公开(公告)号：US20240057896A1

公开(公告)日：2024-02-22

申请号：US18234786

申请日：2023-08-16

Applicant: APPLE INC

Inventor： Edward Vail ,  Ehsan Shah-Hosseini ,  Joseph M. Schmitt

IPC: A61B5/11 ,  A61B5/00

CPC classification number: A61B5/1126 ,  A61B5/681 ,  G02B6/4298

Abstract: An optical sensor includes a waveguide for directing, receiving, and coherently mixing electromagnetic radiation from an electromagnetic radiation source to detect one or more physical phenomena. The waveguide is integrable into a printed circuit board, allowing the optical sensor to maintain a small footprint.

公开(公告)号：US20240288549A1

公开(公告)日：2024-08-29

申请号：US18113104

申请日：2023-02-23

Applicant: Apple Inc.

Inventor： Thierry Oggier ,  Ehsan Shah-Hosseini ,  Edward Vail

IPC: G01S7/481 ,  G01S7/4913 ,  G01S17/34

CPC classification number: G01S7/4812 ,  G01S7/4815 ,  G01S7/4913 ,  G01S17/34

Abstract: Range sensing apparatus includes a transmitter including an array of emitters configured to emit respective beams of coherent optical radiation and switching circuitry coupled to the emitters. An optical assembly is configured to divide each beam of the coherent optical radiation into a transmitted beam and a local beam, to project the local beam toward an optical detector, to project the transmitted beam toward a respective location on a target, and to direct optical radiation reflected from the respective location onto the optical detector so as to interfere optically with the local beam. A controller is coupled to apply amplitude-chirped electrical drive pulses to the transmitter while controlling the switching circuitry to temporally multiplex the electrical drive pulses among the emitters, and to receive and process electrical beat signals output by the optical detector in response to interference between the reflected optical radiation and the local beam.

公开(公告)号：US20230366986A1

公开(公告)日：2023-11-16

申请号：US17742419

申请日：2022-05-12

Applicant: APPLE INC.

Inventor： Nurul Taimur Islam ,  Malcolm J. Northcott ,  Christopher M. Rogers ,  Helen H. Liang ,  Ehsan Shah-Hosseini ,  Jack E. Graves ,  Ariel Lipson ,  Daniel Kravitz

IPC: G01S7/481 ,  G01S17/42 ,  G01S17/89 ,  G02B26/10

CPC classification number: G01S7/4817 ,  G01S17/42 ,  G01S17/89 ,  G01S7/4815 ,  G02B26/105 ,  G02B26/108

Abstract: An optical sensing device includes a planar substrate and an array of optical transceivers disposed on the planar substrate. Each optical transceiver includes a photodetector, at least one turning mirror having a reflective surface disposed diagonally relative to the substrate, and multiple waveguides disposed parallel to the substrate. The waveguides include a transmit waveguide, which is coupled to convey outgoing light from a coherent light source to the at least one turning mirror for output from the optical transceiver, and a receive waveguide, which is coupled to receive incoming light reflected by the at least one turning mirror and to convey the incoming light to the photodetector.