Abstract: An electronic image assembly cooling system includes an enclosure having an electronic image assembly mounting space located therein. A closed loop gas circulation path and an open loop air flow path are provided to effectuate cooling. A common heat exchanger is located in gaseous communication with both the closed loop gas circulation path and the open loop air flow path. The closed loop gas circulation path encircles the electronic image assembly mounting space within the enclosure, while the open loop ambient air flow path facilitates removal of heat from gas circulating within the closed loop gas circulation path. A second open loop air flow path may pass through the enclosure and through a gap located rearward of the electronic image assembly mounting space to assist with heat removal when an electronic image assembly is mounted in the enclosure.

Abstract: A display device is provided to achieve air circulation through an inner structure or an outer structure of the display device for efficient heat dissipation. The display device includes a housing, a display module mounted in the housing, a closed-loop air circulation system, and an open-loop air circulation system. The closed-loop air circulation system includes a first channel defined between a front surface of the display module and a front surface of the housing so as to extend along the front surface of the display module, and a second channel defined between one side surface of the display module and one side surface of the housing that is opposite the one side surface of the display module. The first channel is configured to receive air from a first end of the second channel and to discharge the air to a second end of the second channel.

Abstract: An outdoor display apparatus having enhanced temperature stability comprises: a display panel having a driver board; a rear bracket having at least one opening for air circulation that is coupled to the display panel having the driver board; and a housing for accommodating a rear bracket coupled to the display panel, wherein: the inlet is formed at a lower portion of a rear surface of the housing, the outlet is formed at an upper portion of a rear surface of the housing, and air flows through a first clearance space existing between the front surface of the display panel and the transparent optical member, a second clearance space existing between the rear surface of the display panel and the rear bracket having the opening for air circulation, and a third clearance space existing between the rear bracket having the opening for air circulation and the housing.

Abstract: A UV radiator unit includes an elongated gas discharge lamp with an essentially cylindrical UV transparent lamp body with sealed ends, which encloses a gas volume. The lamp body defines a longitudinal axis and has an outer diameter. A UV transparent sleeve tube with an inner diameter, which surrounds the lamp body and wherein the inner diameter is larger than the outer diameter of the lamp body. At least one damping ring is interposed between the lamp body and the sleeve tube. The damping ring includes a first side element, a second side element and at least one connecting portion. An axial distance is provided between the first side element and the second side element. The at least one connecting portion physically connects the first side element and the second side element.

Abstract: Magnetron configurations that provide more efficient and/or more uniform cooling characteristics and methods for forming the magnetrons are provided. The magnetron includes one or more flow directing structures disposed between parallel cooling fins. The flow directing structures direct air flow across various surfaces of the cooling fins that otherwise would be obstructed by magnetron components, reducing the incidence and/or magnitude of hot spots on the cooling fins and/or on other magnetron components. The flow directing structures also adjust flow rates to improve cooling efficiency.

Abstract: A liquid-cooling heat-dissipating module is configured for allowing a cooling liquid to be filled therein and includes a casing and a cooling assembly. The casing has a hollow interior and is provided with an inlet and an outlet in communication with its interior. The cooling assembly is provided in the casing and formed with a conical eddy generation region at a position corresponding to the outlet. The cooling liquid generates an eddy in the eddy generation region to flow into the outlet. By this structure, the staying time of the cooling liquid in the heat exchange module is increased, so that the cooling effect and the heat-dissipating efficiency of the cooling liquid are improved greatly.

Abstract: The present invention provides an ultra violet irradiating device for aligning liquid crystal and also an water-cooling coaxial tube. The ultraviolet irradiating device includes a water-cooling coaxial tube configured with an inter tube and an external pipe enveloping the internal pipe. A light tube is disposed within the internal pipe, and an infrared filter layer is disposed between the internal and external pipes; and an ultra violet filter layer is coated over an external surface of the external pipe so as to filter out an ultra violet light beam having wavelength lower than 320 nm. The breakage of the unit filters resulted from inter pushing with each other or leakage resulted from overlapping of the unit filters can be readily resolved.

