Halogen Bulb
A defining entry in the Top 100 Tech. Sitting at number 77, Halogen Bulb earned its place through a combination of craft, context, and consensus among the twenty-four editors who maintain this list. The companions immediately above and below it on this ranking are worth reading in the same sitting.
Position in the list
About this entry
A defining entry in the Top 100 Tech. Sitting at number 77, Halogen Bulb earned its place through a combination of craft, context, and consensus among the twenty-four editors who maintain this list. The companions immediately above and below it on this ranking are worth reading in the same sitting. The editors’ note placed it here on the basis of three criteria: durability across re-reads (or re-watches, or re-plays), influence on the entries that came after it, and the degree to which it could only have been made by the person — or team — who made it.
In the comparative table maintained by the Tech desk, Halogen Bulb sits within a band of 74 – 80 that contains some of the most contested swaps of the year. Editors vote with arguments; a swap requires three editors and one written defense.
From Wikipedia
A halogen lamp is an incandescent lamp consisting of a tungsten filament sealed in a compact transparent envelope that is filled with a mixture of an inert gas and a small amount of a halogen, such as iodine or bromine. The combination of the halogen gas and the tungsten filament produces a halogen-cycle chemical reaction, which redeposits evaporated tungsten on the filament, increasing its life and maintaining the clarity of the envelope. This allows the filament to operate at a higher temperature than a standard incandescent lamp of similar power and operating life; this also produces light with higher luminous efficacy and color temperature. The small size of halogen lamps permits their use in compact optical systems for projectors and illumination. The small glass envelope may be enclosed in a much larger outer glass bulb, which has a lower temperature, protects the inner bulb from contamination, and makes the bulb mechanically more similar to a conventional lamp.
