Abstract: A luminaire comprising a heat spreader and a heat sink disposed around and thermally communicates with the heat spreader. The heat sink forms a trim plate configured to be disposed completely external of a can light fixture or an electrical junction box. The luminaire also includes an optic securely retained relative to one of the heat spreader and the heat sink on one side of a plane defined by a lower surface of the trim plate and extends to the other side of the plane defined by the lower surface of the trim plate, as well as a light source disposed on the heat spreader and comprising a plurality of light-emitting diodes (LEDs). The plurality of LEDs are positioned entirely on one side of the plane defined by the lower surface of the trim plate. The light source is in thermal communication with the heat spreader.

Abstract: Disclosed are adjustable LED grow light fixtures and lights that have low profiles and are configurable for different plant grow environments. Also disclosed are LED grow light fixtures that are fully assembled and collapsible to a compact configuration for efficient packaging and shipping. Embodiments include low profile and highly efficient LED lighting fixtures that are light, easily installed and are configurable to a variety of light distribution patterns.

Abstract: A luminaire comprising a heat spreader and a heat sink disposed around and thermally communicates with the heat spreader. The heat sink forms a trim plate configured to be disposed completely external of a can light fixture or an electrical junction box. The luminaire also includes an optic securely retained relative to one of the heat spreader and the heat sink on one side of a plane defined by a lower surface of the trim plate and extends to the other side of the plane defined by the lower surface of the trim plate, as well as a light source disposed on the heat spreader and comprising a plurality of light-emitting diodes (LEDs). The plurality of LEDs are positioned entirely on one side of the plane defined by the lower surface of the trim plate. The light source is in thermal communication with the heat spreader.

Abstract: A luminaire comprising a housing formed of thermally conductive polymer with an optic carried thereby, a trim carried by the optic, and a light source. The light source may comprise an LED board comprising a copper layer and a plurality of light emitting diodes (LEDs) disposed on the LED board. The luminaire may also comprise control circuitry operably coupled to the plurality of LEDs, wherein the LED board is positioned in thermal communication with the housing. The luminaire may further comprise a mounting member configured to be attached to each of the housing and an external structure. The control circuitry may be configured to operate the plurality of LEDs such that heat generated by the plurality of LEDs is dissipated by the copper layer of the LED board.

Abstract: A luminaire for directional emission of light comprising an optic defining an optical chamber, a first plurality of light elements positioned to emit light in a first direction, defined as an upward direction, a second plurality of light elements positioned to emit light in a second direction, defined as a downward direction, and a driver circuit operably coupled to each of the first and second pluralities of light elements. The driver circuit is adapted to receive an input and is configured to operate the first and second pluralities of light elements so as to cause the luminaire to emit light in a downward distribution responsive to the input having a first configuration. Additionally, the driver circuit is configured to operate the first and second pluralities of light elements so as to cause the luminaire to emit light in an omnidirectional distribution responsive to the input having a second configuration.

Abstract: Embodiments of the invention relate generally to systems and methods for improving efficiency and yield in plant grow operations including improvements in LED grow lighting fixtures, components and systems, and their applications to plant grow operations. Improvements for directional control and efficiency in lighting and methods and systems used in plant grow applications and operations including temperature regulation and control, soil and grow media regulation and vertical farming are also disclosed.

Abstract: A luminaire comprising a base, an optic attached to the base, a heat sink integrally molded within the base, and a heat-generating element comprising a light source in thermal communication with the heat sink. The light source may be positioned such that light is emitted thereby into an optical chamber defined by the first housing. A second housing may comprise channels formed by opposing pairs of fin guards. The heat sink may comprise fin assemblies connected along a perimeter of a heat-generating element contacting portion of the heat sink. An enclosable region may be formed between fin guards that has a knurled portion on an outer surface thereof. A proximal edge of each fin assembly may be positioned adjacent to an outer surface of the first housing, and a distal edge thereof may be positioned coextensive with a respective channel and substantially exposed to the environment external to the luminaire.

Abstract: A luminaire comprising a housing formed of thermally conductive polymer with an optic carried thereby, a trim carried by the optic, and a light source. The light source may comprise an LED board comprising a copper layer and a plurality of light emitting diodes (LEDs) disposed on the LED board. The luminaire may also comprise control circuitry operably coupled to the plurality of LEDs, wherein the LED board is positioned in thermal communication with the housing. The luminaire may further comprise a mounting member configured to be attached to each of the housing and an external structure. The control circuitry may be configured to operate the plurality of LEDs such that heat generated by the plurality of LEDs is dissipated by the copper layer of the LED board.

Abstract: A single-aperture, multi-axial transceiver is provided that is particularly useful in a LIDAR system for detecting low velocities at increased ranges. The system is particularly useful in systems that measure very low velocities and very short distances as well as to provide an operating range of hundreds of meters. The transceiver uses closely spaced waveguides placed near the focal point of a single objective to form input and detector apertures.

Abstract: A single-aperture, multi-axial transceiver is provided that is particularly useful in a LIDAR system for detecting low velocities at increased ranges. The system is particularly useful in systems that are required to measure very low velocities and very short distances as well as to provide an operating range of hundreds of meters. The transceiver uses closely spaced waveguides placed near the focal point of a single objective 8 to form input and detector apertures. Preferably the input and detector apertures are spaced from each other by less than about 80 ?m. In an embodiment using light with a wavelength of 1550 nm, the spacing is preferably about 30 ?m.

Abstract: A single-aperture, multi-axial transceiver is provided that is particularly useful in a LIDAR system for detecting low velocities at increased ranges. The system is particularly useful in systems that are required to measure very low velocities and very short distances as well as to provide an operating range of hundreds of meters. The transceiver uses closely spaced waveguides placed near the focal point of a single objective 8 to form input and detector apertures. Preferably the input and detector apertures are spaced from each other by less than about 80 ?m. In an embodiment using light with a wavelength of 1550 nm, the spacing is preferably about 30 ?m.