US 12,076,088 B2
Virtual reality-based portable nystagmography device and diagnostic test method using same
Young Joon Seo, Wonju-si Gangwon-do (KR)
Assigned to M.I.ONE CO., LTD., Gangwon-do (KR)
Appl. No. 17/299,195
Filed by M.I.One Co., Ltd., Gangwon-do (KR)
PCT Filed Dec. 5, 2018, PCT No. PCT/KR2018/015293
§ 371(c)(1), (2) Date Jun. 2, 2021,
PCT Pub. No. WO2020/116669, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 10-2018-0154209 (KR), filed on Dec. 4, 2018.
Prior Publication US 2022/0071484 A1, Mar. 10, 2022
Int. Cl. A61B 3/113 (2006.01); A61B 3/00 (2006.01); A61B 3/14 (2006.01); G02B 30/34 (2020.01); G16H 20/30 (2018.01); H04N 13/239 (2018.01); H04N 13/296 (2018.01); H04N 13/332 (2018.01); H04N 13/398 (2018.01)
CPC A61B 3/113 (2013.01) [A61B 3/005 (2013.01); A61B 3/14 (2013.01); G02B 30/34 (2020.01); G16H 20/30 (2018.01); H04N 13/239 (2018.05); H04N 13/296 (2018.05); H04N 13/332 (2018.05); H04N 13/398 (2018.05)] 12 Claims
OG exemplary drawing
 
1. A VR-based portable nystagmus test apparatus that is configured of a main body and a band to be worn on a subject, the VR-based portable nystagmus test apparatus comprising:
a first display that is provided at an inner side of the main body and outputs a displaying image;
an optical/imaging unit that is disposed between the first display and both eyes of the subject to provide the displaying image as a stereoscopic image to the subject and images an eyeball of the subject who gazes at the stereoscopic image, once or more times; and
a control unit that provides both the stereoscopic image and a voice order to the subject depending on a selected examination item and performs an examination on the subject based on one or more eyeball images captured by the optical/imaging unit,
wherein the optical/imaging unit includes:
a first unit that provides the stereoscopic image to a left eye of the subject and images the left eye of the subject;
a second unit that provides the stereoscopic image to a right eye of the subject and images the right eye of the subject; and
a screen that is disposed between the first unit and the second unit to divide a field of view of the subject, and
wherein the control unit controls each of the first unit and the second unit to adjust an inter-ocular distance and convergence between the subject and the stereoscopic image,
wherein each of the first unit and the second unit includes:
a half mirror that transmits the stereoscopic image incident to a rear surface of the half mirror to provide the stereoscopic image to the subject and reflects both eyes of the subject by a front surface of the half mirror;
one or more cameras that image a reflected image from the half mirror;
an eyepiece which is disposed between the half mirror and the first display and of which a position is controlled by the control unit such that an inter-ocular distance and convergence of the stereoscopic image is adjusted; and
a polarized lens that is disposed between the eyepiece and the first display, separates the displaying image into a left eye image and a right eye image to correspond to both eyes of the subject, and provides the corresponding right or left eye image as the stereoscopic image to the eyepiece.