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    Display Systems Having Imaging Capabilities
    22.
    发明公开
    Display Systems Having Imaging Capabilities 审中-公开

    公开(公告)号：US20240094534A1

    公开(公告)日：2024-03-21

    申请号：US18254150

    申请日：2021-11-23

    Applicant: Apple Inc.

    Inventor： Vikrant Bhakta ,  Hyungryul Choi

    IPC: G02B27/01 ,  G02B5/04 ,  G02B5/20 ,  G02B27/00 ,  G02B27/10 ,  G02B27/18

    CPC classification number: G02B27/0172 ,  G02B5/04 ,  G02B5/208 ,  G02B27/0093 ,  G02B27/1013 ,  G02B27/18 ,  G02B2027/0138 ,  G02B2027/014

    Abstract: A display may include a reflective display panel, an infrared image sensor and a waveguide. The panel may be operated in a first operating mode in which the panel reflects image light towards the waveguide and a second operating mode in which the panel reflects infrared light from the waveguide towards the infrared image sensor. The panel may also reflect infrared light from an infrared emitter towards the waveguide. If desired, the infrared image sensor may be mounted adjacent a reflective surface of a reflective input coupling prism on the waveguide. The infrared image sensor may receive the infrared light through the reflective surface. If desired, a world-facing camera may receive world light through the waveguide. The display module and the world-facing camera may be operated using a time multiplexing scheme to prevent the image light from interfering with images captured by the world-facing camera.

    Optical systems with lens-based static foveation
    23.
    发明授权
    Optical systems with lens-based static foveation 有权

    公开(公告)号：US11867907B2

    公开(公告)日：2024-01-09

    申请号：US17474366

    申请日：2021-09-14

    Applicant: Apple Inc.

    Inventor： Vikrant Bhakta ,  David A. Kalinowski ,  Hyungryul Choi ,  Nathanael D. Parkhill ,  Stanley K. Melax ,  Byron R. Cocilovo

    IPC: G02B27/01

    CPC classification number: G02B27/0172 ,  G02B2027/011 ,  G02B2027/0125 ,  G02B2027/0147 ,  G02B2027/0163

    Abstract: An electronic device may include a display module that produces light having an image, a lens that directs the light to a waveguide, and a waveguide that directs the light to an eye box. The lens may produce a foveated image in the light by applying a non-uniform magnification to the image in the light. The non-uniform magnification may vary as a function of angle within a field of view of the lens. This may allow the foveated image to have higher resolution within the central region than in the peripheral region. Performing foveation using the lens maximizes the resolution of images at the eye box without increasing the size of the display module. Control circuitry on the device may apply a pre-distortion to the image that is an inverse of distortion introduced by the lens in producing the foveated image.

    Optical Systems for Providing Polarized Light to a Waveguide
    25.
    发明公开
    Optical Systems for Providing Polarized Light to a Waveguide 审中-公开

    公开(公告)号：US20230333302A1

    公开(公告)日：2023-10-19

    申请号：US18188322

    申请日：2023-03-22

    Applicant: Apple Inc.

    Inventor： Vikrant Bhakta ,  Guolin Peng ,  Hyungryul Choi ,  Scott M. DeLapp

    IPC: F21V8/00 ,  G02B27/28 ,  G02B5/30 ,  G02B5/32

    CPC classification number: G02B6/0016 ,  G02B27/283 ,  G02B5/3083 ,  G02B6/0031 ,  G02B6/0035 ,  G02B5/32

    Abstract: A display may include a waveguide for providing light to an eye box. The display may include polarization recycling structures having a polarizing beam splitter and a prism. The polarizing beam splitter may transmit a first portion of unpolarized light as first image light having a first polarization and may reflect a second portion of the unpolarized light as second image light having a second polarization. One or more waveplates may be mounted to the prism for transmitting the second image light. Upon transmission by the waveplate(s), the second image light may have the same polarization as the first image light. An input coupler may couple the first and second image light into the waveguide. Providing polarized light to the waveguide may maximize the optical efficiency of the waveguide. The polarization recycling structures may maximize the amount of the image light that is coupled into the waveguide.

    Optical Systems Having Multiple Light Paths for Performing Foveation
    26.
    发明申请
    Optical Systems Having Multiple Light Paths for Performing Foveation 有权

    公开(公告)号：US20220004009A1

    公开(公告)日：2022-01-06

    申请号：US17479322

    申请日：2021-09-20

    Applicant: Apple Inc.

    Inventor： Graham B. Myhre ,  Guolin Peng ,  Hyungryul Choi ,  Scott M. DeLapp ,  Vikrant Bhakta

    IPC: G02B27/01 ,  G02B27/00

    Abstract: An electronic device may include a display module that produces foveated images having high and low resolution regions. The module may include a reflective display panel that produces first reflected light during first time periods and second reflected light during second time periods. The first reflected light may reflect off of a beam splitter to form the low resolution region of the foveated image. The second reflected light may be transmitted by the beam splitter, de-magnified by a lens, and redirected by an optical steering element to produce the high resolution region at a desired, adjustable, location in the foveated image. The reflective display panel may be replaced by sets of emissive display panels that concurrently display the high and low resolution regions in the foveated image. The sets of emissive display panels may be replaced by front-lit reflective display panels.

    Optical systems with lens-based static foveation
    28.
    发明授权
    Optical systems with lens-based static foveation 有权

    公开(公告)号：US12292572B2

    公开(公告)日：2025-05-06

    申请号：US18514710

    申请日：2023-11-20

    Applicant: Apple Inc.

    Inventor： Vikrant Bhakta ,  David A. Kalinowski ,  Hyungryul Choi ,  Nathanael D. Parkhill ,  Stanley K. Melax ,  Byron R. Cocilovo

    IPC: G02B27/01

    Abstract: An electronic device may include a display module that produces light having an image, a lens that directs the light to a waveguide, and a waveguide that directs the light to an eye box. The lens may produce a foveated image in the light by applying a non-uniform magnification to the image in the light. The non-uniform magnification may vary as a function of angle within a field of view of the lens. This may allow the foveated image to have higher resolution within the central region than in the peripheral region. Performing foveation using the lens maximizes the resolution of images at the eye box without increasing the size of the display module. Control circuitry on the device may apply a pre-distortion to the image that is an inverse of distortion introduced by the lens in producing the foveated image.

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