Magic lantern slide

Manufacturer	Charles Baker
Name	Beale’s Choreutoscope
Place	Londres (Great Britain)
Date	ca. 1870
Register	01111

Glass slide for magic lantern of the choreutoscope type, made by the English firm Charles Baker, manufacturers of optical equipment and magic lanterns. The choreutoscope was invented by Lionel Smith Beale in around 1866 for projecting animated drawings with the magic lantern, based on the persistence of vision principle. It consisted of a glass slide with six drawings painted on a black background, representing different phases of a movement. This slide was mounted on a Maltese cross mechanism, which made it move intermittently. A shutter covered the window when the slide moved, but when it remained motionless the shutter disappeared and let the ray of light from the lantern pass through, projecting the image onto the screen. The slide with the drawings could be replaced with other slides. The choreutoscope was the first pre-cinema device to use intermittent motion for image projection. This system was later used by the first cameras and film projectors for the movement of the film.

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