Abstract: The disclosure relates to augmented reality devices based on a curved waveguide. An augmented reality device is provided. The augmented reality device includes a projection system to project an undistorted image, an input optical compensator located on the path of light rays out-coupled from the projection system, a curved waveguide comprising an input diffractive optical element and an output diffractive optical element. The output diffractive optical element performs the function of an output optical compensator that converts the light beams of a distorted image at the output of the waveguide into parallel light beams to output an undistorted image. Augmented reality glasses comprising an augmented reality device are also proposed. There is provided the ability to project a virtual image without aberrations, distortions and doubling of the image.

Abstract: The disclosure relates to augmented reality devices, and more particularly, to augmented reality glasses and methods for operating the same. An augmented reality display device is provided. The augmented reality display device includes a projection system, an optical compensator positioned after the projection system, and a flexible waveguide. The flexible waveguide can change its curvature and comprises an input diffraction grating and an output diffraction grating. The optical compensator is configured to introduce pre-distortion to the image and optically zoom the image received from the projection system, the pre-distortion in the image and optical zoom of the image being opposite to those introduced by the flexible waveguide to the undistorted image in accordance with chosen radius of the flexible waveguide. Flexible diffraction grating distorts the pre-distorted image. The output diffraction grating outputs undistorted image to a user's eyes.

Abstract: The disclosure relates to augmented reality devices and methods for operating such devices. A waveguide with a diffractive optical elements-based architecture for an augmented reality device is provided. The waveguide includes a light in-coupling zone, a light expanding zone, and a light out-coupling zone. Each zone includes its own set of diffractive optical elements performing the light in-couple, light expand and light out-couple function. There are further provided an augmented reality display device and augmented reality glasses based on the waveguide with the diffractive optical elements-based architecture.

Abstract: A method and systems for simultaneous recording of superimposed holographic gratings for augmented reality devices are provided.

Abstract: Provided are a compound lens and a display device including the same. The compound lens may improve image quality by providing a higher resolution in a central image region and a lower resolution in a peripheral image region. The compound lens includes a central lens portion and at least one peripheral lens portion, the at least one peripheral lens portion surrounds the central lens portion, the central lens portion has a first focal length, the at least one peripheral lens portion has a second focal length, and the first focal length is greater than the second focal length.

Abstract: An imaging system is provided. The imaging system includes a display including a first display half screen and a second display half screen, a retroreflective device provided on the display, a first beam splitter facing the first display half screen, a second beam splitter facing the second display half screen, a first optical shutter located on a surface of the first beam splitter, and a second optical shutter located on a surface of the second beam splitter.

Abstract: A holographic see-through optical device, a stereoscopic imaging system including the same, and a multimedia head mounted system are provided. The holographic see-through optical device includes a micro display; a relay optical system, which relays an image generated by the micro display; at least one waveguide comprising at least two portions having different thicknesses or different refractive indexes; at least one first holographic optical element, which is arranged at one of the two portions; and at least one second holographic optical element, which is arranged at the other one of the two portions.

Abstract: Provided are a compound lens and a display device including the same. The compound lens may improve image quality by providing a higher resolution in a central image region and a lower resolution in a peripheral image region. The compound lens includes a central lens portion and at least one peripheral lens portion, the at least one peripheral lens portion surrounds the central lens portion, the central lens portion has a first focal length, the at least one peripheral lens portion has a second focal length, and the first focal length is greater than the second focal length.

Abstract: An imaging system is provided. The imaging system includes a display including a first display half screen and a second display half screen, a retroreflective device provided on the display, a first beam splitter facing the first display half screen, a second beam splitter facing the second display half screen, a first optical shutter located on a surface of the first beam splitter, and a second optical shutter located on a surface of the second beam splitter.

Abstract: A head mounted display includes: a display configured to display an image; a shutter configured to block light incident on an eye; a controller configured to control the display to display a left eye image and a right eye image using half or more of a region of the display in a horizontal direction and to control the shutter based on the image displayed on the display; and a lens configured to focus light output from the display such that the left eye image and the right eye image displayed on the display are viewed by a left eye and a right eye respectively.

Abstract: A holographic see-through optical device, a stereoscopic imaging system including the same, and a multimedia head mounted system are provided. The holographic see-through optical device includes a micro display; a relay optical system, which relays an image generated by the micro display; at least one waveguide comprising at least two portions having different thicknesses or different refractive indexes; at least one first holographic optical element, which is arranged at one of the two portions; and at least one second holographic optical element, which is arranged at the other one of the two portions.