Abstract: An LED luminaire having a housing positionable at a structure location for providing illumination. At least one first LED light engine is located within the housing. The housing has at least one light output boundary and is configured to direct light therein toward the light output boundary. A light guide is configured to be located at the light output boundary to receive light contained within the housing to emit non-directional light at the light output boundary. The at least one first LED light engine includes at least one first LED light source providing directional light at the light output boundary. The first LED light engine includes a shroud adjacent the light guide providing directional light from the LED light source to a target location beyond the luminaire. The shroud structure provides an optical path from the LED light source through the light guide for providing non-directional light.

Abstract: A device for mounting a light fixture structure to a ceiling grid. The device includes an anchor structure extending from the light fixture structure, with a pair of arm structures spaced to receive a ceiling grid segment therebetween at an anchor location on the ceiling grid adjacent a lower region of the ceiling grid. The arm structures have respective distal regions configured to be accessible from an upper region of the ceiling grid and a clamp structure configured to traverse laterally relative to the distal regions to couple with the respective distal end regions and thereafter to be transferable between a released position and a locked position. When in the locked position, the ceiling grid segment held between the anchor and clamp structures place the light fixture structure in the mounted position.

Abstract: Described are various embodiments of a luminaire and output element coupling mechanism therefor. In one embodiment, a recessable luminaire comprises two or more luminaire modules, each one of which comprising a recessable housing having opposed side walls. The luminaire further comprises an output element securable along and between these side walls to at least partially define an output of the luminaire, and opposed inwardly biased output coupling structures extending at least partially along respective side walls and adapted to receive and resiliently secure corresponding edges of the output element therein.

Abstract: A kit for joining together at least a pair of light fixture segments at a joint interface therebetween to form a light fixture assembly, comprises at least a pair of complementary coupling units, each coupling unit configured to be located in an operative position in one of said light fixture segments to join the other coupling unit at the joint interface defined by complementary abutment surfaces on said light fixture segments, at least one of the complementary coupling units being configured to be adjustably located in the operative position to displace another of the coupling units along a designated travel path toward a limit position, wherein the joining of the light fixture segments at the joint interface occurs in advance of the other coupling unit reaching the limit position.

Abstract: Disclosed is a junction device for joining adjacent housing sections of a light fixture housing assembly, having a junction body structure formed from at least one junction body segment. A plurality of coupling units, each with at least one first boundary including at least one male portion or at least one female portion. The male and/or female portions are configured to enable each corresponding portion a first of the coupling units to receive the male portion of a second of the coupling units. Each of at least two of the coupling units including a first segment formed with the at least one junction body segment at respective first boundaries with the corresponding male or female portions extending therefrom. Each of the male and female portions is configured to be associated with a first locking structure to lock the female and male portions together to form the assembled light fixture housing.

Abstract: A linear light fixture assembly for supporting a light fixture in a ceiling structure, comprises a light fixture mounting structure having a pair of opposed boundary regions configured to fit within a designated light fixture receiving region in the ceiling structure, and a plurality of spring elements configured to spaced outwardly from at least one of the boundary regions, each spring element having a mounting region configured to be anchored to the mounting structure and a free end region to extend therefrom and to be laterally outwardly biased in a first position to form a path of contact with a support surface region on the ceiling structure to anchor the structure in the receiving region, each of the spring elements configured to be movable toward the corresponding boundary region in a second position to release the path of contact to release the light fixture from the receiving region.

Abstract: Disclosed is a coupling assembly for joining together a pair of light fixture segments at a joint interface therebetween to form a light fixture assembly, comprising a body rotatably mountable on a first of the light fixture segments about a central axis, the body configured to operably engage a drive tool with a drive axis thereof aligned with the central axis to rotate the body between a release position and a coupling position, the body having a designated receiving location to receive a complementary coupling element on a second of the light fixture segments, and configured to provide an arcuate pathway extending from designated receiving location, wherein the designated receiving location and pathway are configured to permit the complementary coupling element to travel along the pathway as the body rotates on the central axis, and thereby to laterally transfer the complementary coupling element radially toward the central axis to draw the first and second light fixture segment toward forming the joint in

Abstract: A light fixture for mounting in a t-bar ceiling structure, the light fixture includes a housing configured to support a ring-shaped lens to at least partially surround an inner reflective surface, the inner reflective surface being configured to at least partially reflect light incident thereon from the lens, to present a mirage effect in a transition zone near the lens.

Abstract: Disclosed is a luminaire structure, comprising at least one light guide segment having opposed surface regions and defining a dimension therebetween. At least one edge region with at least one LED array configured to form an edge-lit optical coupling with the edge region. The light guide segment further includes a first sensor passage extending between the opposed surface regions to receive a sensor. At least one of the light guide segment, the first sensor passage and/or the sensor is configured so that light delivered to the light guide segment through the edge-lit optical coupling illuminates the light guide segment with reduced optical disruption by the presence of the sensor in the first sensor passage, when compared with a non edge-lit optical coupling configuration.

Abstract: A kit for joining together at least a pair of light fixture segments at a joint interface therebetween to form a light fixture assembly, comprises at least a pair of complementary coupling units, each coupling unit configured to be located in an operative position in one of said light fixture segments to join the other coupling unit at the joint interface defined by complementary abutment surfaces on said light fixture segments, at least one of the complementary coupling units being configured to be adjustably located in the operative position to displace another of the coupling units along a designated travel path toward a limit position, wherein the joining of the light fixture segments at the joint interface occurs in advance of the other coupling unit reaching the limit position.

Abstract: A canopy for use with a ceiling connector mountable at a designated ceiling location to define a mounting end region thereon, includes a body securable to the mounting end region by a rotationally operable connector, wherein the body is configured to form a mounting interface with the mounting end region to block perceptible relative rotation therebetween about a rotation axis defined by the connector by forces associated therewith, wherein the mounting interface is defined by at least one first engagement surface on the canopy configured to be in contact with at least corresponding second engagement surface on the mounting end region.

Abstract: Disclosed is a coupling assembly for joining together a pair of light fixture segments at a joint interface therebetween to form a light fixture assembly, comprising a body rotatably mountable on a first of the light fixture segments about a central axis, the body configured to operably engage a drive tool with a drive axis thereof aligned with the central axis to rotate the body between a release position and a coupling position, the body having a designated receiving location to receive a complementary coupling element on a second of the light fixture segments, and configured to provide an arcuate pathway extending from designated receiving location, wherein the designated receiving location and pathway are configured to permit the complementary coupling element to travel along the pathway as the body rotates on the central axis, and thereby to laterally transfer the complementary coupling element radially toward the central axis to draw the first and second light fixture segment toward forming the joint in