THREE-DIMENSIONAL AERIAL IMAGING DEVICE BASED ON STRONG-LASER AIR IONIZATION

摘要

Disclosed is a three-dimensional aerial imaging device based on strong-laser air ionization, the device comprising a pulsed light source (1), an optical shutter (3), a galvanometer assembly (6), a lens assembly (7) and a controller (9), wherein a pulsed beam generated by the pulsed light source (1) is emitted out through a light outlet; the optical shutter (3) is arranged at the light outlet and used for opening or closing the light outlet; the galvanometer assembly (6) is arranged in an irradiation path of the pulsed beam and used for changing the irradiation direction of the pulsed beam in a horizontal or vertical direction; the lens assembly (7) is used for focusing a pulsed beam reflected by the galvanometer assembly (6) such that air is ionized at a position corresponding to an imaging area to form a holographic real image (8); and the controller (9) is in signal connection with the pulsed light source (1) and the optical shutter (3), and adjusts the brightness of an ionization light-emitting point by means of controlling the energy of a pulse that is output by the pulsed light source (1) and the closing of the optical shutter (3).