公开(公告)号：EP4350417A1

公开(公告)日：2024-04-10

申请号：EP22837876.6

申请日：2022-06-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： LEE, Kyookeun ,  MILTON, Harry Edward ,  SHIN, Sunghwan ,  KOO, Bonkon ,  LEE, Seungjae

IPC: G02B27/01 ,  G02B27/00 ,  G06T19/00 ,  A61B3/032 ,  A61B3/00

Abstract: Provided is a method, performed by an augmented reality (AR) device, of measuring a user's vision. The method includes obtaining a background image including an image of at least one physical object by capturing a front region of the AR device by using an outward facing camera included in the AR device, identifying an edge of the image of the at least one physical object in the background image, determining a first region for measuring the user's vision on the background image based on the identified edge, determining a second region corresponding to the determined first region on a display included in the AR device, outputting a virtual object for measuring the user's vision to the determined second region, obtaining a user input signal for vision measurement after outputting the virtual object, and calculating a vision prescription value of a user based on the obtained user input signal.

公开(公告)号：EP4338656A1

公开(公告)日：2024-03-20

申请号：EP22849831.7

申请日：2022-07-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： LEE, Kyookeun ,  MILTON, Harry Edward ,  LEE, Seungjae

IPC: A61B3/028 ,  A61B3/04 ,  A61B3/036 ,  A61B3/113 ,  A61B3/00

Abstract: Provided are an apparatus and method for measuring a visual acuity (VA) by using a focus-tunable lens. The apparatus includes a display engine, an image combiner, a focus-tunable lens provided on a path of the light guided by the image combiner, an input device, and a processor configured to control the focus-tunable lens to assign different first and second optical powers to first and second lens regions, respectively, on a lens surface of the focus-tunable lens, control the display engine to display a VA measuring image through first and second output regions of the image combiner, control the input device to receive a user's input with respect to the VA measuring image, specify one optical power of the first and second optical powers based on the user's input, and determine a VA of a user based on the specified optical power.

公开(公告)号：EP4171028A1

公开(公告)日：2023-04-26

申请号：EP21837623.4

申请日：2021-06-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： SHIN, Sunghwan ,  KO, Jaewoo ,  KOO, Bonkon ,  KIM, Doyoun ,  YOON, Sangho ,  LEE, Kyookeun

IPC: H04N13/327 ,  H04N13/322 ,  H04N13/383 ,  G06T7/80 ,  G06T19/00

Abstract: 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.

公开(公告)号：EP3914959A1

公开(公告)日：2021-12-01

申请号：EP20835310.2

申请日：2020-06-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： CHOI, Myongjo ,  KWAK, Kyusub ,  YUN, Jeonggeun ,  LEE, Kyookeun ,  LEE, Wonjun ,  CHOI, Jongchul

IPC: G02B30/25 ,  G02B27/01 ,  G02B5/30 ,  G02B3/12 ,  G02B7/04