Japanese researchers at Aerial Burton have developed new technology that can project text and images in the sky without using a screen.
According to DigInfo:
"The images are constructed by firing a 1kHz infrared pulse laser into a 3D scanner, which reflects and focuses the pulses of the laser to specific points in the air. The molecules at that point are ionized, and the energy is released as photons."
The company thinks that the device could be used in emergency situations to relay information. Or maybe we can just use it to summon Batman?