Samsung Electronics Co., Ltd.

Seoul National University

Kyookeun Lee

Wonjun Lee

Myongjo Choi

Kyusub Kwak

Jongchul Choi

Bonkon Koo

Jeonggeun Yun

Doyoun Kim

Harry Edward Milton

Jaewoo Ko

Jeongeun Yun

Byoungho Lee

Sangchul Jung

Jaeyun Jeong

Sangho Yoon

Jaeyeol Ryu

Chanhyung Yoo

Sunghwan Shin

Kiseung Bang

Minseok Chae

Jeongbong Bae

Janghoon Yoo

An augmented reality (AR) device including a variable focus lens of which a focal length may be changed by adjusting refractive power and adjusting the position of a focus adjustment region of the variable focus lens according to a direction of the user's view. The AR device may obtain an eye vector indicating a direction of the user's view using an eye tracker, adjust a refractive power of a first focus adjustment region of a first variable focus lens to change a focal length for displaying a virtual image, and complementarily adjust a refractive power of a second focus adjustment lens with respect to the adjusted refractive power of the first focus adjustment region.

Augmented reality device for adjusting focus region according to direction of user's view and operating method of the same

Provided is a waveguide-type display device including a waveguide, an input coupler provided on the waveguide and configured to transmit an image to travel into the waveguide, an output coupler provided on the waveguide and configured to output the image traveling in the waveguide to an outside of the waveguide, and a field-of-view (FOV) expander configured to output an image having an expanded FOV by deflecting and outputting the image output from the output coupler in a certain direction based on polarization characteristics of the image.

Waveguide-type display device

Provided is an augmented reality device including a variable focus lens, an eye tracking sensor configured to emit light to eyes of a user, receive the light reflected by the eyes of the user, and detect a plurality of feature points based on the light reflected by the eyes of the user, and at least one processor configured to obtain information with respect to eye relief, which is a distance between the eyes of the user and the variable focus lens, based on position information of the plurality of feature points detected by the eye tracking sensor, obtain information with respect to a gaze point at which gaze directions of the eyes of the user converge, and an interpupillary distance of the eyes of the user, based on the plurality of feature points, and determine a position of a focal region of the variable focus lens based on the information with respect to the eye relief, the gaze point, and the interpupillary distance.

Augmented reality device including variable focus lenses and operating method thereof

Provided are a device and method for correcting the vision of a user and performing calibration. A method, performed by an augmented reality device, of performing gaze tracking sensor calibration based on a gaze of a user includes outputting at least one first character in a preset size through a waveguide of the augmented reality device, obtaining at least one first input for the at least one first character, obtaining at least one piece of first gaze information detected through a gaze tracking sensor of the augmented reality device at a time point at which the at least one first input is obtained, comparing the at least one first character with the at least one first input, and determining a first refractive power to be a refractive power of the varifocal lens of the augmented reality device, based on a result of the comparing.

Device and method for correcting user's vision and performing calibration

Provided is a device for displaying augmented reality including an optical engine configured to output light of a virtual image, a waveguide configured to output light of the virtual image and transmit light of a real scene, a first lens part and a second lens part, and a processor, the first lens part being configured to tune a focus of the virtual image and including a first focus-tunable lens having a refractive power tunable by the processor and a fixed refractive lens having a refractive power, the second lens part being configured to compensate distortion of the real scene and including a second focus-tunable lens having a refractive power that is tunable by the processor, and the processor being further configured to determine the first refractive power based on vision information of the user, attribute depth information of the virtual image, and fixed refractive power of the fixed refractive lens.

Device and method for displaying augmented reality

A method, performed by an augmented reality (AR) device including a vision correction lens, of detecting a gaze of a user is provided. The method includes obtaining lens characteristic information about the vision correction lens arranged to overlap a light guide plate in a gaze direction of the user, emitting light for gaze tracking toward a light reflector through a light emitter, wherein the emitted light is reflected by the light reflector and then directed to an eye of the user, receiving a light reflected by the eye of the user through a light receiver, obtaining an eye image of the user based on the light received, adjusting the eye image of the user based on the lens characteristic information about the vision correction lens, and obtaining gaze information based on the adjusted eye image.

Augmented reality device and method for detecting gaze of user

A display device includes a first light source configured to emit first pixel light in each of which lights of a plurality of different wavelengths are mixed with one another, a second light source configured to emit a plurality of second pixel lights in each of which lights of a plurality of different wavelengths are mixed with one another, and an optical scanner configured to output an image including the plurality of first pixel lights and the plurality of second pixel lights to an external space by sequentially changing travelling paths of the plurality of first pixel lights and the plurality of second pixel lights.

Display device and method of operating the same

An image display apparatus including a first waveguide, a second waveguide, a focus tunable lens positioned between the first waveguide and the second waveguide, and a display engine configured to control a focal length of the focus tunable lens and control the display engine to output first light forming the first virtual image and second light forming the second virtual image, wherein at least a portion of the first light is diffracted from the first waveguide and at least a portion of the second light diffracted from the second waveguide is incident on the first waveguide through the focus tunable lens.

Apparatus and method for displaying image and computer program thereof

Provided is an augmented reality device including a display element configured to generate a first image, an optical coupler including a first surface through which the first image is input and a second surface opposite the first surface and configured to output light that is input through the first surface to the second surface and output light that is input through the second surface to the first surface, a reflective polarizer provided on the side of the second surface of the optical coupler and configured to reflect light with a first polarization and transmit light with a second polarization different from the first polarization, and a polarization selective variable focus lens provided in a traveling path of the light with the first polarization reflected by the reflective polarizer and having variable refractive power with respect to the light with the first polarization.

Augmented reality device including reflective polarizer and wearable device including the same

An electronic device including an eye tracking sensor configured to detect viewing direction of eye of a user; a camera; a tilting unit configured to adjust a direction of the camera; a memory; and a processor configured to obtain information about a gaze point of the user; determine a region of interest (ROI) based on the information about the gaze point; obtain two or more images including the ROI at different tilt angles; and determine depth information of the ROI by using the obtained two or more images.

Electronic device and operation method thereof

Provided are an optical device and a method of outputting light using the optical device. The optical device includes a waveguide, a first diffraction grating receiving at least a portion of light incident on the waveguide and a second diffraction grating receiving a light diffracted from the first diffraction grating, wherein the first diffraction grating and the second diffraction grating are provided in or on the waveguide, the light diffracted from the first diffraction grating is diffracted, in three-dimensional directions, from the second diffraction grating, and at least a portion of the light diffracted in the three-dimensional directions is output to an outside of the waveguide.

Optical device and method of outputting light by using the same

An electronic device for displaying augmented reality (AR) includes: an optical engine configured to output light of virtual image; a waveguide from which the light of the virtual image is output and through which light of a real scene is transmitted; an optical shutter configured to transmit or block the light of the real scene; a focus tunable lens configured to adjust a focal length for the light of the virtual image output from the waveguide; and one or more processors configured to, during a first period, control the optical shutter to block at least part of a first light of the real scene, and control the focus tunable lens to have a first focal length, and during a second period, control the optical shutter to transmit a second light of the real scene, and control the focus tunable lens to have a second focal length different from the first focal length.

Growing community of inventors

Suwon-si, South Korea

Kyookeun Lee