![]() ![]() ![]() The manufacture of a LED bulb starts with a substratum. There are specialist machines for manufacturing LED bulbs. There are two types: SMD and COB.ĭrivers: we are talking about the power source for the bulb. In the interior of a LED bulb you will find the following parts:Ĭhips: these regulate how a LED bulb works when it comes to transforming electricity into light. There are different types of base so they can be screwed into the lamp. They are usually made of ceramics or aluminium and their function is to dissipate the heat to increase the useful life of the bulb.īase: this houses the driver. In some models the diffusor is replaced by a lens that directs the light from the chip.ĭissipater: this is the part that holds the LED bulb's chip. On the exterior of a LED bulb you will find:Ī diffuser: this gives an angle of diffusion to the light. Isamu Akasaki, Hiroshi Amano and Shuji Nakamura, who in 1997 invented the LED (Light Emiting Diode) lamp. ![]() Irving Langmuir, who in 1913 created neon lights by introducing gases into the bulb. Joseph Wilson Swan, who in 1879 presented his design for an evacuated glass bulb with platinum cables and a carbonised thread. ![]() Henry Woodward and Matthew Evans, who in 1875 officially patented the first light bulb. Warren de la Rue, who in 1840 made a platinum filament light up inside a vacuum valve. Humphry Davy, who in 1809, who place a narrow strip of carbon between the two poles of a battery to generate light. However, we should mention those who contributed to the invention of the light bulb: On 27 January 1880, Edison patented the light bulb as we know it and profoundly changed society and the way we live. Edison had been able to make the manufacturing process simpler and cheaper so its sale to the public could be profitable, and ultimately feasible. That bulb was working for two continuously for two days. The light bulb is the result of research by a number of scientists and inventors, which reached its peak on 21 October 1879, when Thomas Alva Edison presented the first light bulb in his laboratory in Menlo Park (New Jersey, USA). ![]()
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