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    Methods for forming image transport layers for electronic devices
    2.
    发明授权
    Methods for forming image transport layers for electronic devices 有权

    公开(公告)号：US11534995B1

    公开(公告)日：2022-12-27

    申请号：US16904456

    申请日：2020-06-17

    Applicant: Apple Inc.

    Inventor： Wei Lin ,  Nathan K. Gupta ,  Shubhaditya Majumdar ,  Prabhakar Gulgunje

    IPC: B29D11/00

    Abstract: An electronic device may have a housing with a display. A protective display cover layer for the display may have an image transport layer such as an image transport layer formed from Anderson localization material. Anderson localization material may be formed using equipment such as heated molds, extrusion equipment, fusion tools, and fiber drawing equipment. The materials used to form a block of Anderson localization material may be polymers or other transparent materials. Elevated temperatures such as temperatures above the melting points of the polymers may be used during extrusion, fusion, drawing, and other operations.

    Single-step extrusion of fiber optic plates for electronic devices
    3.
    发明授权
    Single-step extrusion of fiber optic plates for electronic devices 有权

    公开(公告)号：US11247421B1

    公开(公告)日：2022-02-15

    申请号：US16848264

    申请日：2020-04-14

    Applicant: Apple Inc.

    Inventor： Prabhakar Gulgunje ,  Wei Lin ,  Shubhaditya Majumdar ,  Nathan K. Gupta

    IPC: G02B6/08 ,  B29D11/00

    Abstract: An electronic device may have a housing with a display. A protective display cover layer for the display may have an image transport layer such as a fiber optic plate. The fiber optic plate may be formed from fibers. An extruder may form fiber bundles that each include a respective plurality of fibers distributed in binder material. The fiber bundles from the extruder may be fed directly to a block forming die. The block forming die may receive the fiber bundles from the extruder and output a unitary fiber block. The fiber bundles may remain heated in the block forming die such that the binder material of the fiber bundles seamlessly merges during formation of the unitary fiber block. A cutter can be used to cut off a layer of the unitary fiber block. This layer may be machined and polished to form the fiber optic plate.

    Systems having fibers with antireflection coatings
    4.
    发明授权
    Systems having fibers with antireflection coatings 有权

    公开(公告)号：US11644617B1

    公开(公告)日：2023-05-09

    申请号：US17408300

    申请日：2021-08-20

    Applicant: Apple Inc.

    Inventor： Shenglin Ye ,  Wei Lin ,  Prabhakar Gulgunje ,  Shubhaditya Majumdar ,  Boyi Fu ,  Sudirukkuge T. Jinasundera ,  Nathan K. Gupta

    IPC: G02B6/04 ,  G02B6/10

    CPC classification number: G02B6/04 ,  G02B6/102

    Abstract: A system may include one or more electronic devices. Fiber bundles may be provided to convey light. A fiber bundle may have a bend along its length. Fibers for the fiber bundle may be formed from polymer cores coated with polymer claddings. The fibers may have end faces coated with antireflection coatings. The antireflection coatings may be formed from amorphous fluoropolymer deposited from solution. The fluoropolymer may be applied to the end faces of the fibers by dipping, spraying, or by dispensing with a needle dispenser or other dispensing tool. An optical component such as a light-emitting device for a communications system, an illumination system, or a sensor system may provide infrared light that is guided through the fiber bundle.

    Electronic Devices With Optical Fiber Ribbons
    5.
    发明申请
    Electronic Devices With Optical Fiber Ribbons 有权

    公开(公告)号：US20220236507A1

    公开(公告)日：2022-07-28

    申请号：US17528023

    申请日：2021-11-16

    Applicant: Apple Inc.

