公开(公告)号：US20250106366A1

公开(公告)日：2025-03-27

申请号：US18975412

申请日：2024-12-10

Applicant: Meta Platforms Technologies, LLC

Inventor： Jean-Charles BAZIN ,  Alexandre CHAPIRO

IPC: H04N7/18 ,  G02B27/01 ,  G06F3/01 ,  G06T19/00 ,  G09G5/12

Abstract: In holographic calling, it is difficult to capture the eyes of a caller due to lighting effects on an artificial reality (XR) headset. However, it can be important to capture the eyes when rendering the caller as they can show emotion, gaze, physical characteristics, etc., that aid in natural communication. Thus, implementations can capture the eyes of the caller using an external image capture device by briefly turning off the lighting effects on the XR headset. Some implementations can trigger the image capture device to capture an image of the eyes by temporal multiplexing in which timers on both the image capture device and the XR headset are synchronized. In other implementations, the image capture device can be an event-based camera that is automatically triggered to capture an image of the eyes based on a detected pixel change caused by deactivation of the lighting effects on the XR headset.

公开(公告)号：US20240073376A1

公开(公告)日：2024-02-29

申请号：US17822603

申请日：2022-08-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Jean-Charles BAZIN ,  Alexandre CHAPIRO

IPC: H04N7/18 ,  G02B27/01 ,  G06F3/01 ,  G06T19/00 ,  G09G5/12

CPC classification number: H04N7/188 ,  G02B27/0172 ,  G02B27/0179 ,  G06F3/013 ,  G06T19/006 ,  G09G5/12 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0178 ,  G06T2219/024

Abstract: In holographic calling, it is difficult to capture the eyes of a caller due to lighting effects on an artificial reality (XR) headset. However, it can be important to capture the eyes when rendering the caller as they can show emotion, gaze, physical characteristics, etc., that aid in natural communication. Thus, implementations can capture the eyes of the caller using an external image capture device by briefly turning off the lighting effects on the XR headset. Some implementations can trigger the image capture device to capture an image of the eyes by temporal multiplexing in which timers on both the image capture device and the XR headset are synchronized. In other implementations, the image capture device can be an event-based camera that is automatically triggered to capture an image of the eyes based on a detected pixel change caused by deactivation of the lighting effects on the XR headset.

公开(公告)号：US20250067982A1

公开(公告)日：2025-02-27

申请号：US18811361

申请日：2024-08-21

Applicant: Meta Platforms Technologies, LLC

Inventor： Changwon JANG ,  Te HU ,  Jianing YAO ,  Dongmin YANG ,  Ajit NINAN ,  Alexandre CHAPIRO

IPC: G02B27/01 ,  G02B5/20 ,  G02B27/00 ,  G02B27/09

Abstract: A head-mounted display device employs controllable aperture projection for uniformity of a waveguide display within a field of view and eyebox domain. A waveguide-based display to control pupil replication density may comprise an image panel to provide light, a projection lens to receive and focus the light from the image panel, a variable aperture to pass the focused light in a controllable manner, and a waveguide to project the focused light passed through by the variable aperture onto an eye box, wherein the variable aperture is positioned at an entrance of the waveguide.