公开(公告)号：US11619815B2

公开(公告)日：2023-04-04

申请号：US16733092

申请日：2020-01-02

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Gang Li ,  Changwon Jang ,  Giseung Bang ,  Andrew Maimone ,  Mengfei Wang ,  Afsoon Jamali ,  Lu Lu ,  Hao Yu

IPC: G02B27/01

Abstract: An optical assembly includes a beam steering device and a holographic optical element. The beam steering device is switchable between different states including a first state and a second state. The beam steering device includes a first polarization-selective optical element and a first tunable optical retarder optically coupled with the first polarization-selective optical element. The holographic optical element is positioned relative to the beam steering device for receiving light from the beam steering device and projecting a first light pattern while the beam steering device is in the first state and a second light pattern distinct from the first light pattern while the beam steering device is in the second state.

公开(公告)号：US20230028165A1

公开(公告)日：2023-01-26

申请号：US17722138

申请日：2022-04-15

Applicant: Meta Platforms Technologies, LLC

Inventor： Jasmine Soria Sears ,  Afsoon Jamali

IPC: G02B27/01 ,  G02B26/04 ,  G02F1/00

Abstract: A headset for augmented reality applications is provided. The headset includes at least one eyepiece configured to provide a see-through image to a user via a transparent optical component, and to provide an artificial image through a display, and a dimming shutter configured to adjust a transparency level of the transparent optical component. The dimming shutter further includes an active liquid crystal layer configured to adjust a transparency level according to an electrical power provided between two electrodes, and a photoactive layer configured to adjust the transparency level upon absorption of an ultraviolet radiation for a selected period of time. A default orientation of a host material in the active liquid crystal layer may be in a dark state or in a clear state, when no electrical power is provided. A method and a memory storing instructions to execute the method for use of the above device are also provided.

公开(公告)号：US11561510B1

公开(公告)日：2023-01-24

申请号：US16517535

申请日：2019-07-19

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew Maimone ,  Gang Li ,  Afsoon Jamali ,  Changwon Jang

IPC: G03H1/08 ,  G03H1/22 ,  G06F3/01 ,  G03H1/02 ,  G03H1/00

Abstract: An optical device includes a light source configured to provide a light beam. The optical device includes a light source configured to generate a light beam, and a spatial light modulator (“SLM”) configured to modulate the light beam to provide a hologram for generating a display image. The optical device includes a polarization-selective steering assembly configured to provide a plurality of steering states for the modulated light beam. The optical device includes an image combiner configured to focus the modulated light beam steered by the polarization-selective steering assembly to generate an array of spots at an eye-box of the optical device.

公开(公告)号：US11561437B2

公开(公告)日：2023-01-24

申请号：US17163414

申请日：2021-01-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Afsoon Jamali ,  Yingfei Jiang

IPC: G02F1/13363

Abstract: An optical element is provided. The optical element includes a positive-C film including a liquid crystal (“LC”) layer. The optical element also includes a positive-A film. The optical element also includes a negative biaxial retardation film disposed between the positive-A film and the positive-C film.

公开(公告)号：US11500217B2

公开(公告)日：2022-11-15

申请号：US16403140

申请日：2019-05-03

Applicant: Meta Platforms Technologies, LLC

Inventor： Afsoon Jamali ,  Brian Wheelwright ,  Yang Zhao ,  Yusufu Njoni Bamaxam Sulai ,  Douglas Robert Lanman

IPC: G02B27/09 ,  G02B7/04 ,  G02B27/28 ,  G02F1/1335 ,  G02B27/01

Abstract: 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.

公开(公告)号：US12287484B2

公开(公告)日：2025-04-29

申请号：US18129620

申请日：2023-03-31

Applicant: Meta Platforms Technologies, LLC

Inventor： Yang Zhao ,  Afsoon Jamali ,  Junren Wang ,  Wai Sze Tiffany Lam ,  Lu Lu ,  Douglas Robert Lanman

IPC: G02B27/01 ,  G02F1/137 ,  G03B13/36

Abstract: 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.

公开(公告)号：US20240264442A1

公开(公告)日：2024-08-08

申请号：US18512560

申请日：2023-11-17

Applicant: Meta Platforms Technologies, LLC

Inventor： Afsoon Jamali ,  Robin Sharma ,  Changwon Jang ,  Dmytro Y Reznikov

IPC: G02B27/01 ,  G02B3/00 ,  G02B3/08 ,  G02B27/28

CPC classification number: G02B27/0172 ,  G02B3/0087 ,  G02B3/08 ,  G02B27/28 ,  G02B2027/0178

Abstract: A display device may include a display screen having a plurality of light emitting elements and a lens system that receives light emitted from the display screen. The lens system may include a lens having a liquid crystal module, an incident side surface on a first side of the liquid crystal module, and an exit side surface on a second side of the liquid crystal module, wherein at least one of the incident side surface and the exit side surface comprises a curved surface. Various other devices, systems, and methods are also disclosed.

公开(公告)号：US20240168344A1

公开(公告)日：2024-05-23

申请号：US18518529

申请日：2023-11-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Francis Lawrence Leard ,  Javier Rodriguez De Luis ,  Afsoon Jamali ,  Olga Vladimirovna Barykina-Tassa

IPC: G02F1/1343 ,  G02F1/155

CPC classification number: G02F1/13439 ,  G02F1/155 ,  G02F1/134309 ,  G02F2202/06

Abstract: An electronic device includes one or more antennas and one or more optoelectronic components. The one or more optoelectronic components include one or more electrodes. The one or more electrodes have a specified sheet resistance. The one or more electrodes may include aluminum doped zinc oxide, sub-wavelength-roughened electrodes, nano-imprinted electrodes, electroplated electrodes, indium tin oxide or one or more boundary layers. The one or more boundary layers may include one or more layers of indium molybdenum oxide and/or one or more layers of indium niobium oxide. The one or more electrodes may be aligned via field-induced alignment. The one or more antennas may be positioned in a first layer of the electronic device and the one or more optoelectronic components may be positioned in a second layer of the electronic device distinct from the first layer. The electronic device may be used in a head-mounted display device.

公开(公告)号：US20240085756A1

公开(公告)日：2024-03-14

申请号：US18460339

申请日：2023-09-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Amit Bhowmick ,  Afsoon Jamali

IPC: G02F1/29

CPC classification number: G02F1/29

Abstract: 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.

公开(公告)号：US20240036432A1

公开(公告)日：2024-02-01

申请号：US18162175

申请日：2023-01-31

Applicant: Meta Platforms Technologies, LLC

Inventor： Afsoon Jamali ,  Changwon Jang ,  Zhimin Shi ,  Sho Nakahara ,  Sandro Pintz ,  Amit Bhowmick

IPC: G02F1/29

CPC classification number: G02F1/29 ,  G02F2201/122 ,  G02F2202/16

Abstract: A device includes a primary electrode, a secondary electrode overlapping at least a portion of the primary electrode, and a liquid crystal layer disposed between the primary electrode and the secondary electrode, where the primary electrode has a spatially variable electrical resistance.