Abstract: A lighting assembly having a plurality of light sources and a lens matrix having a plurality of lenses. The lens matrix may be positioned relative to the light sources so that each light source resides in a first orientation within one of the lenses and emits a light distribution. Relative translation between the light sources and the lens matrix alters the orientation of the light sources within the lenses, creating a different light distribution. A light source's orientation may change within the same lens, or the light source may translate to a different lens to alter the distribution of its emitted light.

Abstract: A pole system comprises a shaft that includes tracks for mounting luminaires, street signs, bicycle racks, decorative signage, banners, traffic signals, pedestrian signals, or other items. In one embodiment, a pole system includes a shaft with two or more vertical tracks. Each track may have a dovetail shape and may be configured to receive mounting nuts for mounting items to the shaft. One or more vertical raceways separate from a center opening of the shaft may also be present.

Abstract: A lamp heat extractor device for lowering the cold spot temperature of a fluorescent lamp includes a base portion adapted to be attached to a heat conductive portion of the fluorescent lighting fixture proximate the fixture's lamp socket or sockets, and an extended sleeve end portion thermally connected to the base portion by a conductive connector portion. The conductive connector portion positions the extended sleeve portion so that it contacts the cold spot end of the fluorescent lamp or lamps held by the lamp sockets of the fixture to allow heat transfer to the fixture housing to which the heat extractor device is attached. Suitably, the outer surface of the extended sleeve end portion of the heat extractor device can have a plurality of radially extending fins for increasing surface area for heat radiation from the extended sleeve portion, thereby increasing the overall heat extracting efficiency of the device.

Abstract: A desired color of illumination of a subject is achieved by determining settings for color inputs and applying those setting to one or more systems that generate and mix colors of light, so as to provide combined light of the desired character. In the examples of appropriate systems, an optical integrating cavity diffusely reflects light of three or more colors, and combined light emerging from an aperture of the cavity illuminates the subject. System settings for amounts of the different colors of the input lights are easily recorded for reuse or for transfer and use in other systems.

Abstract: A lighting luminaire for use in a refrigerated display case includes an LED mounting portion comprising a plurality of light emitting diodes (“LEDs”) mounted thereon, a reflector, and a lens. The LED mounting portion and reflector are sized and arranged to form a reflective cavity for diffusing and directing light from the plurality of LEDs through the lens and out of the luminaire. The LED mounting portion and reflector are either attached to each other as separate components or are integrally formed. The lens is held in place in the luminaire between the LED mounting portion and reflector. The LED mounting portion and/or reflector have a reflective surface for reflecting light emitted by the LEDs. Methods for retrofitting an existing luminaire in a refrigerated display with an LED luminaire are also provided.

Abstract: A reflector (14) for a luminaire comprises a generally parabolic wall (28) having series of main right-angled prisms (16) and an interleaved series of transition prisms (18). The main and transition prisms have essentially the same shapes and follow the same overall curvature to control the illumination. The transition prisms transition into the main prisms by merging a peak of a transition prism into the valley between adjacent main prisms in a short transition zone (20). Thus, the transition zone has only a small effect on the overall lighting pattern.

Abstract: The present invention relates to systems, equipment and methods that provide emergency lighting and allow the detection of brownout conditions. One aspect of the present invention is an emergency lighting system with an input voltage interface for receiving an input voltage, a brownout detection component for detecting a brownout condition on the input voltage and generating a brownout signal, a switch mode power converter for altering the input voltage; and an emergency lighting control and battery charging component for controlling the charging of a battery pack and receiving the brownout signal. Another aspect of the invention is a method of providing emergency lighting performed by receiving an input voltage; automatically establishing a brownout threshold relative to the input voltage; and detecting a brownout condition.

Abstract: A luminaire reflector of the type that is dome-shaped and includes a flange at the bottom provides a modified a flange that alters the pattern or other effect of light trapped in the wall of the reflector and exiting through the flange. When the bottom surface of the flange is angled with respect to the horizontal, the light exiting the flange is spread and lifted. In accordance with another embodiment, the flange is provided with a colored layer to provide decorative effects to the light exiting the flange.

Abstract: An enclosure for an LED circuit board is manufactured from a flame resistant material and includes LED apertures through which LEDs mounted on an LED circuit board may pass. The enclosure is designed to be positioned on the LED circuit board so that, when so positioned, the LEDs extend at least partially through the LED apertures in the enclosure. When the enclosure is positioned on the board, portions of its lower surface contact the upper surface of the board. Various fixation/retention methods may be used to retain the enclosure in position relative to the circuit board. It is preferable that such methods allow for the separation of the enclosure from the board.

