FIELD: augmented reality.
SUBSTANCE: invention relates to augmented reality devices based on a curved waveguide. The augmented reality device contains a projection system for projecting an undistorted image; an introductory optical compensator located in the path of light rays emanating from the projection system; a curved waveguide containing an introductory diffraction optical element and an output diffraction optical element. The output diffraction optical element with a variable period of the diffraction grating performs the function of an output optical compensator that converts the radiation beams of a distorted image at the output of the waveguide into parallel radiation beams for the output of an undistorted image.
EFFECT: possibility of projecting a virtual image without aberrations, distortions and image doubling.
18 cl, 8 dwg
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Authors
Dates
2022-09-26—Published
2021-12-13—Filed