Abstract:
In accordance with certain embodiments, a lighting system comprisig: a flexible substrate; a first group of light-emitting elements disposed on the substrate and having a first distribution of correlated color temperature; and a second group of LEEs disposed on the substrate and having a second distribution of CCT different from the first distribution of CCT, wherein the substrate is shaped such that the first group of LEEs and the second group of LEEs are not simultaneously observable.
Abstract:
In various embodiments, a control system for a system (e.g., an electronic circuit) iteratively applies input to and senses output from a load to regulate operation of the load.
Abstract:
In accordance with certain embodiments, illumination elements having different shapes defined by contiguous arrangements of illumination unit cells may be assembled to illuminate an arbitrary two-dimensional area. In various embodiments, the illumination elements include flexible light sheets and one or more sealed regions containing light-emitting elements, the sealed regions defined by seals between a top housing and a bottom housing and/or the light sheet.
Abstract:
In various embodiments, a converter for a lighting apparatus iteratively applies voltage to and senses current from the lighting apparatus to regulate operation thereof.
Abstract:
In accordance with certain embodiments, electronic components such as light-emitting elements are bonded to connection points on a substrate via pressure applied via a membrane and curing of a pressure-activated adhesive.
Abstract:
Embodiments of the present invention relate to illumination systems based on flexible light sheets that have additional functionality enabled by the incorporation of at least one folded portion of the flexible light sheet. The flexible sheets are folded to define first and second portions of the light sheet divided by the fold, and the first and second portions of the light sheet may both feature light-emitting elements thereon.
Abstract:
In accordance with various embodiments, a modular lighting system features multiple light panels each having multiple light-emitting elements thereon, as well as connectors for electrically and mechanically interconnecting the light panels. A lighting system comprises a first light panel comprising a first substrate, first and second spaced-apart power conductors disposed on the first substrate, a plurality of first light-emitting elements disposed on the first substrate and electrically connected to the first and second power conductors, a first snap connector electrically connected to the first power conductor, and a second snap connector electrically connected to the second power conductor, and a second light panel comprising a second substrate, third and fourth spaced-apart power conductors disposed on the second substrate, a plurality of second light-emitting elements disposed on the second substrate and electrically connected to the third and fourth power conductors, a third snap connector electrically connected to the third power conductor, and a fourth snap connector electrically connected to the fourth power conductor, wherein (i) the first snap connector is configured for connection to the third snap connector, thereby electrically coupling the first power conductor to the third power conductor, and (ii) the second snap connector is configured for connection to the fourth snap connector, thereby electrically coupling the second power conductor to the fourth power conductor.
Abstract:
Testing systems and methods for testing a light-emitting device comprising a plurality of discrete light-emitting elements disposed over a substrate, the testing system comprising: a power source for energizing at least some the plurality of discrete light-emitting elements; an imaging system for acquiring an image of at least a some of the energized light- emitting elements during energization thereof; and an analyzer for determining, from the image, an optical characteristic of each of the imaged light-emitting elements.
Abstract:
In accordance with various embodiments, planar light sheets are conformed to interior volumes of housings to produce predetermined spatial optical characteristics such as luminous intensity distributions. Embodiments of the present invention relate to illumination systems based on flexible light sheets and that incorporate additional functionality that enables various different mechanical mounting and electrical and/or mechanical joining techniques. For example, illumination systems in accordance with embodiments of the invention incorporate rigid, semirigid, flexible, and/or positionable housings that at least partially enclose flexible light sheets and that may also provide electrical connectivity.
Abstract:
A method for repairing a lighting system comprises identifying a fault location; disposing over or under the substrate at the fault location a patch comprising (i) a patch substrate, (ii) two conductive traces disposed on the patch substrate, and (iii) a replacement light-emitting element electrically coupled to the two conductive traces of the patch; and electrically connecting the replacement light-emitting element across the fault location by electrically connecting each of the conductive traces of the patch to one of the conductive traces defining the fault location.