Abstract: An augmented reality system includes a light source to generate a virtual light beam, the virtual light beam carrying information for a virtual object. The system also includes a light guiding optical element, the light guiding optical element allowing a first portion of a first real-world light beam to pass therethrough, where the virtual light beam enters the light guiding optical element, propagates through the light guiding optical element by substantially total internal reflection (TIR), and exits the light guiding optical element. The system further includes a lens disposed adjacent and exterior to a surface of the light guiding optical element, the lens comprising a light modulating mechanism to absorb a second portion of the real-world light beam and to allow the first portion of the real-world light to pass through the lens.

Abstract: Disclosed are dimming assemblies and display systems for reducing artifacts produced by optically-transmissive displays. A system may include a substrate upon which a plurality of electronic components are disposed. The electronic components may include a plurality of pixels, a plurality of conductors, and a plurality of circuit modules. The plurality of pixels may be arranged in a two-dimensional array, with each pixel having a two-dimensional geometry corresponding to a shape with at least one curved side. The plurality of conductors may be arranged adjacent to the plurality of pixels. The system may also include control circuitry electrically coupled to the plurality of conductors. The control circuitry may be configured to apply electrical signals to the plurality of circuit modules by way of the plurality of conductors.

Abstract: Embodiments shifts the color fields of a rendered image frame based on the eye tracking data (e.g. position of the user's pupils). An MR device obtains a first image frame having a set of color fields. The first image frame corresponds to a first position of the pupils of the viewer. The MR device then determines a second position of the pupils of the viewer based on, for example, data receive from an eye tracking device coupled to the MR device. The MR device generates, based on the first image frame, a second image frame corresponding to the second position of the pupils. The second image frame is generated by shifting color fields by a shift value based on the second position of the pupils of the viewer. The MR device transmits the second image frame to a display device of the MR device to be displayed thereon.

Abstract: An eye tracking system can include a first camera configured to capture a first plurality of visual data of a right eye at a first sampling rate. The system can include a second camera configured to capture a second plurality of visual data of a left eye at a second sampling rate. The second plurality of visual data can be captured during different sampling times than the first plurality of visual data. The system can estimate, based on at least some visual data of the first and second plurality of visual data, visual data of at least one of the right or left eye at a sampling time during which visual data of an eye for which the visual data is being estimated are not being captured. Eye movements of the eye based on at least some of the estimated visual data and at least some visual data of the first or second plurality of visual data can be determined.

Abstract: Methods of preparing an electrode material can include providing silicon particles, forming a mixture comprising the silicon particles dispersed in a solvent, and forming a suspension by adding metal alkoxide or metal aryloxide to the mixture. The methods can also include evaporating the solvent in the suspension to form metal alkoxide or metal aryloxide coated silicon particles. The methods can further include heating the coated silicon particles to form metal oxide coated silicon particles.

Abstract: Embodiments transform an image frame based on a position of pupils of a viewer to eliminate visual artefacts formed on an image frame displayed on a scanning-type display device. An MR system obtains a first image frame corresponding to a first view perspective associated with a first pupil position. The system receives data from an eye tracking device, determines a second pupil position, and generates a second image frame corresponding to a second view perspective associated with the second pupil position. A first set of pixels of the second image frame are shifted by a first shift value, and a second set of pixels of the second image frame are shifted by a second shift value, where the shift values are calculated based on at least the second pupil position. The system transmits the second image frame to a near-eye display device to be displayed thereon.

Abstract: Methods of forming a composite material film can include providing a layer comprising a carbon precursor and silicon particles on a sacrificial substrate. The methods can also include pyrolysing the carbon precursor to convert the precursor into one or more types of carbon phases to form the composite material film, whereby the sacrificial substrate has a char yield of about 10% or less.

Abstract: Methods of forming a composite material film can include providing a mixture comprising a precursor and silane-treated silicon particles. The methods can also include pyrolysing the mixture to convert the precursor into one or more carbon phases to form the composite material film with the silicon particles distributed throughout the composite material film.

Abstract: Embodiments shifts the color fields of a rendered image frame based on the eye tracking data (e.g. position of the user's pupils). An MR device obtains a first image frame having a set of color fields. The first image frame corresponds to a first position of the pupils of the viewer. The MR device then determines a second position of the pupils of the viewer based on, for example, data receive from an eye tracking device coupled to the MR device. The MR device generates, based on the first image frame, a second image frame corresponding to the second position of the pupils. The second image frame is generated by shifting color fields by a shift value based on the second position of the pupils of the viewer. The MR device transmits the second image frame to a display device of the MR device to be displayed thereon.

Abstract: Aspects of the present disclosure are directed towards responding to a touch gesture at a touch-enabled computing device. An interface control element may be presented at a first computing environment provided by a computing device. A touch gesture may be received at a touchscreen of the computing device, and it may be determined whether at least a portion of the touch gesture occurred at the interface control element. Based, at least in part, on whether at least a portion of the touch gesture occurred at the interface control element, a display of the first computing environment may be adjusted or information corresponding to the touch gesture may be transmitted to a second computing environment. The interface control element may be a preview pane.

