15193results about "Outdoor lighting" patented technology

An illuminating device coupled with sensors or an image acquisition device and a logical controller allows illumination intensity and spectrum to be varied according to changing user needs. The system provides illumination to areas according to the principles of correct lighting practice for the optimal performance of visual tasks in the most efficient, cost effective manner. Aspects of the invention include: lighting fixtures which adapt to ambient lighting, movement, visual tasks being performed, and environmental and personal conditions affecting illumination requirements at any given instant. Lighting fixtures having spatial distribution of spectrum and intensity, providing both “background” room lighting, and “task” lighting.

The present invention provides a linear lighting apparatus with improved heat dissipation and a method for improving the heat dissipation in a linear lighting apparatus. The apparatus includes a plurality of light emitting diodes, a plurality of primary optical assemblies and an apparatus housing. The primary optical assemblies are each in contact with one of the plurality of light emitting diodes. The primary optical assemblies and a second optical assembly are configured to refract the light so as to create a linear light source emanating from the apparatus. The apparatus housing is configured to dissipate thermal energy from the light emitting diodes.

In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.

An optical transmission tube for illumination is uniquely incorporated into any one of a variety of automotive, commercial, retail, structural, architectural, safety, or other products including running boards, vehicle interior compartments such as a glove box, approximate the license plate attachment area on a vehicle, a trunk, a vehicle hood, on a vehicle door, a vehicle bumper, a vehicle luggage rack, a picture frame, a flashlight, a building, a guard rail, a construction barrier, a bicycle, a sign, an appliance interior compartment such as a refrigerator, a part bin, a retail display shelf, a clipboard, a step, a tractor trailer, a desk, a walkway, a room or storage chamber, a runway, an instrument panel, a railroad crossing gate, an emergency sign, an elevator doorway, a swimming pool, a dog collar, a fish tank, a baby crib a hand rail, an inline skate an island in a parking lot or on a street, affixed to a curb, or on safety clothing.

A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The optical system manipulates light emitted by a planar light emitters such as electrically-interconnected LED chips. Each light emitting region in the array is surrounded by reflecting sidewalls whose output is processed by elevated prismatic films, polarization converting films, or both. The optical interaction between light emitters, reflecting sidewalls, and the elevated prismatic films create overlapping virtual images between emitting regions that contribute to the greater optical uniformity. Practical illumination applications of such uniform light source arrays include compact LCD or DMD video image projectors, as well as general lighting, automotive lighting, and LCD backlighting.

A solar energy-operated street-lamp device is disclosed. The solar energy-operated street-lamp device is characterized in that the solar energy-operated device includes a solar energy-operated absorption board, a circuit board and a storage battery that is mounted within a post seat of the lamp-post. The power stored in the storage battery will be delivered to an LED via circuit board to provide illumination. The solar energy absorption board and the transparent protective hood are of arc-shape so that the sunlight can be converged onto the solar energy absorption board and at the same time, dust particles and birds' excrement or fallen leaves will not be collected on the surface of the hood surface.

A method and apparatus is provided for a multiple light-source illuminating device, the design and construction of which is derived from the lighting requirements of a specific lighting application. The resulting illuminating device (16) provides illumination according to the principles of lighting practice for the optimal performance of visual tasks. Coupling with sensors (21) and logical control (20) allows illumination intensity and spectrum to be varied according to changing user needs. The illuminating device includes multiple discrete light emitting components of different spatial intensity distribution and color spectrum mounted in specific orientations such that the application oriented combined lighting effect is created. The control is provided via a differentiated power supply (19) capable of affecting the current, voltage and duty cycle determining the relative contribution of each light source effecting a different spatial intensity distribution and color spectrum.

A high-powered lighting assembly includes an easily sealed continuous thermal barrier and a solid-state actively controlled closed-loop refrigeration system to maximize operational efficiencies and increase unit life. The thermal barrier prevents thermal back-flow from a heat sink plate or a housing to a lighting array while insulating a control module and a thermal sensor with improved sealing geometry. The refrigeration system is optimally positioned to controllably pump heat from the lighting array to the heat sink plate.

