Posted 2 years ago
Before flash bulbs, flash photography relied on openly burning powder - usually containing magnesium. In 1893, Chauffour made an ancestor of the flash bulb; this had magnesium ribbon in a glass bulb, and was fired electrically- but this had been designed for underwater photography. The first recognisable flash bulb for general use was invented in 1925 by Vierkötter - using flash powder in an evacuated light bulb, fired by a lamp filament. Later that year, Vierkötter made a low-pressure-filled bulb. There are conflicting reports of the first commercial bulbs - made either by General Electric in the US, c.1927, or the Vacublitz alumimium foil bulbs made by Ostermeier in Germany, c.1929. The first wire-filled bulbs are reported to have been made by Philips in the Netherlands, in 1934.