Abstract: The present invention provides a luminance enhancement apparatus and method for use with light-emitting elements comprising a conversion system adjacent the light-emitting element for converting electromagnetic radiation of one or more wavelengths to alternate wavelengths. This conversion process can be enabled by the absorption of the one or more wavelengths by the conversion system and emission of the alternate wavelengths thereby. The conversion system comprises a predetermined surface relief pattern on the face opposite the light-emitting element to provide a means for reducing absorption of the emitted alternate wavelengths in addition to providing a means for reflection of the emitted alternate wavelengths from the conversion system with a reduced number of reflections, thereby enhancing the illumination provided by the light-emitting element.

Abstract: The present invention provides a parallel pulse code modulation system enabling the independent control of a plurality of groups of one or more electronic devices. The system comprises a memory unit for receiving control data, from an external source, wherein this memory unit is configured to enable writing of the control data thereto and reading of the control data therefrom. The system further comprises a multiplexer connected to the memory unit for receiving the control data from the memory unit and organizing the control data into a serial data stream comprising groups of data. A shift register connected to the multiplexer receives the serial data stream from the multiplexer and translates each group of data into a parallel data stream output. Each parallel data stream output represents control parameters for a particular group of one or more electronic devices.

Abstract: The present invention provides an illumination system enabling dynamic colour control of the illumination produced by the system. The illumination system comprises a plurality of light-emitting elements which create illumination at a number of different wavelengths wherein the colour that can be produced by the illumination system is based on the colour gamut defined by the colours of the individual light-emitting elements being blended. The system further includes at least one detecting device in order to collect information relating to the illumination being created by the plurality of light-emitting elements, wherein this information can relate to the luminous flux being produced at the various wavelengths.

Abstract: The present invention provides a system and method for the diffusion of illumination from discrete light sources such that the illumination is blended and directed in one or more desired directions. The illumination system comprises a substrate having a plurality of light-emitting elements thereon which are arranged in an array, wherein these light-emitting elements produce illumination at one or more wavelengths. Proximate to the light-emitting elements is a diffuser, which collects the illumination produced by the discrete light-emitting elements and redirects this illumination in one or more predetermined directions, thereby blending together the one or more wavelengths of illumination and concentrating the illumination in the predetermined directions. The illumination system further comprises a power system, which provides energy to the light-emitting elements thereby resulting in their activation.

Abstract: Kinoform diffusers (82) exhibit controllable diffusion characteristics that include off-axis transmittance and reflectance properties, elimination of zero-order beam, and freedom from spectral dispersion under achromatic illumination. Light control devices (76, 80, 82) implemented with kinoform diffusers having controllable diffusion characteristics provide anisotropic luminous intensity distributions and glare control at high viewing angles while maintaining high luminaire efficiency or daylight utilization.