Meta Platforms Technologies, LLC

Facebook Technologies, LLC

Afsoon Jamali

Douglas Robert Lanman

Changwon Jang

Jasmine Soria Sears

Lu Lu

Brian M Wheelwright

Wai Sze Tiffany Lam

Sandro Hermann Pintz

Yang Zhao

Andrew Maimone

Nathan Seigo Matsuda

Yusufu Njoni Bamaxam Sulai

Gareth John Valentine

Alireza Moheghi

Yingfei Jiang

Gang Li

Zhimin Shi

Sho Nakahara

Robin Sharma

Wanli Chi

Adrian Travis

Junren Wang

Yun-Han Lee

Oleg Yaroshchuk

Arman Boromand

Chenrun Feng

Xi Wu

Amit Bhowmick

Olga Vladimirovna Barykina-tassa

Jacques Gollier

Ying Geng

Scott Charles McEldowney

Francis Lawrence Leard

Kurt Jenkins

Karol Constantine Hatzilias

Mengfei Wang

Nihar Ranjan Mohanty

Spencer Allan Wells

Ming Lei

Marina Zannoli

Christopher Bruce Stipe

Hao Yu

Ian Erkelens

Nicholas John Diorio, Jr

Eric Stratton

Christopher Stipe

Carl Chancy

Jonathan William Onorato

Kai-Han Chang

Giseung Bang

Brent Bollman

Chih-Lan Chuang

An optical device includes a first electrode and a medium that includes ferroelectric liquid crystals and chiral dopants. The medium is located adjacent to the first electrode. The optical device may also include a second electrode distinct and separate from the first electrode. The optical device may be used as an optical dimming device, controlling an amount light passing through the optical device based on a voltage gradient provided to the optical device.

Optical dimming devices with chiral ferroelectric nematic liquid crystal

The disclosed system may include at least one gradient-index liquid crystal lens. The system may include a selection module that selects a viewing angle. The system may also include an adjustment module that dynamically adjusts a phase reset property of the gradient-index liquid crystal lens in response to the selected viewing angle. Various other devices, systems, and methods are also disclosed.

Gradient-index liquid crystal lenses with adjustable flyback regions

An optical device includes a first set of one or more electrodes, a second set of one or more electrodes distinct and separate from the first set of one or more electrodes, and a medium that includes liquid crystal physical gel. The medium is located between the first set of one or more electrodes and the second set of one or more electrodes. The optical device may operate as an optical dimming device, which may be used in head-mounted display devices or as dimmable windows or shutters.

Dimming devices with pixelated liquid crystal physical gels

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.

GRIN LC lens design with variable resistance electrode

A varifocal liquid lens includes a body filled with two different fluids separated by an interface of a variable curvature across a clear aperture of the varifocal liquid lens. At least one of the first or second fluids is birefringent, such that a refractive index difference between the first and second fluids and resulting optical power of the varifocal liquid lens is dependent on polarization of impinging light. At a first light polarization, the first and second fluids may be matched in refractive index, while at a second, orthogonal light polarization, the first and second fluids may be mismatched in refractive index, whereby the first interface between the first and second fluids may have a variable, non-zero optical power for the second polarization while having a substantially non-variable, zero optical power for the first polarization of light.

Polarization-selective varifocal liquid lens

An optical assembly is configured to receive visible scene light at the backside of the optical assembly and to direct the visible scene light on an optical path toward the eyeward side. The optical assembly includes a dimming element disposed on the optical path, where the dimming element includes a photochromic material that is configured to darken in response to exposure to a range of light wavelengths. A display layer is disposed on the optical path between the eyeward side of the optical assembly and the dimming element. The display layer is configured to direct visible display light toward the eyeward side and also to direct activation light to the dimming element, where the activation light is within the range of light wavelengths to activate a darkening of the photochromic material to dim the visible scene light.

Dimming control with display-directed activation light for an optical assembly

A device includes a first lens configured to provide a first optical power that is variable within a first optical power adjustment range at a first step resolution. The device also includes a second lens coupled with the first lens and including a deformable member that is deformable to vary an optical power of the second lens. The second lens is configured to provide a second optical power that is variable within a second optical power adjustment range at a second step resolution, the second step resolution being smaller than the first step resolution.

Hybrid varifocal device and system

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.

Polarization-based processing of unpolarized image light

An optical assembly includes an active optical component. The active optical component includes an activation layer located between two electrodes, such as a first electrode and a second electrode distinct and separate from the first electrode. The active optical component also includes one or more substrates for providing mechanical support for at least one of the two electrodes. In some configurations, the optical assembly includes a first substrate for providing mechanical support for the first electrode, and a second substrate for providing mechanical support for the second electrode.

Optical devices with active components coupled with passive components

An apparatus for a pancake lens with integration accommodation may include a beamsplitter, a first lens, a reflective polarizer, and a second lens, where the second lens includes at least one planar module embedded within the second lens. Other apparatuses, systems, and methods are also disclosed.

Pancake lenses with integrated accommodation

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.

Gradient-index liquid crystal lens having lens segments with optical power gradient

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.

Volumetric display including liquid crystal-based lenses

An optical element includes a first boundary layer and a second boundary layer. A solution is disposed between the first boundary layer and the second boundary layer. The solution includes liquid crystals co-mingled with oblong photochromic dye molecules. The photochromic dye molecules are matched to the liquid crystals to offset a decrease in absorption of the photochromic dye molecules in response to a temperature increase of the photochromic dye molecules.

Photochromic dye and liquid crystal optical element

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.

Optical system using segmented phase profile liquid crystal lenses

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Redmond, WA, United States of America

Afsoon Jamali