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公开(公告)号：US11822078B2
公开(公告)日：2023-11-21
申请号：US16488806
申请日：2018-02-28
Applicant: Apple Inc.
Inventor： Hyungryul Choi , Eric J. Hansotte , Guolin Peng
CPC classification number: G02B27/0172 , G02B5/32 , G02B6/005 , G02B6/0023 , G02B6/0076 , G02B27/281 , G02B2027/014 , G02B2027/0174
Abstract: An electronic device such as a head-mounted display may have a display system that produces images. The display system may have one or more pixel arrays (26-1, 26-2) such as liquid-crystal-on-silicon pixel arrays. Images from the display system may be coupled into a waveguide (116) by an input coupler system (114X, 114Y) and may be coupled out of the waveguide in multiple image planes using an output coupler system (120X, 120Y). The input and output coupler systems may include single couplers, stacks of couplers, and tiled arrays of couplers. Multiplexing techniques such as wavelength multiplexing, polarization multiplexing, time-division multiplexing, multiplexing with image light having different ranges of angular orientations, and/or tunable lens techniques may be used to present images to a user in multiple image planes.
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公开(公告)号：US20210405379A1
公开(公告)日：2021-12-30
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
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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公开(公告)号：US20210405378A1
公开(公告)日：2021-12-30
申请号：US17474349
申请日：2021-09-14
Applicant: Apple Inc.
Inventor： Hyungryul Choi , Bradley C. Steele , Brian S. Lau , Cameron A. Harder , David A. Kalinowski , Eric J. Hansotte , Guolin Peng , Scott M. DeLapp , Vikrant Bhakta , Jonathan C. Moisant-Thompson
Abstract: An electronic device may include an optical combiner with a waveguide. The waveguide may have an output coupler that directs high resolution light towards an eye box within a field of view. Peripheral light sources may provide low resolution peripheral light to the eye box about a periphery of the field of view. The peripheral light sources may be mounted to a frame for the waveguide, to an additional substrate mounted to the frame and overlapping the waveguide, in a low resolution projector that projects the peripheral light towards reflective structures in the additional substrate, or in a display module that produces the high resolution light. The optical combiner may overlay real world light with the high resolution light and the low resolution peripheral light.
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公开(公告)号：US11099386B1
公开(公告)日：2021-08-24
申请号：US16283550
申请日：2019-02-22
Applicant: Apple Inc.
Inventor： Hyungryul Choi , Lei Zhao , Chaohao Wang , Enkhamgalan Dorjgotov , Shih-Chyuan Fan Jiang , Zhibing Ge , Graham B. Myhre
IPC: G02B27/01 , G02F1/1335 , G02F1/1343 , G02F1/1337
Abstract: An optical system may include equipment with a housing that is configured to receive external equipment such as a cellular telephone. The external equipment may have a display mounted on a front face of the external equipment and may have additional components such as a front-facing camera. Communications circuitry in the equipment may support wired and wireless communications with the external equipment. An optical combiner in the equipment may be used to combine display image light emitted from pixels in the display with real-world image light received from external objects. The optical combiner may have a reflector with a concave lens shape that focuses light from the display towards eye boxes in which a viewer's eyes are located. The reflector may be a partial mirror or a reflective polarizer. The reflective polarizer and additional components may be used in implementing a tunable tint layer.
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公开(公告)号：US20200310121A1
公开(公告)日：2020-10-01
申请号：US16488806
申请日：2018-02-28
Applicant: Apple Inc.
Inventor： Hyungryul Choi , Eric J. Hansotte , Guolin Peng
Abstract: An electronic device such as a head-mounted display may have a display system that produces images. The display system may have one or more pixel arrays (26-1, 26-2) such as liquid-crystal-on-silicon pixel arrays. Images from the display system may be coupled into a waveguide (116) by an input coupler system (114X, 114Y) and may be coupled out of the waveguide in multiple image planes using an output coupler system (120X, 120Y). The input and output coupler systems may include single couplers, stacks of couplers, and tiled arrays of couplers. Multiplexing techniques such as wavelength multiplexing, polarization multiplexing, time-division multiplexing, multiplexing with image light having different ranges of angular orientations, and/or tunable lens techniques may be used to present images to a user in multiple image planes.
