Abstract:
The present invention provides a fixture or device which is particularly adapted for installation within a confined compartment of an aircraft, such as a lavatory, galley or cockpit, and which emits UVC within safe limits, i.e., within prescribed safe wavelengths, irradiance, and times (below the ‘Actinic Dose’) while the compartment is occupied, to continuously disinfect the interior air and prevent transmission of not only viruses, but pathogens and the like. The device is preferably a triangular prism which houses a metal core pcBoard, a controller pcBoard and at least one support frame which are fabricated from a heat dissipating metal, as is the hypotenuse of the prism.
Abstract:
Methods for the treatment of ischemic limbs. An energy source, which will typically be a laser energy source deployed through an optic fiber, is deployed subcutaneously to a site of ischemic skeletal muscle. At the site, a plurality of channels are preferably systematically formed with an appropriate amount of activated energy, which in turn can facilitate the restoration of blood flow through new blood vessel formation. Optionally, a needle or cannula can be deployed in conjunction with the energy source to help facilitate the formation of channel formation and/or deliver a therapeutic agent at the sight of channel formation. A sheath may also be utilized to house the optic fiber and deliver a therapeutic agent.
Abstract:
Fluorescent lamps that comprise a glass envelope with an exterior surface and first and second electrodes located within the glass envelope include a transparent electrically conductive material affixed to the exterior surface of the glass envelope. The transparent electrically conductive material extends between the vicinity of the first electrode and the vicinity of the second electrode, thereby providing a path for an electric current to pass between the first and second electrodes and reduce the open circuit voltage required to start the fluorescent lamp. The transparent electrically conductive material affixed to the exterior surface of the glass envelope can comprise one or more stripes of the material so that less than the total exterior surface area of the glass envelope is covered by the transparent electrically conductive material.
Abstract:
A photomask and method of patterning a photosensitive layer using a photomask, the photomask including a substrate and a film coupled to substrate. The film is etched with a phase shifted assist feature, a low aspect ratio assist feature or phase shifted low aspect primary features.
Abstract:
A method and system to supply current to a high pressure lamp is provided, the method and system comprising an alternating lamp current waveform with a half cycle mean amplitude I1 and a half cycle time duration T, a current pulse waveform including at least one current pulse with a half cycle mean amplitude I2 and at least one current pulse occurring after the trailing edge of a half cycle of the alternating lamp current, the pulse having a half cycle duration of Tp. These waveforms are combined to generate a current waveform including a current pulse waveform, the current pulse waveform starting after a time delay Td from the trailing edge of a half cycle of the alternating lamp current waveform, the time duration Tp of the at least one current pulse lasting less than the remaining time before the leading edge of the second half cycle of the alternating lamp current waveform. The combined current waveform supplies current to a high pressure lamp and produces a cone shaped tip protrusion which reduces lamp flicker.
Abstract:
A discharge lamp having a starting assembly is provided for use with existing high frequency electronic ballasts. The lamp comprises a light-transmissive envelope and has a discharge sustaining fill of an inert gas mixture of krypton and argon. The starting assembly comprises at least one conductive path attached to the outside or inside surface of the envelope or embedded in the envelope.
Abstract:
A gas discharge lamp includes an arc envelope and a cooling device. Cooling passage is provided between the arc envelope and the cooling device. An airflow blocking structure is mounted rotatably to the arc envelope. The airflow blocking structure blocks airflow between the cooling device and the arc envelope except for a portion of the passage directed towards a top side of the arc envelope.
Abstract:
A ceramic arctube for use in a high intensity discharge lamp. The arctube includes a ceramic light transmitting tube which surrounds the arc. The light transmitting tube has two or more features selected from the group consisting of (a) an inner diameter less than 2.6 mm, (b) a wall thickness of less than 1.4 mm, (c) an average grain size of greater than 20 microns or less than 5 microns or real in-line transmission (RIT) greater than 20%, and (d) an inner surface or outer surface having an Ra value less than 100 nm. These features lead to a smaller apparent size of the arc source and less scattering of light, resulting in improved performance of the arctube in a reflector lamp.
Abstract:
A light emitting apparatus is provided. The light emitting apparatus includes a light transmissive envelope, a light source being in thermal communication with a heat sink, and a plurality of heat fins in thermal communication with the heat sink and extending in a direction such that the heat tins are adjacent the light transmissive envelope. The plurality of heat fins comprises a carbon nanotube filled polymer composite.
Abstract:
A high intensity discharge lamp, the lamp including a light emitting vessel having a wall made of ceramic material that defines an inner space with a first end portion having a respective first opening formed therein and a second end portion having a respective second opening formed therein, two discharge electrodes, with a first electrode extending therethrough the first opening of the first end portion of the vessel and a second electrode extending therethrough the second opening of the second end portion of the vessel, together forming a gap between ends of the discharge electrodes positioned within the vessel, wherein the light emitting vessel defines an inner space characterized by an inner diameter ranging from and including 1 millimeters to 3 millimeters and an inner length between and including 5 millimeters to 10 millimeters, wherein the wall of the vessel has a thickness ranging between and including 0.3 millimeters to 0.8 millimeters, wherein each tip of the electrodes within the vessel have a shank diameter ranging between and including 0.2 millimeters to 0.55 millimeters, and wherein the gap between the ends of the electrodes positioned within the vessel is smaller than 4 millimeters.