34results about "Individual electrode mounting" patented technology

An apparatus for producing light includes a chamber that has a plasma discharge region and that contains an ionizable medium. The apparatus also includes a magnetic core that surrounds a portion of the plasma discharge region. The apparatus also includes a pulse power system for providing at least one pulse of energy to the magnetic core for delivering power to a plasma formed in the plasma discharge region. The plasma has a localized high intensity zone.

An improved support is provided for locating a lamp filament axially within a lamp sleeve. The illustrated support is a spiral coil that includes a small diameter center portion that makes contact with the filament. On either side of the filament-contacting portion, the coil opens up to larger diameters for contacting the inner wall of the quartz sleeve within which the filament is housed. The support thus appears H-shaped when viewed from the side. A lamp filament is also provided with expansion compensation sections at either end of a central section. The filament wire in the compensation sections is wound into coils having a greater diameter and also a greater spacing between windings, as compared to coil in the central section. The expansion compensation sections are preferably capable of compressing and thereby absorbing thermal expansion of the filament during operation, without shorting the filament across adjacent windings.

A high dose output, through transmission target X-ray tube and methods of use includes, in general an X-ray tube for accelerating electrons under a high voltage potential having an evacuated high voltage housing, a hemispherical shaped through transmission target anode disposed in said housing, a cathode structure to deflect the electrons toward the hemispherical anode disposed in said housing, a filament located in the geometric center of the anode hemisphere disposed in said housing, a power supply connected to said cathode to provide accelerating voltage to the electrons.

An apparatus for producing light includes a chamber that has a plasma discharge region and that contains an ionizable medium. The apparatus also includes a magnetic core that surrounds a portion of the plasma discharge region. The apparatus also includes a pulse power system for providing at least one pulse of energy to the magnetic core for delivering power to a plasma formed in the plasma discharge region. The plasma has a localized high intensity zone.

A dispenser cathode which comprises an emission surface, a reservoir for material releasing, when heated, work-function-lowering particles, and at least one passage for allowing diffusion of work-function-lowering particles from said reservoir to said emission surface, said emission surface comprising at least one emission area and at least one non-emission area covered with emission-suppressing material and surrounding each emission area, said non-emission area comprising at least one passage connecting said reservoir with said non-emission area and debouching within a diffusion length distance from an emission area for allowing diffusion of work-function-lowering particles from said reservoir to said emission area.

A chemical vapor deposition source that includes at least one plate to which first and second electrical connection posts are coupled. The chemical vapor deposition source also includes a filament having a first end and a second end. The first end of the filament is electrically connected to the first electrical connection post and the second end of the filament is electrically connected to the second electrical connection post. The chemical vapor deposition source further includes at least one filament holder electrically insulated from the at least one plate. The at least one filament holder holds a portion of the filament between the first end and the second end.

A cathode system having a cathode element configured to extend through an aperture in a wall of an arc chamber of an ion implanter system. A gas flow through a spacing between the cathode element and the aperture is restricted by a restriction member. A method of ionizing a source gas and a cathode element incorporating the restriction member are also provided.

A fluorescent display tube, which has short-length filaments, can be driven by applied voltage of 3-8V to be used for a general fluorescent display tube. The fluorescent display tube can emit sufficient thermal electrons even if the number of filament cathodes is decreased to reduce power consumption of the filaments. The filament cathode is arranged between a first and third supporting plates by one end thereof fixed to the first supporting plate and the other end thereof fixed to the third supporting plate, and the filament cathode having an equal length with the filament cathode extended between the first and third supporting plates is arranged between the second and third supporting plates.

The indirectly heated cathode structure includes a base metal having a thermal electron emitting material layer, a cylindrical sleeve holding the base metal at one end portion thereof and housing a heating heater in the inside thereof, an support having a large-diameter portion and g a small-diameter portion, and a cathode disc having a large-diameter portion at the leg-portion-side of the heating heater and having a small-diameter portion at the heater-main-portion side of the heating heater, wherein an outer surface of another end portion of the sleeve and an inner surface of the small-diameter portion of the support are fixed to each other, and an outer surface of the large-diameter portion of the support and an inner surface of the small-diameter portion of the cathode disc are fixed to each other.

A cathode assembly includes an insulation member, three holders arranged inline in the insulation member, and a support member having a rim portion in which the insulation member is inserted and supported. When a thickness of the insulation member is D millimeters (mm) and a height of the support member is F millimeters (mm), values of D and F are set to satisfy the following inequality: F / D<170%.

An annular cathode for a vacuum tube includes a central cylindrical support whose axis is that of the cathode; an outer peripheral electron emitter with annular section whose axis is that of the cathode, extending over the outer perimeter of the cathode; and a folded skirt, secured at an inner end to the central support, and secured, at its outer end, to a plurality of lugs; each lug being disposed in series with the folded skirt, and secured with the folded skirt and with the inner surface of the electron emitter.

An incandescent lamp that is specially adapted for use in combination with a concave reflector in providing a high-intensity beam of light. The lamp includes an optimized filament shape that consist of a filament arranged in coiled coils having a longitudinal axis perpendicular to the reflector longitudinal axis and the larger coils of the coiled coil filament spaced from each other by a distance substantially the same as the filament coil diameter. The filament length, width, and height can be limited to substantially twelve millimeters to optimize the lamp for use with concave reflectors having a focal length of substantially twenty five millimeters, any type curvature, and any size diameter.

In an electron tube including vibration absorbers for linear members such as filaments, a vibration absorbing means that is made of a vibration absorber with a large vibration absorption effect, has a simple configuration, and is attachable easily to filaments is provided. The vibration absorbing means is formed of a holder 231, a vibration absorber 241, and a getter shielding member 251. These three members are attached to a shielding electrode S overlying the front substrate 111 to dispose the vibration absorber 241 between the holder 231 and getter shielding member 251. The vibration absorber 241 is mounted to slide or rotate between the holder 231 and the getter shielding member 251. The vibration absorber 241 has an aperture 2413 in which the filament is engaged. The bottom (apex) of the aperture 2413 is formed eccentrically. The vibration absorber 241 is in line contact with the shielding electrode S, as shown in FIG. 3(c).

An incandescent lamp that is specially adapted for use in combination with a concave reflector in providing a high-intensity beam of light. The lamp includes an optimized filament shape that consist of a filament arranged in coiled coils having a longitudinal axis perpendicular to the reflector longitudinal axis and the larger coils of the coiled coil filament spaced from each other by a distance substantially the same as the filament coil diameter. The filament length, width, and height can be limited to substantially twelve millimeters to optimize the lamp for use with concave reflectors having a focal length of substantially twenty five millimeters, any type curvature, and any size diameter.

An X-ray tube includes: a cathode with a filament; an anode target; and a vacuum envelope. The cathode has a metal lead support body that constitutes a part of the vacuum envelope and is exposed to the outside of the vacuum envelope, and is attached such that a lead wire that supplies electricity to the filament passes through the vacuum enclosure. and a metallic filament support fixed to the lead support so as to contact the lead support and supporting the filament.

A cathode structure comprises a heater including a columnar ceramic body and a heating wire that is partially buried in the ceramic body, and a cathode unit disposed at a first end surface of the ceramic body. The heating wire leads out from a second end surface of the ceramic body.