes a removal device configured to remove particulate contamination from the liquid, the particulate contamination being released during the flash and being different than that released by the electrodes during continuous operation.

Abstract: A heat dissipating device for lightings includes a light source module, a heat sink, and a converter. The heat sink has a substrate and a plurality of heat dissipating fins extending outward from the substrate. A plurality of channels is formed between the heat dissipating fins. Insides of the channels respectively have a port open to the center of the heat sink. Thereby, the channels of the heat sink can effectively direct the airflow into the center of the heat sink, enhancing the heat dissipating effect of the heat sink.

Abstract: A heat sink is provided. The heat sink may include an open cavity formed by a cavity wall, a cavity bottom wall thereof including a light source region adapted to have a light source mounted thereon and a lateral cavity wall thereof including a reflection region adapted to reflect light emitted from the light source; a heat spreading and dissipation structure covering at least part of an exterior of the heat sink including a bottom region and a lateral region, the heat spreading and dissipation structure including a plurality of vertically aligned fins; an air guidance structure adapted to separate the heat sink from an air flow generator; and at least one mounting column for attaching the heat sink to a lighting device.

Abstract: The borosilicate glass with improved solarization-resistance has a transmittance curve within an area bounded by respective curves defined by the corresponding equations ?=1.7·(??277) and ?=1.6·(??284) in a wavelength range of 283 nm to 325 nm. This glass has a composition, in wt. % based on oxide content, of: 55-82, SiO2; 10-20, B2O3; 1-10, Al2O3; 0-5, Li2O; 0-10, Na2O; 0-10, K2O; 0-10, ?M2O; 0-5, MgO; 0-10, CaO; 0-5, SrO; 0-15, BaO; 0-15, ?MO; 0-3, ZrO2; 0-5, ZnO; 0-2, CeO2; 0-3, WO3; 0-2, SnO2: 0-0.1, Fe2O3; 0.05-2, MoO3; 0-5, Bi2O3; 0-1, TiO2 and 0-5, oxides of selected rare earth and Group IVB to VIIIB elements. The transmittance is adjusted by varying the MoO3 content and if necessary the TiO2 and Bi2O3 content. The glass is especially suitable for use in a weathering apparatus.

Abstract: An LED bulb includes a base, a shell connected to the base, an LED mount disposed within the shell, one or more LEDs, a thermally conductive liquid, and a liquid-volume compensator mechanism. The one or more LEDs are mounted on the LED mount. The thermally conductive liquid is held within the shell. The liquid-volume compensator mechanism moves from a first position to a second position to compensate for expansion of the thermally conductive liquid.

Abstract: An apparatus for producing electromagnetic radiation includes a flow generator configured to generate a flow of liquid along an inside surface of an envelope, first and second electrodes configured to generate an electrical arc within the envelope to produce the electromagnetic radiation, and an exhaust chamber extending outwardly beyond one of the electrodes, configured to accommodate a portion of the flow of liquid. In another aspect, the flow generator is electrically insulated. In another aspect, the electrodes are configured to generate an electrical discharge pulse to produce an irradiance flash, and the apparatus includes a removal device configured to remove particulate contamination from the liquid, the particulate contamination being released during the flash and being different than that released by the electrodes during continuous operation.

Abstract: Disclosed is an intense pulse light device, in which plural divided light filters coated with individually different materials are rotatably and uniformly aligned around a reflection mirror in order to selectively filter lights according to wavelengths thereof, so that it is not necessary to exchange a handle body or filters, thereby improving convenience of use for the IPL device, and in which the loose contact of power lines and signal lines, leakage of cooling water, and penetration of impurities can be prevented, thereby improving reliability of IPL device. A semicircular reflection mirror aligned around a flash lamp installed in a body and a light filter section is aligned around the reflection mirror while forming a predetermined space therebetween. The light filter section is uniformly divided into two or four light filters so as to increase selectivity for the light radiated from flash lamp.

