A lighting device is presented. The lighting device includes an LED light source; and a red/far-red emitting phosphor radiationally coupled to the LED light source, wherein the red/far-red emitting phosphor comprises a host material activated with an activator ion, and wherein the activator ion comprises at least one of Sm.sup.2+ and Mn.sup.2+. Numerous other aspects are provided.

A lighting device is presented. The lighting device includes an LED light source; and a red/far-red emitting phosphor radiationally coupled to the LED light source, wherein the red/far-red emitting phosphor comprises a host material activated with an activator ion, and wherein the activator ion comprises at least one of Sm.sup.2+ and Mn.sup.2+. Numerous other aspects are provided.

The present invention relates to alkaline earth aluminate phosphors, to a process for the preparation thereof and to the use thereof as conversion phosphors. The present invention also relates to an emission-converting material comprising at least the conversion phosphor according to the invention, and to the use thereof in light sources, in particular pc-LEDs (phosphor converted light emitting devices). The present invention furthermore relates to light sources, in particular pc-LEDs, and to lighting units which comprise a primary light source and the emission-converting material according to the invention.

The present invention relates to alkaline earth aluminate phosphors, to a process for the preparation thereof and to the use thereof as conversion phosphors. The present invention also relates to an emission-converting material comprising at least the conversion phosphor according to the invention, and to the use thereof in light sources, in particular pc-LEDs (phosphor converted light emitting devices). The present invention furthermore relates to light sources, in particular pc-LEDs, and to lighting units which comprise a primary light source and the emission-converting material according to the invention.

A curing process of an ultraviolet curable paint by which a paint cured layer can be formed on an object to be processed without needing a long time, and intended color can be obtained of the object to be processed on which the paint cured layer is formed. The curing process of an ultraviolet curable paint is one for curing an ultraviolet curable paint through an ultraviolet irradiation step of irradiating a surface of an object to be processed to which the ultraviolet curable paint is applied with ultraviolet rays from an ultraviolet radiation unit. The ultraviolet curable paint is not sensitive to light of not less than 380 nm in wavelength but sensitive to light of less than 380 nm in wavelength. The ultraviolet radiation unit radiates ultraviolet rays having a peak wavelength within a range of not greater than 350 nm in wavelength.

A curing process of an ultraviolet curable paint by which a paint cured layer can be formed on an object to be processed without needing a long time, and intended color can be obtained of the object to be processed on which the paint cured layer is formed. The curing process of an ultraviolet curable paint is one for curing an ultraviolet curable paint through an ultraviolet irradiation step of irradiating a surface of an object to be processed to which the ultraviolet curable paint is applied with ultraviolet rays from an ultraviolet radiation unit. The ultraviolet curable paint is not sensitive to light of not less than 380 nm in wavelength but sensitive to light of less than 380 nm in wavelength. The ultraviolet radiation unit radiates ultraviolet rays having a peak wavelength within a range of not greater than 350 nm in wavelength.

A method for making a light emitting structure including: determine desired light emitting characteristics; prepare a plurality of nanostructure composites, wherein the plurality of nanostructure composites are configured to provide the desired light emitting characteristics and are configured with predetermined excitation characteristics; selecting a light emission source based on the predetermined excitation characteristics; providing a substrate for the plurality of nanostructure composites; and applying the plurality of nanostructure composites to the substrate such that the plurality of nanostructure composites receive light from the light emission source. A light emitting structure including: a plurality of nanostructure composites, wherein the plurality of nanostructure composites are configured to provide predetermined light emitting characteristics and are configured with predetermined excitation characteristics; and a substrate for the plurality of nanostructure composites, wherein the plurality of nanostructure composites are applied to the substrate such that the plurality of nanostructure composites receive light from a light emission source having a spectrum that includes the predetermined excitation characteristics.

A Far-UVC excimer light source contains a first electrode adapted to be energized, a second electrode adapted to be energized, a body defining a cavity that is filled with an excited molecule complex between the first and second electrodes; and a Far-UVC optical dielectric coating filter which is a Far-UVC filter attached to the interior side of the first electrode and adapted to filter a Far-UVC light excited in the cavity of the body. The Far-UVC dielectric coating is located inside the light source, between the cavity with the excited molecules and the first electrode. The Far-UVC filter attached to the interior side of the first electrode is a transmissive Far-UVC optical filtering dielectric coating or coated glass which is integrated, placed on, or near the interior side of the first electrode inside the light source.

A Far-UVC excimer light source contains a first electrode adapted to be energized, a second electrode adapted to be energized, a body defining a cavity that is filled with an excited molecule complex between the first and second electrodes; and a Far-UVC optical dielectric coating filter which is a Far-UVC filter attached to the interior side of the first electrode and adapted to filter a Far-UVC light excited in the cavity of the body. The Far-UVC dielectric coating is located inside the light source, between the cavity with the excited molecules and the first electrode. The Far-UVC filter attached to the interior side of the first electrode is a transmissive Far-UVC optical filtering dielectric coating or coated glass which is integrated, placed on, or near the interior side of the first electrode inside the light source.

The present invention generally relates to a system for treating a fluid and specifically to a treatment system configured for improved bacterial reduction, wherein the system comprises a field emission based UV light source adapted to emit light within a ultraviolet C (UVC) spectrum with a wavelength range having an upper range limit being higher compared to light emitted from a mercury based UV light source.