A fluorescent light tube retrofit with light emitting diodes (LEDs) that evenly distribute light to avoid bright spots is disclosed. One LED lighting unit includes a tubular housing and a plurality of LED assemblies mounted about a circumference of the tubular housing. LEDs face inward from a mounting...http://www.google.de/patents/US20100172149?utm_source=gb-gplus-sharePatent US20100172149 - LIGHT DISTRIBUTION USING A LIGHT EMITTING DIODE ASSEMBLY
