Abstract: According to at least one embodiment, there is disclosed a method of controlling at least one illumination apparatus comprising a plurality of light sources operable to emit a plurality of different spectral distributions of light, each light source of the plurality of light sources operable to emit a respective one of the plurality of different spectral distributions of light, the method comprising compensating for a degradation of at least one of the plurality of light sources emitting one of the plurality of different spectral distributions of light, wherein compensating for the degradation of the at least one of the plurality of light sources comprises: increasing an electric power supplied to the at least one of the plurality of light sources; and reducing a difference between an overall spectral distribution of light emitted by the plurality of light sources and a desired overall spectral distribution of light.

Abstract: According to one embodiment, there is provided a method of controlling a first at least one illumination apparatus releasably connected to a first at least one of a plurality of connection regions of a first support body. The method involves controlling at least one characteristic of light emitted from the first at least one illumination apparatus in response to at least one measurement from a sensor apparatus. Other systems and methods are also disclosed.

Abstract: According to one embodiment, there is provided a method of controlling a first at least one illumination apparatus releasably connected to a first at least one of a plurality of connection regions of a first support body. The method involves controlling at least one characteristic of light emitted from the first at least one illumination apparatus in response to at least one measurement from a sensor apparatus. Other systems and methods are also disclosed.

Abstract: The invention includes methods and systems of optimizing plant growth where the quantity and quality of ambient light received by a plant is measured, the difference between the measured ambient light and an optimized target spectral irradiance is determined, and a light source is adjusted to provide supplemental light in a quantity and quality to achieve the target spectral irradiance. A light source may include a plurality of LEDs, configured to have a combined output which is adjustable for frequency and intensity and a radiometer for measuring ambient light. The light source further includes a control system which receives the output of the radiometer, determines the difference between the ambient spectral irradiance and a target spectral irradiance, and causes the plurality of LEDs to emit supplemental light substantially equal to the difference. A lighting system may include separate light sources and radiometers for different zones, allowing for separate and customized control for each zone.

Abstract: A new set of branched nanowire or nanotree structures and their fabrication process. Some structures have one or more of the following distinctions from other branched nanowires: (1) the trunk and branch diameter and branching number density can be changed along the trunk's length; (2) the branch's azimuthal direction can be controlled along the trunk's length; (3) the branch's diameter can be modulated along its length; (4) the crystal orientation and branches of the ensemble of nanowires can be aligned on a non-epitaxially matched substrate. The structures are made by a geometrically controlled kinetic growth method.

Abstract: Method and apparatus for producing glancing angle deposited thin films. There is a source of collimated vapour flux, the source of collimated vapour flux having a deposition field; and a travelling substrate disposed within the deposition field of the source of collimated vapour flux, the collimated vapor flux being collimated at a defined non-zero angle to a normal to the travelling substrate.

Abstract: A new set of branched nanowire or nanotree structures and their fabrication process. Some structures have one or more of the following distinctions from other branched nanowires: (1) the trunk and branch diameter and branching number density can be changed along the trunk's length; (2) the branch's azimuthal direction can be controlled along the trunk's length; (3) the branch's diameter can be modulated along its length; (4) the crystal orientation and branches of the ensemble of nanowires can be aligned on a non-epitaxially matched substrate. The structures are made by a geometrically controlled kinetic growth method.