Abstract: The invention describes a gas-discharge lamp (1) comprising a discharge vessel (11) arranged in an outer quartz glass envelope (12), which gas-discharge lamp (1) comprises a local thermal area contact (2) between a lower surface (21) of a localised deformation (20) of the outer envelope (12) and a corresponding isolated area (22) on the outer surface (23) of the discharge vessel (11). The invention also describes a method of manufacturing a gas-discharge lamp (1), which method comprises the steps of arranging a discharge vessel (11) in an outer quartz glass envelope (12); forming a localised deformation (20) of the outer envelope (12) to create a local thermal area contact (2) between a lower surface (21) of the localised deformation (20) and a corresponding isolated area (22) on the outer surface (23) of the discharge vessel (11).

Abstract: A fluorescent lamp includes an arc tube comprised of light transmissive material. The arc tube can be for a compact fluorescent lamp (CFL). A discharge sustaining fill, which may include mercury and an inert gas, is sealed in the interior of the arc tube. Electrodes are disposed in the sealed interior of the arc tube. An outer envelope is disposed around and spaced apart from the arc tube. The outer envelope can take the form of a conventional incandescent light bulb, candle, globe-shape or reflector shape. The outer envelope includes an opening. The arc tube includes a hollow protrusion that extends adjacent or into the opening. This can provide the arc tube with a lower temperature near the protrusion that can approximate the temperature of the outer envelope (a cold spot). This can regulate the vapor pressure of liquid (e.g., liquid mercury) in the arc tube.

Abstract: A compact fluorescent lamp which includes a compact fluorescent light source and a ballast operatively connected to and controlling operation of the light source. An outer light transmissive envelope surrounds the light source and an elastic protective shield surrounds the ballast.

Abstract: The present invention comprises a globe shield and an inner disposed inside the shield, between which a low-pressured plasmic arc discharging zone is enclosed. Further, a glass division device near the inner in the discharging zone is coated with fluorescent powder on the surface thereof and is formed by glass or sheet glass having at least one opening defined on the glass to ensure the passage of air. The present invention advantages preferable ruminant efficiency as 15 to 20% higher as that of the conventional products, increasing the thermal resistance between the high-temperature circular discharging zone of the plasmic arc and the power coupler to decrease the heat generated by the corresponding radiation conduction for the inner, so that a large power is enabled by the present invention, accomplishing a performance of 200-300 W of the lighting power, and attaining a 75-85 Lm/W of the ruminant efficiency.

Abstract: An electrical lamp having an elongate inner bulb made of silica glass is provided. The electrical lamp may include a central part which is closed at two sides by fusings to which externally tubular extensions adjoin, the fusings containing foils, and the inner bulb having a longitudinal axis and an illuminant being accommodated in the inner bulb, and the inner bulb being surrounded by an outer bulb made of silica glass, wherein at the level of the end of the foils the fusings have beads which protrude radially outwards, an end region respectively of the outer bulb being connected to the bead, so heat is dissipated from the foil.

Abstract: An illumination lamp is provided. The illumination lamp includes a hollow pillar tube being light-transmissive, at least one inner light tube accommodated in the hollow pillar tube, and an electrode set disposed at one distal end of the hollow pillar tube and electrically connected to the inner light tube in the hollow pillar tube.

Abstract: The invention relates to a metal halide lamp for a vehicle headlamp comprising a cylindrically-shaped discharge vessel (23) having a ceramic wall which encloses a discharge space comprising Xe and ionizable filling, and a cylindrically-shaped outer bulb (21) surrounding the discharge vessel (23). According to the invention a portion (25, 26) of the surface of the outer bulb (21) facing away from the discharge vessel (23) is shaped as a negative lens. Preferably, the portion (25, 26) encompasses a segment of the outer bulb (21) with a segment angle ? in the range between 30???60°. Preferably, the portion (25) forming the negative lens is shaped as a flat surface.

