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Believe it or not! Japanese scientists have recently created touchable holograms, or three dimensional virtual objects that can be sensed by the human hand.
They have developed a Fairy Lights system that can fire high-frequency laser pulses traveling at a millionth of a billionth of a second, made possible through femtosecond laser technology. Moreover, the pulses are responsive to human touch such that the pixels of the hologram can be manipulated in mid-air any point in the air.
Combined with mirrors and cameras, the rapid, high-intensity lasers direct tiny light points called voxels in certain directions to produce images of up to 200,000 dots per second of resolution.
Dr. Ochiai, a media artist who formerly had a one-man band and a voracious user of Microsoft’s 3D Moviemaker as a child, said, that there are practical benefits if humans can interact with a bigger laser in a bigger space, such as for three-dimensional communication in medicine, construction, and entertainment.
Previous attempts at touchable or interactive hologram failed. While they were successfully demonstrated, the laser beams burned human skin when they touched.
Scientists say that a further innovation can make it possible to produce a computer keyboard with light beamed onto human laps, allow video chats featuring a person’s virtual touch or control the fragments of virtual reality games with the sense of touch.