Abstract: An LED luminaire for a track lighting system, that takes the form of a track section rather than a more customary separate device attached to a track section. The new luminaire has an elongated, extruded housing configured to correspond to the exterior of standard track sections to visually blend in with the overall track system. A circuit board, mounting a plurality of longitudinally aligned LED elements, extends for the full length of the housing, providing downward illumination through an optic member closing the bottom of the housing. The LED housing has a plug-in type connection to an adjacent track section providing physical alignment, electrical power and data functions. Successive luminaires can be connected together, and the new luminaires can be connected to additional standard track sections. The new luminaires can be installed throughout an overall track lighting system, substantially without limitation as to number and/or order.

Abstract: An LED luminaire for a track lighting system, that takes the form of a track section rather than a more customary separate device attached to a track section. The new luminaire has an elongated, extruded housing configured to correspond to the exterior of standard track sections to visually blend in with the overall track system. A circuit board, mounting a plurality of longitudinally aligned LED elements, extends for the full length of the housing, providing downward illumination through an optic member closing the bottom of the housing. The LED housing has a plug-in type connection to an adjacent track section providing physical alignment, electrical power and data functions. Successive luminaires can be connected together, and the new luminaires can be connected to additional standard track sections. The new luminaires can be installed throughout an overall track lighting system, substantially without limitation as to number and/or order.

Abstract: An articulating accessory cartridge for use in theatrical and commercial lighting fixtures in which optical accessories are utilized. The cartridge includes an outer member removably insertable in the fixture and an inner member telescopically retained in the outer member. One or several optical accessories can be removably received and retained in the inner member in an axial stack, depending upon effects desired. The inner cartridge member is telescopically extended before the cartridge is mounted on the fixture. As the cartridge is inserted, the uppermost accessory engages the end of a reflector associated with a light source in the fixture. Continued insertion of the cartridge results in telescopic retraction of the inner cartridge member, depending upon the number of accessories in the stack, until the outer cartridge member is fully seated. The accessories are held against the end of the reflector for optimal efficiency of the lighting and lighting effects.

Abstract: A narrow angle LED illuminated spotlight in which the light-emitting output of an LED light source is coupled with an optic element, in the form of a focusing reflector or focusing lens, and a masking element is interposed between the light source and the optic element to partially mask off the output area of the light source and significantly reduce the area of the emitted light reaching the optic element. This enables the light passed by the masking element to be concentrated into a, narrow beam (i.e., 18° or less) using an optic element of much smaller size than otherwise, thus making the use of an LED light source module a practical source of light for narrow beam spotlights.

Abstract: An adjustable track lighting fixture of a type having rotary locking lever for securing the fixture to a bus bar, where the locking lever is economically formed with an internal confinement facility of removably housing an Allen key to be retained with the fixture and used for locking the adjustments of the fixture when desired. A spring, also housed internally of the locking lever, resiliently but releasably retains the Allen key until purposefully withdrawn by a workman. The key is returned to its confinement after the workman has finished using it for the purposes intended. The key is retained in an inconspicuous manner but nevertheless visible to the workman and readily extracted for use when desired.

Abstract: An electrical busway system comprising a busway uniquely configured for cutting to length in the field. Special connector devices are also disclosed, with features for engaging and immobilizing busway insulators to assure accurate initial alignment of conductors and contact elements prior to joining of connector devices with busway sections. An accessory device, specially adapted to the new busway design, includes a rotatable contact element, slideably received in its rotatable support, which progressively displaces a spring as the contact element is rotated into contact with a busbar carried by a busway insulator. Good electrical contact at both ends of the slideable contact element is assured.

Abstract: A specialized lighting fixture, such as a framing projector provided with a plurality of adjustable framing shutters, is modified to incorporate a pair of locking rings, surrounding the body of the lighting fixture and positioned on opposite sides of outwardly projecting portions of the framing shutters. After initial adjustment of the framing shutters has been completed, the locking rings are tightly compressed together, as by locking screws positioned between adjacent pairs of framing shutters, to lock the shutters in position against unintended dislodgment. For lighting fixtures of non-uniform shape, the locking rings may be made in two parts, preferably hinged together, which are secured together after being positioned on the housing of the lighting fixture. The locking rings are particularly adapted for retrofit installation on lighting fixtures of existing design.