Abstract: The invention relates to a lamp having a light source (10) and a sub-assembly comprising a protective sleeve (1) and two frame members, wherein the two frame members (2, 3) are each supporting the sleeve. Each frame member may comprise a clamping spring, which serves as a connection between the frame member and the sleeve. The invention also relates particularly to a lamp with an outer vessel (45), which is a parabolic aluminized reflector, and a light source, which is a ceramic discharge metal halide burner.

Abstract: A novel bulb and bulb assembly. In an embodiment, the present invention comprises a shell enclosing a hollow interior, and a tube intersecting with the shell such that the ends of the tube reside outside the shell and a portion of the tube resides within the shell. Each intersection of the tube and the shell in this embodiment is accomplished so that any contents of the hollow interior of the shell are sealed within the shell and any contents of the hollow interior of the shell are segregated from any contents of the portion of the tube residing within the shell. This embodiment may further comprise at least one electrode having at least one end terminating inside the shell. This embodiment may further comprise a source of electromagnetic waves positioned such that electromagnetic waves emanating from the source of electromagnetic waves pass through the shell.

Abstract: The invention relates to a mercury-free low pressure discharge lamp with a discharge vessel having an ionizable filling. The surface temperature of the discharge vessel, and thus the temperature of the ionizable filling, can be adjusted at least in some sections such that an emitting substance can produce the radiation required for the excitation of the luminescent substance. The temperature of the fluid is preferably adjusted in a temperature control circuit, using a temperature sensor, a pump and a heating device.

Abstract: An incandescent lamp may be formed from a shell having an exterior side and an interior side defining a cavity, and with an internal wall defining a through passage extending from the exterior side to the interior side. A light source is located in the cavity facing the interior side, and coupled to electric lamp leads extending through the passage. A heat radiator assembly is adjacent the exterior side, and includes heat-dissipating surfaces exposed to air. An integral power supply is enclosed in the heat radiator assembly and electrically connected to the light source through the electric lamp leads. A threaded base having exterior electrical contact points is electrically connected through base leads to the integral power supply. The shell, radiator assembly and base are mechanically coupled as a unit. A lens may cover the shell to enclose the cavity and light source.

Abstract: A halogen lamp assembly 20 for a substrate processing chamber 100 has a halogen lamp 22 and a ceramic heat sink monolith 24. The halogen lamp 22 includes a filament 28 and a pair of electrical connectors 30 encapsulated in an envelope 26 having a pinch seal end 34. The ceramic heat sink monolith 24 includes a block 38 and an array of spaced apart posts 40 projecting outwardly from the block 38. The block 38 includes a cavity 42 that has a recessed inner surface 44 shaped to mate with the pinch seal end 34 of the lamp 22 and an opening that allows the electrical connectors 30 of the halogen lamp 22 to pass through.

Abstract: A lamp (10) includes an envelope (12) having a body (14) with a light source capsule (16) contained therein and ending in a hollow base (18) that terminates in a conical end (20). A circuit board (22) is positioned within the hollow base (18) and includes a triangular portion (24) that is closely fitted within the conical end (20). A temperature sensitive, voltage reducing component (28a) is positioned near the apex (30) of the triangular portion (24).

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: 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.

Abstract: An infrared headlight useful in a night vision system may be made with an infrared emitter positioned in a reflector. The radiation source is associated with a filter body which has a first filter layer part and a second uncoated part. The two parts are designed so the radiation transmitted through the uncoated part strikes a different area of the reflector than the infrared radiation transmitted through the filter layer. The two regions of the reflector may have differing reflective characteristics.

Abstract: Modular ballasts of an aquarium comprise a lampshade and a plurality of ballast modules, wherein a reflection plate and a plurality of lamps are mounted inside the lampshade. At least a socket locates on the backside or the top of the lampshade for holding the ballast modules that comprise housings and ballasts. The ballasts are fixed to the housings and the ballast modules are capable of coupling with the lampshade. Because the ballasts are coupled with the housings, the manufacturers are capable of assembling the ballasts efficiently and the consumers are capable of changing the ballasts simply by pulling out the ballast modules by themselves. Consequently, the consumers can install the ballasts by themselves so as to save the required time for the change adequately.

