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公开(公告)号：US20240264425A1
公开(公告)日：2024-08-08
申请号：US18640255
申请日：2024-04-19
申请人： Apple Inc.
发明人： Zachary A. Granger , Ran He , Graham B. Myhre , Francois R. Jacob
CPC分类号： G02B25/001 , G02C7/02
摘要： A head-mounted display may include a display system and an optical system that are supported by a housing. The optical system may be a catadioptric optical system having a removable lens element and a non-removable lens element. The optical system may include a quarter wave plate that is coated to the non-removable lens element without an intervening adhesive layer. The optical system may further include a reflective polarizer and a linear polarizer. The removable lens element may be selectively attached to the optical system. The removable lens element may be separated from a non-removable lens element by an air gap when the removable lens element is attached to the optical system. The removable lens element may have a convex curved surface that conforms to a concave curved surface of the non-removable lens element.
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公开(公告)号：US12019238B2
公开(公告)日：2024-06-25
申请号：US16089006
申请日：2017-06-06
申请人： Apple Inc.
发明人： Graham B. Myhre , Eric J. Hansotte , Guolin Peng , Hyungryul Choi , Se Baek Oh , Paul Gelsinger-Austin
CPC分类号： G02B27/0172 , G02B6/0023 , G02B6/0035 , G02B2027/0123 , G02B2027/0174 , G02B2027/0178
摘要： An electronic device may include a display system for presenting images close to a user's eyes. The display system may include a display unit that directs light and an optical system that redirects the light from the display unit towards a user's eyes. The optical system may include an input coupler and an output coupler formed on a waveguide. The input coupler may redirect light from the display unit so that it propagates in the waveguide towards the output coupler. The output coupler may redirect the light from the input coupler so that it exits the waveguide towards the user's eyes. A light-redirecting element may be used to redirect edge light that would otherwise be outside of the user's field of view towards the user's eyes.
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公开(公告)号：US11163157B1
公开(公告)日：2021-11-02
申请号：US15264048
申请日：2016-09-13
申请人： Apple Inc.
发明人： Graham B. Myhre , Hyungryul J. Choi
摘要： A vehicle may have a light-field head-up display that produces a light-field output allowing a viewer in the vehicle to observe three-dimensional content. An array of light-field display units and corresponding lenses may be used to direct the light-field output towards the viewer. The head-up display may have a transmissive display such as a liquid crystal display or other display with an array of backlit pixels. The pixels may have subpixels of different colors and may have elongated shapes extending along a given dimension. Lenticular lenses in the transmissive display that overlap the pixels may extend along the given dimension. A directional backlight may be used to adjust the direction of the light-field output produced by a light-field display unit. The directional backlight may be adjusted to alternately provide light-field output to the left and right eyes of a viewer.
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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
申请人： Apple Inc.
发明人： Hyungryul Choi , Lei Zhao , Chaohao Wang , Enkhamgalan Dorjgotov , Shih-Chyuan Fan Jiang , Zhibing Ge , Graham B. Myhre
IPC分类号： G02B27/01 , G02F1/1335 , G02F1/1343 , G02F1/1337
摘要： 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：US10997948B2
公开(公告)日：2021-05-04
申请号：US16560093
申请日：2019-09-04
申请人： Apple Inc.
发明人： Cheng Chen , Nicolas P. Bonnier , Graham B. Myhre , Jiaying Wu
摘要： A head-mounted device may include a display that generates content and an optical system through which the content is viewable. The head-mounted device may include a lighting system that illuminates a periphery of the optical system. When the user places the device on his or her head in a brightly lit environment, control circuitry may operate the lighting system to provide bright illumination to the user's peripheral vision. The lighting system may gradually decrease in brightness until the user transitions from a bright-adapted state to a dark-adapted state. When the user is partially or fully dark-adapted, the lighting system may be turned off and the display may be turned on. In some arrangements, an ambient light sensor may measure ambient light conditions outside of the electronic device and the control circuitry may control the lighting system based on the ambient lighting conditions.
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公开(公告)号：US10955724B2
公开(公告)日：2021-03-23
申请号：US15931430
申请日：2020-05-13
申请人： Apple Inc.
摘要： An electronic device such as a head-mounted device may have displays that are viewable by the eyes of a viewer through adjustable lenses. The adjustable lenses may be liquid crystal lenses. A camera and other sensors in the head-mounted device may monitor the eyes of the user and gather other information. Control circuitry in the head-mounted device may control the adjustable lenses based on measured characteristics of the eyes of the user such as interpupillary distance and direction-of-view. The control circuitry may match the distance between the centers of the adjustable lenses to the measured interpupillary distance and may align the lens centers with the measured direction-of-view. The adjustable lenses may have transparent electrodes that are supplied with time-varying control signals by the control circuitry.
