Abstract: A vertical cavity surface emitting laser (VCSEL) die package includes a bottom substrate comprising a bottom contact pad electrically contacting a bottom electrode on a bottom surface of a VCSEL die. The VCSEL die package includes a submount including a submount contact pad electrically contacting a first electrode on another surface of the VCSEL die. The submount contact pad overlaps a portion of the first electrode, wherein the VCSEL die is positioned between the submount and the bottom substrate.

Abstract: Disclosed herein are techniques for forming a thin-film circuit layer on an array of light-emitting diodes (LEDs). LEDs in the array of LEDs can be singulated by various processes, such as etching and ion implantation. Singulating LEDs can be performed before or after forming the thin-film circuit layer on the array of LEDs. The array of LEDs can be bonded to a transparent or non-transparent substrate.

Abstract: A hybrid lens includes a transmissive adaptive liquid lens and an optical element including liquid crystals. The adaptive liquid lens includes a layer of optical fluid on a substrate. A focal length of the adaptive liquid lens is adjustable. The optical element including liquid crystals is optically coupled with the adaptive liquid lens. The optical element including liquid crystals is configured to adjust a refractive index across the optical element including liquid crystals in conjunction with adjusting the focal length of the adaptive liquid lens so that the optical element reduces optical artifacts caused by the adaptive liquid lens.

Abstract: A system can include one or more processors that determine a first position of an object in view of a user of a head mounted display (HMD) and a first gaze direction towards the first position. The object can be detected by one or more sensors. The one or more processors detect that the user is gazing at the object. The one or more processors determine, responsive to detecting that the user is gazing at the object, a second gaze direction based on at least a second position of one or more eyes of the user of the HMD provided via an eye tracking operation of the HMD. The one or more processors calibrate, based at least on a difference between the first gaze direction and the second gaze direction, the eye tracking operation of the HMD.

Abstract: Disclosed herein is an apparatus for providing conductivity. The apparatus may include an epitaxial layered structure having a first-type doped semiconductor layer, a second-type doped semiconductor layer, and an active layer between the first-type doped semiconductor layer and the second-type doped semiconductor layer. The apparatus may also include a conductive layer adjacent to and in ohmic contact with the first-type doped semiconductor layer. The conductive layer may have a micropixellated structure comprising a plurality of micropixel contact areas that are electrically isolated from each other. The plurality of micropixel contact areas may be sized and spaced to allow multiple ones of the plurality of micropixel contact areas to overlap a single contact pad for providing charge flow for a pixel in an array of pixels formed using the epitaxial layered structure.

Abstract: Disclosed herein are techniques for bonding components of LEDs. According to certain embodiments, a device includes a first component having a semiconductor layer stack including an n-side semiconductor layer, an active light emitting layer, and a p-side semiconductor layer. A plurality of mesa shapes are formed within the n-side semiconductor layer, the active light emitting layer, and the p-side semiconductor layer. The semiconductor layer stack comprises a III-V semiconductor material. The device also includes a second component having a passive or an active matrix integrated circuit within a Si layer. A first dielectric material of the first component is bonded to a second dielectric material of the second component, first contacts of the first component are aligned with and bonded to second contacts of the second component, and a run-out between the first contacts and the second contacts is less than 200 nm.

Abstract: Aspects of the present disclosure are directed to creating and administering artificial reality collaborative working environments and providing interaction modes for them. An XR work system can provide and control such artificial reality collaborative working environments to enable, for example, A) links between real-world surfaces and XR surfaces; B) links between multiple real-world areas to XR areas with dedicated functionality; C) maintaining access, while inside the artificial reality working environment, to real-world work tools such as the user's computer screen and keyboard; D) various hand and controller modes for different interaction and collaboration modalities; E) use-based, multi-desk collaborative room configurations; and F) context-based auto population of users and content items into the artificial reality working environment.

Abstract: A wearable device includes a plurality of magnetic field generators positioned at different points to be tracked. The magnetic field generators emit magnetic fields that are sensed by a plurality of magnetic field sensors having known positions relative to each other. The wearable device may have magnetic field generators placed at tracked points corresponding to portions of the fingers and the palm of the device, and magnetic field sensors located at predetermined positions. A position analyzer determines the spatial position of the tracked points on the palm as well as the tracked points on the fingers from the output signals of the magnetic field sensors. From the determined spatial positions of the tracked points, a gesture identification system determines a gesture corresponding to the spatial positions of the points of the wearable device where the magnetic field generators are positioned.

Abstract: An optical assembly includes a first reflector and a second reflector. The first reflector is positioned to receive first light having a first polarization and provide the first light toward a first direction, and receive second light having the first polarization and provide the second light toward a second direction. The second reflector is positioned to receive the second light from the first reflector and reflect the second light back toward the first reflector. The first reflector receives light having a second polarization, having been reflected by the second reflector, and provide the light toward the first direction so that a first image corresponding to the first light and a second image corresponding to the second light are projected on a common image plane where at least a portion of the second image is located between two portions of the first image.

Abstract: In one embodiment, a computing system receives one or more signals indicative of light intensities captured by one or more cameras. These signals are captured in a plurality of frames at a first frame rate. The computing system calculates light intensity metrics for each frame of the plurality of frames based on the one or more signals captured in the respective frames. The computing system detects one or more peaks based on the light intensity metrics associated with one or more frames of the plurality of frames. The one or more frames were captured in a predetermined time period. The computing system determines a likelihood of perceptible flicker based on the detected one or more peaks. The computing system generates a notification indicating the likelihood of perceptible flicker in response to a determination that the likelihood of perceptible flicker exceeds a predetermined threshold.