Abstract: Embodiments shifts the color fields of a rendered image frame based on the eye tracking data (e.g. position of the user's pupils). An MR device obtains a first image frame having a set of color fields. The first image frame corresponds to a first position of the pupils of the viewer. The MR device then determines a second position of the pupils of the viewer based on, for example, data receive from an eye tracking device coupled to the MR device. The MR device generates, based on the first image frame, a second image frame corresponding to the second position of the pupils. The second image frame is generated by shifting color fields by a shift value based on the second position of the pupils of the viewer. The MR device transmits the second image frame to a display device of the MR device to be displayed thereon.

Abstract: Methods of forming electrochemical cells are described. In some implementations, the method can include providing an electrochemical cell having an electrode including electrochemically active material with at least about 20% to about 100% by weight of silicon. The method can include charging the electrochemical cell by providing a formation charge current at about 1 C or greater to the electrochemical cell. The method can also include discharging the electrochemical cell. In various implementations, substantially no rest of greater than about 5 minutes occurs between charging and discharging.

Abstract: An augmented reality system includes a light source to generate a virtual light beam, the virtual light beam carrying information for a virtual object. The system also includes a light guiding optical element, the light guiding optical element allowing a first portion of a first real-world light beam to pass therethrough, where the virtual light beam enters the light guiding optical element, propagates through the light guiding optical element by substantially total internal reflection (TIR), and exits the light guiding optical element. The system further includes a lens disposed adjacent and exterior to a surface of the light guiding optical element, the lens comprising a light modulating mechanism to absorb a second portion of the real-world light beam and to allow the first portion of the real-world light to pass through the lens.

Abstract: Methods and systems for forming electrochemical cells are provided. An electrochemical cell may be provided, with the electrochemical cell including a first electrode, a second electrode, a separator between the first electrode and the second electrode, and an electrolyte. At least the first electrode is a silicon-dominant electrode. A formation process may be used for the electrochemical cell, with the processing including at least a charge step that includes providing a formation charge current at greater than about 1C to the electrochemical cell, where providing the formation charge current includes charging to a partial formation.

Abstract: A method includes: receiving three-dimensional (3D) information generated by a first 3D system, the 3D information including images of a scene and depth data about the scene; identifying, using the depth data, first image content in the images associated with a depth value that satisfies a criterion; and generating modified 3D information by applying first shading regarding the identified first image content. The modified 3D information can be provided to a second 3D system. The scene can contain an object in the images, and generating the modified 3D information can include determining a surface normal for second image content of the object, and applying second shading regarding the second image content based on the determined surface normal. A portion of the object can have a greater depth value than another portion, and second shading can be applied regarding a portion of the images where the second portion is located.

Abstract: Silicon particles for active materials and electro-chemical cells are provided. The active materials comprising silicon particles described herein can be utilized as an electrode material for a battery. In certain embodiments, the composite material includes greater than 0% and less than about 90% by weight silicon particles, the silicon particles having an average particle size between about 10 nm and about 40 ?m, wherein the silicon particles have surface coatings comprising silicon carbide or a mixture of carbon and silicon carbide, and greater than 0% and less than about 90% by weight of one or more types of carbon phases, wherein at least one of the one or more types of carbon phases is a substantially continuous phase.

Abstract: A wearable display system includes a light projection system having one or more emissive microdisplays, e.g., micro-LED displays. The light projection system projects time-multiplexed left-eye and right-eye images, which pass through an optical router having a polarizer and a switchable polarization rotator. The optical router is synchronized with the generation of images by the light projection system to impart a first polarization to left-eye images and a second different polarization to right-eye images. Light of the first polarization is incoupled into an eyepiece having one or more waveguides for outputting light to one of the left and right eyes, while light of the second polarization may be incoupled into another eyepiece having one or more waveguides for outputting light to the other of the left and right eyes. Each eyepiece may output incoupled light with variable amounts of wavefront divergence, to elicit different accommodation responses from the user's eyes.

Abstract: Systems, methods, and devices of the various embodiments provide a hardware and software architecture enabling electrochemical impedance spectroscopy (“EIS”) to be performed on multiple electrochemical devices, such as fuel cells, at the same time without human interaction with the electrochemical devices and to use EIS to dynamically monitor the performance of a fuel cell system. Embodiment methods may include determining an impedance of a set of fuel cells using electrochemical impedance spectroscopy, determining an ohmic polarization of the set of fuel cells from the impedance, determining a concentration polarization of the set of fuel cells from the impedance, comparing the ohmic polarization of the set of fuel cells to a first threshold, comparing the concentration polarization of the set of fuel cells to a second threshold, and initiating a corrective action when the ohmic polarization is above the first threshold or when the concentration polarization is below the second threshold.

Abstract: Methods of forming electrochemical cells are described. In some embodiments, the method can include providing an electrochemical cell having an electrode with at least about 20% to about 99% by weight of silicon. The method can include providing a formation charge current at greater than about 1C to the electrochemical cell. Alternatively or additionally, the method can include providing a formation charge current at a substantially constant charge voltage to the electrochemical cell.

Abstract: Aspects of the present disclosure are directed towards responding to a touch gesture at a touch-enabled computing device. An interface control element may be presented at a first computing environment provided by a computing device. A touch gesture may be received at a touchscreen of the computing device, and it may be determined whether at least a portion of the touch gesture occurred at the interface control element. Based, at least in part, on whether at least a portion of the touch gesture occurred at the interface control element, a display of the first computing environment may be adjusted or information corresponding to the touch gesture may be transmitted to a second computing environment. The interface control element may be a preview pane.