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公开(公告)号：US20210041705A1
公开(公告)日：2021-02-11
申请号：US17082736
申请日：2020-10-28
申请人： Apple Inc.
发明人： James E. Pedder , Igor Stamenov , Cheng Chen , Enkhamgalan Dorjgotov , Graham B. Myhre , Victoria C. Chan , Xiaonan Wen , Peng Lv , Yuan Li , Yu Horie , Siddharth S. Hazra
摘要： A lens module in a head-mounted device may include a fluid-filled chamber, a semi-rigid lens element that at least partially defines the fluid-filled chamber, and at least one actuator configured to selectively bend the semi-rigid lens element. The semi-rigid lens element may become rigid along a first axis when the lens element is curved along a second axis perpendicular to the first axis. Six actuators that are evenly distributed around the periphery of the semi-rigid lens element may be used to control the curvature of the semi-rigid lens element. The semi-rigid lens element may initially be planar or non-planar. For example, the semi-rigid lens element may initially have a spherically convex surface and a spherically concave surface. A tunable spherical lens may be incorporated into the lens module to offset a parasitic spherical lens power from the semi-rigid lens element.
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公开(公告)号：US10852553B2
公开(公告)日：2020-12-01
申请号：US16520200
申请日：2019-07-23
申请人： Apple Inc.
发明人： James E. Pedder , Igor Stamenov , Cheng Chen , Enkhamgalan Dorjgotov , Graham B. Myhre , Victoria C. Chan , Xiaonan Wen , Peng Lv , Yuan Li , Yu Horie , Siddharth S. Hazra
摘要： A lens module in a head-mounted device may include a fluid-filled chamber, a semi-rigid lens element that at least partially defines the fluid-filled chamber, and at least one actuator configured to selectively bend the semi-rigid lens element. The semi-rigid lens element may become rigid along a first axis when the lens element is curved along a second axis perpendicular to the first axis. Six actuators that are evenly distributed around the periphery of the semi-rigid lens element may be used to control the curvature of the semi-rigid lens element. The semi-rigid lens element may initially be planar or non-planar. For example, the semi-rigid lens element may initially have a spherically convex surface and a spherically concave surface. A tunable spherical lens may be incorporated into the lens module to offset a parasitic spherical lens power from the semi-rigid lens element.
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公开(公告)号：US20240302664A1
公开(公告)日：2024-09-12
申请号：US18670007
申请日：2024-05-21
申请人： Apple Inc.
发明人： Graham B. Myhre , Eric J. Hansotte , Guolin Peng , Hyungryul Choi , Se Baek Oh , Paul Gelsinger-Austin
IPC分类号： G02B27/01
CPC分类号： G02B27/0172 , G02B6/0023 , G02B6/0035 , G02B2027/0123 , G02B2027/0174 , G02B2027/0178
摘要： An electronic device may include a display system for presenting images close to a user's eyes. The display system may include a display unit that directs light and an optical system that redirects the light from the display unit towards a user's eyes. The optical system may include an input coupler and an output coupler formed on a waveguide. The input coupler may redirect light from the display unit so that it propagates in the waveguide towards the output coupler. The output coupler may redirect the light from the input coupler so that it exits the waveguide towards the user's eyes. A light-redirecting element may be used to redirect edge light that would otherwise be outside of the user's field of view towards the user's eyes.
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公开(公告)号：US11803056B2
公开(公告)日：2023-10-31
申请号：US16546157
申请日：2019-08-20
申请人： Apple Inc.
发明人： Guolin Peng , Eric J. Hansotte , Francesco Aieta , Graham B. Myhre , Hyungryul Choi , Nan Zhu , Paul J. Gelsinger-Austin , Se Baek Oh , Scott M. DeLapp , Bradley C. Steele
CPC分类号： G02B27/0172 , G02B27/12 , G02B27/14 , G02B2027/0174
摘要： An electronic device may have a display that emits image light, a waveguide, and an input coupler that couples the image light into the waveguide. Beam splitter structures may be embedded within the waveguide. The beam splitter structures may partially reflect the image light multiple times and may serve to generate replicated beams of light that are coupled out of the waveguide by an output coupler. The beam splitter structures may replicate the beams across two dimensions to provide an eye box with uniform-intensity light from the display across its area. The beam splitter structures may include stacked partially reflective beam splitter layers, sandwiched transparent substrate layers having different indices of refraction, a thick volume hologram interposed between substrate layers, or combinations of these or other structures. The reflectivity of the beam splitter structures may vary discretely or continuously across the lateral area of the waveguide.
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