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Patent Agency Ranking
公开(公告)号：US20200004020A1
公开(公告)日：2020-01-02
申请号：US16409681
申请日：2019-05-10
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Hyungryul Choi , Guolin Peng , Scott M. DeLapp
Abstract: An electronic device may have a spatial light modulator. Control circuitry in the electronic device may use the spatial light modulator to generate images. A light source may be used to produce illumination for the spatial light modulator. An optical system may direct the illumination onto the spatial light modulator and may direct corresponding reflected image light towards eye boxes for viewing by a user. Head-mounted support structures may be used to support the spatial light modulator, light source, and optical system. The light source may include light-emitting elements such as light-emitting diodes or lasers. Multiple light-emitting elements may be provided in the light source in a one-dimensional or two-dimensional array. During operation, the control circuitry can individually adjust the light-emitting elements.
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公开(公告)号：US12298506B2
公开(公告)日：2025-05-13
申请号：US17474349
申请日：2021-09-14
Applicant: Apple Inc.
Inventor： Hyungryul Choi , Bradley C. Steele , Brian S. Lau , Cameron A. Harder , David A. Kalinowski , Eric J. Hansotte , Guolin Peng , Scott M. DeLapp , Vikrant Bhakta , Jonathan C. Moisant-Thompson
Abstract: An electronic device may include an optical combiner with a waveguide. The waveguide may have an output coupler that directs high resolution light towards an eye box within a field of view. Peripheral light sources may provide low resolution peripheral light to the eye box about a periphery of the field of view. The peripheral light sources may be mounted to a frame for the waveguide, to an additional substrate mounted to the frame and overlapping the waveguide, in a low resolution projector that projects the peripheral light towards reflective structures in the additional substrate, or in a display module that produces the high resolution light. The optical combiner may overlay real world light with the high resolution light and the low resolution peripheral light.
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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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公开(公告)号：US12105287B1
公开(公告)日：2024-10-01
申请号：US17373190
申请日：2021-07-12
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Guolin Peng , Hyungryul Choi , Scott M. DeLapp
CPC classification number: G02B27/0172 , G02B6/0016 , G02B6/003 , G02B26/0833 , G02B27/0081 , G02B2027/014
Abstract: A display having a reflective display panel may provide image light to an eye box. The panel may include mirrors rotatable between first and second angles. The mirrors may take a non-zero time period to transition between the first and second angles. During the non-zero time period, the light source may emit pulses of illumination. The mirrors may reflect the pulses of illumination as offset pupils of image light. The mirrors may be at respective intermediate angles while reflecting each of the pulses of illumination. The mirrors may toggle between the first and second angles at a sufficiently fast rate such that the offset pupils form an effective pupil that is expanded in at least one dimension. If desired, the offset pupils may be used to display virtual objects in different focal planes at the eye box.
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公开(公告)号：US12050322B2
公开(公告)日：2024-07-30
申请号：US18152012
申请日：2023-01-09
Applicant: Apple Inc.
Inventor： Vikrant Bhakta , Guolin Peng , Hyungryul Choi , Scott M. DeLapp
CPC classification number: G02B27/0172 , G02B5/32 , G02B6/0018 , G02B6/0025 , G02B6/0031 , G02B6/005 , G02B26/0858 , G02B27/0093 , G02B27/1006 , G02B27/148 , G02F1/0045 , G02B2027/0174
Abstract: An electronic device may provide foveated images at an eye box. The device may have a first display module that produces a low resolution portion of the image and a second display module that produces a high resolution portion of the image. A reflective input coupling prism may be mounted to a waveguide. A steering mirror may overlap the prism. The mirror may receive the high resolution portion through the waveguide and the prism. The mirror may reflect the high resolution portion back into the waveguide and may be adjusted to shift a location of the high resolution portion within the image. For example, the steering mirror may adjust the position of the high resolution portion to align with the gaze direction at the eye box. A reflective surface of the prism may reflect the low resolution portion of the image into the waveguide.
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