Abstract: To devise a small light source device in which breaking of the bulb of the light source lamp can be suppressed and in which breaking of the bulb will not damage the window component, a light source lamp supported in a housing by only one of two hermetically sealed tubes at opposite ends of an arc tube, a cooling rib is mounted on a lead pin in the one of the sealed tubes that faces toward the window component and has a larger dimension in the radial direction than the maximum diameter of the opening edge of the light exit opening in the housing. The cooling rib serves to block bulb fragments and should it contact the peripheral edge area of the light exit opening with its edge that faces the window component, due to its size, neither the lead pin nor the cooling rib will contact the window component.

Abstract: A plasma display apparatus including a plasma display panel, a chassis base coupled with the plasma display panel, a printed circuit board assembly coupled with the chassis base, a case housing the plasma display panel, the chassis base, and the printed circuit board assembly, and a liquid shielding plate for receiving liquid entering the apparatus.

Abstract: A discharge lamp, and particularly a high-pressure gas-discharge lamp (an HID (high-intensity discharge) lamp or UHP (ultra-high performance) lamp), having a reflector and a cooling means is described. The cooling means comprises at least one nozzle (3) by which a flow of gas can be directed onto the discharge lamp, the at least one nozzle (3) being so arranged that it does not extend, at least to any substantial degree, into a beam path produced by the lamp (2) and the reflector (1). In this way, the cooling means does not produce any obstacles on the beam path for the light. With preferred embodiments, it is possible to produce a turbulent flow that surrounds particularly the discharge vessel (21) of the lamp and that considerably increases the effectiveness of the cooling means. Further embodiments also allow the discharge lamp to be operated in a plurality of different positions without individual regions of the lamp being too little or too severely cooled.

Abstract: A method of producing a light emitting apparatus including a light emitting element, a light emitting element housing having a recess for housing the light emitting element, and a translucent substrate placed on the light emitting element housing is disclosed. The disclosed method includes a fluorescent-substance-containing resin forming step of forming a fluorescent-substance-containing resin on a first side of the translucent substrate which first side is opposite to a second side of the translucent substrate which second side faces the recess. In the fluorescent-substance-containing resin forming step, luminance and chromaticity of light that is emitted from the light emitting element and then transmitted by the fluorescent-substance-containing resin are measured and a thickness of the fluorescent-substance-containing resin is adjusted based on the measured luminance and chromaticity so that light emitted from the light emitting apparatus attains the specified luminance and chromaticity.

Abstract: A cooling air gathering plate for enhancing a cooling effect of a projector lamp is disclosed. The gathering plate has a notch to collect the cooling air at a lampwick, a welding point of the lamp, and/or any high temperature position of the lamp. A center line of the gathering plate matches together with an axis of the lamp. The gathering plate can be fixed on the lamp, a lamp reflector, or a holder for fixing the gathering plate to guide the cooling air passing through the high temperature position of the lamp.

Abstract: The present invention relates to a fluorescent tube structure, which fluoresces when connecting electric power, including a base plate and an upper cover forming a enclosed discharge chamber, wherein pellicles applied inside to enable an illuminant to project to the curved surface of the upper cover and then be reflected to the base plate, which enhances illumination and also reduces illumination loss to the lateral, thereby improving illuminant efficiency. The present invention can be used as a backlight on illuminating and electronic display devices.

Abstract: An apparatus for blocking ambient air of an electrodeless lighting system comprises: a waveguide including a shaft hole so that a bulb shaft can be penetrated therethrough; a bulb motor mounted on a rear side of the waveguide and connected to a bulb, which is located on a front side of the waveguide, using the bulb shaft for rotating the bulb; and a sealing unit installed between the bulb motor and the waveguide for blocking inflow of ambient air to a direction of the bulb, that is, a sealing structure can be ensured so that the ambient air is not flowed into the light emitting area where the mesh screen is located, and thereby impurities are not flowed into the light emitting area to ensure the clear light emitting conditions, the oxidization of mesh screen can be reduced, and the stability of the lighting apparatus is improved and maintenance cost can be reduced.

Abstract: A lighting apparatus comprises an LED-mounted substrate and an exhauster. The substrate has a flat area as well as one or more raised areas of trapezoidal cross section which each form a passage thereunder. LEDs are mounted on the raised areas. When the LED-mounted substrate is installed on a wall, the passages are enclosed by the wall. The exhauster removes the heat from the LEDs by drawing out the air going through inside the passages.