    Inventor： Prabhakar Gulgunje ,  Brian S. Medower ,  Mahmut C. Orsan ,  Nathan K. Gupta ,  Shifa Xu ,  Shubhaditya Majumdar ,  Wei Lin ,  Yazan Z. Alnahhas

    IPC: G02B6/44 ,  G02B6/42

    Abstract: A light pipe such as a fiber ribbon may be formed from fibers joined by binder such as extruded binder. The fiber ribbon or other light pipe may have bends. A light source may provide light to an input of a fiber ribbon that is guided by the fiber ribbon to a corresponding output. The output may be located in an interior portion of an electronic device or may be positioned so that light from the output exits the electronic device and illuminates external objects. The light source may have light-emitting devices on a substrate. The light-emitting devices may be vertical cavity surface-emitting laser diodes or other lasers and/or may be light-emitting diodes. Light-emitting devices may be arranged in discrete clusters corresponding to the locations of fiber cores in the fiber ribbon.

    Electronic devices with drawn sheet-packed coherent fiber bundles
    7.
    发明授权
    Electronic devices with drawn sheet-packed coherent fiber bundles 有权

    公开(公告)号：US11525955B1

    公开(公告)日：2022-12-13

    申请号：US17327441

    申请日：2021-05-21

    Applicant: Apple Inc.

    Inventor： Wei Lin ,  Nathan K. Gupta ,  Prabhakar Gulgunje ,  Shubhaditya Majumdar

    IPC: G02B6/06 ,  G02B6/08

    Abstract: An electronic device may have a display, a display cover layer, and a drawn sheet-packed coherent fiber bundle. The coherent fiber bundle may have an input surface that receives an image from the display and a corresponding output surface to which the image is transported. The coherent fiber bundle may be placed between the display and the display cover layer and mounted to a housing. The coherent fiber bundle may have fiber cores with bends that help conceal the housing from view and make the display appear borderless. The coherent fiber bundle has filaments formed from elongated strands of binder in which multiple fibers are embedded. Sheets of filaments are stacked and fused together to form a block of material that is subsequently drawn to form the drawn sheet-packed coherent fiber bundle.

    Electronic devices with image transport layers
    8.
    发明授权
    Electronic devices with image transport layers 有权

    公开(公告)号：US11215752B1

    公开(公告)日：2022-01-04

    申请号：US17112147

    申请日：2020-12-04

    Applicant: Apple Inc.

    Inventor： Wei Lin ,  Di Liu ,  Chunchia Huang ,  Nathan K. Gupta ,  Prabhakar Gulgunje ,  Shenglin Ye ,  Shubhaditya Majumdar

    IPC: G02B6/08 ,  G02B6/02

    Abstract: An electronic device may have a housing with a display. A protective display cover layer for the display may have an image transport layer such as an image transport layer formed from optical fibers. Extruded filaments of binder material may be fused together to form a layer of binder for the image transport layer. Each filament may contain multiple embedded optical fibers. As a result of the extrusion process, the optical fibers may be characterized by increasing lateral deformation at increasing distances from the center of the filament in which the optical fibers are embedded. Tension variations and variations in the orientation angle of the fibers in the image transport layer can be maintained below desired limits to ensure satisfactory optical performance for the image transport layer. The optical fibers and binder may be formed from polymers or other clear materials.

    Cleaning System
    9.
    发明公开
    Cleaning System 审中-公开

    公开(公告)号：US20240317181A1

    公开(公告)日：2024-09-26

    申请号：US18598433

    申请日：2024-03-07

    Applicant: APPLE INC.

    Inventor： Paul M. Connolly ,  Prabhakar Gulgunje ,  Vijayen S. Veerasamy

    IPC: B60S1/34 ,  B60S1/08

    CPC classification number: B60S1/3411 ,  B60S1/0818 ,  B60S1/0896

    Abstract: A cleaning system includes an arm configured for connection to a cleaning implement. A base is spaced from the arm in an extension direction such that the cleaning implement is positionable between the arm and the base. The base and the arm are configured to move together in the extension direction between a recessed position and a raised position relative to a surface, and the arm is configured to rotate relative to the base in the raised position.

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