Volumetric display technology is an attempt at producing 3D images to viewers without the need for special viewing aids such as glasses. Even though the concept was first postulated in 1912, the technology is still under development and is accessible to only certain sectors such as medical, defense, and R&D. This is partly due to the several drawbacks associated with the technology, with the largest one being that they require the user to remain at fixed location relative to the display. Thus, the images change with different viewing angles, as the viewer moves around the display. Another downside of volumetric displays is that the image produced does not exhibit occlusion and opacity, thereby causing the 3D images to appear less realistic to the viewers. This display technology relies a lot on the quality and stability of the projection medium.
The volumetric display market has been segmented based on product type into swept-volume displays and static volume displays. In swept-volume displays, a series of slices of 3D objects are fused into a single 3D image. On the other hand, in static volume displays, the image is created with no macroscopic moving parts in the image volume. On the basis of parent technology used, the market has been segmented into autostereoscopic and automultiscopic. The geographical segmentation comprises of Americas, Europe, APAC, and ROW. Few of the prominent players in the volumetric displays market are Light Field Corporation, 3DIcon, 3D Technology Laboratories, Sharp Electronics, Teleportec, Actuality Systems, Ethereal Technologies, LightSpace Technologies, Zebra Imaging, Felix 3D, Voxiebox, Holoverse, Holografika, Custom Technologies.