Abstract: In one embodiment, a method includes reconstructing a three-dimensional shape of a target object, creating a two-dimensional normal map for the three-dimensional shape of the target object, accessing image data and depth data associated with the target object, generating a first normal data associated with the target object using the image data and the depth data, updating the normal map using the first normal data, and re-rendering the three-dimensional shape of the target object based on the updated normal map.

Abstract: A power converter includes an input circuit, an output circuit, and a configuration circuit. The input circuit is configured to receive an input voltage or current. The output circuit is electrically isolated from the input circuit and is configured to generate a combined output voltage or a combined output current in response to the input circuit. The output circuit includes a plurality of output stages that are each configured to generate a respective partial output voltage or current. The configuration circuit is coupled to the plurality of output stages to dynamically reconfigure a connection among the plurality of output stages to combine the respective partial output voltages or currents to adjust the combined output voltage, the combined output current, or a combined output impedance of the power converter.

Abstract: In one embodiment, a method includes generating one or more queues by an application executing on a client system, wherein each queue is associated with one or more declarative attributes, wherein each declarative attribute declares a processing requirement or a processing preference, generating one or more work items to be processed, for each of the one or more work items enqueuing the work item into a selected one of the one or more queues based on the one or more declarative attributes associated with the selected queue, and providing the one or more queues to a scheduler of an operating system of the client system, wherein the scheduler is configured to schedule each of the one or more work items for processing based on one or more policies and the one or more declarative attributes of the selected queue for that work item.

Abstract: Disclosed herein are systems and methods for using microlens arrays for parallel micropatterning of features. A method includes emitting a laser beam providing the laser beam to a lenslet array including a plurality of lenslets, and generating, from the laser beam, a plurality of laser sub-beams using the lenslet array. Each one of the plurality of laser sub-beams is generated by a corresponding one of the plurality of lenslets. Each lenslet of the plurality of lenslets has the same shape.

Abstract: A system for determining a room impulse response of an environment is disclosed. The system includes one or more microphones configured to detect acoustic energy in an area, an input/output interface configured to connect to a network, and one or more processors coupled to a non-transitory computer-readable storage medium. The system is configured to identify a sound detected by the one or more microphones, retrieve a copy of the sound via the network, and determine a room impulse response of the area based on the sound and the copy of the sound.

Abstract: A camera assembly for depth sensing of a local area. The camera assembly includes a projector, a sensor and a controller. The projector emits, into the local area, a structured light (SL) pattern at multiple phases. The sensor images the local area using multiple augmented pixels. Each augmented pixel has multiple gates and at least some of the gates have a respective local storage location. Each capture phase of the augmented pixel is divided into a respective plurality of time bins associated with a respective subset of the gates. Each local storage location of the subset of gates stores image data during a respective time bin, the image data based on portions of the SL pattern emitted at a respective phase and reflected from the local area. The controller determines depth information for the local area based on the image data stored during at least one capture phase.

Abstract: For small, high-resolution, light-emitting diode (LED) displays, such as for a near-eye display in an artificial-reality headset, LEDs are spaced closely together. A backplane can be used to drive an array of LEDs in an LED display. A plurality of interconnects electrically couple the backplane with the array of LEDs. The backplane can have a different coefficient of thermal expansion (CTE) than the array of LEDs. During bonding of the backplane to the array of LEDs, CTE mismatch can cause misalignment of bonding sites. The higher the bonding temperature, the greater the misalignment of bonding sites. Lower temperature bonding, using materials with lower melting or bonding temperatures, can be used to mitigate misalignment during bonding so that interconnects can be more closely spaced, which can allow LEDs to be more closely spaced, to enable a higher-resolution display.

Abstract: Embodiments relate to the design of an electronic device capable having flexible interconnects that connect together a first body and a second body of the electronic device. The flexible interconnects allow the electrical device to better withstand thermal-mechanical stress during fabrication of the electronic device and user usage of the electronic device.

Abstract: An eye tracking unit that includes one or more transmitters that transmit a signal (e.g., a radar signal or an ultrasonic sound) at an eye, one or more receivers that receive a reflection of the signal generated by interaction of the signal with the eye, and an eye orientation estimation module that estimates an orientation of the eye based on the reflected signal received by the one or more ultrasonic receivers and based on a model of the eye. The eye tracking unit may be part of a head-mounted display (HMD) that includes a display element configured to display content to a user wearing the HMD. The model of the eye may be trained by displaying a visual indicator on the electronic element and detecting a reflected signal corresponding to the eye looking at the visual indicator.

Abstract: An artificial-reality device is provided. The artificial-reality device includes a frame having at least one temple section (e.g., a frame arm) and a front section, where the front section is configured to hold at least one lens. The artificial-reality device also includes a hinge pivotally coupling the at least one temple section and the front section. The hinge includes: (A) a front magnetic component that includes a static magnet, and (B) a rear magnetic component, coupled to the at least one temple section, that includes: (i) two or more primary magnets oriented so as to be attracted to the static magnet of the front magnetic component, and (ii) at least one secondary magnet, positioned between the two or more primary magnets, oriented so as to be repelled by the static magnet of the front magnetic component.