Abstract: Dynamic heat sink that uses a thermoelectric cooler, such as a Peltier Junction, to move the heat at a LED junction to the other side of the cooling chip. This would allow the LED to run with more current in a much smaller area than a passive metal heat sink without burning out the junctions. The Present Invention would therefore permit a compact light device comprising a plurality of LED's to be constructed. Such a light device would be competitive with standard fluorescent bulbs by outputting light of equivalent brightness with less power dissipation.

Abstract: A magnetic holder for letters appearing on a wall sign. A typical application would be for signs requiring halo glow lighting. With such a sign, the letter itself is unlit, and the wall is lit by soft lighting from behind the letter. Lighting could be accomplished with the use of a plurality of light emitting diodes (LED). The Present Invention comprises a mounting plate that is securely attached to the wall. The LED's, lighting circuitry, and magnets are securely fastened to the mounting plate. The letter is a hollow magnetic channel letter that is slightly larger than the mounting plate. The letter is positioned over the mounting plate, and is held in position by the magnets. The letter may be manually positioned on the plate for proper alignment.

Abstract: The present invention replaces a standard size halogen tungsten lamp spotlight or floodlight with a much cooler LED lamp that also fits into existing housings. However, the LED's still need to be cooled. The Present Invention mounts up to three LED's into a special reflector with a plurality of specially designed heat sinking fins arranged in a star configuration. Peltier junctions may also be used to further direct heat to the fins.