In January 1879, his laboratory in Menlo Park, New Jersey, Thomas Alva Edison - one of the most famous inventors of all time, has produced incandescent light bulb first. Lights glow when current passes through thin platinum filament placed in a vacuum glass ball to antioxidant. Then, light fires only in a few hours. The first effective lamp filament is used carbon fiber impregnated fabric. Noon October 21, 1879, the first model of the Edison lamp burned for 45 hours. The day after Edison started new experiments using the cover of religion do impregnated carbon filament. On New Year's Eve December 31, 1879 Edison publicly expressed his invention at Menlo Park, New Jersey. 1880, dated 17 January, patent No. 223.898 is granted to Edison for this bulb. It is the result of the continuous improvement of Edison made until 1879. Although more than hundred years this light bulb still like the light bulb is lighting the house today. Lamp of the light bulb of the 19th century is still the same as those used today sockets (HI1.6a). That is one of the most important characteristics of the lamp and electrical systems of Edison. The sticker on the lamp with the inscription (see picture HI1.6b), "New Type Edison Lamp. Patented Jan. 27, 1880 OTHER PATENT EDISON. "Edison invented the incandescent and history also witnessed a series of outstanding innovations and new lighting technologies.
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