In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.

An apparatus and method is characterized by providing an optical transfer function between a predetermined illuminated surface pattern, such as a street light pattern, and a predetermined energy distribution pattern of a light source, such as that from an LED. A lens is formed having a shape defined by the optical transfer function. The optical transfer function is derived by generating an energy distribution pattern using the predetermined energy distribution pattern of the light source. Then the projection of the energy distribution pattern onto the illuminated surface is generated. The projection is then compared to the predetermined illuminated surface pattern to determine if it acceptably matches. The process continues reiteratively until an acceptable match is achieved. Alternatively, the lens shape is numerically or analytically determined by a functional relationship between the shape and the predetermined illuminated surface pattern and predetermined energy distribution pattern of a light source as inputs.

First, second and third lighting devices each comprise a thermal conduction element, solid state light emitters and a reflective element. In the second device, the conduction element defines an opening; and the emitters and reflective element are mounted on a first side of the conduction element. In the third device, the conduction element defines an opening; a first portion of a first side of the conduction element is in contact with a contact region of a construction surface; and the emitters and reflective element are mounted on the first side. A fourth device comprises a conduction element and emitters; a first portion of a first side of the conduction element is in contact with a contact region of a construction surface; the emitters are mounted on a second portion of the first side of the conduction element; and a second side of the conduction element is exposed to ambient air.

In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.

In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.

A white LED lighting device and a light source for white LED lighting that enable an energy-saving, maintenance-free operation while ensuring ample illuminance.Structure of a light source for white LED lighting, constituted by: inserting and holding a plurality of white LED elements in holding holes in a reflective plate, said plate being constituted by providing a required number of said holding holes, in a matrix-like array of prescribed pitch, in a plate of shape corresponding to the illuminating surface of a lamp body; fixing said plurality of white LED elements at locations 2 to 4 mm behind their respective electrode portions; attaching the positive and negative terminals of the white LED elements to a base plate for the LED elements, said base plate being disposed parallel to and directly behind the reflective plate; and forming, at the positive and negative terminals, a series-parallel electrical network suitable for the applied voltage.

A solar-powered lighting system includes a flexible, wrap-around, preferably self-stick panel of photovoltaic laminate applied to the outside surface of a light pole. An LED light fixture is connected preferably at or near the top of the pole and has the same or similar diameter as the pole. The LED light fixture has multiple columns and rows of LEDs and an interior axial space for air flow to cool the LEDs. The pole preferably also has vents and axial passage(s) for creating a natural updraft through at least a portion of the pole and the light fixture, for cooling of the photovoltaic panel interior surface, the LEDs, and / or other equipment inside the fixture or pole, and batteries that may be provided inside the pole or pole base. A purely or mainly decorative additional fixture, which emulates conventional outdoor light fixtures, may be provided on the lighting system, wherein the decorative additional fixture includes no, or only a minimal, light source. The lighting system has a sleek profile with few or no protrusions from the sides of the pole and from the LED light fixture, except for the optional decorative fixture that provides a conventional street light appearance even though the main light source is the LED fixture.

In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.

The present invention is directed to an LED lighting source comprising a housing adapted for coupling to an AC power source; a rectifier circuit for converting the AC power to a DC supply; a power control circuit disposed in the housing and electrically connected to the DC supply; a string of LED's electrically connected between a control node of the power control circuit and the DC supply, the LEDs in the string being connected in series and being of a number selected to produce a voltage difference across the power control circuit sufficient to power active components of said power control circuit when powered from the DC supply and the power control circuit for limiting a forward current through the string to a nominal forward current of a single LED.

A home network system for controlling one or more home appliances connected to a network and a method for operating the same. If an alive message or a connection termination message is normally generated from the home appliance, or if the alive message or the connection termination message is not normally transmitted to a network manager due to a transmission failure in a communication path, the network manager automatically recognizes a network connection state of the home appliance using a network search process, performs a connection termination operation according to the recognized information, and updates network information, resulting in increased reliability and user's convenience of the home network system.

