Abstract: A cord grip has a conduit hub configured to be connected to an electronics housing. A bore is formed in the conduit hub and has a first end communicating with the electronics housing and a second end configured to be connected to a conduit. A wire seal retains electrical wiring and is located in the hub forming a liquid-tight seal between the first end and the second end. A channel for transporting liquid from the conduit has an inlet communicating with the conduit and an outlet communicating with the exterior of the electronics housing. An overmolded bond may be formed between the wire seal and the electrical wiring.

Abstract: A luminaire comprises a frame and a plurality of optical waveguides retained by the frame. The optical waveguides bound a cavity, and each comprises: a top end and a bottom end opposite the top end; a coupling portion disposed at the top end; an inner side facing the cavity; and an outer side opposite the inner side. The inner and outer sides are disposed between the top and bottom ends. The luminaire further comprises at least one light emitting diode (LED) associated with each optical waveguide. Each of the LEDs are disposed opposite, and configured to direct light into, the coupling portion of the associated optical waveguide. Each optical waveguide is configured to receive the light via the coupling portion and emit the light primarily from the outer side.

Abstract: A distributed, parallel, image capture and processing architecture provides significant advantages over prior art systems. A very large array of computational 0 in some embodiments, matching the size of the pixel array—is distributed around, within, or beneath the pixel array of an image sensor. Each computational circuit is dedicated to, and in some embodiments is physically proximal to, one, two, or more associated pixels. Each computational circuit is operative to perform computations on one, two, or more pixel values generated by its associated pixels. The computational circuits all perform the same operation(s), in parallel. In this manner, a very large number of pixel-level operations are performed in parallel, physically and electrically near the pixels.

Abstract: According to an aspect of the present disclosure, a luminaire comprises a plurality of waveguides, a light source arranged to direct light into the plurality of waveguides, and a plurality of extraction feature patterns. The luminaire contemplated by the present disclosure is arranged with the plurality of waveguides are aligned such that an extraction feature pattern extracts light out of a first waveguide of the plurality of waveguides and a second extraction feature pattern extracts light out of a second waveguide of the plurality of waveguides. Further, in accordance with this aspect, the light extracted out of the first waveguide is directed through the second waveguide to develop an appearance of depth.

Abstract: Sensor housings, modules, and luminaires comprising the same are provided. The sensor housings and modules set forth herein have improved heat sinking abilities for dissipating heat from a sensor while simultaneously facilitating thermal isolation of the sensor. Briefly, a sensor housing described herein comprises a cavity for housing a sensor and a heat sink. The heat sink is configured to dissipate heat from the sensor housing and thermally isolate the sensor housing from other heat generating components, such as other portions of a luminaire.

Abstract: A lighting device comprises rectification circuitry configured to produce rectified alternating current (AC) from input AC comprising a plurality of cycles. The lighting device further comprises lighting circuitry coupled to the rectification circuitry. The lighting circuitry comprises first, second, and third sets of LEDs. The sets of LEDs are configured to turn on in sequence at least twice per cycle to together develop an output level of at least about 2000 lumens.

Abstract: A process for providing a desired environment in an indoor space includes providing light from one or more light sources suitable for meeting a set of general illumination parameters and dynamically adjusting the light from the one or more light sources based on a set of simulated environment illumination parameters while maintaining the light within the general illumination parameters. By dynamically adjusting the light from the one or more light sources, the feelings of the desired environment may be evoked within the indoor space. By maintaining the light output within the set of general illumination parameters, the effect of the dynamic adjustment may minimize distraction caused thereby.

Abstract: A modular troffer-style fixture particularly well-suited for use with solid state light sources. The fixture comprises a reflector that includes parallel rails running along its length, providing a mount mechanism and structural support. An exposed heat sink is disposed proximate to the reflector. The portion of the heat sink facing the reflector functions as a mount surface for the light sources. The heat sink is hollow through the center in the longitudinal direction. The hollow portion defines a conduit through which electrical conductors can be run to power light emitters. One or more light sources disposed along the heat sink mount surface emit light toward the reflector where it can be mixed and/or shaped before it is emitted from the troffer as useful light. End caps are arranged at both ends of the reflector and heat sink, allowing for the easy connection of multiple units in a serial arrangement.

Abstract: According to one aspect, a waveguide comprises a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body. A plug member comprises a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity. The second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.

Abstract: A lighting controller comprises power circuitry, transmitter circuitry, a touch-sensitive panel, and processing circuitry. The power circuitry is configured to relay power from the lighting controller to a solid state lighting fixture wired to the lighting controller. The transmitter circuitry is configured to wirelessly exchange signals with the solid state lighting fixture. The touch-sensitive panel is configured to emit light and receive touch input from a user. The processing circuitry is electrically coupled to the power circuitry, the transmitter circuitry, and the touch-sensitive panel. The processing circuitry is configured to wirelessly control, via the transmitter circuitry, the attribute of light emitted by the solid state lighting fixture in accordance with the touch input received via the touch-sensitive panel and control the light emitted from the touch-sensitive panel to indicate the attribute as the attribute is wirelessly controlled.

