Display Devices with In-Field Calibration

    公开(公告)号:US20250020938A1

    公开(公告)日:2025-01-16

    申请号:US18902030

    申请日:2024-09-30

    Applicant: Apple Inc.

    Abstract: A head-mounted device may include a first display having a first projector and a first waveguide, a second display having a second projector and a second waveguide, first and second cameras, an optical sensor that couples the first waveguide to the second waveguide, and position sensors mounted to the first and second cameras and the optical sensor. The optical sensor may gather image sensor data from first image light propagating in the first waveguide and second image light propagating in the second waveguide. The cameras may capture real-world images. The position sensors may gather position measurements. Control circuitry may calibrate optical misalignment in the device by adjusting the first and/or second image light based on the image sensor data, the position measurements, and/or the world light.

    Electronic Devices With Environmental Sealing

    公开(公告)号:US20250093665A1

    公开(公告)日:2025-03-20

    申请号:US18773124

    申请日:2024-07-15

    Applicant: Apple Inc.

    Abstract: A head-mounted device may include display projectors and waveguides. The head-mounted device may have a head-mounted housing in which the display projectors and waveguides are mounted. The head-mounted housing may have a housing wall forming cavities containing the display projectors and waveguides. A moisture-impermeable cover may be used to cover and protect each of the display projectors. The cover may be formed from an elastomeric sock. The sock may have an opening that allows the display projector to emit image light that is received by a corresponding one of waveguides. Partitions may also be formed in the housing to block moisture and other contaminants. An elastomeric gasket or bellows serving as a partition may be used to separate a display projector cavity from a waveguide cavity.

    Storage Systems with Calibration Capabilities

    公开(公告)号:US20250086834A1

    公开(公告)日:2025-03-13

    申请号:US18727533

    申请日:2023-01-18

    Applicant: Apple Inc.

    Abstract: A system may include a head-mounted device and a storage case for storing and calibrating the head-mounted device. The storage case may include a recess that receives the head-mounted device. The case may include optically detectable features for calibrating cameras in the head-mounted device. For example, the case may include optical charts, physical fiducials, and/or reflective calibration spheres for calibrating inward-facing cameras on the head-mounted device such as gaze tracking image sensors. For calibrating outward-facing cameras on the head-mounted device that have larger focal distances, the case may include a light source and a diffractive optical element to create a light pattern that virtually originates from infinity. The case may include cameras for capturing images of displayed images on the head-mounted device to determine if a waveguide and display in the head-mounted device are misaligned.

    Display Devices with Optical Sensor Waveguide

    公开(公告)号:US20250164813A1

    公开(公告)日:2025-05-22

    申请号:US19034049

    申请日:2025-01-22

    Applicant: Apple Inc.

    Abstract: An electronic device may include a first projector, a first waveguide, a second projector, a second waveguide, and an optical sensor that couples the first waveguide to the second waveguide. A third waveguide may overlap the first waveguide, the second waveguide, and the optical sensor. The third waveguide may direct first image light from the first waveguide to the optical sensor and may direct second image light from the second waveguide to the optical sensor. The optical sensor may gather image sensor data from first image light and the second image light. The image sensor data may be free from errors in the first image light relative to the second image light associated with forces applied around the optical sensor. Control circuitry may calibrate optical misalignment in the device by adjusting the first and/or second image light based on the image sensor data.

    Systems With Position Sensors
    5.
    发明公开

    公开(公告)号:US20240210712A1

    公开(公告)日:2024-06-27

    申请号:US18435103

    申请日:2024-02-07

    Applicant: Apple Inc.

    Abstract: A head-mounted device such as a pair of glasses may have a head-mounted housing. The head-mounted device may include displays such as projector displays and may include associated optical components. The optical components may include waveguides that are used in providing images received from the displays to corresponding eye boxes for viewing by a user. Changes in the relative orientation between the displays and waveguides may warp the images in the eye boxes. To compensate for this effect, control circuitry in the head-mounted device may use position sensors to measure the relative positions of the displays and waveguides. Image warping due to misalignment between the displays and waveguides may be removed by applying compensating image warping to the images being produced by the displays.

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