Abstract: A display system includes one or more low-power laser diodes, each producing an emission. The emissions are directed to an optical element that affects the direction or divergence of the emissions. The optical element redirects the emissions toward a steering element such as a MEMS-actuated mirror, or a combination of such mirrors. The steering element directs the emissions toward the incoupler of a waveguide acting as an optical combiner. The emissions propagate through the waveguide and are extracted by an outcoupler in the direction of an observer. By scanning the direction of the beam-steering element along one or several directions, an image may be formed.

Abstract: A laser projection system is provided that includes at least one pickoff element or pickoff interface that redirects a portion of input laser light toward one or more photodetectors for purposes such as laser output power monitoring. An interface of a given pickoff element or a given pickoff interface uses Fresnel reflection to redirect the input laser light. The Fresnel reflection occurs due to a difference in indices of refraction between two materials that meet to form that interface. In some embodiments, a pickoff element is disposed in an optical path between a beam combiner and an optical scanner of the system. The pickoff element can be a plate beamsplitter, a cube beamsplitter, or a prism. In some embodiments, at least one pickoff interface is provided between two or more substrates of the beam combiner, the substrates that form a given pickoff interface having different respective indices of refraction.

Abstract: An example method of producing a microelectromechanical system (MEMS) package, the method comprising: applying first epoxy layers to a first substrate, at least one of the first epoxy layers coupled to a second substrate; applying a first post gel heat treatment to the first epoxy layers; after applying the first post gel heat treatment to the first epoxy layers, applying second epoxy layers to the second substrate and to the first epoxy layers; and applying a second post gel heat treatment to the first epoxy layers and the second epoxy layers.

Abstract: A laser projection system is provided that includes at least one pickoff element or pickoff interface that redirects a portion of input laser light toward one or more photodetectors for purposes such as laser output power monitoring. An interface of a given pickoff element or a given pickoff interface uses Fresnel reflection to redirect the input laser light. The Fresnel reflection occurs due to a difference in indices of refraction between two materials that meet to form that interface. In some embodiments, a pickoff element is disposed in an optical path between a beam combiner and an optical scanner of the system. The pickoff element can be a plate beamsplitter, a cube beamsplitter, or a prism. In some embodiments, at least one pickoff interface is provided between two or more substrates of the beam combiner, the substrates that form a given pickoff interface having different respective indices of refraction.

Abstract: A back rest assembly includes a base assembly mountable adjacent a resting surface and a back rest having a supported side pivotably supported by the base assembly and an unsupported side spaced laterally apart from the supported side along a lateral axis. When the base assembly is mounted, the back rest is positionable over the resting surface and selectively pivotable about the lateral axis for adjusting an angular position of the back rest relative to the resting surface.

Abstract: A method for transferring digital content items in a peer-to-peer network in which a plurality of nodes participate includes receiving requests for receipt of one or more digital content items from a plurality of requesting nodes belonging to the peer-to-peer network. A capacity of the requesting nodes to upload data is assessed. Network resources available to the peer-to-peer network for delivering the digital content items or chunks thereof to the receiving nodes are allocated based at least in part on the capacity of the requesting nodes to upload data. The digital content items or chunks thereof are sent to the requesting nodes over the peer-to-peer network in accordance with the network resources that are allocated to each of the requesting nodes.

Abstract: Acquiring an interactive digital content item including a plurality of content portions includes receiving a first set of the content portions that is less than an entirety of the content portions. A partial functionality version of the interactive digital content item is presented using the first set of content portions. A second set of the content portions is received while the partial functionality version of the interactive digital content item is presented. Functionality is added to the partial functionality version of the interactive digital content item using the second set of content portions without interrupting presentation of the partial functionality version of the interactive digital content item.

Abstract: Methods, apparatuses and systems for use of a magnetometer calibration (MAG-CAL) application to calibrate a magnetometer while an aircraft is in-flight including: generating a MAG-CAL calculated pattern based on a set of aircraft parameters for the in-air magnetometer calibration, the set of aircraft parameters at least comprise: speed, bank angle, altitude and position of the aircraft; generating a set of waypoints that define a calibration flight path corresponding to the MAG-CAL calculated pattern; Configuring the calibration flight path of the MAG-CAL calculated pattern to be part of the original flight path of the in-flight aircraft to enable the aircraft while flying the original flight to proceed in part on the calibration flight path corresponding to the MAG-CAL calculated pattern; and enabling the aircraft to deviate while in-flight from the original flight path to the calibration flight path to enable a sufficient level of calibration for accurate magnetometer operation.

Abstract: Systems, devices, and methods for making and using curved holographic optical elements (“HOEs”) are described. A hologram to apply a first optical power to playback light may be embedded in an internal volume of a curved lens, where the curved lens has a first curvature to apply a second optical power to the playback light and a second curvature opposite the first curvature to define the internal volume of the curved lens. The first optical power may be equal in magnitude and opposite in sign to the second optical power. The curved HOEs described herein are particularly well-suited for use when integrated with a curved eyeglass lens to form the transparent combiner of a virtual retina display.

Abstract: Lures containing only the adult-produced pheromones from T. granarium are provided. These lures, and methods for using them, can be employed to trap T. granarium larvae.