Abstract: A cooling apparatus of a plasma lighting system. The system includes a power supply for supplying a power source; a magnetron for generating electromagnetic wave by the power source from the power supply; a bulb for generating light in accordance with that inert gas is ionized by the electromagnetic wave; and a case unit of a hermetic shape including the magnetron and the power supply therein for cooling heat generated from the magnetron. The plasma lighting system prevents heat of high temperature generated from the magnetron from being transmitted and foreign substance from being introduced.

Abstract: There is provided an improved ultraviolet lamp assembly using an ultraviolet lamp with a vented closed end quartz tube having improved and increased ultraviolet lamp intensity output for increased germicidal and bactericidal effect for use in purification, sterilizing, sanitizing and cleaning systems. The ultraviolet lamp assembly comprises an ultraviolet lamp, a tube operative to house the ultraviolet lamp and comprising a closed end, an open end able to allow insertion of said ultraviolet lamp and having a plurality of vents that allow air into and out of an air space between the ultraviolet lamp and the surrounding tube, a tube divider operatively disposed between said UV lamp and said tube to thereby divide said air space into at least two air space compartments enabling air to circulate through said tube, and an air displacer operatively connected to at least one of said vents and able to produce air flow in said tube.

Abstract: An evacuated cavity is hermetically sealed between a baseplate and faceplate of a flat panel display. Melting a glass powder, or frit, on the perimeter of the viewing area forms the hermetic seal. After melting the frit, a first fluid is circulated through the cavity to speed cooling. To further expedite the cooling of the flat panel display, a second fluid flows externally along the contour of the flat panel display to insure that the cooling is uniform and thereby avoid thermal shock.

Abstract: A high intensity discharge lamp assembly (10) has improved thermal venting. The discharge light source (12) is housed within a reflector body (20). Recesses (40) are circumferentially spaced around an open end (28) of the reflector body. A containment structure (50, 50′, 50″) provides a structure that serves the containment function without interfering with the thermal venting.

Abstract: A method for thermal control of a lamp assembly which includes an arc lamp, fan and an associated reflector enclosed within a sealed module. The method includes providing a predetermined air flow path within said module whereby a continuous flow of ambient air is passed over said lamp during lamp operation which reduces the operating temperature of the lamp and increases lamp life, and further including an opening or vent adjacent to the fan which functions to reduce the fan temperature in operation thereby increasing the operating life of the fan.

Abstract: A method and apparatus for producing high intensity electromagnetic radiation are disclosed. The apparatus includes a high intensity arc lamp having an inner envelope cooled by a first flow of liquid along an inside surface of the inner envelope. The arc lamp includes first and second electrodes for generating a high power plasma arc within the inner envelope, the arc emitting the radiation. The apparatus further includes a cooling device for producing a second flow of liquid in contact with an outside surface of the inner envelope. In order to approximate a desired electromagnetic radiation spectrum, the apparatus may further include an energy redistributor for redistributing energy within a first radiation spectrum generated by the arc to produce a second radiation spectrum.

Abstract: An apparatus for blocking ambient air of an electrodeless lighting system comprises: a waveguide including a shaft hole so that a bulb shaft can be penetrated therethrough; a bulb motor mounted on a rear side of the waveguide and connected to a bulb, which is located on a front side of the waveguide, using the bulb shaft for rotating the bulb; and a sealing unit installed between the bulb motor and the waveguide for blocking inflow of ambient air to a direction of the bulb, that is, a sealing structure can be ensured so that the ambient air is not flowed into the light emitting area where the mesh screen is located, and thereby impurities are not flowed into the light emitting area to ensure the clear light emitting conditions, the oxidization of mesh screen can be reduced, and the stability of the lighting apparatus is improved and maintenance cost can be reduced.

Abstract: A discharge lamp for dielectrically impeded discharges, having a discharge vessel filled with a discharge medium and having discharge electrodes which are at least partly separated from the discharge medium by a dielectric layer, wherein the discharge vessel is elongated at least in a longitudinal direction, characterized by a thermal device for controlling the heat transport into and out of the lamp nonhomogeneously in the longitudinal direction, which is designed such that in operation, the temperature in the lamp is made homogeneous in the longitudinal direction.

