Projecting apparatus with spherical screen, more...

Details Projecting apparatus with spherical screen, more... Projecting apparatus with spherical screen, more...

G - Physics

09

F

88/72

G09F 19/18 (2006.01)

Patent

CA 1278712

ABSTRACT OF THE DISCLOSURE A screen-forming sphere is made of a front transparent-translucent half-sphere and of a rear half-sphere which is opaque except in a central region. An image projector is situated behind the screen and has a front face comprising a platen mounted in front of the optic means of the image projector. The platen contains a rotary filter rotated by a first motor. The filter is occultable by a rotary flap describing an imaginary circle since the rotary flap is mounted on spindles rigidly connected to two rotary vertically aligned disc means which rotate in synchronism under action of a second motor.

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