An old Victorian engraving of Duboscq’s electric lantern and regulator. It is from a book of the 1890s on discoveries and inventions during the 1800s. An image is shown being projected onto a screen(left). The regulator for maintaining the light level is at the bottom of the lantern (right). Charcoal produced a brighter light than coke, but that had to take place in a vacuum to avoid ignition. Louis Jules Duboscq (1817–1886) was a French instrument maker, inventor, and pioneering photographer. He made projection arc lamps with Léon Foucault.
An old Victorian engraving of Duboscq’s electric lantern and regulator. It is from a book of the 1890s on discoveries and inventions during the 1800s. An image is shown being projected onto a screen(left). The regulator for maintaining the light level is at the bottom of the lantern (right). Charcoal produced a brighter light than coke, but that had to take place in a vacuum to avoid ignition. Louis Jules Duboscq (1817–1886) was a French instrument maker, inventor, and pioneering photographer. He made high quality optical instruments. Louis Duboscq was responsible for a number of progressive steps in the field of photography, among them the construction of automatic projection arc lamps with Léon Foucault in 1849, the ‘polyconograph’ in 1861 and construction of an apparatus for enlarging by electric light in 1861.
Size: 3543px × 2851px
Location: France
Photo credit: © M&N / Alamy / Afripics
License: Licensed
Model Released: No
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