Abstract: A multi-tube fluorescent discharge lamp, which is constructed of multiple glass tubes of different caliber in coaxial structure, the both sides of the inner most tube are connected to a cathode respectively, by isolating, perforating and blocking the discharge path, forming a successive discharge path, and coating phosphor on surface of the discharge tubes. The Invention can then have more fluorescent area than a conventional fluorescent lamp of the similar size and higher lumen as well as power transfer factor. Compared with the power consumption of a conventional fluorescent discharge lamp, the Invention therefore has higher luminous flux.

Abstract: In a projection cathode ray tube device in which a projection cathode ray tube and a projection lens assembly are coupled and held by a coupler, superior focus characteristics and high resolution are realized by eliminating the deviation between the center of the phosphor screen of the cathode ray tube and the center of the lens assembly. In the cathode ray tube, each of the outside and inside surfaces of a faceplate is formed as a spherical convex surface which is curved toward an electron gun.

Abstract: A protected lamp assembly includes a tubular lamp enclosed within a tubular protective housing. The lamp is supported by grommets or bushings of a resilient material that are retained within the housing. An end cap assembly may include the bushing for the lamp and also support the protective housing. Conductors through the end caps communicate with the lamp electrodes. In alternate embodiments the conductors may emerge from one of the end caps or the end caps may include a conductive coating with a connection to the lamp electrodes.

Abstract: A stem and lamp capsule are connected together as an assembly using a retainer such that the stem is clamped to one end of the retainer and the capsule is clamped to the other end of the retainer. An oxidizable fuse is connected between leads of the capsule and electrical conductors of the stem. The retainer maintains the rigidity of the assembly and keeps a constant distance between the stem and the lamp capsule so that the repeatability and failure parameters of the fuse length can be maintained within acceptable tolerance.

Abstract: A lamp capable of emitting electromagnetic radiation (9), for example visible, IR or UV radiation, exploiting the activation of substances (4) triggered with an antenna (6) irradiating microwaves (8) located inside and insulated, in focal position. Advantageously, the substances (4) are put into a chamber (3) obtained by introduction of a first bulb (1) in a second bulb, in order to form the chamber (3) closed between the walls of the first (1) and of the second bulb (2), the walls of the first bulb defining the recess (5) which houses the antenna (6). A better energy efficiency and a better economy is obtained with respect to the conventional techniques which require introduction of the lamp in a metal vessel crossed by microwaves, or under external microwaves beams. It belongs to the category of lamps without electrodes, because the atoms or the other particles that emit the radiation (8) are neither in contact with the antenna nor with other metal parts.

Abstract: The reflector for a light of higher power has a base body made of glass or glass ceramic and a protective jacket provided on the outer surface of the base body. The base body is formed with a receptacle for a light source, especially a gas discharge lamp, and an interior mirror surface for reflecting light. The protective jacket includes a mat or is a mat-shaped body, i.e. a woven or knit textile fabric of natural or synthetic material. Preferably it is a glass-fiber-reinforced mat. In addition to preventing splinters from flying around, the protective jacket advantageously also provides temperature equalization throughout the reflector. It also helps to prevent scattered light. The protective mat or jacket may be attached to the base body with an adhesive, such as a water glass.

Abstract: A bulb-type fluorescent lamp has a case having an open end portion for housing a lighting circuit therein, an arc tube extending outside through the open end portion of the case, and a globe having an open end portion for housing the arc tube therein. An adhesive is supplied to the inner surface of the open end portion of the case at four circumferentially spaced areas, and the open end portion of the globe is inserted into the open end portion of the case. As a result, the globe is fixed to the case with the adhesive.

