True 3D Display Technology Demonstrated in Japan

By creating plasma in open air with lasers, Japanese scientists are working on a true 3D display.

The Japanese National Institute of Advanced Industrial Science and Technology (AIST) announced an exciting breakthrough in optoelectronics — a working three dimensional display. The display does not rely on any sort of optical illusion or disorientation. Instead, infrared lasers are aligned to converge and create small amounts of plasma. The plasma acts as a floating "dot" on top of the laser grid.

Daily Tech - True 3D Display Technology Demonstrated in Japan

Most of the 3D displays reported until now draw pseudo-3D images on 2D planes by utilizing the human binocular disparity. However, many problems occur, e.g., the limitation of the visual field, and the physiological displeasure due to the misidentification of virtual images.

The device we have developed utilizes the plasma emission phenomenon near the focal point of focused laser light. By controlling the position of the focal point in the direction of the x-, y-, and z-axes, we have succeeded in displaying real 3D-images [picture] constructed by dot arrays in air (3D-space) .

AIST - Three Dimensional Images in the Air