Abstract:
Embodiments of a lamp that distributes light from one or more light emitting diode (LED) devices with an intensity distribution having a batwing appearance. These embodiments can comprise a lens having a lens body with different types of optics to achieve the preferred distribution. In one example, the lens body has a first section with optics that embody a plurality of prismatic facets and a second section with optics that form a convex shape, curving outward relative to the LED device.
Abstract:
A lamp is provided with multiple light emitting elements such as e.g., LEDs, positioned about a heat sink. The heat sink contains an active cooling device that provides a flow of air over the heat sink to transfer heat away from the light emitting elements. One or more optical elements are positioned over the light emitting elements to e.g., assist in light distribution. The lamp construction improves the dissipation of heat while also providing for a more omni-directional distribution of light intensity. Embodiments of the lamp can be provided with one or more features to enhance aesthetic appeal and improve manufacturability.
Abstract:
A method for data compression includes reading first data representing sensor data capture, compressing the data with a lossless algorithm, transmitting the compressed data as a reference frame, reading subsequent data, calculating a delta between the first data and the subsequent data, compressing the data delta, and determining if the compression ratio of the compressed data delta is within a predetermined tolerance threshold. If the compression ratio is within the threshold, transmitting the compressed data delta frame, and repeating the calculating, compressing, and determining steps for subsequent data; Else if the compression ratio is not within the threshold, compressing the current subsequent data and transmitting the result as an updated reference frame. Then repeating the calculating, compressing, and determining steps for subsequent data. A system and a non-transitory computer-readable medium for implementing the method are also disclosed.
Abstract:
A lighting system includes a light source configured to generate light toward one or more surfaces or materials to inactivate one or more pathogens on the one or more surfaces or materials. The light includes an inactivating portion having wavelengths in a range of 280 to 380 nanometers.
Abstract:
An LED light module for illuminating a target plane is provided. The LED light module includes a first LED source, a second LED source disposed adjacent the first LED source, a first lens covering the first LED source, and a second lens covering the second LED source. The first lens is configured to direct first light beams emitted from the first light source to the target plane. The second lens is configured to direct second light beams emitted from the second light source to the target plane. At least one of the first and second lenses is shaped to have an asymmetrical profile. A backlighting system and a fixture incorporating the LED light module are also provided.
Abstract:
Provided is a traffic communication network that includes a signaling system having a plurality of light signaling devices, a controller disposed at at least one traffic intersection, and configured to wirelessly control the plurality of light signaling devices. A remote control system is also provided to wirelessly transmit commands to the controller and directly to the plurality of light signaling devices.
Abstract:
Thermal management approaches and methods for structures requiring certain optical and thermal properties, for example, components of LED-based lighting units. Such a structure is in thermal communication with a source of visible light and thermal energy, and visible light emitted by the source passes through the structure. The structure includes a portion formed of a composite material containing a polymeric matrix material and a fiber material that contributes an optical scattering effect to the visible light passing through the composite material. The fiber material is made up of individual fibers that each comprise a core material and an opaque diffusive white coating on an external surface thereof. The fiber material and its coating contribute to the thermal conductivity and an optical scattering effect of the composite material.
Abstract:
An outdoor light emitting diode (LED) luminaire includes a plastic housing having two or more surfaces, a printed circuit board (PCB) coupled to at least one of the two or more surfaces, the PCB including a substrate and a conductive surface on the substrate, a plurality of LED light sources mounted on the PCB, a first portion of the conductive surface forming conductive paths in electrical communication with the plurality of LED light sources, and a second portion of the conductive surface forming thermal pads at a plurality of locations that are at least one of between and around the plurality of LED light sources, the thermal pads configured to dissipate heat generated by the plurality of LED light sources.
Abstract:
The specification and drawings present a new apparatus such as a halogen incandescent lamp is presented herein, the apparatus comprising a light source such as a light-generating element made of tungsten, configured to generate a visible light such as white light having chromaticity coordinates of the light source in a clear center in a color space, and a component such as light-transmissive envelope, enclosing the light source and comprising a coating with a compound comprising elements of neodymium and fluorine and configured to provide a desired light spectrum by filtering the generated visible light using the compound, where the desired light spectrum having chromaticity coordinates in the color space being shifted from the clear center below the black-body locus and outside of a four-step MacAdam ellipse of the light source to meet a predefined requirement for a modified spectrum lamp.
Abstract:
The specification and drawings present a new apparatus such as a lighting apparatus, the apparatus comprising at least one LED (or OLED) module, configured to generate a visible light such as white light, and at least one component such as optical component comprising a compound consisting essentially of the elements neodymium (Nd) and fluorine (F), and optionally including one or more other elements. The lighting apparatus is configured to provide a desired light spectrum by filtering the generated visible light using the compound.