A dimmable induction RF fluorescent lamp comprising a dimming circuit enabling the induction RF fluorescent lamp to dim in response to a signal from an external dimming circuit, and having a main mercury amalgam having a vapor pressure at room temperature which is higher than the vapor pressure of the mercury amalgam formed on the flag.

A dimmable induction RF fluorescent lamp comprising a dimming circuit enabling the induction RF fluorescent lamp to dim in response to a signal from an external dimming circuit, and having a main mercury amalgam having a vapor pressure at room temperature which is higher than the vapor pressure of the mercury amalgam formed on the flag.

An RF fluorescent lamp, comprising a bulbous vitreous portion of the RF fluorescent lamp comprising a vitreous envelope filled with a working gas mixture, a power coupler to induce an alternating electric field within the vitreous envelope, an electronic ballast, and a mercury amalgam accommodating structure mounted within the lamp envelope and adapted to absorb power from the electric field to rapidly heat and vaporize an amalgam of mercury to rapidly illuminate the lamp envelope during a turn-on phase of the RF fluorescent lamp, wherein the structure is comprised of a substrate material coated with a mixture of indium and gold.

An RF fluorescent lamp, comprising a bulbous vitreous portion of the RF fluorescent lamp comprising a vitreous envelope filled with a working gas mixture, a power coupler to induce an alternating electric field within the vitreous envelope, an electronic ballast, and a mercury amalgam accommodating structure mounted within the lamp envelope and adapted to absorb power from the electric field to rapidly heat and vaporize an amalgam of mercury to rapidly illuminate the lamp envelope during a turn-on phase of the RF fluorescent lamp, wherein the structure is comprised of a substrate material coated with a mixture of indium and gold.

Implantable medical devices including a housing that contains operational circuitry for the implantable medical device and a dispensed hydrogen getter. The hydrogen getter may include a getter carrier material and one or more getter materials carried as suspensions in the getter carrier material, with the getter materials taking the form of organic compounds, such as fatty acids, or powdered metal oxides, or combinations thereof. The hydrogen getter may instead be comprised of two fatty acids having different melt temperatures. The hydrogen getter may be dispensed onto an encapsulant layer or other component of the implantable medical device, or may be blended into an encapsulant layer.

Implantable medical devices including a housing that contains operational circuitry for the implantable medical device and a dispensed hydrogen getter. The hydrogen getter may include a getter carrier material and one or more getter materials carried as suspensions in the getter carrier material, with the getter materials taking the form of organic compounds, such as fatty acids, or powdered metal oxides, or combinations thereof. The hydrogen getter may instead be comprised of two fatty acids having different melt temperatures. The hydrogen getter may be dispensed onto an encapsulant layer or other component of the implantable medical device, or may be blended into an encapsulant layer.

An X-ray tube includes a vacuum-sealed tube housing evacuated to a pressure of 10.sup.?7 mbar or lower, a cathode assembly inside the housing including an electron emitter adapted to emit electrons when heated at a temperature included in a defined working temperature range and at least one component containing carbon in an amount of at least 20% by weight, especially at least 30% by weight, even more especially at least 50% by weight, the at least one component being preferably designed for holding the emitter, and an anode assembly inside the housing including a target layer for receiving electrons emitted by the electron emitter, wherein the electron emitter preferably includes boride, preferably lanthanum hexaboride (LaB.sub.6), and wherein the cathode assembly is designed such that if the emitter temperature is included in the working temperature range.

An X-ray tube includes a vacuum-sealed tube housing evacuated to a pressure of 10.sup.?7 mbar or lower, a cathode assembly inside the housing including an electron emitter adapted to emit electrons when heated at a temperature included in a defined working temperature range and at least one component containing carbon in an amount of at least 20% by weight, especially at least 30% by weight, even more especially at least 50% by weight, the at least one component being preferably designed for holding the emitter, and an anode assembly inside the housing including a target layer for receiving electrons emitted by the electron emitter, wherein the electron emitter preferably includes boride, preferably lanthanum hexaboride (LaB.sub.6), and wherein the cathode assembly is designed such that if the emitter temperature is included in the working temperature range.

A processor controlled induction RF fluorescent lamp, where the control processor runs a load control algorithm at least for switching the electrical load for connection to an external dimming device, the lamp comprising a vitreous envelope filled with an ionizable gas mixture; a power coupler comprising at least one winding of an electrical conductor; and an electronic ballast providing appropriate voltage and current to the power coupler.

An ultraviolet light emitting device comprises: a first substrate having a main surface; a second substrate facing the main surface of the first substrate; a gas in a space between the first substrate and the second substrate; electrodes directly or indirectly on the main surface of the first substrate; a dielectric layer that is located directly or indirectly on the main surface of the first substrate and covers the electrodes; and a first light-emitting layer. The first light-emitting layer is located directly or indirectly on the dielectric layer and emits ultraviolet light in the gas due to electrical discharge between the electrodes. The first light-emitting layer is thicker in first regions on the dielectric layer than in second regions. The second regions include at least part of regions directly above the electrodes.