公开(公告)号：US12104934B2

公开(公告)日：2024-10-01

申请号：US18141672

申请日：2023-05-01

Applicant: Apple Inc.

Inventor： Xin Li ,  Damon R. Lemmon ,  David D. Dashevsky ,  Dianbo Guo ,  Peng Zhao ,  Ruonan Yang

IPC: G01D5/347 ,  G06F3/03 ,  G06F3/0362

CPC classification number: G01D5/34715 ,  G01D5/3473 ,  G06F3/0312 ,  G06F3/0362

Abstract: An electronic device is described. The electronic device may include a housing, a rotatable crown, and a self-mixing interferometry (SMI) sensor positioned within the housing. The rotatable crown may include an array of retroreflective surface features that reflect incident light back to a light source. Each retroreflective surface feature of the array of retroreflective surface features may be formed as a corner-cube with three perpendicular faces. The SMI sensor or associated processing electronics may compare originally emitted light with reflected light to identify a movement or distance of the rotatable crown with respect to the SMI sensor.

公开(公告)号：US20230258479A1

公开(公告)日：2023-08-17

申请号：US18141672

申请日：2023-05-01

Applicant: Apple Inc.

Inventor： Xin Li ,  Damon R. Lemmon ,  David D. Dashevsky ,  Dianbo Guo ,  Peng Zhao ,  Ruonan Yang

IPC: G01D5/347 ,  G06F3/03 ,  G06F3/0362

CPC classification number: G01D5/34715 ,  G06F3/0312 ,  G06F3/0362 ,  G01D5/3473

Abstract: An electronic device is described. The electronic device may include a housing, a rotatable crown, and a self-mixing interferometry (SMI) sensor positioned within the housing. The rotatable crown may include an array of retroreflective surface features that reflect incident light back to a light source. Each retroreflective surface feature of the array of retroreflective surface features may be formed as a corner-cube with three perpendicular faces. The SMI sensor or associated processing electronics may compare originally emitted light with reflected light to identify a movement or distance of the rotatable crown with respect to the SMI sensor.

公开(公告)号：US11674825B2

公开(公告)日：2023-06-13

申请号：US17480636

申请日：2021-09-21

Applicant: Apple Inc.

Inventor： Xin Li ,  Damon R. Lemmon ,  David D. Dashevsky ,  Dianbo Guo ,  Peng Zhao ,  Ruonan Yang

IPC: G01D5/347 ,  G06F3/03 ,  G06F3/0362

CPC classification number: G01D5/34715 ,  G01D5/3473 ,  G06F3/0312 ,  G06F3/0362

Abstract: An electronic device is described. The electronic device may include a housing, a rotatable crown, and a self-mixing interferometry (SMI) sensor positioned within the housing. The rotatable crown may include an array of retroreflective surface features that reflect incident light back to a light source. Each retroreflective surface feature of the array of retroreflective surface features may be formed as a corner-cube with three perpendicular faces. The SMI sensor or associated processing electronics may compare originally emitted light with reflected light to identify a movement or distance of the rotatable crown with respect to the SMI sensor.

公开(公告)号：US20230086536A1

公开(公告)日：2023-03-23

申请号：US17480636

申请日：2021-09-21

Applicant: Apple Inc.

Inventor： Xin Li ,  Damon R. Lemmon ,  David D. Dashevsky ,  Dianbo Guo ,  Peng Zhao ,  Ruonan Yang

IPC: G01D5/347 ,  G06F3/0362 ,  G06F3/03

Abstract: An electronic device is described. The electronic device may include a housing, a rotatable crown, and a self-mixing interferometry (SMI) sensor positioned within the housing. The rotatable crown may include an array of retroreflective surface features that reflect incident light back to a light source. Each retroreflective surface feature of the array of retroreflective surface features may be formed as a corner-cube with three perpendicular faces. The SMI sensor or associated processing electronics may compare originally emitted light with reflected light to identify a movement or distance of the rotatable crown with respect to the SMI sensor.