Abstract: A lighting apparatus comprises a light panel having a panel frame, and a plurality of LEDs or other light elements secured to the panel frame. A self-contained battery unit securably attaches to the outside of the panel frame. The light panel may have a dimmer switch, and may also be capable of receiving power from a source other than the self-contained battery unit. The lighting apparatus can be mounted to a camera or a stand through adapters. Diffusion lenses or color gels can be integrated with or detachable from the light panel. The lighting apparatus may conveniently be provided in the form of a kit, with one or more of a light panel, self-contained battery unit, compact stand, connecting cable(s), adapter(s), lenses or color gels, and so on, provided in a single package.

Abstract: A lighting apparatus comprises a light panel having a panel frame, and a plurality of LEDs or other light elements secured to the panel frame. A self-contained battery unit securably attaches to the outside of the panel frame. The light panel may have a dimmer switch, and may also be capable of receiving power from a source other than the self-contained battery unit. The lighting apparatus can be mounted to a camera or a stand through adapters. Diffusion lenses or color gels can be integrated with or detachable from the light panel. The lighting apparatus may conveniently be provided in the form of a kit, with one or more of a light panel, self-contained battery unit, compact stand, connecting cable(s), adapter(s), lenses or color gels, and so on, provided in a single package.

Abstract: An adjustable spotlight fitting for use with an illuminated fiber optic bundle. A spherically contoured pivot element is received within a pivot housing and retained therein by an adjustable locking ring which clamps the pivot element in any angularly adjusted position. A focusing member is mounted by the pivot element for limited axial adjusting movement in relation thereto. A fiber optic bundle is inserted through the back of the pivot element and the exposed optical fibers at its terminal end are positioned within the focusing member. A lens, carried at the outer end of the focusing member, is movable by the focusing member toward and away from the fiber optic bundle for converging and expanding the area of illumination. Optical filters can be selectively installed behind the lens for various lighting effects.

Abstract: A lighting effects system comprises an arrangement of lamp elements, such as light-emitting diodes (LEDs) or other light elements, on a panel or frame. The panel or frame may be relatively lightweight, and may include one or more circuit boards for direct mounting of the lamp elements. The panel or frame may have an opening through which a camera can view. A mounting bracket and assembly may be used for attaching the panel or frame to a camera. The lamp elements may be electronically controllable so as to provide differing intensity levels, collectively, individually, or in designated groups, and may be strobed, dimmed or otherwise controlled according to manually selected or programmable patterns. Different color lamp elements may be mounted on the same panel/frame, and, in particular, daylight and tungsten colored lamp elements may be mounted on the same panel/frame and their relative intensities selectively controlled by control circuitry.

Abstract: An accessory cartridge for removable reception in a specialized lighting fixture. A circular cartridge ring is provided with an internal lower flange, for supporting one or more flat, circular, disc-like accessory elements, such as filters. Retainer clips are positioned to engage at least the uppermost one of the disc-like accessory elements, such that one or more of the disc-like accessory elements may be easily installed within the cartridge ring and the entire series thereof automatically retained therein by engagement of at least the uppermost accessory element. The entire cartridge is designed to be bodily installed in or removed from the lighting fixture, to facilitate expeditious changing of accessory elements utilized with the lighting fixture. Preferentially, the lighting fixture is provided with a hingedly connected front barrel portion, which is constructed to receive and support the cartridge.

Abstract: A lighting effects system comprises an arrangement of lamp elements, such as light-emitting diodes (LEDs) or other light elements, on a panel or frame. The panel or frame may be relatively lightweight, and may include one or more circuit boards for direct mounting of the lamp elements. The panel or frame may have an opening through which a camera can view. A mounting bracket and assembly may be used for attaching the panel or frame to a camera. The lamp elements may be electronically controllable so as to provide differing intensity levels, collectively, individually, or in designated groups, and may be strobed, dimmed or otherwise controlled according to manually selected or programmable patterns. Different color lamp elements may be mounted on the same panel/frame, and, in particular, daylight and tungsten colored lamp elements may be mounted on the same panel/frame and their relative intensities selectively controlled by control circuitry.

