Ultraviolet semiconductor light source irradiation device useful for e.g. sterilization and physical excitation of molecules into higher physical excitation state, comprises ultraviolet semiconductor light source and irradiation chamber

摘要

Ultraviolet semiconductor light source-irradiation device comprises at least one ultraviolet semiconductor light source (1), and an irradiation chamber (2), by which a medium to be irradiated is conducted along a main flow direction. The primary radiation emitted by the ultraviolet semiconductor light source in the operating state passes at an angle of greater than 60[deg] to the main flow direction through the medium to be irradiated. The inner wall (3) of the irradiation chamber for the emitted radiation of the ultraviolet semiconductor light source exhibits a reflection degree of at least 95%. Ultraviolet semiconductor light source irradiation device comprises at least one ultraviolet semiconductor light source (1) and an irradiation chamber (2), by which a medium to be irradiated is conducted along a main flow direction. The primary radiation emitted by the ultraviolet semiconductor light source in the operating state passes in an average angle (alpha ) of greater than 60[deg] to the main flow direction through the medium to be irradiated. The inner wall (3) of the irradiation chamber for the emitted radiation of the ultraviolet semiconductor light source exhibits a reflection degree of at least 95%, so that the radiation emitted by the ultraviolet semiconductor light source is reflected several times within the irradiation chamber. An independent claim is also included for irradiating the medium conducted along the main flow direction with ultraviolet radiation through the irradiation chamber.