"Every second, approximately 6,000 planar cross-sections of a 3-D volume are projected onto a spinning diffuser in the Perspecta volumetric 3-D display (Actuality Systems, Inc.). This is a 10" (25 cm)-diameter volume-filling image of an external beam radiation oncolgy image for brain cancer."Swept-volume displays work by dividing a 3d image into a series of sections which are projected onto a moving surface. The image changes as the surface rotates creating the appearance of a 3d image to the human eye. The effect is similar to frames in a move that the eye perceives as seamlessly streaming.
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