Abstract: A mount assembly (10) for an arc discharge vessel has a glass stem (12) having a longitudinal axis (14) that includes a flare (16) with a barrel portion (18) and a seal portion (20) containing at least two relatively rigid stem-leads, (22 and 24), projecting therefrom A relatively rigid wire frame (26) is provided with the frame (26) having a distal end (28) and a proximal end (30). A loop portion (32) is formed at the proximal end (30) and has a diameter substantially equal to the diameter of the barrel (18) and is affixed thereto. The distal end (28) of the wire frame (26) extends away from the barrel portion in a direction transverse to the plane of the loop portion (32). An arc discharge vessel (34, 34a), having a substantially linear configuration and having electrode connections (36) and (38) extending from the ends thereof is positioned on the longitudinal axis (14) and is affixed to the wire frame.

Abstract: The invention relates to an illumination unit having an electric lamp which has a lamp vessel having a sealed-off end in the form of a glass base, and having an envelope which at least partially surrounds the lamp vessel and rests on the lamp vessel such that the glass base protrudes from the envelope.

Abstract: A heat controlled ultraviolet light apparatus includes a source of ultraviolet light, a cover, and a heating or cooling element that heats/cools the space or gap between the ultraviolet light source and the cover. Accordingly, the ultraviolet light source may be maintained at an optimal temperature thereby maximizing the efficiency of the ultraviolet light source in producing ultraviolet radiation. The apparatus may further include a temperature sensor and a control circuit to automatically control production of heat/cooling by the element based upon the ambient temperatures experienced by the ultraviolet light source during use. Methods are also provided for sanitizing heating and cooling coils of various devices such as an HVAC system, and cooling systems such as a refrigeration unit and an evaporative cooler.

Abstract: A high intensity discharge (HID) headlight structure according to the invention includes a light bulb base and a light tube. One end of the light bulb tube is provided with a positioning base consisted of an upper cover and an accommodating washer. The light tube is fastened in the light bulb base via the positioning base. An interior of the light tube is provided with a light source having a positive electrode and a negative electrode. An exterior of the light source is a light capsule as a formed integral. The positive and negative electrodes are penetrated to an exterior via two ends of the light capsule. One electrode of the positive and negative electrodes, after being penetrated out of the light capsule, is bent by two times, connected with a conductor, and accommodating by an accommodating tube.

Abstract: A discharge lamp is disclosed comprising an enclosed discharge vessel for the generation of an electrical discharge and a casing made of glass which surrounds the discharge vessel. In order to achieve as constant properties as possible over the service life of the lamp, it is proposed that the glass material of the casing be doped with sodium in a concentration of at least 10 ppm, and preferably at least 30 ppm. According to a further embodiment, it is proposed that other alkali metals (except for sodium) be contained in a maximum concentration of 25 ppm. Surprisingly, by the appropriate choice of the outer bulb, not in direct contact with the actual discharge, the diffusion of sodium from the discharge vessel is reduced. In addition to this, the material of the outer bulb has a reduced inclination to crystallization.

Abstract: A metal halide lamp has an arc tube including an envelope as an arc tube container made of an oxide-based translucent ceramic material, and the arc tube is filled with luminescent materials comprising at least a cerium halide, a sodium halide, a thallium halide and an indium halide. An amount of the cerium halide is in a range from 20 wt % to 69.0 wt %, an amount of the sodium halide is in a range from 30 wt % to 79.0 wt %, and a total amount of the thallium halide and the indium halide is in a range from 1.0 wt % to 20 wt % with respect to the entire metal halides. Accordingly, the arc discharge is spread, bending of the arc discharge toward the arc tube wall is suppressed, and thus, the metal halide lamp has improved luminescent efficiency, where lowering of the flux maintenance factor is suppressed even after a long-time use, and hues of the luminescent colors are corrected.

