GEORGES DEMENY PHONOSCOPE 1892
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Marey at the Station Physiologique, built the Photophone
for photographing, and the Phonoscope for
projecting. Again, even with celluloid available (and
used by them since 1888), Demeny used a glass disc which contained the
chronophotographs (between 18-24 around the circumference), and projected
them on the screen. This process is reminiscent of Muybridge's Zoopraxiscope,
and was actually an improvement on Anschutz's Electrotachyscope.
Demeny later this year patents the Phonoscope (without
Marey's involvement).
The Phonoscope was shown this year at the
Exposition Internationale de Photographie de Paris
and Demeny considered producing the machine for commercial
use. The discs were 42cm in diameter with his chronophotographs
placed around the circumference, typically eighteen of them.
When Demeny began his company for manufacturing the Phonoscope
(Société de Phonoscope), Marey withdrew completely
from his relationship with Demeny and fired him from Station
Physiologique. Demeny would create and build his own camera
he called the Biographe, with his 'Beater
Mechanism' which transferred the film.
Georges Demeny changed the name of the Phonoscope
to the Bioscope in 1895, began a business
partnership with Leon Gaumont to manufacture the Bioscope
(1895), and had Alfred Molteni make his projecting lanterns.
The Biographe had no future and was not produced
beyond 1896 however Gaumont did successfully exploit the beater
mechanism concept after Demeny's retirement in the early 20th
century.
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