An LED lamp structure with adjustable projection angle includes an aluminum extrusion lamp housing, an LED module, and a rotating rack. The lamp housing has a base, a plurality of heat sinks extended from the base, and a receiving portion formed on an external side of the base. The LED module includes a fixing base, a lampshade on a side of the fixing base, and a plurality of LED lamps in the lampshade, and the fixing base is coupled in the base of the lamp housing. The rotating rack has a hollow cylindrical body, a fixing board extended from a side of the cylindrical body, and a connecting portion formed on the fixing board and connected to the corresponding receiving portion, so that the projection angle of the LED module can be adjusted according to the illumination requirements for different positions and provide the light required for the illumination area.

In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.

A modular approach is provided for sensing and responding to detected activity or an event in a region that can be implemented quickly and easily using existing city infrastructure to establish a grid of sensors and detectors to provide localized or wide area coverage. The approach provides a turnkey solution or smart city in a box that can be adapted to different situations and needs to provide communications functionality and / or a desired or customized functionality for a wide range of different applications.

A radiation distribution system designed to produce a batwing distribution. The system may be used with radiative sources emitting in the visible spectrum or in other spectra. The system comprises a specially shaped lens disposed over a radiative source, such as an LED, for example. The lens and source are arranged between two reflector bodies, both of which have an elongated reflective surface that faces the source. The reflector bodies each have two different reflective surfaces that face outward and away from each other. The lens and both reflective surfaces work in concert to redirect a portion of the emitted radiation to create the desired batwing distribution. Several sources may be arranged linearly between a single pair of reflector bodies on a common surface to create a linear array of sources. Likewise, multiple linear arrays may be combined to form a two-dimensional array. In the two-dimensional configuration, linear arrays of sources are disposed on both sides of a reflector body, so that both of the reflective surfaces are utilized.

LED apparatus for illumination toward a preferential side, including a light emitter having at least one LED on a base, a primary lens positioned over the light emitter and having a central axis, and a secondary lens placed with an inner surface surrounding the primary lens. The secondary lens has a base-adjacent lower end defining a main plane substantially perpendicular to the central axis, and a compound outer lens surface with a middle-region reference point defining a reference axis parallel to the central axis. The compound outer lens surface includes (A) a principal perimeter surface centered on the preferential side, the principal perimeter surface (a) projecting to a ridgeline subtending a substantial angle about the central axis, and (b) terminating inwardly at the ridgeline, (B) a middle region containing the reference point and having a concavity thereabout, and (C) a non-principal perimeter surface centered on the non-preferential side and adjoining the middle region and the principal perimeter surface.

An LED floodlight fixture includes (1) a housing that has (a) at least one end-portion and (b) a single-piece extrusion including (i) a base having an LED-adjacent surface and an opposite surface and (ii) a heat-dissipating section having heat-dissipating surfaces extending from the opposite surface, and (2) an LED arrangement mounted to the LED-adjacent surface in non-water / air-tight condition with respect to the housing. The housing preferably forms at least one venting gap to provide cool-air ingress to and along the heat-dissipating surfaces by upward flow of heated air therefrom. Additionally and / or alternatively, the base of the single-piece extrusion has one or more venting apertures to provide cool-air ingress for such purpose. One aspect of the invention involves the heat-dissipating section of the extrusion including a closed extruded wireway therealong enclosing wires extending to / from electrical component(s).

A linear light system, and a linear luminaire used in the system, for lighting a traffic surface. The linear luminaire has a plurality of light emitting diodes (LEDs) disposed in a linear matrix along the length of the traffic surface, and a plurality of refractive lenses for directing the emitted light from the LEDs at the traffic surface. The traffic surface is typically the roadway of a tunnel. A refractor lens is used to direct the emitted light from the LEDs predominantly toward at least the traffic surface.

A street light includes a base and a light source such as LEDs is connected to a heat dispensing device which is connected to the base. A cover is connected to the base and the at least one light source is located between the base and the cover. A plurality of fins are connected to a top of the base.