Abstract: An ion source has an arc chamber with a first end and a second end. A first cathode at the first end of the arc chamber has a first cathode body and a first filament disposed within the first cathode body. A second cathode at the second end of the arc chamber has a second cathode body and a second filament disposed within the second cathode body. A filament switch selectively electrically couples a filament power supply to each of the first filament and the second filament, respectively, based on a position of the filament switch. A controller controls the position of the filament switch to alternate the electrical coupling of the filament power supply between the first filament and the second filament for a plurality of switching cycles based on predetermined criteria. The predetermined criteria can be a duration of operation of the first filament and second filament.

Abstract: An ion source has an arc chamber with a first end and a second end. A first cathode at the first end of the arc chamber has a first cathode body and a first filament disposed within the first cathode body. A second cathode at the second end of the arc chamber has a second cathode body and a second filament disposed within the second cathode body. A filament switch selectively electrically couples a filament power supply to each of the first filament and the second filament, respectively, based on a position of the filament switch. A controller controls the position of the filament switch to alternate the electrical coupling of the filament power supply between the first filament and the second filament for a plurality of switching cycles based on predetermined criteria. The predetermined criteria can be a duration of operation of the first filament and second filament.

Abstract: The present invention is directed to devices for cleansing, beautifying, and improving the health of skin through exfoliation, brushing, and light therapy. A light therapy device may include a detachable treatment head having a treatment surface. One or more light sources may be located behind the detachable treatment head causing specific wavelengths of light to be emitted through detachable treatment head and/or treatment surface. For example if the treatment surface is comprised of bristles forming a brush, the light may travel inside or along the surface of the bristles. One or more buttons located on the device may be used to activate the light source and select a particular wavelength, such as such as 420 nm for blue or 550 nm for red. A switch may also be used to control the fluency or amount of light energy delivered to the skin.

Abstract: A device for performing skin treatments which includes a cartridge having a compartment for holding a treatment fluid and a reservoir for receiving a waste fluid, both of which are in communication with a source of vacuum pressure. The vacuum source withdraws the treatment fluid through an outlet in an applicator head and then draws used fluid into the waste reservoir. The applicator head can include an abrasive material for performing microdermabrasion and/or an anode and cathode for applying microcurrents.

Abstract: A computer-implemented method is disclosed for encouraging downloads of a game. The method includes displaying an achievement advertisement and subsequently receiving input indicative of the achievement advertisement. The input is responded to by displaying a download component related to a game associated with the achievement advertisement.