Abstract: A radiofrequency calibration system for a direct-drive radiofrequency power supply includes a reference box that includes a reference circuit for converting a non-reference input impedance to a reference output impedance. The reference box has an input connector electrically connected to a radiofrequency output coupling of the direct-drive radiofrequency power supply. A radiofrequency power meter has a radiofrequency power input electrically connected to an output connector of the reference box. The radiofrequency power meter has an input impedance and an output impedance that substantially match the reference output impedance of the reference box. A cable has a first end electrically connected to a radiofrequency power output of the radiofrequency power meter and a second end connected to a test load that has an impedance that substantially matches the reference output impedance of the reference box. A controller is connected in data communication with a data interface of the radiofrequency power meter.

Abstract: A plasma processing chamber has an upper window with a coil disposed above the upper window. A coil connection enclosure is disposed above the coil. A metrology enclosure is disposed above the coil connection enclosure. A spectral reflectometry system is disposed within the metrology enclosure. The spectral reflectometry system includes an optical collimator positioned to direct a beam of light through an opening in the metrology enclosure, an opening in the coil connection enclosure, and the upper window into the plasma processing chamber. The optical collimator is also configured to receive reflected light from within the plasma processing chamber, where the reflected light passes through the upper window and through the opening in the coil connection enclosure and through the opening in the metrology enclosure. A tip angle and a tilt angle of the optical collimator are remotely adjusted to optimize an orientation of the optical collimator.

Abstract: A UV lamp assembly having rotary shutters. Each rotary shutter has a concave wall with a reflective concave surface. The rotary shutters can be collectively rotated between an open position and an closed position. At the open position, the rotary shutters do not block UV light of UV lamps from leaving the UV lamp assembly while at the closed position the rotary shutters block UV light from leaving the UV lamp assembly.

Abstract: A UV lamp assembly having rotary shutters. Each rotary shutter has a concave wall with a reflective concave surface. The rotary shutters can be collectively rotated between an open position and an closed position. At the open position, the rotary shutters do not block UV light of UV lamps from leaving the UV lamp assembly while at the closed position the rotary shutters block UV light from leaving the UV lamp assembly.

Abstract: The present invention is embodied in a portable self contained ventilating appliance, including an interface device coupled to at least one of an oral cavity or nasal cavity of a user, a ventilation device physically extending from the interface and configured to deliver pressurized air to the user through the interface, and a sensor monitoring system coupled to the interface and the ventilation device and configured to monitor the user.

Abstract: An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and constructed of material which is custom-molded to the user. An external negative air supply is provided which connects to a tube extending from the appliance and draws air from the hollow appliance creating a partial vacuum in the user's retroglossal area urging the user's tongue and soft palate away from the user's posterior pharyngeal wall and thereby opening an airway to the user's nasal cavity. A sensor provides control information to the negative air supply by sensing relative pressure in the user's oral cavity. The natural breathing cycle is thus facilitated but not controlled by the appliance.

Abstract: An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and is custom-molded to the oral cavity for biasing tissues surrounding the user's natural airway to keep the airway open. An external positive air supply is also provided which connects to a tube extending from the appliance and forces air through the hollow appliance to a rear opening of the appliance in the user's retroglossal area. A sensor provides control information to the positive air supply by sensing relative pressure in the user's oral cavity. The natural breathing cycle is thus enhanced but not controlled by the appliance.

Abstract: An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and is custom-molded to the oral cavity for biasing tissues surrounding the user's natural airway to keep the airway open. An external positive air supply is also provided which connects to a tube extending from the appliance and forces air through the hollow appliance to a rear opening of the appliance in the user's retroglossal area. A sensor provides control information to the positive air supply by sensing relative pressure in the user's oral cavity. The natural breathing cycle is thus enhanced but not controlled by the appliance.