The invention relates to a nebulizer system for a motor vehicle, including at least one reservoir for storing a liquid, a nebulizer component including an acoustic wave emission device configured such that the liquid forms a mist of droplets of the liquid, the mist being intended to enter a passenger compartment of the motor vehicle, a light-emitting device configured to emit radiation in the ultraviolet spectrum, and a conduit for delivering the liquid to at least one inlet of the nebulizer component. The light-emitting device is oriented in the nebulizer system so as to irradiate the liquid circulating in the conduit for delivering the liquid, when the nebulizer system is in the operating state.

An ultraviolet sterilization device includes a liquid passing pipe assembly and an ultraviolet light source. The liquid passing pipe assembly includes a shell and a transparent hollow pipe, the shell is sleeved on the hollow pipe, the shell is provided with an accommodating groove. The ultraviolet light source is provided in the accommodating groove. An end of the hollow pipe is configured as a liquid inlet end, and another end thereof is configured as a liquid outlet end, and the hollow pipe is used for circulating liquid. The wall surface of the hollow pipe is covered with a reflective film, the reflective film is provided with first light transmitting holes at the position corresponding to the ultraviolet light source. The first light transmitting hole is communicated with the accommodating groove, and the reflective film is used for scattering the ultraviolet light in different areas in the hollow pipe.

A sterilizing device includes a pipe having an inlet and an outlet and allowing fluid to move therethrough and a light source provided on one side of the pipe and providing light to the fluid. At least a portion of the pipe is provided in a spiral shape and the inlet and/or the outlet are arranged in a light emitting region.

An apparatus and method for irradiating a fluid containing a material to be irradiated, comprising at least one irradiation chamber having at least one inlet port, one or more UV radiation sources inside the irradiation chamber(s) optically coupled to the fluid in the irradiation chamber(s) via at least one UV-transparent window in contact with the fluid; one or more seals or gaskets disposed adjacent to the radiation sources to protect them from the fluid; and at least one heat exchange mechanism inside the irradiation chamber(s) thermally coupled to the radiation sources and to the fluid. The UV radiation sources and the at least one heat exchange mechanism are at least partially submerged in the fluid in the irradiation chamber.

A method of monitoring light output from at least one solid-state light source involves sensing any light produced by the at least one solid-state light source and reflected, by at least one surface spaced apart from the at least one solid-state light source, to at least one reference location spaced apart from the at least one surface. Apparatuses and uses of the apparatuses are also disclosed.

An apparatus and method for irradiating a fluid containing a material to be irradiated, comprising at least one irradiation chamber having at least one inlet port and outlet port, at least one fluid cooling chamber having at least one inlet port and outlet port, one or more UV radiation sources coupled to the irradiation chamber(s); and at least one heat exchange mechanism thermally coupled to the radiation source(s) and the cooling chamber(s). At least a portion of the interior surface of the cooling chamber(s) may comprise at least a portion of the exterior surface of the irradiation chamber(s) so the cooling chamber(s) is in fluid communication with the irradiation chamber(s).

A water treatment system having a base assembly and a treatment assembly. The treatment assembly of the system may be configured to filter particulates from water. The base assembly may include a UV reactor operable to disinfect water for consumption.

The invention relates to a nebulizer system for a motor vehicle, including at least one tank for storing a liquid, a nebulizer chamber, the nebulizer chamber having a nebulizer component provided with an acoustic wave emission device which is configured such that the liquid forms a mist of droplets of the liquid, the mist being intended to enter a passenger compartment of the motor vehicle, a light-emitting device configured to emit radiation in the ultraviolet spectrum, and a carrier of the light-emitting device, the at least one tank for storing the liquid being configured such that the carrier of the light-emitting device crosses the tank.

Described are light generating devices employing ultraviolet (UV) light emitting diodes and one or more UV active materials, such as UV reflective materials, UV scattering materials, and UV transparent materials. A UV light generation system, may include a plurality of UV light emitting diodes arranged across a surface having a diffuse UV reflective layer. The UV light generation system may be arranged to enclose a fluid pathway or may be arranged as a liner of a container or vessel for use in disinfecting, purifying, or sterilizing fluid, particles or objects in the fluid pathway, container, or vessel by exposure of the fluid, particles or objects to UV light generated by the UV light emitting diodes.

A biofilm inhibition system, for a sensor which includes a chamber with an interior volume and an interior surface exposed to direct contact with a fluid during sensor operation, includes an ultraviolet light emitting diode (UV-LED) and an optical subsystem. The optical subsystem is coupled to the UV-LED to deliver a portion of the emitted UV light to illuminate a substantial fraction of the interior volume and the interior surface. A watertight housing encloses the UV-LED and at least a portion of the optical subsystem.