Far UV-C light device
A Far UV-C light device has a Far UV-C lamp located within a housing emitting a Far UV-C light having a wavelength of 222+/−1 nm for destroying pathogens. A handle connected with a body to a housing allows the Far UV-C device to be hand held and moved to a selected location. The handle is attached to a battery that provides electric energy that excites the Far UV-C lamp to emit Far UV-C light.
1. A UV-C light device comprising:
a tubular upright handle having a first end and a second end opposite the first end,
a body joined to the first end of the handle, said body having an end,
a housing having a top wall, a back wall and a front wall surrounding an interior chamber, said front wall having an opening to the external environment,
at least one fastener attaching the body to the back wall of the housing,
a UV-C lamp located in the interior chamber of the housing operable to emit UV-C light having a wavelength of 222+/−1 nm toward the opening of the housing,
supports holding the UV-C lamp on the back wall of the housing,
a UV-C light reflector located in the interior chamber of the housing between the back wall of the housing and the UV-C lamp for reflecting UV-C light toward the opening in the housing,
a d.c. battery,
a holder on the second end of the handle for releasably attaching the battery to the second end of the handle, and
an electric circuit located in the handle and the body operatively connected to the d.c. battery and the UV-C lamp for supplying electric energy from the d.c. battery to the UV-C lamp whereby the UV-C lamp emits UV-C light having a wavelength of 222+/−1 nm toward the opening of the housing.
2. The UV-C light device of claim 1 wherein:
the UV-C lamp comprises an ultraviolet transparent glass tube with an interior chamber and an exterior surface,
a chemically inactive gas confined to the interior chamber of the tube,
a first electrode located in the interior chamber of the tube,
a second electrode located on the exterior surface of the tube, and
said electric circuit connected to the first electrode and the second electrode providing electric energy to the first electrode for exciting the gas confined in the interior chamber of the tube to emit UV-C light having a wavelength of 222+/−1 nm.
3. The UV-C light device of claim 2 wherein:
the gas confined to the interior chamber of the tube is a mixture of krypton and chlorine gas.
4. The UV-C light device of claim 2 wherein:
the second electrode is applied to the exterior surface of the tube by a plasma spraying process.
5. The UV-C light device of claim 1 including:
an ultraviolet transparent window located over the opening of the housing, and
fasteners securing the window to the housing.
6. The UV-C light device of claim 5 including:
a plurality of apertures in the window allowing air to flow through the interior chamber of the housing.