公开(公告)号：US20240012257A1

公开(公告)日：2024-01-11

申请号：US18334220

申请日：2023-06-13

Applicant: Apple Inc.

Inventor： Paul X Wang ,  Fletcher R Rothkopf

IPC: G02B27/01 ,  G02B7/02 ,  G06F3/01

CPC classification number: G02B27/0176 ,  G02B27/0179 ,  G02B7/021 ,  G02B7/023 ,  G06F3/013 ,  G02B2027/0154

Abstract: A head-mounted device may be provided with displays. The displays and lenses through which images on the displays are viewed may be mounted in optical modules. Lens positioners may be used to move the optical modules toward and away from eye boxes to adjust eye relief distance. Control circuitry may gather sensor data such as motion sensor data from a motion sensor indicating whether the head-mounted device is in free fall and/or image sensor data from a front-facing camera indicating whether the head-mounted device is headed toward a collision with an external surface. The control circuitry may use the lens positioners to automatically increase the eye relief distance in response to sensor data if a collision is predicted. The lens positioners may include solenoids or other actuators. The positions of the lenses may be adjusted without necessarily adjusting a distance between the lens and the display.

公开(公告)号：US20240268682A1

公开(公告)日：2024-08-15

申请号：US18568258

申请日：2022-06-08

Applicant: Apple Inc. ,  DATHOMIR LABORATORIES LLC.

Inventor： Grant H Mulliken ,  Cameron A Harder ,  Fletcher R Rothkopf ,  Izzet B Yildiz ,  Nicholas C Soldner

IPC: A61B5/01 ,  A61B5/00

CPC classification number: A61B5/01 ,  A61B5/6803 ,  A61B5/742 ,  A61B2560/0223 ,  A61B2562/0271

Abstract: Methods and apparatus for measuring biometric data including temperature in head-mounted devices (HMDs). Thermal sensors may also be integrated into the HMD and used to collect thermal data from the surface of the user's face. This thermal data may, for example, be processed to determine core body temperature of the user, or be processed to generate estimates of the user's respiration. The temperature data and/or respiration rate and changes to respiration rate derived from signals from the sensors may be used to generate and present biometric data to the user.

公开(公告)号：US20240394921A1

公开(公告)日：2024-11-28

申请号：US18691427

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Tushar Gupta ,  Arthur Y Zhang ,  Aleksandr M Movshovich ,  Ray L Chang ,  Fletcher R Rothkopf

IPC: G06T7/80 ,  G03B17/56 ,  G06T5/20 ,  H04N23/80

Abstract: Fiducial patterns that include sub-patterns of dot-like markers are generated or applied on or in transparent glass or plastic material, for example an optical element such as a cover glass or lens attachment. A camera may capture multiple images through the glass or plastic element that include diffraction patterns caused by the fiducial patterns. The diffraction patterns from multiple images may be processed and analyzed to extract information including but not limited to centroids of the sub-patterns of the fiducial patterns. This information may, for example, be used to estimate location of the fiducial 10 patterns with respect to the camera, and thus to estimate pose of the glass or lens element with respect to the camera. Information such as serial numbers and prescriptions can also be encoded in the fiducial patterns and extracted from the respective diffraction patterns.