FIELD: physics.
SUBSTANCE: device for active directional projection contains a flat screen for displaying the information image. The device for active directional projection also comprises Frenel lens mounted near the flat screen and a set of light sources arranged as a matrix in the focal plane of the lens. Also the device contains photodetectors installed in combination with each radiation source.
EFFECT: providing the possibility of projecting dynamically changing information in the direction of an approaching means only if it is detected.
12 cl, 6 dwg
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