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公开(公告)号：US12066738B2
公开(公告)日：2024-08-20
申请号：US18460339
申请日：2023-09-01
发明人： Amit Bhowmick , Afsoon Jamali
IPC分类号： G02F1/29
CPC分类号： G02F1/29
摘要： A lens system may include a lens having a first electrode electrode layer, a second electrode layer, and a liquid crystal layer disposed between the first electrode layer and the second electrode layer. The lens may be divided into a plurality of lens segments that are concentrically arranged proceeding from a center to a radially outer periphery of the lens. An optical power of a first lens segment of the plurality of lens segments may be greater than an optical power of a second lens segment of the plurality of lens segments disposed radially outward relative to the first lens segment. Various other devices, systems, and methods are also disclosed.
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公开(公告)号：US20240272507A1
公开(公告)日：2024-08-15
申请号：US18523080
申请日：2023-11-29
发明人： Yasuo Morimoto , Afsoon Jamali , Li Zhang
IPC分类号： G02F1/163
CPC分类号： G02F1/163
摘要： A system may include a first transparent conductive active dimming (AD) layer deposited on a first transparent substrate. The first transparent conductive AD layer may include a minimum threshold level of electrical conductivity. The system may also include a second, different transparent conductive AD layer deposited on a second transparent substrate. The second transparent conductive AD layer may include a level of electrical conductivity that is below the minimum threshold level and may meet at least a minimum set of optical performance characteristics. The system may further include an insulative layer positioned between the first transparent conductive layer and the second transparent conductive layer, as well as an antenna feed connected to at least the first transparent conductive AD layer. The system may also include a controller configured to control power to the first and second transparent conductive AD layers. Various other apparatuses and mobile electronic devices are also disclosed.
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公开(公告)号：US20240069404A1
公开(公告)日：2024-02-29
申请号：US18298662
申请日：2023-04-11
IPC分类号： G02F1/29
CPC分类号： G02F1/29
摘要： A system includes (a) an optical device having a GRIN LC lens, the GRIN LC lens including a liquid crystal layer, (b) a sensor configured to assess an attribute of the liquid crystal layer, (c) a heat source, and (d) a controller configured to mediate heat flow between the heat source and the liquid crystal layer based on a signal provided by the sensor.
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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：US11803077B2
公开(公告)日：2023-10-31
申请号：US17173177
申请日：2021-02-10
发明人： Afsoon Jamali , Changwon Jang , Sandro Pintz
IPC分类号： G02F1/1335 , G02F1/1343
CPC分类号： G02F1/133512 , G02F1/133526 , G02F1/134309
摘要： A device includes a liquid crystal (“LC”) layer having a gradient refractive index distribution. The device also includes an electrode layer coupled to the LC layer. The electrode layer includes a plurality of electrodes separated by one or more gaps masked by a light shielding material.
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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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公开(公告)号：US20220398953A1
公开(公告)日：2022-12-15
申请号：US17721079
申请日：2022-04-14
发明人： Jasmine Soria Sears , Afsoon Jamali
摘要： A device includes a display including multiple pixels, each pixel having an optical emitter to provide at least one light beam from an image. The device also includes an optical element to relay light beams from the display to a viewer through an eyebox, the eyebox limiting an area that includes a pupil of the viewer and a varifocal assembly to direct, through the eyebox, light beams having a first and second mutually orthogonal polarization states, according to a desired mode of operation of the device, and associated with a first and second field of view of the image in a focused mode of operation of the device, and an immersive mode of operation of the device, respectively. A memory storing instructions and a processor to execute the instructions to cause the device to perform a method for adjusting between the immersive mode and the focused mode are also provided.
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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：US20240168433A1
公开(公告)日：2024-05-23
申请号：US18105223
申请日：2023-02-02
发明人： Changwon Jang , Afsoon Jamali , Zhimin Shi
IPC分类号： G03H1/22 , G02B27/00 , G02B27/01 , G02F1/1335 , G06F1/16
CPC分类号： G03H1/2286 , G02B27/0093 , G02B27/0172 , G02F1/1335 , G03H1/2294 , G06F1/163 , G02B2027/0174 , G03H2001/0224 , G03H2223/16 , G03H2223/23 , G03H2223/24 , G03H2225/34
摘要： A holographic display includes an illuminator, a spatial light modulator (SLM) coupled to the illuminator, and an ocular lens coupled to the SLM. The illuminator provides a wide-area illuminating light beam to illuminate the SLM with a spatially homogeneous beam of light. The illuminator may include a slab waveguide with an evanescent out-coupler, or a beam expander based on a diffraction grating with an oblique angle of incidence and a near-normal angle of diffraction of the illuminating light. A low-pass spatial filter may be provided to filter out higher diffraction orders of the illuminating light diffracted on the SLM.
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公开(公告)号：US20240168290A1
公开(公告)日：2024-05-23
申请号：US18105218
申请日：2023-02-02
发明人： Changwon Jang , Afsoon Jamali , Zhimin Shi
IPC分类号： G02B27/01 , G02F1/1335 , G02F1/1343 , G03H1/22 , G06F1/16
CPC分类号： G02B27/0172 , G02F1/1335 , G02F1/134363 , G03H1/2286 , G03H1/2294 , G06F1/163 , G02B27/0093 , G02B2027/0174
摘要： A holographic display includes an illuminator, a spatial light modulator (SLM) coupled to the illuminator, and an ocular lens coupled to the SLM. The SLM includes sequentially coupled first and second pixelated SLM panels for spatially modulating the illuminating light beam in amplitude and phase. At least one of the SLM panels may include a liquid crystal (LC) panel, such as an in-plane switching (IPS) panel. At least one of the SLM panels may include an array of piston-type micromirrors.
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