A Shabbat bulb and a related method allows control of illumination without electrical intervention by a person observing strictures of Shabbat orthodox Jewish law. The bulb includes a blackout mechanism with shutter disc having at least one disc aperture for transmission of light and gear teeth; and an arm projecting radially outward from the shutter disc fitted with drive gear teeth. Manual rotation of the arm engages drive gear teeth with shutter disc gear teeth moving the disc apertures from an open to a closed position respectively allowing full or totally no illumination to exit the bulb.

A dimming device comprises a light source, a support having a light path corresponding to the light source, a light diffuser, and light shielding blades having notches. The blades and the diffuser are movably disposed on the support. The blades and the diffuser are actuated by independent actuators. The notches move into and out of the light path with the movements of the blades, and the diffuser covers a portion of notches that is within the light path when moving into and out of the light path. The diffuser's movement relative to the light path is not limited to that of the blades, so the diffuser can be precisely controlled to move into a specific position within the light path with an optimal trajectory and at an optimal time point. The diffuser is integrally formed without slots, ensuring diffusion of all light passing through the covered portion of the notches.

Described are an improved automated luminaire 12 and luminaire systems 10 employing an improved output Fresnel lens 46 with an optically planar surface 34 combined with an articulable stippling plate 47. The stippling plate 47 may be inserted and removed immediately behind and adjacent to the planar rear surface of the lens 46 in order to transform the optical system from beam optics to wash optics or immediately adjacent to another articulable lens system 29 directly the light beam toward the previously described Fresnel lens. Further embodiment may include an articulable beam spreader.

According to at least one aspect, a lighting system is provided. The lighting system comprises a strip lighting device including a circuit board, a light emitting diode (LED) mounted to the circuit board, a lens disposed over the LED and configured to receive the light emitted from the LED and change at least one characteristic of the light received from the LED, and an elastomer encapsulating at least part of the circuit board. The lighting system further comprises a fixture configured to receive the strip lighting device and mount to a structure and a lighting accessory configured to removably couple to the fixture over the strip lighting device and change at least one characteristic of the light from the strip lighting device.

Light fixtures (100, 200, 400, 500, 600, 700) are provided, including a lighting element (10, 20, 40, 50, 60, 70), an oriented crosslinked semi-crystalline polymer (12, 22, 42, 52, 62, 72) disposed adjacent to or connected to the lighting element, and a control mechanism (14, 24, 44, 64, 74). The control mechanism is in electrical communication with the lighting element (10, 20, 40, 50, 60, 70) and controls an energy output of the lighting element and a temperature of the oriented crosslinked semi-crystalline polymer (12, 22, 42, 52, 62, 72). Typically, when the control mechanism changes the temperature of the oriented crosslinked semi-crystalline polymer, the shape of the polymer changes. A method of making a light fixture (100, 200, 400, 500, 600, 700) is also provided. The method includes providing a lighting element (10, 20, 40, 50, 60, 70), forming a crosslinked semi-crystalline polymer (12, 22, 42, 52, 62, 72), and disposing the crosslinked semi-crystalline polymer adjacent to the lighting element (10, 20, 40, 50, 60, 70) or connecting the crosslinked semi-crystalline polymer to the lighting element. The method further includes electrically connecting a control mechanism (14, 24, 44, 64, 74) with the lighting element.

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 lighting device includes a baffle extending about an optical axis to surround a light source, and a reflector module connected to the baffle. The reflector module includes a main reflector having a light exit opening from which a light output of the lighting device is projected towards a target area, the optical axis passing through the opening, and reflective surfaces adjacent to the opening for reflecting light incident thereon away from the opening. The reflector module further includes auxiliary reflectors for adjusting the shape of the light output of the lighting device. Each auxiliary reflector has a reflective surface, and is moveable relative to the main reflector between a stowed position and a deployed position in which at least part of the reflective surface of the auxiliary reflector is exposed, by the opening of the main reflector, to reflect light incident thereon away from the target area.

A lighting device includes a baffle extending about an optical axis to surround a light source, and a reflector module connected to the baffle. The reflector module includes a main reflector having a light exit opening from which a light output of the lighting device is projected towards a target area, the optical axis passing through the opening, and reflective surfaces adjacent to the opening for reflecting light incident thereon away from the opening. The reflector module further includes auxiliary reflectors for adjusting the shape of the light output of the lighting device. Each auxiliary reflector has a reflective surface, and is moveable relative to the main reflector between a stowed position and a deployed position in which at least part of the reflective surface of the auxiliary reflector is exposed, by the opening of the main reflector, to reflect light incident thereon away from the target area.

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 plurality of framing blades; and a multiparameter theater light including a light source; and an optical component. Each of the plurality of framing blades configured to be placed in a path of the light source so that at least one surface of each of the plurality of framing blades reflects light rays from the light source. At least one surface of each of the plurality of framing blades may include a plurality of peaks and a plurality of troughs, alternating between a peak and a trough, and the distance between adjacent peaks varies; and wherein light rays incident on the at least one surface with the same angle of incidence with respect to a straight line defining a length of each of the plurality of framing blades, have a different angle of reflection with respect to the straight line, depending on where the light rays are incident on.