How Is a Light Bulb Made?
Ever since the light bulb was invented by Thomas Edison, it has proved to be an invaluable part of everyday life. The incandescent light bulb has brightened up the night all over the world, and yet this simple invention may still seem too technical for some to understand. Below is a brief explanation of the process by which a light bulb is made. It is a relatively simple process which involves attaching filaments to terminals and covering them with a blown glass bulb.
Screw or Bayonet Socket and Filaments
The metal screw or bayonet end of the bulb is stamped out and the contacts are attached on the inside to receive the filament ends. The filament is now ready to be fitted and fixed into the metal screw or bayoneted end of the bulb. A tube of glass is fitted with the insulated filament wire. This is attached to the interior of the copper end. Then, the wires and attachments to the filaments are attached to the alternate terminals in the screw casing or in the end of the casing in preparation to be passed along to the next section of the assembly process.
Bulb
Next a supply of liquid glass is blown by machine into a bulb which is then passed along to a quality assurance post along the assembly line where a human worker will inspect each bulb to see if there are any impurities or bubbles in the glass bulb. If there are, the bulb is discarded and the glass again melted and blown again. The bulb is then fitted onto the previously prepared filament and glued onto the metal contact end ready for testing. Once the quality is assured, the glass is stamped with the company name of the manufacturer, and shipped to warehouses for distribution.
Tags: bulb there, glass bulb, light bulb, Light Bulb, Light Bulb Made, metal screw, passed along