Abstract: A lighting apparatus comprises an LED-mounted substrate and an exhauster. The substrate has a flat area as well as one or more raised areas of trapezoidal cross section which each form a passage thereunder. LEDs are mounted on the raised areas. When the LED-mounted substrate is installed on a wall, the passages are enclosed by the wall. The exhauster removes the heat from the LEDs by drawing out the air going through inside the passages.

Abstract: A flat display panel is provided which can improve the reliability of the contact portion where a flat plate and a back plate are bonded together and can suppress the display dead space. Recessed portions 52 are formed in a glass substrate 60 so that a sealing wall 63 is formed along the outer fringe of a back plate 61. The front plate 54 includes a protrusion 59 protruding outward from the sealing wall 63 on the outer fringe portion thereof. The contact portion between the front plate 54 and the back plate 61 is sealed by depositing fritted glass 62 onto the corner portion defined by the protrusion 59 and the side surface of the back plate 61. In order to improve the sealing effect, the fritted glass 62 is inserted into the gap at the bonding portion. The groove 64 is formed on the top surface of the sealing wall 63 to prevent the fritted glass 62 from intruding in to the discharge space.

Abstract: A discharge lamp is provided which employs a higher-pressure and higher-wattage lamp body 1 and is capable of effectively preventing the scattering of broken pieces of the lamp body 1 at explosion of the lamp body 1. The discharge lamp comprises a lamp body 1, a reflector 2 having the lamp body 1, and a front glass fitted on a front portion of the reflector 2, wherein the reflector 2 has vent holes 4 in which mesh sheets 6 or perforated plates 5 are fitted.

Abstract: A method for thermal control of a lamp assembly which includes an arc lamp and an associated reflector enclosed within an outer housing. The method includes providing a predetermined air flow path within said housing whereby a continuous flow of ambient air is passed over the lamp during lamp operation which reduces the operating temperature of the lamp and increases lamp life.

Abstract: An image forming apparatus having an envelope formed by first and second substrates disposed at a predetermined distance therebetween and image forming means disposed in the envelope, wherein a heat insulating member is disposed on a surface of the envelope in an area excepting partial surface areas of the first and second substrates.

Abstract: The invention relates to a device (1) for degerminating water passing through a sanitary appliance, comprising a housing (2) through which water can flow, and a UV lamp (12) located therein. Said UV-lamp (12) is connected to an external current source by a terminal base (10) made up of two detachable parts (10a, 10b). The first part (10a) of the receiving base (10) is fixed on the housing (2, 3, 4) and contains a first coil (23) which can be connected to the external current source. The other part (10b) of the terminal base (10) has a receiving opening (15) into which the base area (13) of the UV-lamp can be tightly inserted. A second coil (26) is also integrated into this second part (10b). When the terminal base (10) is assembled, the second coil (26) is so close to the first coil (23) in the first part (10a) that the two coils (23, 26) perform the function of a transformer transmitting power without a galvanic connection forming between the two parts (10a, 10b) of the terminal base.

Abstract: Method for fabricating a screen in a color CRT, in which, in formation of a color filter film and a fluorescent film on the same time, a pigment layer is formed, a photo sensitive resin solution is coated thereon, a fluorescent material layer is sprayed thereon, and the pigment layer and the fluorescent film are exposed and developed, to prevent the pigment layer and the fluorescent film from peeling off and to form thin and close packed fluorescent films on the photo sensitive resin solution, for enhancing a contrast and a color purity as well as a luminance and cutting characteristics, the color display having three color (blue, green, and red) color filter films and fluorescent films in a color pixel region of an inside surface of a panel having a black matrix formed thereon, wherein each of three color pigment filter layers and fluorescent material layers are formed in succession by a method including the steps of (1) coating pigment dispersed slurry to form a pigment filter layer, (2) coating photosensit

Abstract: Liquid-cooled discharge lamps of, for example, UV type are employed for sterilising objects, for example, packaging containers for foods. In lamps displaying a U-shaped luminant body and with a surrounding liquid container or envelope, cooling is improved according to the invention in that the base is provided with inflow and outflow channels for liquid, an inflow channel being directed towards the curved section of the luminant body. Whereby, cooling of the warmest section of the luminant body will be optimised, which results in a considerably lengthened service life for the lamp.

