公开(公告)号：US20250102425A1

公开(公告)日：2025-03-27

申请号：US18752306

申请日：2024-06-24

Applicant: Apple Inc.

Inventor： Fehmi Civitci ,  David D Dashevsky ,  Christopher M Dodson ,  Kenneth J Vampola ,  Mark T Winkler ,  Dawei Lu

IPC: G01N21/31

Abstract: An electronic device may include a housing and relative humidity sensor in the housing. The relative humidity sensor may include an optical layer, a relative humidity-sensitive layer coupled to a surface of the optical layer, a light emitter that emits light into the optical layer, and a light detector that detects light that has reflected within the optical layer and off of the relative humidity-sensitive layer. The relative humidity may be determined based on the light detected by the light detector. The optical layer may be a layer with angled edges, a prism, a Bragg reflector, or a waveguide. A reference light detector and/or a temperature sensor may be included in the relative humidity sensor, and measurements from these additional sensors may be used in determining the relative humidity. In this way, an optical relative humidity sensor may be formed in the electronic device.

公开(公告)号：US20250093968A1

公开(公告)日：2025-03-20

申请号：US18812916

申请日：2024-08-22

Applicant: Apple Inc.

Inventor： Ian P Colahan ,  Christopher K Ewy ,  Yuhao Pan ,  Tong Chen ,  David D Dashevsky

IPC: G06F3/03 ,  G06F3/0354 ,  G06F3/038

Abstract: A system may include an electronic device such as a head-mounted device and a handheld controller for controlling the electronic device. The handheld controller may have a housing with an elongated shaft extending between first and second tip portions. A removable tip member may be coupled to the first tip portion. A position sensor may be located in the removable tip member and may be used to track surface markings made with the handheld controller on a surface. The position sensor may be an optical flow sensor, a visual inertial odometry camera, an interferometer, or other sensor. A force sensor at the first tip portion may be used to detect when the tip contacts a surface. The position sensor may switch from air input mode to surface marking mode in response to detecting contact with the surface.