DEVICE FOR CREATING DYNAMIC HOLOGRAPHIC IMAGES IN SPACE Russian patent published in 2021 - IPC G09F19/10 G02B30/56 

FIELD: advertising and information technologies.

SUBSTANCE: invention relates to the field of advertising and information technologies. The device includes a light source, a laser projector, which includes a unit for forming the base of a virtual screen in air, a unit of holographic plates, a logic unit and a control computer. The light source is connected to the laser projector through an optical splitter and contains controlled drives. The block of holographic plates is a multilayer optically transparent liquid crystal matrix consisting of n separate optically transparent layers. A separate layer of an optically transparent liquid crystal matrix includes two outer optically transparent plates. Optically transparent conductive paths made of single-layer graphene are used as optically transparent conductive paths. They are connected to external current leads and point liquid crystal segments of a separate layer of an optically transparent liquid crystal matrix. There is a thin film of a metamaterial with a negative refractive index on the front surfaces of each separate layer of an optically transparent liquid crystal matrix, on the outside of two optical plates of each layer. An image hologram and a hologram of a contrast virtual screen are formed in the block of holographic plates at different times. The image hologram is focused upon the contrast virtual screen, and the switching of an image hologram to a hologram of a contrast virtual screen in the block of holographic plates is carried out by a logic unit according to the signals of the control computer taking into account the physiological parameters of the inertia of human vision.

EFFECT: invention improves the clarity and contrast of the image.

1 cl, 3 dwg