Abstract: A lens for distribution of light from a light emitter having an emitter axis. The lens comprising an inner surface and an output surface with faceted and smooth outer regions. At least one of the faceted outer regions is formed by a plurality of pairs of transverse outer regions extending in direction of a plane of bilateral symmetry of the lens. The inner surface defines an inner cavity about the emitter axis and has inner-surface stepwise discontinuities formed by a plurality of pairs of transverse inner regions with intersection regions therebetween. The lens may also have at least two secondary surface portions spaced apart and extending along two sides of the inner surface, the secondary surface portions being configured for total internal reflection (TIR) of light received from the inner surface.

Abstract: A troffer light fixture has a housing with a LED assembly positioned in the housing. The LED assembly includes at least one LED array comprising LEDs of at least two different colors. The LED assembly includes a first LED array having a first LED on a first string and a second LED on a second string and a second LED array having a third LED on a third string and fourth LED on a fourth string. A wide lens covers the LED array. A reflector assembly has a first reflective surface and a second reflective surface reflecting light from the at least one LED array laterally across the width of the wide lens. Alternatively, the LED array may be approximately one-half the width of the wide lens and the reflector may be eliminated.

Abstract: The present invention relates to different embodiments of lighting fixtures, such as high bay lighting fixtures, comprising one or more improved features. Some of these features include the direct mounting of emitters on a heat sink and/or the use of a template-like board for providing an electrical connection between emitters. These features can improve heat dissipation from the emitters and simplify fabrication. In other embodiments, expensive lens optics of prior art SSL fixtures can be replaced with a flat lens and reflector in order to produce a fixture having a satisfactory spacing criterion.

Abstract: This disclosure relates to LED based lighting systems, such as surface mounted lighting systems and lighting systems that can connected to an existing grid structure. These lighting systems can be utilized in many settings, for example, as primary lighting systems for a commercial building and for retrofit lighting improvement purposes. Devices according to the present disclosure provide lighting systems capable of mounting to an existing surface, such as a T-bar ceiling structure. These devices can further comprise modular elements which facilitate connections of multiple lighting body components, allowing for multiple lighting arrangements and providing a cost effective and easily configurable lighting design. In some embodiments, multiple lighting components can be attached together by movable joints, allowing further user control over light distribution from the lighting systems.

Abstract: A lighting fixture appears as a skylight and is referred to as a skylight fixture. The skylight fixture has a sky-resembling assembly and a plurality of sun-resembling assemblies. The sky-resembling assembly has a sky-resembling optical assembly and a sky-specific light source, wherein light from the sky-specific light source exits a planar interior surface of the sky-resembling light optical assembly as skylight light. The plurality of sun-resembling assemblies are arranged adjacent one another and extend downward from a periphery of the sky-resembling assembly. Each of the plurality of sun-resembling assemblies has a sun-resembling optical assembly and a sun-specific light source, wherein light from the sun-specific light source exits a planar interior surface of the sun-resembling optical assembly as sunlight light.

Abstract: A lighting fixture includes a fixture body, a lighting bay, a light source, and an auxiliary bay. The lighting bay is in a first portion of the fixture body. The light source is in the lighting bay, and is configured to provide light suitable for general illumination. The auxiliary bay is adjacent to the lighting bay in a second portion of the fixture body. The auxiliary bay includes a mounting surface suitable for mounting an auxiliary device in the auxiliary bay and an auxiliary bay frame surrounding the auxiliary bay, which supports and therefore allows for the installation of a removable auxiliary bay cover over the auxiliary bay. Providing the auxiliary bay in the fixture body allows auxiliary devices to be installed in a ceiling without any changes to the ceiling.

Abstract: A waveguide body comprises a length from a first end to a second end along a longitudinal axis, and a coupling portion that comprises first and second coupling surfaces. The first and second coupling surfaces define, at least in part, an elongate coupling cavity along the entire length of the waveguide body and a surface located opposite the coupling cavity. The waveguide body further comprises first and second opposed sections extending along the length of the waveguide body. The first and second opposed sections further comprise respective first and second lower surfaces disposed at different first and second side section angles with respect to a first axis lying in a plane normal to the longitudinal axis. The first axis bisects the coupling portion. Among other things, such a waveguide may be included in a luminaire along with a light source.

Abstract: Systems and methods for a current sharing driver for light emitting diodes are disclosed. One disclosed system includes: a first string of LEDs; a second string of LEDs connected in parallel with the first string; a first current control device connected in series with the first string of LEDs; a second current control device connected in series with the second string of LEDs; a first voltage measurement device coupled to the first string of LEDs and the second string of LEDs, the first voltage measurement circuit coupled to the first current control device and configured to control the first current control device; and a second voltage measurement device coupled to the first string of LEDs and the second string of LEDs, the second voltage measurement circuit coupled to the second current control device and configured to control the second current control device.

Abstract: The present invention addresses the problem of providing illumination in a manner that is energy efficient and intelligent. In particular, the present invention uses distributed processing across a network of illuminators to control the illumination for a given environment. The network controls the illumination level and pattern in response to light, sound, and motion. The network may also be trained according to uploaded software behavior modules, and subsets of the network may be organized into groups for illumination control and maintenance reporting.

Abstract: The present invention addresses the problem of providing illumination in a manner that is energy efficient and intelligent. In particular, the present invention uses distributed processing across a network of illuminators to control the illumination for a given environment. The network controls the illumination level and pattern in response to light, sound, and motion. The network may also be trained according to uploaded software behavior modules, and subsets of the network may be organized into groups for illumination control and maintenance reporting.