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    Beam deflector metasurface
    71.
    发明授权
    Beam deflector metasurface 有权

    公开(公告)号：US12124002B2

    公开(公告)日：2024-10-22

    申请号：US17466813

    申请日：2021-09-03

    Applicant: Apple Inc.

    Inventor： Daryl I. Vulis ,  Brandon J. Hui ,  Christian Ocier ,  Shang Wang ,  Tong Chen ,  Zhenbin Ge ,  Runyu Zhang

    IPC: G02B1/00 ,  G02B5/18

    CPC classification number: G02B1/002 ,  G02B5/1809

    Abstract: Configurations for a beam deflector metasurface are disclosed. The beam deflector metasurface may include beam deflectors arranged in a repeating, radial pattern of concentric zones. The beam deflector metasurface may be a large area, high numerical aperture metasurface optic with high efficiency when directing light at non-normal angles of incidence. The different concentric zones may direct received light in varying directions with various steepness of angles. The beam deflectors may include pillars that may be the same or different width, height, or shape. The pillars may function as diffractive gratings and the cross-coupling between the pillars may direct the output light. The zones of the beam deflector metasurface may allow for diffusing hot spots and spreading the light evenly over the target area. The beam deflector metasurface may be used for non-imaging applications where the deterioration of focus allows for better efficiency at non-normal input and output angles of incidence. The beam deflectors may be designed for polarization and wavelength sensitivity as well as allowing for multiple processing benefits such as patterning the beam deflectors onto active devices.

    Large Mode Surface-Emitting Lasers for Self-Mixing Interferometry
    72.
    发明公开
    Large Mode Surface-Emitting Lasers for Self-Mixing Interferometry 审中-公开

    公开(公告)号：US20240305063A1

    公开(公告)日：2024-09-12

    申请号：US18423005

    申请日：2024-01-25

    Applicant: Apple Inc.

    Inventor： Pengfei Qiao ,  James J. Dudley ,  Tong Chen

    IPC: H01S5/183 ,  H01S5/11

    CPC classification number: H01S5/18361 ,  H01S5/11 ,  H01S5/18313

    Abstract: An optoelectronic device may include a first set of distributed Bragg reflective (DBR) layers, a second set of DBR layers, a gain region, and an enclosure layer between the gain region and the second set of DBR layers. In some cases, the enclosure layer defines a non-limiting mode oxide aperture. The optoelectronic device may also include a high contrast grating (HCG) mirror element disposed on a side of the second set of DBR layers. In some cases, the HCG mirror element has a first reflection coefficient that is greater than a second reflection coefficient of the second set of DBR layers. Another optoelectronic device may include a photonic crystal (PhC) mirror layer and a gain region disposed between the PhC mirror layer and a set of DBR layers.

    Self-mixing interferometry device configured for non-reciprocal sensing
    74.
    发明授权
    Self-mixing interferometry device configured for non-reciprocal sensing 有权

    公开(公告)号：US11874110B2

    公开(公告)日：2024-01-16

    申请号：US17118394

    申请日：2020-12-10

    Applicant: Apple Inc.

    Inventor： Tong Chen ,  Ahmet Fatih Cihan ,  Mingzhou Jin

    IPC: G01B9/02 ,  G06F3/01 ,  G02F1/21 ,  G02F1/09

    CPC classification number: G01B9/02092 ,  G02F1/093 ,  G02F1/21 ,  G06F3/017

    Abstract: Methods and systems concerning non-reciprocal sensing paths for a self-mixing interferometry operation are disclosed herein. Optical components may be used to direct light transmit from a light source along an illumination path. The optical components may additionally return light to the light source after being reflected from a target and may direct the returned light along a collection path. The illumination path and the collection path may be at least partially non-reciprocal so that the transmitted light and the returned light follow along partially different paths. Once the received light is received within a cavity of the light source, a self-mixing interferometry operation may be performed and may be used to detect a property of the target in relation to the light source.

    Active Optical Sensor Providing Near and Far Field Target Detection
    76.
    发明公开
    Active Optical Sensor Providing Near and Far Field Target Detection 审中-公开

    公开(公告)号：US20240004034A1

    公开(公告)日：2024-01-04

    申请号：US18195867

    申请日：2023-05-10

    Applicant: Apple Inc.

    Inventor： Tong Chen ,  Brandon J. Hui ,  Jianmin Gong ,  Mark T. Winkler ,  Runyu Liu ,  Yazan Z. Alnahhas ,  Yohai Zmora

    IPC: G01S7/481 ,  G01S17/08

    CPC classification number: G01S7/4813 ,  G01S17/08 ,  G01S7/4816 ,  G01S7/4815

    Abstract: An optical sensor module includes a module housing defining a first compartment having a first aperture and a second compartment having a second aperture, with the second aperture spaced apart from the first aperture. A set of optical emitters is disposed in the first compartment and configured to emit light through the first aperture. A first set of optical detectors is disposed in the first compartment and configured to receive a first redirected portion of the emitted light through the first aperture. A set of optical elements is disposed in the first compartment and configured to direct at least a portion of the emitted light or the first redirected portion of the emitted light. A second set of optical detectors is disposed in the second compartment and configured to receive a second redirected portion of the emitted light through the second aperture.

    Adaptive Optical Sensing Using Speckle Prediction
    77.
    发明公开
    Adaptive Optical Sensing Using Speckle Prediction 审中-公开

    公开(公告)号：US20240003671A1

    公开(公告)日：2024-01-04

    申请号：US18202813

    申请日：2023-05-26

    Applicant: Apple Inc.

    Inventor： Mingzhou Jin ,  Tong Chen ,  William Whitney

    IPC: G01B9/02001 ,  G01B9/02

    CPC classification number: G01B9/02001 ,  G01B9/02092 ,  G01B9/02094

    Abstract: An electronic device including an SMI sensor may be operated to predict interference in an SMI signal caused by speckle provided by the SMI sensor and operate the SMI sensor based on predicted interference in the SMI signal caused by speckle. Predicting interference in the SMI signal caused by speckle and operating the SMI sensor accordingly may allow for accurate measurement of physical phenomena using the SMI sensor with reduced power consumption.

    Optical tracking system
    79.
    发明授权
    Optical tracking system 有权

    公开(公告)号：US11762193B2

    公开(公告)日：2023-09-19

    申请号：US16538702

    申请日：2019-08-12

    Applicant: Apple Inc.

    Inventor： Tong Chen ,  Wenrui Cai ,  Mark T. Winkler

    IPC: G02B26/10 ,  G02B26/08 ,  G02B19/00 ,  G01S7/481 ,  G01S17/42

    CPC classification number: G02B26/10 ,  G02B19/0052 ,  G02B19/0071 ,  G02B26/0816 ,  G02B26/105 ,  G01S7/4817 ,  G01S17/42

    Abstract: An electronic device includes an electromagnetic radiation source having an axis, a set of optics disposed about the axis, a reflector disposed about the axis non-symmetrically, and a controller configured to operate the electromagnetic radiation source while controlling a beam steering orientation (e.g., rotation) of the reflector. The reflector is disposed to reflect electromagnetic radiation emitted by the electromagnetic radiation source. The set of optics is disposed to shape electromagnetic radiation emitted by the electromagnetic radiation source and direct electromagnetic radiation received from the reflector into a panoramic field of view about the axis.

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