US 12,462,430 B2
Head-mounted virtual reality device
Qiang Wang, Beijing (CN)
Assigned to Beijing Zitiao Network Technology Co., Ltd., Beijing (CN)
Filed by Beijing Zitiao Network Technology Co., Ltd., Beijing (CN)
Filed on Sep. 7, 2023, as Appl. No. 18/463,203.
Claims priority of application No. 202211091839.1 (CN), filed on Sep. 7, 2022.
Prior Publication US 2024/0078707 A1, Mar. 7, 2024
Int. Cl. H04N 23/56 (2023.01); G06T 7/73 (2017.01); G06T 7/80 (2017.01); H04N 23/90 (2023.01)
CPC G06T 7/80 (2017.01) [G06T 7/73 (2017.01); H04N 23/56 (2023.01); H04N 23/90 (2023.01); G06T 2207/30201 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A head-mounted visual reality device, comprising an eye movement recognition assembly and a processor, wherein the eye movement recognition assembly comprises a light source assembly and a first camera;
the light source assembly comprises a light source and a diffractive optical element, wherein the diffractive optical element is provided with a plurality of light-emitting holes, a first pattern is formed by the plurality of light-emitting holes, and the light source assembly is configured such that a first reflected pattern on an eyeball of a user is formed by light emitted by the light source assembly when the head-mounted virtual reality device is used;
the first camera is configured to photograph a first eye picture of the user when the head-mounted virtual reality device is used, and the first eye picture comprises at least part of the first reflected pattern; and
the processor is configured to acquire the first eye picture photographed by the first camera, and determine, according to the first eye picture, a position coordinate of a central point of a pupil corresponding to the user.