The present invention relates to a building. The building includes a distributed power supply and a lighting system for being powered by the distributed power supply. The system includes distributed lights for being coupled to the distributed power supply. Covers are provided for covering respective lights. Photoluminescence is borne by each cover. Advantageously, the light charges the photoluminescence borne by the cover. In turn, the cover passively discharges and provides passive illumination in the dark by virtue of the photoluminescence. The building lighting system provides illumination for after-hours personnel in the building after the light is turned off, or in the event of a power disruption when a backup power generator is not present.

A high-power, high-brightness lighting system for large venue lighting, which includes a laser diode as the excitation source and one or more phosphor materials placed at a remote distance from the laser source. The invention offers a lighting system with the advantages of high brightness, high efficiency, high luminous efficacy, long lifetimes, quick turn-on times, suitable color properties, environmental sustainability, and easy maintenance, which may allow for smart and flexible control over large area lighting systems with resulting savings in operating and maintenance costs.

A light emitting device includes a base having a light reflecting surface and having a first side on which the light reflecting surface is provided, light sources mounted on the first side, and a half mirror disposed opposite to the base to reflect a part of incident light and to transmit another part of the incident light. Each of the light sources includes a reflecting layer on an upper surface of each of the light sources. The half mirror has an oblique reflectance with respect to wavelengths of light emitted from the light sources in a case where the light travels obliquely toward the half mirror. The half mirror has a perpendicular reflectance with respect to the wavelengths in a case where the light travels perpendicularly toward the half mirror. The oblique reflectance is smaller than the perpendicular reflectance.

Shades and/or reflectors for luminaires. The luminaires may be retrofitted with the shades and/or reflectors to selectively control the direction and/or spectrum of light emitted by the luminaires. In particular, the efficiency and/or color contrast of a luminaire may be improved by using wavelength shifting material, such as a phosphor, to absorb less desired wavelengths and transmit more desired wavelengths. The shade may provide a transmissive filter which reflects desired wavelengths such as red and green, while passing less desired wavelengths (e.g., blue) toward the wavelength shifting material which emits such as light of more desirable wavelengths.

Provided are an illumination device and a light fixture including the illumination device. The illumination device includes a body formed of a thermally-conductive material that includes a planar heat transfer surface and a fastener that is compatible with a base that couples the body to the light fixture. A substrate formed, at least in part from a dielectric material supports an array of light emitting diodes and a plurality of contacts electrically connected to the light emitting diodes. A thermally-conductive planar surface is provided to the dielectric material of the substrate to be placed in thermal communication with the heat transfer surface and conduct heat generated by the light emitting diodes to the body.

A lampshade system includes a lampshade cover and a support member. The lampshade cover includes a sheet of plastic material comprising a first end and a second end. The lampshade cover includes a design printed on the plastic material. The lampshade cover also includes a fastener configured to selectively fasten a first end of the sheet to a second end of the sheet to hold the lampshade cover in a three-dimensional lampshade shape. The design is exposed for viewing when the lampshade cover is in the lampshade shape. The support member is configured to selectively receive and support the lampshade cover relative to a lamp body, the support member comprising one or more arms extending from the lamp body.

Provided are an illumination device and a light fixture including the illumination device. The illumination device includes a body formed of a thermally-conductive material that includes a planar heat transfer surface and a fastener that is compatible with a base that couples the body to the light fixture. A substrate formed, at least in part from a dielectric material supports an array of light emitting diodes and a plurality of contacts electrically connected to the light emitting diodes. A thermally-conductive planar surface is provided to the dielectric material of the substrate to be placed in thermal communication with the heat transfer surface and conduct heat generated by the light emitting diodes to the body.

Provided are an illumination device and a light fixture including the illumination device. The illumination device includes a body formed of a thermally-conductive material that includes a planar heat transfer surface and a fastener that is compatible with a base that couples the body to the light fixture. A substrate formed, at least in part from a dielectric material supports an array of light emitting diodes and a plurality of contacts electrically connected to the light emitting diodes. A thermally-conductive planar surface is provided to the dielectric material of the substrate to be placed in thermal communication with the heat transfer surface and conduct heat generated by the light emitting diodes to the body.

A high-power, high-brightness lighting system for large venue lighting, which includes a laser diode as the excitation source and one or more phosphor materials placed at a remote distance from the laser source. The invention offers a lighting system with the advantages of high brightness, high efficiency, high luminous efficacy, long lifetimes, quick turn-on times, suitable color properties, environmental sustainability, and easy maintenance, which may allow for smart and flexible control over large area lighting systems with resulting savings in operating and maintenance costs.

This invention relates generally to a light panel light source shade in the form of a masking tape or sheet. Ideally the masks may be printed directly on a surface design layer for use with the light panel. The invention is for use in the field of decorative 5 lighting. The problem of the alternating bright and dark areas on an illuminated face of a pane of a light panel is that they produce an unpleasant mottled surface brightness around the perimeter or across a face of the pane of a light panel. A light pane light source shade is developed to produce a uniform intensity of light across the face of the light panel.