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公开(公告)号：US12022054B2
公开(公告)日：2024-06-25
申请号：US17649436
申请日：2022-01-31
发明人： Afsoon Jamali , Yang Zhao , Wai Sze Tiffany Lam , Lu Lu , Douglas Robert Lanman
IPC分类号： H04N13/388 , G02F1/01 , G09G3/00 , H04N13/332 , H04N13/398
CPC分类号： H04N13/388 , G09G3/003 , H04N13/332 , H04N13/398 , G02F1/0136
摘要： A volumetric display may include a two-dimensional display; a varifocal optical system configured to receive image light from the two-dimensional display and focus the image light; and at least one processor configured to: control the two-dimensional display to cause a plurality of sub-frames associated with an image frame to be displayed by the display, wherein each sub-frame of the plurality of sub-frames includes a corresponding portion of image data associated with the image frame; and control the varifocal optical system to a corresponding focal state for each respective sub-frame.
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公开(公告)号：US11520149B2
公开(公告)日：2022-12-06
申请号：US17006584
申请日：2020-08-28
发明人： Yang Zhao , Douglas Robert Lanman
摘要： A display device includes a diffractive optical element and a tunable light source operable in different states including a first state and a second state. The tunable light source provides first light having a first wavelength while the tunable light source is in the first state and second light having a second wavelength, distinct from the first wavelength, while the tunable light source is in the second state. The first wavelength and the second wavelength correspond to a first color band. The diffractive optical element is positioned to receive and redirect the first light and receive and redirect the second light. The diffractive optical element has a first focal length for the first light and a second focal length, distinct from the first focal length, for the second light.
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公开(公告)号：US20230077228A1
公开(公告)日：2023-03-09
申请号：US17884510
申请日：2022-08-09
发明人： Ganghun KIM , Andrew MAIMONE , Alexander Jobe FIX , Robert Dale CAVIN , Hee Yoon LEE , Matthieu Charles Raoul LEIBOVICI , Brian WHEELWRIGHT , Douglas Robert Lanman
IPC分类号： G02B27/01 , G06T7/73 , G03H1/04 , A01N43/50 , A01N43/54 , A01N43/90 , A01N53/00 , C07D401/04 , C07D401/14 , C07D405/14 , C07D487/04 , C07D498/04
摘要： A system for making a holographic medium for use in generating light patterns for eye tracking includes a light source configured to provide light and a beam splitter configured to separate the light into a first portion of the light and a second portion of the light that is spatially separated from the first portion of the light. The system also includes a first set of optical elements configured to transmit the first portion of the light for providing a first wide-field beam onto an optically recordable medium and one or more diffractive optical elements configured to receive the second portion of the light and project a plurality of separate light patterns onto the optically recordable medium for forming the holographic medium.
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公开(公告)号：US11500217B2
公开(公告)日：2022-11-15
申请号：US16403140
申请日：2019-05-03
发明人： Afsoon Jamali , Brian Wheelwright , Yang Zhao , Yusufu Njoni Bamaxam Sulai , Douglas Robert Lanman
IPC分类号： G02B27/09 , G02B7/04 , G02B27/28 , G02F1/1335 , G02B27/01
摘要： An optical lens assembly and an optical system is provided. The optical lens assembly includes a first optical element including a partial reflector and a quarter-wave plate and a second optical element including a reflective polarizer. The first optical element and the second optical element form a cavity. The pancake lens assembly further includes a varifocal lens having an adjustable optical power, and the varifocal lens is disposed inside or outside the cavity.
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5.发明授权公开(公告)号：US11914160B2
公开(公告)日：2024-02-27
申请号：US17584200
申请日：2022-01-25
CPC分类号： G02B27/0179 , G02B27/0172 , G06F1/163 , G06F3/011 , G06F3/013 , G02B2027/0178 , G02B2027/0187
摘要： A head-mounted display device for providing images to a wearer includes a focus-supporting light projector and a beam steerer. The focus-supporting light projector is configured to project light for rendering images based at least on virtual reality contents and/or augmented reality contents. The light projected from the focus-supporting light projector corresponds to an image plane that is selected based at least in part on a position of a pupil of an eye of the wearer. The beam steerer is configured to change a path of the light projected from the focus-supporting light projector based on the position of the pupil of the eye of the wearer.
