True three-dimensional display system

Claim 2

A DISPLAY SCREEN HAVING A SURFACE GENERATED BY A PLURALITY OF QUARTER ELLIPSES OF UNIFORM ELLIPTICITY HAVING A COMMON MAJOR AXIS AND A PLURALITY OF MINOR AXES, SAID MINOR AXES OF SAID ELLIPSES LYING IN A SINGLE PLANE, AND SAID SURFACE HAVING AS AN OUTER BOUNDARY AT LEAST ONE SECTION OF A SPIRAL FORMED BY THE LOCUS OF THE INTERSECTION OF THE QUARTER ELLIPSES WITH SAID PLANE.

Claim 3

A THREE-DIMENSIONAL DISPLAY COMPRISING, AN INFORMATION SYSTEM FOR OBTAINING A FIRST SIGNAL INDICATIVE OF THE PRESENCE OF OBJECTS TO BE DISPLAYED, SAID INFORMATION SYSTEM INCLUDING AN ANTENNA TO GATHER THE INFORMATION AND MEANS TO VARY THE AZIMUTH AND ELEVATION ANGLE OF SAID ANTENNA IN A PREDETERMINED MANNER, A LIGHT SENSITIVE SCREEN HAVING A SURFACE GENERATED BY A PLURALITY OF QUARTER CIRCLES LOCATED BETWEEN A PLANE AND A LINE PERPENDICULAR TO SAID PLANE, SAID QUARTER CIRCLES HAVING A CENTER POINT LOCATED AT THE POINT OF INTERSECTION OF SAID LINE WITH SAID PLANE, SAID SURFACE HAVING AS AN OUTER BOUNDARY AT LEAST ONE SECTION OF A SPIRAL FORMEDBY THE LOCUS OF INTERSECTIONS OF SAID QUARTER CIRCLES WITH SAID PLANE, A LIGHT SOURCE, FIRST MEANS TO MODULATE SAID LIGHT SOURCE IN RESPONSE TO SAID FIRST SIGNAL FROM SAID INFORMATION SYSTEM TO PRODUCE A LIGHT BEAM, A ROTATABLE AND TITLTABLE MIRROR TO PROJECT SAID LIGHT BEAM ON TO SAID SCREEN, A LENS SYSTEM POSITIONED BETWEEN SAID LIGHT SOURCE AND SAID MIRROR TO FOCUS SAID LIGHT BEAM ON SAID MIRROR, SECOND MEANS RESPONSIVE TO THE ELEVATION ANGLE OF SAID ANTENNA TO TILT SAID MIRROR IN SYNCHRONISM WITH SAID ANTENNA, THIRD MEANS RESPONSIVE TO THE AZIMUTH ANGLE OF SAID ANTENNA TO ROTATE SAID MIRROR IN SYNCHRONISM WITH SAI ANTENNA AND MEANS TO ROTATE SAID SCREEN AT A RATE RESPONSIVE TO THE RATE AT WHICH POSITIONAL DATA IS IMPRESSED ON SAID SCREEN TO FORM APPARENTLY PERSISTING IMAGES WITHIN A VOLUME SWEPT THROUGH BY SAID SCREEN DURING ROTATION.

Claim 4

A THREE-DIMENSIONAL DISPLAY COMPRISING, AN INFORMATION SYSTEM FOR OBTAINING A FIRST SIGNAL INDICATIVE OF THE PRESENCE OF OBJECTS TO BE DISPLAYED, SAID INFORMATION SYSTEM INCLUDING AN ANTENNA TO GATHER THE INFORMATION AND MEANS TO VARY THE AZIMUTH AND ELEVATION ANGLE OF SAID ANTENNA IN A PREDETERMINED MANNER, A LIGHT SENSITIVE SCREEN HAVING A SURFACE GENERATED BY A PLURALITY OF QUARTER CIRCLES LOCATED BETWEEN A PLANE AND A LINE PERPENDICULAR TO SAID PLANE, SAID QUARTER CIRCLES HAVING A CENTER POINT LOCATED AT THE POINT OF INTERSECTION OF SAID LINE WITH SAID PLANE, SAID SURFACE HAVING AS AN OUTER BOUNDARY AT LEAST ONE SECTION OF A SPIRAL FORMEDBY THE LOCUS OF INTERSECTIONS OF SAID QUARTER CIRCLES WITH SAID PLANE, A LIGHT SOURCE, FIRST MEANS TO MODULATE SAID LIGHT SOURCE IN RESPONSE TO SAID FIRST SIGNAL FROM SAID INFORMATION SYSTEM TO PRODUCE A LIGHT BEAM, A ROTATABLE AND TITLTABLE MIRROR TO PROJECT SAID LIGHT BEAM ON TO SAID SCREEN, A LENS SYSTEM POSITIONED BETWEEN SAID LIGHT SOURCE AND SAID MIRROR TO FOCUS SAID LIGHT BEAM ON SAID MIRROR, SECOND MEANS RESPONSIVE TO THE ELEVATION ANGLE OF SAID ANTENNA TO TILT SAID MIRROR IN SYNCHRONISM WITH SAID ANTENNA, THIRD MEANS RESPONSIVE TO THE AZIMUTH ANGLE OF SAID ANTENNA TO ROTATE SAID MIRROR IN SYNCHRONISM WITH SAI ANTENNA AND MEANS TO ROTATE SAID SCREEN AT A RATE RESPONSIVE TO THE RATE AT WHICH POSITIONAL DATA IS IMPRESSED ON SAID SCREEN TO FORM APPARENTLY PERSISTING IMAGES WITHIN A VOLUME SWEPT THROUGH BY SAID SCREEN DURING ROTATION.