Abstract:
Techniques and architecture are disclosed for horticultural lighting systems and devices, such as a light module assembly (50). The assembly includes a housing with a first and second light module attached thereto. The first and second light modules include a mounting block (130 to be received in the housing. The mounting block includes a plurality of light sources to generate light to stimulate growth of a plant. The first light module includes a first removable lens (150) to focus light from the light sources to a first portion of the plant and in a first direction relative to the plant. The second light module includes an optical conduit (154A) attached thereto. The conduit is to focus light from the light sources to a second portion of the plant and in a second direction different from the first direction. The assembly transmits light to an upper portion and a lower portion of the plant.
Abstract:
Techniques and architecture are disclosed for mobile transport systems configured to determine vehicle positions within an area using light-based communication signals. The system includes a plurality of luminaires located in an area and configured to transmit luminaire position data recognizable by a sensor disposed on a vehicle. The sensor receives an image of a luminaire including a light-based communication signal encoded with luminaire position data. Luminaire position data can be combined with luminaire layout information to determine a known location of the luminaire. A vehicle position relative to the known luminaire location can be determined based on mathematical relationships. Vehicle orientation relative to the area can be determined based an asymmetric fiducial pattern or multiple known luminaire locations. The system can combine a vehicle position relative to a known luminaire location with vehicle orientation relative to the area to determine a vehicle position relative to the area.
Abstract:
Programmable drivers (or power supplies) for solid state light sources are disclosed, on which output regulation is improved to expand the dimming range to 1% and reduce and/or remove flicker. Additional fault conditions are set up to avoid latching, and thus provide for a controllable restart feature. Such drivers include an isolated half bridge resonant converter with an improved control approach designed to regulate very low current though primary side in a feed-forward loop. Such drivers include both digital and analog loops that improve the performance in steady state and/or during transients, particularly for a lighting load, in comparison to a single full digital control.
Abstract:
A laser-activated remote phosphor (LARP) target comprising a substrate 8114), a dichroic filter(120) disposed on the substrate, a phosphor converter (102) disposed on the dichroic filter, and an aperture structure (230) disposed on the phosphor converter. The phosphor converter comprises a luminescent material that at least partially converts a primary laser pump light (110) into a secondary light (108) having a different peak wavelength. The dichroic filter substantially transmits the primary laser pump light and substantially reflects the secondary light. The aperture structure covers the lighting emitting surface except for an aperture (240) in the aperture structure whereby a substantial portion of secondary light passes through the aperture in the aperture structure for coupling into an optical system.
Abstract:
There is herein described a light source that homogenizes the light produced by a large area array of forward directed LEDs (102) mounted on highly reflective substrate (106), while achieving a low-profile form factor and maintaining high efficacy. The LED light source employs a diffuser (120) comprised of two diffusing layers: a low scattering diffusing layer (118) bonded to the LEDs (102) and a high scattering diffusing layer (114) that is bonded to the low scattering diffusing layer (118). The LED light source achieves good diffuse illumination with a thin diffuser by making use of a light channeling effect between the highly reflective substrate (106) and the high backscattering from the high scattering diffusing layer (114).
Abstract:
Solid-state lamps having an electronically adjustable light beam distribution are disclosed. In accordance with some embodiments, a lamp configured as described herein includes a plurality of solid-state emitters (addressable individually and/or in groupings) mounted over a non-planar interior surface of the lamp. The interior mounting surface can be concave or convex, as desired, and may be of hemispherical or hyper-hemispherical geometry, among others, in accordance with some example embodiments. In some embodiments, the heat sink of the lamp may be configured to provide the interior mounting surface, whereas in some other embodiments, a separate mounting interface, such as a parabolic aluminized reflector (PAR), a bulged reflector (BR), or a multi-faceted reflector (MR), may be included to such end. In some cases, a lamp provided as described herein may be configured for retrofitting existing lighting structures.
Abstract:
Solid-state lamps having an electronically adjustable light beam distribution are disclosed. In accordance with some embodiments, a lamp configured as described herein includes a plurality of solid-state emitters (addressable individually and/or in groupings) mounted over a non-planar interior surface of the lamp. The interior mounting surface can be concave or convex, as desired, and may be of hemispherical or hyper-hemispherical geometry, among others, in accordance with some example embodiments. In some embodiments, the heat sink of the lamp may be configured to provide the interior mounting surface, whereas in some other embodiments, a separate mounting interface, such as a parabolic aluminized reflector (PAR), a bulged reflector (BR), or a multi-faceted reflector (MR), may be included to such end. In some cases, a lamp provided as described herein may be configured for retrofitting existing lighting structures.
Abstract:
Techniques are disclosed for using an infrared (IR) sensor to sense flame and/or activity within an environment of a building, such as a home or office. One example embodiment provides a multi-condition sensing device that includes an IR sensor for sensing both human occupancy and fire within a given environment. Another example embodiment provides a multi-condition sensing device that includes a plurality of sensors. A first of the sensors includes an IR sensor that is adapted to sense IR radiation within a given environment. A second of the sensors is adapted to sense a second environmental condition (different than IR radiation) within the given environment. Another example embodiment provides a standalone modular sensor block with a standard communication interface to a building management system. The sensor block may act as a combo-sensor as well as an active fire detector and alarm.
Abstract:
There is herein described a method for forming a circuit board comprising: (a) obtaining a substrate of a first formable polymer material, the substrate having at least one electrical conductor on a surface; (b) laminating a coverlay of a second formable polymer material to the substrate to form a flexible circuit board wherein the at least one electrical conductor is disposed between the coverlay and the substrate, the coverlay having a plurality of holes exposing at least a portion of the at least one electrical conductor; (c) electrically connecting light emitting diodes (LEDs) to exposed portions of the at least one electrical conductor; (d) heating the circuit board while applying a force to cause the circuit board to bend and adopt a shape having arcuate cross section; (e) cooling the circuit board until the shape becomes fixed whereby a thermoformed circuit board having an arcuate cross section is formed.
Abstract:
Lighting devices, and methods of manufacturing the same, are provided. A lighting device includes a cover through which emitted light passes and a formed flexible light engine. The formed flexible light engine is placed within a housing, or serves as the housing itself. An interface couples to cover to the housing or the formed flexible light engine. The formed flexible light engine includes a flexible substrate and a plurality of solid state light sources located thereon. The plurality of solid state light sources are configured to emit light through the cover. The formed light engine has a defined shape created during the forming process. This enables placement on the housing within the lighting device, or contributes to the overall shape of the lighting device.