Abstract: In an organic EL display device, an organic EL multilayer structure is disposed in a gastight space defined between a substrate and a shield member and filled with an inert gas. The organic EL multilayer structure includes organic materials having a Tg of at most 140.degree. C. The shield member is a continuous member free of a filling port. The shield member is joined to the substrate with a UV-curing epoxy resin adhesive of the cationic curing type. The inert gas in the space has a water content of at most 100 ppm. The steps of forming layers on substrates to form organic EL multilayer structures and the steps of adhesively joining shield members to the substrates are carried out in inert gas atmospheres.

Abstract: A spectral filter and mounting assembly comprising a flat quartz disk with coatings to control the light spectrum, a heat transfer adapter, a split-ring retainer for use in a drop-in arc lamp assembly that includes an arc lamp with fitted cathode and anode heat sinks each including a thin-wall copper strip that is brazed in pleated folds between inner and outer cylindrical rings to create cooling fins. The drop-in lamp assembly also includes an insulative sleeve in which the arc lamp and heat sinks are disposed and a pair of connection bushings piercing the wall of the sleeve and providing an electrical connection to the arc lamp outside the sleeve. The arc lamp includes a copper heat conduction flange that surrounds a front window reduced in diameter from the diameter of the arc lamp. The flange conducts heat generated in the window and the spectral filter during operation directly to the cathode heat sink. Both heat sinks are forced-air cooled by the fan, thus cooling the window and the spectral filter.

Abstract: A light source for use in a projection type liquid crystal display device. The light source includes an electrodeless light emitting member having a light emitting material sealed in a transparent tube to emit light upon the application of microwave electromagnetic energy. A concave mirror is arranged on the outside of the light emitting member, and the transparent tube is supported by a rotatable rod-like support member which extends through the concave mirror. Means in the form of a vane, a screw or a projection is arranged on the rod-like support member or on the light emitting member for stirring air, while the rod-like support member rotates, to cool the light emitting member.

Abstract: A drop-in arc lamp assembly comprising an arc lamp with fitted cathode and anode heat sinks each including a thin-wall copper strip that is brazed in pleated folds between inner and outer cylindrical rings to create cooling fins. The drop-in lamp assembly also includes an insulative sleeve in which the arc lamp and heat sinks are disposed and a pair of connection bushings piercing the wall of the sleeve and providing an electrical connection to the arc lamp outside the sleeve. A flush-mount receptacle for the drop-in lamp assembly includes a housing with a fan axially positioned behind the arc lamp and heat sinks when they are in place in the sleeve and dropped-into the housing. A glass epoxy board attached to the housing supports and insulates electrical terminals that contact the bushings to power the arc lamp. The arc lamp includes a copper heat conduction flange that surrounds a front window reduced in diameter from the diameter of the arc lamp.

Abstract: A magnetron comprises a cathode and an anode, the anode comprising a substantially cylindrical anode block having a plurality of internal resonant cavities. A pair of enclosed channels extend about the block, a coolant inlet being present in one of the channels and a coolant outlet being present in the other of the channels, the channels being connected to each other along their length by one or more connecting passageways dimensioned relative to the channels to provide a restriction so as the enhance coolant flow velocity, in use, through the connecting passageway.

Abstract: An immersible lamp for use in a photochemical reactor has an outer bulb (10) surrounding an inner discharge tube (1) which can be cooled by a flow of inert gas such as nitrogen from a supply chamber (23) though hollow guide rods (6, 7) into a remote end (27) of the outer bulb, and back out through an outlet hole (18) and an exhaust chamber (24). In order to facilitate swapping out of the discharge tube (1) in the event of burnout or changes in output power or output spectrum requirements, without the need for welding or glassblowing expertise, the discharge tube (1) is mounted in a pair of sockets (4,5), one of which (4) is axially slidable. The socket is spring-loaded (8), and thus readily adapts to discharge tubes of differing lengths. The socket slides along guide rods (6, 7, 16) which also serve as electrical supply conductors to the sockets (4, 5). Spacer elements (11) help maintain alignment of the guide rods, sockets, and discharge tube with respect to the axis (12) of the outer bulb (10).