Abstract: A method and apparatus that effectively filters infrared light from fluorescent lighting and that is easily adapted to typical fluorescent lighting and assemblies. A transparent tube is provided for receiving a fluorescent lamp wherein the transparent tube includes a first end, a second end, an inner surface and an outer surface. An infrared block is located adjacent to the inner surface of the transparent tube. Furthermore, a first cap is provided for capping the first end of the transparent tube and a second cap is provided for capping the second end of the transparent tube.

Abstract: A protected lamp assembly includes a tubular lamp enclosed within a tubular protective housing. The lamp is supported by grommets or bushings of a resilient material that are retained within the housing. An end cap assembly may include the bushing for the lamp and also support the protective housing. Conductors through the end caps communicate with the lamp electrodes. In alternate embodiments the conductors may emerge from one of the end caps or the end caps may include a conductive coating with a connection to the lamp electrodes.

Abstract: An electric discharge lamp includes a light transmissive inner jacket that defines a sealed inner chamber, a first material in the inner chamber that emits light when activated, and a light transmissive outer jacket around the inner jacket. The outer jacket defines a sealed outer chamber between the inner and outer jackets that contains a second fill material. The second fill material, when activated by heat from the inner chamber when the lamp is operating, converts ultraviolet (UV) and deep blue light emitted from the inner chamber to visible light, thereby increasing an amount of visible light transmitted through the outer jacket compared to an amount of visible light transmitted through the inner jacket.

Abstract: A miniature or subminiature incandescent lamp designed to operate with an energy source of 20 volts or less includes a filament enclosed in a first glass envelope and supported by a pair of metal contact pins. A first glass bead seals the envelope and has a pair of openings through which the metal contact pins penetrate and wherein they are hermetically sealed. A second glass bead of low melting solder glass is larger than the first bead and is sealed below the first bead and extends circumferentially beyond the perimeter of the first bead. A third bead of high melting glass is disposed below the second bead also in sealing relationship with the second bead. The outside perimeter of the third bead is substantially co-extensive with that of the second bead. A second glass envelope is sealed to the outside perimeter of the second bead and is also in abutting relationship with the third bead. The interior of the first envelope is evacuated or contains an inert gas of the type normally used in incandescent lamps.

Abstract: A mount assembly (20) for a lamp has a glass stem (22) having a first portion (24) that is tubular and has an outside diameter D2 and a second portion (26) formed as a pinch seal with at least one dimension greater than D2. A substantial C-shaped clip (10) is mounted upon the first portion (24). The C-shaped clip (10) has a given height H and an inside diameter D that is smaller than the outside diameter D2 whereby the clip (10) frictionally engages the first portion (24). A pair of substantially oppositely located cutouts (12, 14) is formed in the clip (10), each providing an extending flap (16, 18) projecting away from the clip (10). The clip is positioned on the first portion (24) such that at least a part of said second portion (26) is contained within the cutouts (12, 14). A first frame member (28) is affixed to the flap (16) and a second frame member (28) is affixed to the flap (18). This assembly accurate supports the structure and prevents rotation of the mount assembly.

Abstract: A discharge lamp is disclosed comprising an enclosed discharge vessel for the generation of an electrical discharge and a casing made of glass which surrounds the discharge vessel. In order to achieve as constant properties as possible over the service life of the lamp, it is proposed that the glass material of the casing be doped with sodium in a concentration of at least 10 ppm, and preferably at least 30 ppm. According to a further embodiment, it is proposed that other alkali metals (except for sodium) be contained in a maximum concentration of 25 ppm. Surprisingly, by the appropriate choice of the outer bulb, not in direct contact with the actual discharge, the diffusion of sodium from the discharge vessel is reduced. In addition to this, the material of the outer bulb has a reduced inclination to crystallization.

Abstract: An interceptor missile including an infrared radiation detection subsystem and a window assembly in the hull of the missile optically coupled to the infrared radiation detection subsystem. The window assembly includes an inner window, an outer window, and a support subsystem between the inner and the outer windows defining a plurality of infrared transparent fluid flow cooling channels between the inner and outer windows. A source of fluid coupled to the cooling channels for cooling the outer window without adversely affecting the optical properties of either window.

