公开(公告)号：US20220330410A1

公开(公告)日：2022-10-13

申请号：US17229729

申请日：2021-04-13

Applicant: Apple Inc.

Inventor： Yaser Shanjani ,  Michael K. McCord ,  Tong Chen

IPC: H05B47/20 ,  H02J50/10 ,  H04B10/11 ,  H04B5/00

Abstract: First and second parts of an optical component may be spatially separated and not electrically connected. A passive side may contain an optical element. An active side may contain a light-emitting device. To detect damage to the optical element, passive side circuitry that is associated with the optical element may monitor a fail-safe resistor on the optical element for changes in resistance. The circuitry may use a passive side near-field communications antenna to transmit information such as information on the fail-safe resistor to active side circuitry that is associated with the light-emitting device using near-field communications. The active side circuitry can receive the transmitted information using an active side near-field communications antenna and can adjust the light-emitting device accordingly. The active side circuitry can also monitor the active side near-field communications antenna to detect when the passive side and active side antennas have been moved apart.

公开(公告)号：US12281957B2

公开(公告)日：2025-04-22

申请号：US17664832

申请日：2022-05-24

Applicant: Apple Inc.

Inventor： Michael K. McCord ,  Ehsan Khajeh ,  Brian M. King ,  Tong Chen ,  Yaser Shanjani

IPC: G01M11/02 ,  G02B3/00

Abstract: Acoustic optical integrity detection system architectures and methods can be used to detect optical integrity of an optical component by detecting a discontinuity on and/or in the optical component (e.g., on the optical surface and/or within the bulk of the optical component). In some examples, integrity detection can be used to ensure safety compliance of an optical system, optionally including a laser. Acoustic integrity detection can utilize transducers (e.g., piezoelectric transducers) to transmit ultrasonic waves along an optical surface and/or through the thickness of an optical component. A discontinuity of the optical surface can interact with the transmitted wave causing attenuation, redirection and/or reflection of at least a portion of the transmitted wave. Portions of the transmitted wave energy after interaction with the discontinuity can be measured to determine discontinuity location, type, and/or severity.

公开(公告)号：US12133314B2

公开(公告)日：2024-10-29

申请号：US17229729

申请日：2021-04-13

Applicant: Apple Inc.

Inventor： Yaser Shanjani ,  Michael K. McCord ,  Tong Chen

IPC: H05B47/20 ,  H02J50/10 ,  H04B5/70 ,  H04B10/11

CPC classification number: H05B47/20 ,  H02J50/10 ,  H04B5/70 ,  H04B10/11

Abstract: First and second parts of an optical component may be spatially separated and not electrically connected. A passive side may contain an optical element. An active side may contain a light-emitting device. To detect damage to the optical element, passive side circuitry that is associated with the optical element may monitor a fail-safe resistor on the optical element for changes in resistance. The circuitry may use a passive side near-field communications antenna to transmit information such as information on the fail-safe resistor to active side circuitry that is associated with the light-emitting device using near-field communications. The active side circuitry can receive the transmitted information using an active side near-field communications antenna and can adjust the light-emitting device accordingly. The active side circuitry can also monitor the active side near-field communications antenna to detect when the passive side and active side antennas have been moved apart.

公开(公告)号：US20240102852A1

公开(公告)日：2024-03-28

申请号：US18077988

申请日：2022-12-08

Applicant: Apple Inc.

Inventor： Brandon J. Hui ,  Yaser Shanjani ,  Mark T. Winkler ,  Tong Chen ,  Michael K. McCord ,  Runyu Liu ,  Aaron Krahn

IPC: G01J1/02 ,  G01J1/04

CPC classification number: G01J1/0271 ,  G01J1/0407

Abstract: An optical proximity sensor includes a housing, an optical emitter, and an optical detector. A first light guide disposed in a first chimney of the housing is configured to direct light from the optical emitter through the first chimney towards a target location. A second light guide disposed in a second chimney of the housing is configured to direct a returned portion of the light emitted from the optical emitter through the second chimney towards the optical detector.