Abstract: A multi-purpose plug-in lamp socket for selectively mounting and electrically connecting lamps of different types, such as PAR36 and AR111 lamps. These lamps, which are extensively used in low voltage commercial and theatrical lighting, are similar in size but have entirely different configurations of contact elements. Typically, they are mounted by seating peripheral flanges of the lamps and separately electrically connecting the contact elements using slide-on contacts and/or spade lugs or the like secured by screws. The disclosure relates to a simple, unitary lamp socket which accommodates plug-in reception and removal of either of the above mentioned styles of lamp, simultaneously mounting and electrically connecting the lamps for use. Strip-like contact elements, mounted at the back of the lamp bodies, are gripped by contact clips mounted in a socket body.

Abstract: A lighting effects system comprises an arrangement of lamp elements, such as light-emitting diodes (LEDs) or other light elements, on a panel or frame. The panel or frame may be relatively lightweight, and may include one or more circuit boards for direct mounting of the lamp elements. The panel or frame may have an opening through which a camera can view. A mounting bracket and assembly may be used for attaching the panel or frame to a camera. The lamp elements may be electronically controllable so as to provide differing intensity levels, collectively, individually, or in designated groups, and may be strobed, dimmed or otherwise controlled according to manually selected or programmable patterns. Different color lamp elements may be mounted on the same panel/frame, and, in particular, daylight and tungsten colored lamp elements may be mounted on the same panel/frame and their relative intensities selectively controlled by control circuitry.

Abstract: A system and method for providing lighting effects comprises an arrangement of low power lights mounted on a frame having an opening through which a camera can protrude. In one embodiment, light-emitting diodes (LEDs) or light-emitting crystals (LECs) are arranged on the frame in a pattern of concentric circles, with the frame being ring-shaped and having a circular opening through which a camera can protrude, and a mounting bracket and assembly for attaching the frame to a camera. The LEDs or LECs may be electronically controllable so as to provide differing intensity levels, either collectively, individually, or in designated groups, and may be strobed, dimmed or otherwise controlled according to manually selected or programmable patterns.

Abstract: A lighting effects system comprises an arrangement of lamp elements, such as light-emitting diodes (LEDs) or other light elements, on a panel or frame. The panel or frame may be relatively lightweight, and may include one or more circuit boards for direct mounting of the lamp elements. The panel or frame may have an opening through which a camera can view. A mounting bracket and assembly may be used for attaching the panel or frame to a camera. The lamp elements may be electronically controllable so as to provide differing intensity levels, collectively, individually, or in designated groups, and may be strobed, dimmed or otherwise controlled according to manually selected or programmable patterns. Different color lamp elements may be mounted on the same panel/frame, and, in particular, daylight and tungsten colored lamp elements may be mounted on the same panel/frame and their relative intensities selectively controlled by control circuitry.

Abstract: A lighting effects system comprises an arrangement of lamp elements, such as light-emitting diodes (LEDs) or other light elements, on a panel or frame. The panel or frame may be relatively lightweight, and may include one or more circuit boards for direct mounting of the lamp elements. The panel or frame may have an opening through which a camera can view. A mounting bracket and assembly may be used for attaching the panel or frame to a camera. The lamp elements may be electronically controllable so as to provide differing intensity levels, collectively, individually, or in designated groups, and may be strobed, dimmed or otherwise controlled according to manually selected or programmable patterns. Different color lamp elements may be mounted on the same panel/frame, and, in particular, daylight and tungsten colored lamp elements may be mounted on the same panel/frame and their relative intensities selectively controlled by control circuitry.

Abstract: A system and method for providing lighting effects comprises an arrangement of low power lights mounted on a frame having an opening through which a camera can protrude. In one embodiment, light-emitting diodes (LEDs) or light-emitting crystals (LECs) are arranged on the frame in a pattern of concentric circles, with the frame being ring-shaped and having a circular opening through which a camera can protrude, and a mounting bracket and assembly for attaching the frame to a camera. The LEDs or LECs may be electronically controllable so as to provide differing intensity levels, either collectively, individually, or in designated groups, and may be strobed, dimmed or otherwise controlled according to manually selected or programmable patterns.