Vintage Electronics Blogsphere

Globe Tube

Why is it that .......? Ultra Violet

the lights seem to be only available in sizes as fluorescent lamps and infra-red are Football / style bulb? It's just a random observation, but it seems that way. The lights require different presentations for work or is it just convention resulting from the use of common applications? Or just not at all, but an observation wrong?

It is a correct observation! UV is mainly produced by ionization of mercury vapor between the two electrodes. Since the ionization path is a line right, it is logical to place the electrodes distant and join them in a glass tube. infrared lamps, moreover, are very similar to bulbs incandescent, and work along the same lines. It is also manufactured as bulbs. Its shape makes sense for the way they are accustomed. For example, the UV lamps used in tanning beds and the fact that both and shine in all directions is perfect for the job. Infrared lamps, expressed second a "focus" Infrared which makes them ideal for underfloor heating (eg, eggs in the incubator)

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