Abstract: A Far UV C excimer bulb assembly including an excimer bulb, and a curved filter external to and separated from the excimer bulb. The curved filter being hafnium based and including an arc. The excimer bulb emits radiation in a plurality of wavelengths substantially comprising Far UV C. The curved filter having a cut-off wavelength of 234 nm and adapted to block substantially all wavelengths of UV C radiation longer than 234 nm. The excimer bulb is positioned at least partially and centered within the arc so that the majority of the Far UV C wavelengths of radiation pass perpendicularly through the curved filter. The assembly may further include a mirror which may also be curved, and plated onto the exterior surface of the excimer bulb.

Abstract: An excimer bulb assembly including an excimer bulb emitting a beam of UV light at a wavelength of 222 nm. The excimer bulb may include a filter that blocks any unwanted wavelengths of UV light. The assembly includes a focusing lens positioned a distance from the excimer bulb such that the emitted beam of UV light strikes the focusing lens at an angle. The distance between the excimer bulb and the focusing lens may be varied such that the angle changes when the distance is varied. A plurality of excimer bulbs emitting a beam of UV light at a wavelength of 222 nm in a pattern may be including in a fixture. The fixture may include a housing with the plurality of excimer bulbs are secured in the housing. At least one of the plurality of excimer bulbs may be adapted to independently swivel with respect to the housing so as to change the pattern of the emitted beam of UV light. Each of the plurality of excimer bulbs may be adapted to independently tilt with respect to the housing.

Abstract: An excimer bulb assembly, with an excimer bulb, at least one integral captured reflector, and an integral filter such that the excimer bulb only emits substantial UV radiation between 200 nm and 230 nm, using a filter that passes light from about 200 nm to 234 nm (+/?2 nm).

Abstract: A Far UV C excimer bulb assembly including an excimer bulb, and at least two filters. The excimer bulb emits a path of light in at least two wavelengths. The at least two filters remove all wavelengths of light that are hazardous to human tissue. The at least two filters may each be placed perpendicular to the path of the light generated by the excimer bulb. The at least two filters may be a single, curved or cylindrical filter. The assembly may further include a mirror which may also be curved.

Abstract: An excimer bulb fixture including an excimer bulb emitting a beam of UV light at a far UV C wavelength. The fixture includes a krypton/chloride bulb, a band pass filter and a diffusion layer or lens. The krypton/chloride bulb is adapted to project a beam of far UV C light through the filter and then through the diffusion layer or lens. The band pass filter is adapted to block substantial UV radiation wavelengths longer than 234 nm. The diffusion layer or lens is adapted to widen the beam of far UV C light. A method far widening a beam of far UV C light includes the steps of projecting a beam of far UV C light produced by a krypton/chloride bulb through a band pass filter; blocking substantially UV C radiation longer than 234 nm; projecting the filtered beam through a diffusion filter or lens; and, widening the filtered beam.

Abstract: An excimer bulb assembly including an excimer bulb and a pass filter such that the excimer bulb assembly does not emit substantial UV radiation in wavelengths longer than 231 nm, 232 nm, 233 nm, 234 nm or 235 nm. The wavelengths are measured at an incident angle of zero (0) degrees to the filter plane. The pass filter is preferably constructed of a plurality of layers of hafnium oxide, and most preferably constructed of less than seventy five (75)layers of hafnium oxide. The excimer bulb, pass filter, and two electrical connectors may be adapted to form a cartridge which may be adapted to swivel along its main axis. The cartridge may further include a smart chip. The smart chip may retain and store information regarding the assembly and preferably retains hours of use of the excimer bulb.

Abstract: An excimer bulb assembly including a krypton/chlorine excimer bulb and a pass filter. The excimer bulb assembly does not emit substantial UV C radiation in wavelengths longer than deadly 240 nm through UV C wavelengths. The pass filter is adapted to block substantial UV C radiation in wavelengths in the range of 240 nm-280 nm. The assembly may include a captured reflector, a smart chip, and/or a heat sink. The bulb and its electrical connectors may form a cartridge. The assembly may include a housing and the cartridge may swivel in the housing.

Abstract: An excimer bulb assembly, with an excimer bulb, at least one integral captured reflector, and an integral filter such that the excimer bulb only emits substantial UV radiation between 200 nm and 230 nm, using a filter that passes light from about 200 nm to 234 nm (+/?2 nm).

Abstract: An excimer bulb assembly including an excimer bulb and a pass filter such that the excimer bulb assembly does not emit substantial UV radiation in wavelengths longer than 231 nm, 232 nm, 233 nm, 234 nm or 235 nm. The wavelengths are measured at an incident angle of zero (0) degrees to the filter plane. The pass filter is preferably constructed of a plurality of layers of hafnium oxide, and most preferably constructed of less than seventy five (75) layers of hafnium oxide. The excimer bulb, pass filter, and two electrical connectors may be adapted to form a cartridge which may be adapted to swivel along its main axis. The cartridge may further include a smart chip. The smart chip may retain and store information regarding the assembly and preferably retains hours of use of the excimer bulb.

Abstract: A meter for measuring UV light having wavelengths, preferably between 205 nm and 237 nm. The meter includes at least one UV sensitive photo diode adapted for detecting the wavelengths of UV light between a lower end and an upper end; a first filter that blocks the UV light having wavelengths below 237 nm down to at least the lower end that the UV sensitive photo diode can detect; a second filter that blocks the UV light having wavelengths above 230 nm up to at least 205 nm; at least one amplifier for amplifying a signal from the UV sensitive photo diode; an analog to digital converter; a microprocessor; a battery in electrical communication with the microprocessor. The microprocessor preferably being in communication with the amplifier and the analog to digital converter. The microprocessor provides a result for the UV light that the UV sensitive photo diode is exposed to.