Abstract: For general lighting applications, a semiconductor chip produces near ultraviolet (UV) electromagnetic energy in a range of 380-420 nm, e.g. 405 nm. Semiconductor nanophosphors, typically doped semiconductor nanophosphors, are remotely positioned in an optic of a light fixture. Each phosphor is of a type or configuration that when excited by energy in the 380-420 nm range, emits light of a different spectral characteristic. The nanophosphors together produce light in the fixture output that is at least substantially white and has a color rendering index (CRI) of 75 or higher. In some examples, the fixture optic includes an optical integrating cavity. In the examples using doped semiconductor nanophosphors, the visible white light output exhibits a color temperature in one of the following ranges along the black body curve: 2,725±145° Kelvin; 3,045±175° Kelvin; 3,465±245° Kelvin; and 3,985±275° Kelvin.

Abstract: An LED fixture includes multiple LED drivers and multiple LED lamps so that the lifetime of the fixture is a multiple of the lifetime of a conventional fixture that uses only a single LED driver. A distributed controller activates and deactivates the LED drivers so that the different LED lamps are driven sequentially. An optional multi-lamp LED driver concurrently drives multiple LED lamps that have been previously driven by the LED drivers.

Abstract: An insertion aid device includes a handle to hold the insertion aid device and a tongue depressor to depress the tongue of the patient. A curved wedge-shaped tongue depressor maintains the patient's mouth in an open position.

Abstract: To improve semiconductor-based systems for generating white light, a phosphor is integrated with an external structure, such as a reflector. A disclosed exemplary system, for illumination applications, utilizes one or more semiconductor devices for emitting radiant energy of a first wavelength. A reflector outside the package of the LED or other semiconductor device has a reflective surface arranged to receive radiant energy from the energy source. At least some of the received radiant energy of the first wavelength excites one or more phosphors associated with an external light processing element, for example, located along the surface of the reflector, to emit light, including visible light energy of at least one second wavelength different from the first wavelength. In the examples, at least some of visible light emitted by the phosphor is reflected by the reflective surface of the reflector and directed to facilitate the particular humanly perceptible luminance or illumination application.

Abstract: A method and system for addressing nodes in a multi-drop wired network are disclosed. In an embodiment nodes communicate via a two-way communication bus. Upon receipt of an address command, a first node assigns itself a first address, closes a switch to activate an output port of the first node to enable a second node to receive communications from the first node, and sends a second address onto the two-way communication bus. The second address is received by all previously addressed nodes, including a controller if used, as well as the second node, which is as yet unaddressed. Upon receipt of the second address, the second node repeats the process. If a node does not receive an acknowledgement that a subsequent node has addressed itself, that node deactivates its output port and terminates the network.

Abstract: An elevated mesh network supported and operably coupled to street lamps can be used to remotely monitor and control field devices. The packet transceiver modules of the mesh network can also be coupled to sensors that monitor operation of a street lamp as well as environmental conditions. The elevated mesh network supported by street lamps can use RF links to couple with one or more remote field devices that also have packet transceiver modules. The elevated mesh network can also include a communications gateway that couples the elevated mesh network to an asynchronous communications system. The communications gateway is a store and forward system that can periodically connect to the asynchronous communications system in order to upload compressed data derived from the remote field devices. The asynchronous communications system can connect the elevated mesh network to a back-end computer system that may monitor, diagnose, and control the remote field devices.

Abstract: A lighting system has a sealable housing with a lamp cavity, a junction box and a partition wall there between with the junction box being laterally from beneath a lens opening. The system further includes a closure to close an access port in the partition wall which includes a conical wall with a circular plate truncating the wall. The plate extends across the bottom of the housing and a vertically extending sealing flange receives the closure. A ballast assembly is also located from beneath the lens opening. A formed seal is positioned about a lens which extends inwardly to capture optic components beneath the lens. A locking ring is restrained from compressing against the mounting flange of the lens. A lighting system employing an LED board array and LED power control includes a heat sink beneath the board array extending downwardly to a radiator for transfer of heat from the array downwardly to the lamp cavity for dissipation.

Abstract: Lighting fixtures provided with trim assemblies that prevent a vandal from rendering the fixtures inoperative or otherwise damaging or tampering with the fixtures, and further provides protection against damage due to accidental contact with the fixture. The fixtures generally include a mounting plate, a ceiling bracket, a reflector that houses a light source, and a bezel assembly. The ceiling bracket is supported on the ceiling by the mounting plate via the use of retainer brackets. The bezel assembly in turn is supported on the ceiling by the ceiling bracket. The bezel assembly includes a bezel housing and at least one tamper-resistant lens mounted in the housing. The bezel assembly serves to cover and protect the light fixture, particularly the light source housed in the fixture, from damage caused by intentional or accidental external forces.