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公开(公告)号：US11747553B1
公开(公告)日：2023-09-05
申请号：US17026063
申请日：2020-09-18
Applicant: Apple Inc.
Inventor： Tyler R. Kakuda , Elizabeth C. Porter , Jean-Pierre S. Guillou , Michael J. Brown , Paul C. Kelley , Salman Karbasi , Shubhaditya Majumdar , Yi Qiao
CPC classification number: G02B6/06 , G02B6/02052
Abstract: An electronic device may have a display overlapped by an image transport layer such as a coherent fiber bundle or layer of Anderson localization material. The image transport layer may have an input surface that receives an image from the display and a corresponding output surface to which the image is transported. The input surface and output surface may have different shapes. During fabrication of the image transport layer, molding techniques, grinding and polishing techniques, and other processes may be used to deform the image transport layer and the shape of the output surface. To accommodate differences in material deformation and other factors that vary as a function of position across the image transport layer, the image transport layer may be formed from canes of fibers or other material with one or more properties that vary as a function of position.
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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
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.
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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
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.
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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.
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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
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.
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Patent Agency Ranking
公开(公告)号：US10782818B2
公开(公告)日：2020-09-22
申请号：US16116785
申请日：2018-08-29
Applicant: Apple Inc.
Inventor： Andrew Deng , Travis N. Owens , Shubhaditya Majumdar , Wei Lin , Ying-da Wang , Timothy D. Koch , Nathan K. Gupta
Abstract: A force input sensor includes a load cell to adapt a compressive force applied to the force input sensor into a strain experienced by a strain sensor in the load cell. In particular, the load cell includes two compression plates separated from one another by a gap so as to define a volume between them. A flexible substrate (a “diaphragm”)—includes a strain sensor and is disposed and supported within the volume. One of the two compression plates includes a feature (a “loading feature”) that extends toward a central region of the flexible substrate. As a result of this construction, when the compression plates receive a compressive force, the loading feature induces a bending moment in the flexible substrate, thereby straining the strain sensor.
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公开(公告)号：US11774644B1
公开(公告)日：2023-10-03
申请号：US16902091
申请日：2020-06-15
Applicant: Apple Inc.
Inventor： Jean-Pierre S. Guillou , Michael J. Brown , Michael B. Wittenberg , Wei Lin , Salman Karbasi , Shubhaditya Majumdar , Ian T. Clark , Nathan K. Gupta , Prabhakar Gulgunje , Chunchia Huang
CPC classification number: G02B5/003 , G02B1/14 , G02B6/02 , G02F1/0063 , H05K5/0017
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 formed from fibers or Anderson localization material. The image transport layer may include light absorbing material. Light absorbing material may be incorporated as an additive into a component of the image transport layer such as the binder layer of a coherent fiber bundle or the cladding of fibers in the image transport layer. The image transport layer may also be formed from fibers with a light absorbing layer formed in addition to a transparent cladding. The image transport layer may be formed from Anderson localization material that has light absorbing material. Fibers for the image transport layer may be extruded with light absorbing portions. A polymer preform having light absorbing material may be drawn to form fibers for the image transport layer.
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公开(公告)号：US20210004115A1
公开(公告)日：2021-01-07
申请号：US17027296
申请日：2020-09-21
Applicant: Apple Inc.
Inventor： Andrew Deng , Travis N. Owens , Shubhaditya Majumdar , Wei Lin , Ying-da Wang , Timothy D. Koch , Nathan K. Gupta
Abstract: A force input sensor includes a load cell to adapt a compressive force applied to the force input sensor into a strain experienced by a strain sensor in the load cell. In particular, the load cell includes two compression plates separated from one another by a gap so as to define a volume between them. A flexible substrate (a “diaphragm”)—includes a strain sensor and is disposed and supported within the volume. One of the two compression plates includes a feature (a “loading feature”) that extends toward a central region of the flexible substrate. As a result of this construction, when the compression plates receive a compressive force, the loading feature induces a bending moment in the flexible substrate, thereby straining the strain sensor.
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公开(公告)号：US20200073504A1
公开(公告)日：2020-03-05
申请号：US16116785
申请日：2018-08-29
Applicant: Apple Inc.
Inventor： Andrew Deng , Travis N. Owens , Shubhaditya Majumdar , Wei Lin , Ying-da Wang , Timothy D. Koch , Nathan K. Gupta
Abstract: A force input sensor includes a load cell to adapt a compressive force applied to the force input sensor into a strain experienced by a strain sensor in the load cell. In particular, the load cell includes two compression plates separated from one another by a gap so as to define a volume between them. A flexible substrate (a “diaphragm”)—includes a strain sensor and is disposed and supported within the volume. One of the two compression plates includes a feature (a “loading feature”) that extends toward a central region of the flexible substrate. As a result of this construction, when the compression plates receive a compressive force, the loading feature induces a bending moment in the flexible substrate, thereby straining the strain sensor.
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公开(公告)号：US12013585B2
公开(公告)日：2024-06-18
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
CPC classification number: G02B6/4403 , G02B6/04 , G02B6/06 , G02B6/08 , G02B6/4296 , G02B6/4298 , G02B6/43 , G02B6/1221 , G02B6/125 , G02B6/4249
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.
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