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Louis Jules Duboscq (March 5, 1817 – September 24, 1886) was a French instrument maker, inventor, and pioneering photographer. He was known in his time, and is remembered today, for the high quality of his optical instruments.


Life and work

Duboscq was born at Villaines-sous-Bois (
Seine-et-Oise Seine-et-Oise () is a former department of France, which encompassed the western, northern and southern parts of the metropolitan area of Paris. Its prefecture was Versailles and its administrative number was 78. Seine-et-Oise was disbanded in ...
) in 1817. He was apprenticed in 1834 to Jean-Baptiste-François Soleil (1798–1878), a prominent instrument maker, and he married one of Soleil's daughters, Rosalie Jeanne Josephine, in 1839. Among the instruments Duboscq built were a
stereoscope A stereoscope is a device for viewing a stereoscopy, stereoscopic pair of separate images, depicting left-eye and right-eye views of the same scene, as a single three-dimensional image. A typical stereoscope provides each eye with a lens that ...
(marketing
David Brewster Sir David Brewster Knight of the Royal Guelphic Order, KH President of the Royal Society of Edinburgh, PRSE Fellow of the Royal Society of London, FRS Fellow of the Society of Antiquaries of Scotland, FSA Scot Fellow of the Scottish Society of ...
's lenticular stereoscope), a colorimeter, a
polarimeter A polarimeter is a scientific instrument used to measure optical rotation: the angle of rotation caused by passing linearly polarized light through an Optical activity, optically active substance. Some chemical substances are optically active, ...
, a
heliostat A heliostat () is a device that reflects sunlight toward a target, turning to compensate for the Sun's apparent motion. The reflector is usually a plane mirror. The target may be a physical object, distant from the heliostat, or a direct ...
and a saccharimeter.


See also

* Colorimetry (chemical method)


References


Further reading

* *


External links


Louis Jules Duboscq
Image:Duboscq colorimeter 1870.jpg , A Duboscq colorimeter Image:Duboscq Jules Still life with skull.jpg , Duboscq"s ''Still life with skull'' Image:Duboscq lamp.jpg , A Duboscq lamp {{DEFAULTSORT:Duboscq, Jules 19th-century French inventors Pioneers of photography 19th-century French photographers 1817 births 1886 deaths Photographers from Paris