In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventor's summary information for this patent: "The present invention provides a very low profile luminaire adapted for use in grid ceiling systems, which preferably has a luminaire height of no greater than approximately two inches and which can be provided in heights of one inch or less. The very low profile of the luminaire of the invention reduces the space above a grid ceiling system occupied by the luminaire, or eliminates it altogether by allowing luminaires to be created for grid ceilings having a bottom to top height (thickness) no greater than the height of the grid ceiling T-bars. The luminaire's low profile results in a reduction in material required for the luminaire structure and packaging, and in a reduction in the weight of the luminaire. The low profile will also increase the number of luminaires that can be transported in a shipping container. These advantages will in turn reduce fuel consumption for transporting the luminaires on a per luminaire basis, and volume of disposal material at the luminaires' end of life.
"It is contemplated that the reduction in the weight of the luminaire will also reduce installation costs. For safety reasons, building codes normally require the use of overhead 'tie wires' for the installation of conventional troffers. The tie wires are intended to support the weight of the troffers. However, under most code provisions, tie wires would not be required if the fixture is less than a certain weight. The low profile luminaire of the invention can be made light enough to allow installation using only 'clips' to hold the fixture onto the T-bars of the grid ceiling, thus eliminating the need for tie wires.
"The present invention provides a low profile luminaire having a planar light source comprised of one or more planar organic light emitting diodes (OLEDs), which are flat light sources that can be very thin (in the range of 1 mm or less). The OLED light source is supported by a low profile OLED support structure that lies in a plane. The support structure, which supports the planar OLED light source substantially in the plane of the support structure, preferably has a maximum height of about two inches and preferably a height of about one inch or less. It also has perimeter dimensions that allow the luminaire to fit within and to be supported by the T-bar grid openings of a grid ceiling system. Electrical components for driving and controlling the OLED light source can be provided within the support structure or externally of this structure."
URL and more information on this patent, see: Ngai, Peter Y. Y.. Low Profile OLED Luminaire for Grid Ceilings. U.S. Patent Number 8485700, filed
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