专利名称：PROJECTOR WITH SPHERICAL SCREEN发明人：PIERRE NICOLAS申请号：AU6360086申请日：19861008公开号：AU601952B2公开日：19900927
摘要：A screen-forming sphere is made of a front translucent half-sphere and of arear half-sphere which is opaque except in a central region. An image projector is situatedbehind the screen and has a front face comprising a platen mounted in front of the opticof the image projector. The platen contains a rotary polarization filter rotated by a firstmotor. The filter is occultable by a rotary flap mounted on spindles rigidly connected totwo rotary vertically aligned disc members which rotate in synchronism under action of asecond motor.
申请人：PIERRE NICOLAS
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