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    Systems and Methods for Optical Alignment
    21.
    发明申请
    Systems and Methods for Optical Alignment 有权

    公开(公告)号：US20240393591A1

    公开(公告)日：2024-11-28

    申请号：US18488865

    申请日：2023-10-17

    Applicant: Apple Inc.

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

    IPC: G02B27/01 ,  F21V8/00 ,  G02B26/08 ,  G02B27/09 ,  G02B27/14

    Abstract: A display device may include first and second display modules that provide image light to first and second waveguides. The waveguides may direct the image light to first and second eye boxes. Each display module may include optics mounted to a housing and mechanical alignment structures that mechanically adjust the position of an optical axis of the optics. The alignment structures may rotate the entire housing, may mechanically translate the optics, may adjust the position of a spatial light modulator within the module, and/or control circuitry may change a subset of pixels used by the modulator to compensate for optical misalignment between the first and second eye boxes. The device may include optical misalignment sensors that detect the optical misalignment. The control circuitry may compensate for the optical misalignment as detected by the optical misalignment sensors.

    Electronic Devices With Deformation Sensors
    22.
    发明公开
    Electronic Devices With Deformation Sensors 审中-公开

    公开(公告)号：US20230418078A1

    公开(公告)日：2023-12-28

    申请号：US18465795

    申请日：2023-09-12

    Applicant: Apple Inc.

    Inventor： Christopher Patton ,  Clas M. Oldenbo ,  Scott M. DeLapp

    IPC: G02B27/01

    CPC classification number: G02B27/0176 ,  G02B27/0172 ,  G02B2027/0143 ,  G02B2027/0134 ,  G02B2027/0187

    Abstract: A head-mounted device may have head-mounted support structures configured to be worn on a head of a user. The head-mounted device may have stereo optical components such as left and right cameras or left and right display systems. The optical components may have respective left and right pointing vectors. Deformation of the support structures may cause the camera pointing vectors and/or the display system pointing vectors to become misaligned. Sensor circuitry such as strain gauge circuitry may measure pointing vector misalignment. Control circuitry may control the cameras and/or the display systems to compensate for measured changes in pointing vector misalignment.

    Optical Systems for Providing Polarized Light to a Waveguide
    24.
    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 for electronic devices with displays
    27.
    发明授权
    Optical systems for electronic devices with displays 有权

    公开(公告)号：US11009707B2

    公开(公告)日：2021-05-18

    申请号：US16610841

    申请日：2018-05-11

    Applicant: Apple Inc.

    Inventor： Guolin Peng ,  Hyungryul Choi ,  Scott M. DeLapp ,  Tyler G. Anderson

    IPC: G02B27/01 ,  F21V8/00

    Abstract: An electronic device may have a pixel array. A light source may illuminate the pixel array to produce image light. The image light may pass through a multi-element lens and may be coupled into a waveguide using an input coupler such as a prism. An output coupler such as a diffraction grating may couple the image light out of the waveguide and towards a user. The user may view the image light and may observe real-world objects through the waveguide. The waveguide may have locally modified portions that define an aperture stop at a distance from an exit surface of the multi-element lens. The multi-element lens may have first and second achromatic doublets and first and second singlets between the first and second achromatic doublets. The lens elements of the multi-element lens may include lens elements with aspheric surfaces.

    Waveguided Display System With Adjustable Lenses
    29.
    发明申请
    Waveguided Display System With Adjustable Lenses 审中-公开

    公开(公告)号：US20200049996A1

    公开(公告)日：2020-02-13

    申请号：US16520718

    申请日：2019-07-24

    Applicant: Apple Inc.

    Inventor： Jin Yan ,  Young Cheol Yang ,  Igor Stamenov ,  Scott M. DeLapp ,  Francesco Aieta ,  Bradley C. Steele ,  Enkhamgalan Dorjgotov ,  Se Baek Oh

    IPC: G02B27/01 ,  G02F1/137 ,  G02F1/133 ,  G02F1/1337 ,  G02F1/1347 ,  F21V8/00

    Abstract: An electronic device may have a display that provides image light to a waveguide. First and second liquid crystal lenses may be mounted to opposing surfaces of the waveguide. An coupler may couple the image light out of the waveguide through the first lens. The second lens may convey world light to the first lens. Control circuitry may control the first lens to apply a first optical power to the image light and the world light and may control the second lens to apply a second optical power to the world light that cancels out the first optical power. Each lens may include two layers of liquid crystal molecules having antiparallel pretilt angles. The pretilt angles and rubbing directions of the first lens may be antiparallel to corresponding pretilt angles and rubbing directions of the second lens about the waveguide.

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