公开(公告)号：US20250016436A1

公开(公告)日：2025-01-09

申请号：US18762125

申请日：2024-07-02

Applicant: Lemon Inc. ,  Beijing Zitiao Network Technology Co., Ltd.

Inventor： Bowei ZHANG ,  Runyu LIU ,  Xiaokai LI

IPC: H04N23/611 ,  G02B27/00 ,  H04N23/65 ,  H04N23/667 ,  H04N23/90

Abstract: The disclosure provides a method for an electronic device including a lens; a plurality of light sources disposed on or adjacent to an edge of the lens, and configured to illuminate an eye of a user; at least one camera disposed adjacent to the edge of the lens, and configured to capture an image of the eye; and a controller configured to perform eye tracking for the user based on the image captured by the at least one camera. According to the embodiments of the disclosure, on a premise that the characteristics of the lens are not affected by the electronic device, a feasibility of capturing the eye image and quality of the image are ensured.

公开(公告)号：US20240385458A1

公开(公告)日：2024-11-21

申请号：US18666285

申请日：2024-05-16

Applicant: Beijing Zitiao Network Technology Co., Ltd.

Inventor： Xiaokai LI ,  Xin LI ,  Shuai DONG ,  Yao TIAN

IPC: G02B27/01 ,  G02B27/00 ,  G06F3/01

Abstract: A head-mounted display device and a control method thereof, and a computer-readable storage medium are provided. The head-mounted display device includes a display screen and a lens component, and the control method of the head-mounted display device includes: determining gaze directions of both eyes of a user; determining a gaze focus according to the gaze directions of the both eyes; and adjusting positions of the display screen and the lens component according to the gaze focus, so that the gaze focus is located at an image plane position of a virtual image formed by the lens component from an image displayed by the display screen.

公开(公告)号：US20250102854A1

公开(公告)日：2025-03-27

申请号：US18891670

申请日：2024-09-20

Applicant: Beijing Zitiao Network Technology Co., Ltd.

Inventor： Xin LI ,  Ling FU ,  Shuai DONG ,  Xiaokai LI

IPC: G02F1/1335 ,  G02F1/13363 ,  G02F1/137 ,  G06F3/01

Abstract: An optical system and a display apparatus are provided. The optical system includes: a lens component, a polarized reflection layer, a transflective film, and a phase retardation film; a distance between two intersection points where the first surface and the second surface intersect with the optical axis is a first distance, a distance between two intersection points where the third surface and the fourth surface intersect with the optical axis is a second distance, and a distance between two intersection points of the fifth surface and the sixth surface intersect with the optical axis is a third distance; a ratio of an absolute value of a curvature radius of the fourth surface to an absolute value of a curvature radius of the third surface is 0.8 to 1, the second distance is greater than the first distance, and the second distance is greater than the third distance.

公开(公告)号：US20250085523A1

公开(公告)日：2025-03-13

申请号：US18572129

申请日：2023-11-22

Applicant: Beijing Zitiao Network Technology Co., Ltd.

Inventor： Shuai DONG ,  Xin LI ,  Xiaokai LI ,  Zhao ZHANG

IPC: G02B17/08

Abstract: An optical structure and a display device are provided. The optical structure includes a first lens and a transflective film. The first lens includes a first surface and a second surface, the first surface and the second surface are non-planar surfaces; the transflective film is located at a side of the first surface away from the second surface. The optical structure further includes a light-transmitting flat plate assembly located at a side of the second surface away from the first surface, and the light-transmitting flat plate assembly includes a light-transmitting flat plate, a phase retardation film and a polarizing reflective film, the polarizing reflective film is located at a side of the phase retardation film away from the first lens, and the phase retardation film and the polarizing reflective film are located on a flat plate surface of the light-transmitting flat plate or inside the light-transmitting flat plate.

公开(公告)号：US20250052938A1

公开(公告)日：2025-02-13

申请号：US18718329

申请日：2023-04-11

Applicant: Beijing Zitiao Network Technology Co., Ltd.

Inventor： Shaopeng ZHU ,  Wei ZHANG ,  Ziyang ZHANG ,  Zhao ZHANG ,  Xiaokai LI

IPC: G02B5/30 ,  G02B1/08

Abstract: The present disclosure provides an optical polarizing device and a manufacturing method therefor, and a near-eye display apparatus. The optical polarizing device includes: a reflective polarizing film, a linear polarizing coating located on one side of the reflective polarizing film, and a phase retardation coating located on the other side of the reflective polarizing film. A distance between at least one of the linear polarizing coating and the phase retardation coating and a surface of the reflective polarizing film is less than 0.5 micrometers.

公开(公告)号：US20240377569A1

公开(公告)日：2024-11-14

申请号：US18658564

申请日：2024-05-08

Applicant: Beijing Zitiao Network Technology Co., Ltd.

Inventor： Wei TAN ,  Wen XIONG ,  Hao TANG ,  Xiaokai LI

IPC: F21V8/00 ,  G02B27/01 ,  G02B27/44

Abstract: The present invention provides a diffractive optical waveguide and a preparation method thereof, and an augmented reality display device. The diffractive optical waveguide includes: a total reflection layer, wherein the total reflection layer includes a first light propagation layer and a second light propagation layer, which are disposed in a stacked manner, a refractive index of the second light propagation layer is less than a refractive index of the first light propagation layer, and the second light propagation layer is deposited on one surface of the first light propagation layer via a deposition method; and a coupling-in grating and a coupling-out grating, wherein the coupling-in grating and the coupling-out grating are disposed at intervals on a side of the first light propagation layer that faces away from the second light propagation layer.