Abstract: Disclosed is a cooling apparatus for a magnetron, comprising a channel-shaped heat radiation plate for dissipating the heat generated from the anode of a magnetron, a yoke for supporting the heat radiation plate, an opening formed in both side walls of the heat radiation plate, and a secondary air passage formed in both side walls of the yoke for passing cooling-air to the opening, whereby the main stream of the cooling-air coming through the forward end of the heat radiation plate is pushed towards the anode in the rear region of the anode by the cooling-air driven through the secondary passage and opening into the rear region.

Abstract: A linear accelerator drift tube is formed by a casting technique. Coolant circualting grooves are integrally formed in the central body of the drift tube as well as face plates. This minimizes the temperature of the drift tube in an operating environment thereby maximizing the R.F. efficiency of the unit. The face plates are attached to the central body of the drift tube by means of a solder/electroform joining. The stem of the drift tube includes concentric passages integrally formed in the cast central body which enables efficient circulation of coolant through the drift tube.

Abstract: A water-cooled low pressure gas or mercury vapor lamp which utilizes a cooling system to keep the lamp cool in the area where useful radiation is emitted. This is accomplished by means of a cooling chamber directly adjacent to the gas or mercury vapor discharge chamber. A cooling fluid is injected into the cooling chamber through a cooling inlet and exits the cooling chamber through a cooling outlet after traveling the cooling chamber's entire length. The cooling fluid removes the heat generated by the radiation and allows the useful emission to be optimized.

Abstract: A power electron tube cooled by the circulation of a fluid is disclosed. This tube comprises a hollow, cylindrical anode mounted coaxially around a hollow, cylindrical grid, itself surrounding a cathode. The interior of the anode is hermetically closed. A cooler with forced fluid circulation is formed by two coaxial, cylindrical jackets mounted around the anode. It defines a closed chamber connected to an inlet conduit and a removal conduit for the fluid. An electrical connection part for the anode is brazed, by one side, to the base of the anode and, by the other side, to a part that is solidly joined to the outer jacket of the cooler. This anode connection part forms an impervious wall closing the chamber of the cooler, and is in contact with the cooling fluid.

Abstract: A synchrotron radiation source and a method of making the same. As assembly of a beam absorber for absorbing synchrotron radiation beams and a piping for cooling the beam absorber is mounted in a charged particle beam duct of a bending section of the synchrotron radiation source for bending a charged particle beam. Fixed to at least one straight duct that is connectable to either of the opposite ends of the charged particle beam duch is a piping guide duct through which the beam absorber cooling piping is drawn to the outside, so that the assembly of the beam absorber and the beam absorber cooling piping can readily be mounted in the synchrotron radiation source.

Abstract: A high intensity discharge metal vapor lamp comprising an arc tube having an inner chamber vented to the arc tube and disposed therein is disclosed. The combination of the arc tube and inner chamber being of a double wall construction confines the arc condition occurring between thermionic electrodes to be within the inner chamber. The inner chamber is operated at an increased wall temperature, relative to a conventional arc tube, while at the same time reducing the typically experienced sodium losses that normally occur for increased wall temperature operation. Ceramic evaporation at elevated temperatures from the inner chamber can be rendered innocuous by deposition on a similar material utilized in the arc tube. The characteristics of the arc tube allows for improved methods of its operation such as a pulsed operation at a relatively high rate of 1 to 20 KHz so as to achieve a relatively high color temperature. If desired, the arc tube may be operated in a d.c.

Abstract: A magnetron apparatus comprises a magnetron with an anode cylinder, and a radiator having an integral construction and attached to the outer peripheral surface of the anode cylinder so as to allow cooling air to pass therethrough. The radiator includes a plurality of horizontal plates arranged in stages and each having a cylindrical portion for receiving the anode cylinder, and a pair of vertical walls which connect adjacent ends of the horizontal plates, the vertical walls serving to maintain, between adjacent horizontal plates, a gap which is greater than the axial length of the cylindrical portion. The radiator, which has an integral construction of cooling plates; can be installed on the anode cylinder of the magnetron easily in such a manner to ensure a close contact between the radiator and the anode cylinder.