Abstract: A method and apparatus that effectively filters infrared light from fluorescent lighting and that is easily adapted to typical fluorescent lighting and assemblies. A transparent tube is provided for receiving a fluorescent lamp wherein the transparent tube includes a first end, a second end, an inner surface and an outer surface. An infrared block is located adjacent to the inner surface of the transparent tube. Furthermore, a first cap is provided for capping the first end of the transparent tube and a second cap is provided for capping the second end of the transparent tube.

Abstract: A metal halide lamp has an arc tube including an envelope as an arc tube container made of an oxide-based translucent ceramic material, and the arc tube is filled with luminescent materials comprising at least a cerium halide, a sodium halide, a thallium halide and an indium halide. An amount of the cerium halide is in a range from 20 wt % to 69.0 wt %, an amount of the sodium halide is in a range from 30 wt % to 79.0 wt %, and a total amount of the thallium halide and the indium halide is in a range from 1.0 wt % to 20 wt % with respect to the entire metal halides. Accordingly, the arc discharge is spread, bending of the arc discharge toward the arc tube wall is suppressed, and thus, the metal halide lamp has improved luminescent efficiency, where lowering of the flux maintenance factor is suppressed even after a long-time use, and hues of the luminescent colors are corrected.

Abstract: Metal halide lamp includes an arc tube and a surrounding tubular quartz sleeve between a pair of parallel wire frame members mounted to a glass stem containing current supply leads. The sleeve is provided with two pairs of diametrically opposed apertures, each pair of apertures receiving an elongate wire U-clip which engages a pinched end of the arc tube inside the sleeve and the frame members outside the sleeve. Distal ends of each U-clip are welded to a frame member to fix the position of the arc tube and the sleeve.

Abstract: A mounting member for supporting a shroud, and an arc tube located within such shroud, in an arc discharge lamp is provided. The mounting member includes at least two support clips welded to at least one support rod on the same side of the support rod. A bubble-in-the-press arc lamp is provided having at least one press seal that includes opposite walls. A bubble portion is formed in one wall, and the other wall includes a protrusion. The bubble portion extends towards one wall and the protrusion extends towards the other wall to hold a support clip of a supporting member therebetween. An electric lamp assembly is provided that includes the mounting means and/or the bubble-in-the-press arc tube of the present invention.

Abstract: This invention relates to dimmable metal halide lamps using ceramic arc tubes for the application of energy saving, mood control, and constant light output over the life of the lamp. Under dimmed conditions, as low as 50% of rated wattage, the color temperature (CCT) can remain substantially the same and be perceived by the viewer as a constant color light source. Furthermore, the invention improves the color rendering index (CRI) and the efficacy of the lamp under dimmed operation. Such improvements are provided by placing a metal shield on an end of the arc tube, whereby the emissivity of the shield is lower than the emissivity of the ceramic in the arc tube, whereby cold spot temperature in the lamp is increased, even under dimmed conditions.

Abstract: The invention relates to a tubular lamp, particularly relates to a high-intensity parapet lamp for road or bridge, which can display various colors and is controlled by computer program. The cavity of the lamp is sealed with soldered illuminants and light-reflecting circuit board; the power supply wires pass through the inner tube and the ends of the power supply wires are connected to multi-contact connector assemblies. The lamp is lit up at night and is controlled by computer program to produce a flowing effect which can indicate the direction.

Abstract: Apparatus and method for detecting geological anomalies occuring in geological formations. The instrumentation comprises a medium frequency continuous wave narrowband FM transmitter and receiver pair. Two instrument configurations are downhole instruments for insertion into boreholes. Survey procedures are provided to detect anomalies through signal attenuation, path attenuation and signal phase shift. Continuity measurements at different depths in the drillholes provide data to determine the existence of anomalies. Tomographic techniques are employed to provide a visual image of the anomaly. Computer aided reconstruction techniques provide such visual images from the generated data.