In 1849, Joseph Plateau published a note about improvements for the Fantascope. He combined the stroboscopic disc with aspects of his Anorthoscope to create a 27 cm translucent disc (oiled paper on a cardboard frame) that was lit from behind and had a stroboscopic 4-slit black metal shutter disc in front. The pictures, 16 in Plateau's example, were designed with a 4 to 5 anamorphic width to compensate the deformation of the resulting image. The animation could be seen with both eyes by several people at the same time, with greatly improved image quality. A screen behind the translucent disc blocked the light, except for a cutout trapezoid area that corresponded with the space where the figures were visible at the proper position. A gear system for the rotation ensured that the image would appear in the right area. Plateau used the translucency of the disc to create light effects in the designs. One extant disc, made in collaboration with painter Jean Baptiste Madou, shows a demon's head blowing on a glowing coal. Plateau stated that the illusion could be advanced even further with an idea communicated to him by Charles Wheatstone: a combination of Fantascope and stereoscope. Plateau believed two copies of his improved Fantascope could be adapted to deliver stereoscopic images to Wheatstone's reflecting stereoscope. He thought the construction of a sequential set of stereoscopic image pairs would be more difficult. Wheatstone had suggested using photographs on paper of a solid object, for instance a statuette. Plateau concluded that for this purpose 16 plaster models could be made with 16 regular modifications. He believed such a project would take much time and careful effort, but would be well wort it because of the expected marvelous results. Unfortunately, the plan was never executed, possibly because Plateau became almost completely blind by this time. Eventually the idea was communicated to instrumentmaker Jules Duboscq, who since 1850 very successfully marketed a stereoscope with lenses in collaboration with David Brewster (he also sold Wheatstone's version with mirrors, became the French publisher for Plateau's Fantascope and offered a projector on wheels for phantasmagoria, among many other optical instruments).