A UV irradiation apparatus for coating systems that coat rigid or film-like workpieces, in particular furniture parts, having a transport apparatus for transporting workpieces provided with coating material from an inlet to an outlet through the UV irradiation apparatus, a UV light source arranged above the transport apparatus that irradiates the coated workpieces with UV light in an irradiation region between the inlet and the outlet, and a reflector or cover which shields the UV light source upward. A housing covers the irradiation region and the UV light source, which generally extends above the transport apparatus. A sensor of a measuring apparatus for direct or indirect automated measurement of radiant flux of the UV light source is arranged in the housing, and the sensor is in particular fitted fixed or movably on the housing or a holder. A method for quality assurance using this UV irradiation apparatus is also provided.

A luminaire includes an elongated housing having a long axis, a plurality of light emitters extending in a direction of the long axis, a first light shield rotatably coupled to a base of the luminaire and configured to rotate about a first axis parallel to the long axis, and a second light shield rotatably coupled to the base of the luminaire and configured to rotate about a second axis parallel to the long axis. The first light shield and the second light shield are configured to physically couple to form a combined light shield that is configured to block light emitted by the plurality of light emitters.

A light fixture has an elongated track comprising an upper channel comprising a first wall having a first slot and a second wall having a second slot. The assembly has a support assembly comprising a base and a swivel arm rotatably attached to the base at a swivel. The base comprising a first flange received in the first slot and a second flange received in the second slot, said base extending across the upper channel. The swivel arm has a first end and a second end. The swivel is disposed at the first end and a cable connector is disposed at a second end of the swivel arm. The cable connector receives a cable therein.

Various embodiments of electric lighting devices having projection screens are described. Some embodiments include a projection screen having a laminate structure, while other embodiments include a video screen that is embedded within the projection screen.

Electric lighting devices are described that utilize three or more light sources to generate a flickering flame effect. The light sources can emit light at different colors to more closely simulate the look of a flame. A projection system having a matrix of LEDs could be used to project an image of a flame on to a projection surface without the need or cost associated with a traditional or pico projector.

Electric lighting devices are described that utilize three or more light sources to generate a flickering flame effect. The light sources can emit light at different colors to more closely simulate the look of a flame. A projection system having a matrix of LEDs could be used to project an image of a flame on to a projection surface without the need or cost associated with a traditional or pico projector.

Various embodiments of electric lighting devices, and especially electric candles, are described. The devices include a projection screen onto which light can be emitted. Advantageously, the projection screen can move with respect to the device's housing to thereby create a flickering flame effect. The device can include one or more magnets disposed outside of the housing that can interact with an electromagnetic field generated by the device to thereby move the projection screen.

Various embodiments of electric lighting devices, and especially electric candles, are described. The devices include a projection screen onto which light can be emitted. Advantageously, the projection screen can move with respect to the device's housing to thereby create a flickering flame effect. The device can include one or more magnets disposed outside of the housing that can interact with an electromagnetic field generated by the device to thereby move the projection screen.

Various embodiments of electric lighting devices, and especially electric candles, are described. The devices include a projection screen onto which light can be emitted. Advantageously, the projection screen can move with respect to the device's housing to thereby create a flickering flame effect. The device can include one or more magnets disposed outside of the housing that can interact with an electromagnetic field generated by the device to thereby move the projection screen.

Various embodiments of electric lighting devices, and especially electric candles, are described. The devices include a projection screen onto which light can be emitted. Advantageously, the projection screen can move with respect to the device's housing to thereby create a flickering flame effect. The device can include one or more magnets disposed outside of the housing that can interact with an electromagnetic field generated by the device to thereby move the projection screen.