Abstract: A technique employs a system and methodology for improving sand control in pumps. The technique may be used in centrifugal pumps by providing uniquely constructed rib feature to facilitate sand control and thus reduction of erosion due to sand in the pumped fluid. The improved sand control is useful in centrifugal pumps employed in a variety of oilfield applications, such as in electric submersible pumping systems positioned downhole in a wellbore to pump oil or other fluids. The rib feature may be used in combination with a shield and arranged along diffuser bowl walls or other diffuser walls within sequential pump stages.

Abstract: Obligatorily-acquired digital content items are stored under service control in one or more local storage machines of a computer based on service commands provided by a centralized management service; and voluntarily-acquired digital content items are stored under user control in the one or more local storage machines of the computer based on user commands. The obligatorily-acquired digital content items are protected from user-commanded deletion. The obligatorily-acquired digital content items are deleted from the one or more local storage machines based on service commands provided by the centralized management service. However, the voluntarily-acquired digital content items are deleted from the one or more local storage machines based on user commands.

Abstract: Coated seed products with a roasted flavor and a crunchy, crispy starch coating are provided. In another aspect, the coated seed products are provided without a high level of saturated fat.

Abstract: Methods, apparatuses and systems for use of a magnetometer calibration (MAG-CAL) application to calibrate a magnetometer while an aircraft is in-flight including: generating a MAG-CAL calculated pattern based on a set of aircraft parameters for the in-air magnetometer calibration, the set of aircraft parameters at least comprise: speed, bank angle, altitude and position of the aircraft; generating a set of waypoints that define a calibration flight path corresponding to the MAG-CAL calculated pattern; Configuring the calibration flight path of the MAG-CAL calculated pattern to be part of the original flight path of the in-flight aircraft to enable the aircraft while flying the original flight to proceed in part on the calibration flight path corresponding to the MAG-CAL calculated pattern; and enabling the aircraft to deviate while in-flight from the original flight path to the calibration flight path to enable a sufficient level of calibration for accurate magnetometer operation.

Abstract: Implementations disclosed herein can be used to improve the distribution of digital content in a peer-to-peer network. In certain embodiments, computing devices are mapped into different groups based on location information, and inter-group information, including historical inter-group information associated with at least one of inter-group data transfer rate information and inter-group availability information, is accessed and used to identify a first group of computing devices to send download requests for digital content, wherein the first group includes a first number of idle and available computer devices greater than a number of idle and available computer devices of another group of the computing devices. The download request for the digital content is effected or recommended to be sent from a second computing device mapped to a second group of the computing devices to a first computing device mapped to the first group.

Abstract: Acquiring an interactive digital content item including a plurality of content portions includes receiving a first set of the content portions that is less than an entirety of the content portions. A partial functionality version of the interactive digital content item is presented using the first set of content portions. A second set of the content portions is received while the partial functionality version of the interactive digital content item is presented. Functionality is added to the partial functionality version of the interactive digital content item using the second set of content portions without interrupting presentation of the partial functionality version of the interactive digital content item.

Abstract: Systems, devices, and methods for laser projectors with variable luminance that are well-suited for use in a wearable heads-up display (“WHUD”) are described. Such laser projectors include a laser light source(s) and a scan mirror(s) to generate an image in the field of view of a user, and a liquid crystal element between the light source(s) and the scan mirror(s) to adjust the luminance of the image. The liquid crystal element is on an optical path between the laser light source(s) and the scan mirror and is communicatively coupled to a controller that modulates an opacity of the liquid crystal element. The opacity of the liquid crystal element determines the luminance of the image and may be altered in response to different factors, such as ambient light. Particular applications of the laser projector systems, devices, and methods in a wearable heads-up display are described.

Abstract: Systems, devices, and methods for laser projectors with variable luminance that are well-suited for use in a wearable heads-up display (“WHUD”) are described. Such laser projectors include a laser light source(s) and a scan mirror(s) to generate an image in the field of view of a user, and a liquid crystal element between the light source(s) and the scan mirror(s) to adjust the luminance of the image. The liquid crystal element is on an optical path between the laser light source(s) and the scan mirror and is communicatively coupled to a controller that modulates an opacity of the liquid crystal element. The opacity of the liquid crystal element determines the luminance of the image and may be altered in response to different factors, such as ambient light. Particular applications of the laser projector systems, devices, and methods in a wearable heads-up display are described.

Abstract: Systems, devices, and methods for laser projectors with variable luminance that are well-suited for use in a wearable heads-up display (“WHUD”) are described. Such laser projectors include a laser light source(s) and a scan mirror(s) to generate an image in the field of view of a user, and a liquid crystal element between the light source(s) and the scan mirror(s) to adjust the luminance of the image. The liquid crystal element is on an optical path between the laser light source(s) and the scan mirror and is communicatively coupled to a controller that modulates an opacity of the liquid crystal element. The opacity of the liquid crystal element determines the luminance of the image and may be altered in response to different factors, such as ambient light. Particular applications of the laser projector systems, devices, and methods in a wearable heads-up display are described.

Abstract: Acquiring an interactive digital content item including a plurality of content portions includes receiving a first set of the content portions that is less than an entirety of the content portions. A partial functionality version of the interactive digital content item is presented using the first set of content portions. A second set of the content portions is received while the partial functionality version of the interactive digital content item is presented. Functionality is added to the partial functionality version of the interactive digital content item using the second set of content portions without interrupting presentation of the partial functionality version of the interactive digital content item.