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公开(公告)号：US11860471B2
公开(公告)日：2024-01-02
申请号：US17239023
申请日：2021-04-23
发明人： Afsoon Jamali , Wanli Chi , Douglas Robert Lanman
IPC分类号： G02F1/1335 , G06T19/00 , G06F3/01 , G02B27/01 , G02B27/00
CPC分类号： G02F1/133526 , G02B27/0093 , G02B27/0172 , G06F3/013 , G06T19/006 , G02B2027/014
摘要： A system is provided. The system includes a display configured to output a virtual image. The system also includes a lens assembly optically coupled to the display and including a plurality of optical lenses. The system also includes a controller configured to selectively activate one or more of the plurality of optical lenses, determine a lens center shift between a center of the selectively activated one or more of the plurality of optical lenses and a center of the lens assembly, and determine an image shift based on the lens center shift for shifting the virtual image output from the display.
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公开(公告)号：US20230251489A1
公开(公告)日：2023-08-10
申请号：US18129620
申请日：2023-03-31
发明人： Yang Zhao , Afsoon Jamali , Junren Wang , Wai Sze Tiffany Lam , Lu Lu , Douglas Robert Lanman
CPC分类号： G02B27/0172 , G02F1/13718 , G03B13/36
摘要： A display system includes a source of unpolarized image light, and a stack of polarization-selective optical elements operable to switchably convert the unpolarized image light into two orthogonally polarized light beams, each of which being switchable in at least one beam characteristic. An output polarizer selects one of the two orthogonally polarized light beams for providing to a user. A depolarizer may be disposed between an electronic display emitting polarized light and the stack. The depolarizer may be in the form of an LC bilayer with randomized in-plane optic axis.
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8.发明公开公开(公告)号：US20230239456A1
公开(公告)日：2023-07-27
申请号：US17980342
申请日：2022-11-03
IPC分类号： H04N13/344 , G02B30/22 , G06F1/16 , H04N13/156 , H04N13/257
CPC分类号： H04N13/344 , G02B30/22 , G06F1/163 , H04N13/156 , H04N13/257 , H04N2013/0081
摘要： According to examples, a display system may include a head-mounted display (HMD) headset. The HMD may comprise at least one exterior-facing RBG camera mounted on a front face of the HMD and on a same visual plane of a user's eye. The at least one exterior-facing RBG camera may collects images for view synthesis. The HMD may include a processor, and a memory storing instructions, which when executed by the processor, cause the processor to provide view synthesis in accordance with a machine-learning (ML) based technique comprising at least one of the following: depth estimation, imaging to sharpening, forward splatting, disocclusion filtering, or fusion.
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公开(公告)号：US11454779B1
公开(公告)日：2022-09-27
申请号：US16530890
申请日：2019-08-02
摘要： A head-mounted display device includes a first set of one or more lenses and a first display configured to provide visual data through the first set of one or more lenses. The head-mounted display device further includes a first stepper motor mechanically coupled to the first display, and the first stepper motor is configured to move the first display along a first axis by rotating a rotatable component of the first stepper motor. The head-mounted display device further includes a first electronic controller configured to (i) determine a first position of the first display, (ii) receive information identifying a second position of the first display, and (iii) generate one or more electrical signals that cause the first stepper motor to move the first display from the first position to the second position along the first axis.
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公开(公告)号：US11733734B1
公开(公告)日：2023-08-22
申请号：US17323701
申请日：2021-05-18
发明人： Joyce S Fang , Nicholas Colonnese , Bruce A Cleary, III , Ryan Michael Ebert , Douglas Robert Lanman
CPC分类号： G06F1/163 , G02B27/0172 , G06F3/012 , G06F3/013
摘要： A head mounted display (HMD) includes a set of one or more lenses defining an optical axis, a display configured to project light through the set of the one or more lenses, a voice coil actuator coupled with the display and configured to move the display along the optical axis, and a first guide that is separate from the first voice coil actuator and coupled with the first display to guide the movement of the first display. The HMD additionally includes a set of one or more position sensors configured to determine a position of the display long the optical axis and an electronic controller configured to receive information identifying a reference position of the display along the optical axis and generate one or more electrical signals for initiating a movement of the first display toward the first reference point along the optical axis.
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