Abstract: An apparatus for artificial weathering or lightfastness testing of samples or for simulating solar radiation, the apparatus comprising a weathering chamber, a UV light source provided in the weathering chamber, and a fluorescent material arranged to be radiated by a UV radiation emitted by the UV light source, the fluorescent material being configured to emit a fluorescent radiation comprising spectral emission characteristics similar to natural solar radiation.

Abstract: An apparatus for artificial weathering or lightfastness testing of samples comprises a weathering chamber, a first light source provided in the weathering chamber, the first light source comprising one or more fluorescent UV lamps each comprising an emission spectrum with a maximum wavelength below a predetermined wavelength, and a second light source provided in the weathering chamber, the second light source comprising one or more light emitting diodes each comprising an emission spectrum with a maximum wavelength above the predetermined wavelength.

Abstract: An apparatus for artificial weathering or lightfastness testing of samples or for simulating solar radiation, the apparatus comprises a weathering chamber, an electrodeless lamp provided in the weathering chamber and comprising a bulb filled with a composition that emits light when in a plasma state, and a radio frequency source being arranged so that it radiate a radio frequency field into the bulb to generate a luminous plasma for emitting a radiation comprising spectral emission characteristics similar to natural solar radiation.

Abstract: The illumination device comprises a plurality of illumination units (21), each illumination unit (21) comprising a light source (21.1) for emitting a radiation beam (21.1A) and at least one laser beam source (21.2) for emitting at least one laser beam (21.2A), and a plurality of actuator means (22), wherein each actuator means (22) is connected to an illumination unit (21) and is adapted to change an orientation of the illumination unit (21) based on a detected beam direction of the laser beam (21.2A).

Abstract: The sensor device (100; 200) for a device (10) for weathering or lightfastness testing of samples comprises a sensor housing (110) which is adapted to be arranged in a weathering chamber (1) of the device (10) in the same manner as a sample (3), and an air mass sensor (120; 220) which comprises a sensor element (120.2; 220.2) and is attached to the sensor housing (110) in such a manner that the sensor element (120.2; 220.2) is adapted to be mounted on the sensor housing (110.2; 220.2) and attached to the sensor housing (110) such that the sensor element (120.2; 220.2) is exposed in the same manner as a sample (3) to an air flow prevailing in the weathering chamber (1).

Abstract: A lighting device (21), comprising a light source (21.1); a power controller (21.2; 21.20) configured to control the supply of electrical power to the light source (21.1) such that upon receipt of a start signal, the supplied electrical power is increased from a first value to a second value, the first value being different from zero and the second value being greater than the first value; and an input (21.4) for supplying the start signal.

Abstract: An irradiance adjustment device comprising a radiation source and at least one neutral density filter disposed adjacent to the radiation source, wherein the neutral density filter can be moved into or out of the beam path of the radiation source.

Abstract: The sensor device (100) has a sensor housing (110), to which at least two sensors from a group consisting of a black standard sensor (120), a UV radiation sensor (130), an air temperature sensor and a humidity sensor are connected.

Abstract: The apparatus has a weathering chamber, in which at least one sample can be arranged, and at least one radiation source, which are arranged in the weathering chamber, wherein the radiation source is provided with a storage device, on which data relating to the radiation source are stored.

Abstract: The apparatus for artificially weathering or testing the lightfastness of samples has a weathering chamber, in which at least one sample can be arranged, and a plurality of radiation sources, which are arranged in the weathering chamber and which are operable independently of one another, wherein the apparatus is configured in such a way that the at least one sample is movable on a closed path around the plurality of radiation sources.

Abstract: The sensor device (100) has a sensor housing (110), to which at least two sensors from a group consisting of a black standard sensor (120), a UV radiation sensor (130), an air temperature sensor and a humidity sensor are connected.

Abstract: The apparatus has a weathering chamber, in which at least one sample can be arranged, and at least one radiation source, which are arranged in the weathering chamber, wherein the radiation source is provided with a storage device, on which data relating to the radiation source are stored.

Abstract: The apparatus for artificially weathering or testing the lightfastness of samples has a weathering chamber, in which at least one sample can be arranged, and a plurality of radiation sources, which are arranged in the weathering chamber and which are operable independently of one another, wherein the apparatus is configured in such a way that the at least one sample is movable on a closed path around the plurality of radiation sources.

Abstract: In a weathering chamber, a UV radiation device is arranged and at least one sample can be arranged in a sample plane spaced apart from the UV radiation device. The UV radiation device has a plurality of UV light emitting diodes (UV LEDs) containing two or more classes of UV LEDs having different emission bands. The emission bands are chosen in such a way that a spectral distribution with which a specific spectral UV characteristic is approximated can be obtained in the sample plane.

Abstract: A UV light emitting diode (UV-LED) is arranged in a weathering chamber and a UV light receiving diode, which is constructed on the same material basis as the UV LED, is arranged relative to the UV LED in such a way that a portion of the radiation emitted by the UV LED impinges on the UV light receiving diode during the operation of the device.

Abstract: In a weathering chamber, a UV radiation device is arranged and at least one sample can be arranged in a sample plane spaced apart from the UV radiation device. The UV radiation device has a plurality of UV light emitting diodes (UV LEDs) containing two or more classes of UV LEDs having different emission bands. The emission bands are chosen in such a way that a spectral distribution with which a specific spectral UV characteristic is approximated can be obtained in the sample plane.

Abstract: A UV light emitting diode (UV-LED) is arranged in a weathering chamber and a UV light receiving diode, which is constructed on the same material basis as the UV LED, is arranged relative to the UV LED in such a way that a portion of the radiation emitted by the UV LED impinges on the UV light receiving diode during the operation of the device.

Abstract: A device for draining off liquid droplets from a temperature sensor, said device comprising a fixture for mounting a temperature sensor, a ledge arranged relative to the edge portion of the temperature sensor mountable in said fixture such that any liquid droplets at the edge portion are drawn into the interspace between the ledge and the edge portion.

Abstract: The radiation power emitted from the UV radiation sources (2) in a weathering apparatus is controlled such that the radiation power of each of the radiation sources (2) is measured in a predetermined spectral range of the radiation emitted from the radiation sources, with the spectral range being chosen such that the measured radiation power is representative of the radiation power in the UV, an averaged radiation power is calculated from the measured radiation powers, and the averaged radiation power is used for controlling the electrical power to be supplied to the radiation sources (2). In particular, the control process can be carried out in such a way that the same electrical power, within a predetermined tolerance bandwidth, is supplied to each of the radiation sources (2), and the averaged radiation power is kept constant over time at a desired nominal value.

Abstract: A plug-in radiation source module (10) for mounting and locating a radiation source (3) for a weathering apparatus (20), the plug-in module (10) being configured to be insertable from without into a cavity (21) provided therefor in a weathering apparatus (20).