Abstract: A robotic orchard spraying system having autonomous delivery vehicles (ADV), each autonomously delivering an amount of a premixed solution over a non-overlapping path verified by a forward-looking sensor, video, or both. Also, a mobile control center, configured to wirelessly inform the autonomous delivery vehicle of the path within the areas and to confirm that the autonomous delivery vehicle is following the path within the area. Additionally, a mapper vehicle generates the path within the area, the mapper vehicle being configured to communicate information about the path and the area to the command center. The mapper vehicle senses the path with a forward-looking LiDAR sensor, and senses the area with a GPS sensor. Moreover, a nurse truck has a reservoir of premixed solution for replenishing a tank of the ADV. ADVs and the control center communicate over a radio network, which may be a mesh network, a cellular network, or both.

Abstract: An apparatus for rotation rate damping of a suspended platform, the apparatus including a plurality of vertically-extended partially-filled fluid reservoirs, each of the reservoirs being open at a top and offset from a center of gravity of the suspended platform, the reservoirs being connected by tubing permitting fluid to flow between reservoirs in response to gravitational accelerations; wherein motion of the fluid in the tubing creates damping of the rotational motion of the platform.

Abstract: Techniques for data manipulation using processor cluster address generation are disclosed. One or more processor clusters capable of executing software-initiated work requests are accessed. A plurality of dimensions from a tensor is flattened into a single dimension. A work request address field is parsed, where the address field contains unique address space descriptors for each of the plurality of dimensions, along with a common address space descriptor. A direct memory access (DMA) engine coupled to the one or more processor clusters is configured. Addresses are generated based on the unique address space descriptors and the common address space descriptor. The plurality of dimensions can be summed to generate a single address. Memory is accessed using two or more of the addresses that were generated. The addresses are used to enable DMA access.

Abstract: A occupant detection and monitoring system has a sensor unit having a radio wave transmitter, a radio wave receiver, and a wireless transmitter configured to detect and receive vital signs of an occupant; a user interface having a microcontroller, a wireless receiver configured to receive the wireless signals transmitted from the sensor unit, a means for user input, and a network card; and a means for alerting occupants and third-parties to a triggering event; wherein the microcontroller, based upon logic, activates the alerting means at the triggering event. The sensor unit may be a camera that detects the presence of an individual and register their unique heart rhythm for identification purposes. This camera can be installed at the entry points of a home, behind the counter of a business near a cash register or at a bank or any other place that desires to use surveillance as a form of security. The sensor unit may be a light bulb that comprises the components of the sensor unit.

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: An economical ground heat exchanger system uses water-filled membrane liners in cylindrical augured holes. A submersible pump in a drain reservoir is shared by multiple boreholes. Thermal connection with a building or industrial process occurs through a heat exchanger thermally coupled to the reservoir. The pump sends water tempered by the heat exchanger to the water-filled holes, where it exchanges heat with the ground before overflowing through gravity drain piping back to the reservoir for continued recirculation. Heat transfer with the ground occurs through thermal contact between the water, the membrane liners, and earth supporting the liners. Optional raised borehole support rims maintain an “above grade” water level and allow removed soil to be re-used as a berm or planter over manifold pipes that connect the system components, thus eliminating the cost of trenching for the manifold pipes.

Abstract: Embodiments of this disclosure systems and methods for displays. In embodiments, a display system includes a light source configured to emit a first light, a lens configured to receive the first light, and an image generator configured receive the first light and emit a second light. The display system further includes a plurality of waveguides, where at least two of the plurality of waveguides include an in-coupling grating configured to selectively couple the second light. In some embodiments, the light source can comprise a single pupil light source having a reflector and a micro-LED array disposed in the reflector.

Abstract: This disclosure describes a wearable display system configured to project light to the eye(s) of a user to display virtual (e.g., augmented reality) image content in a vision field of the user. The system can include light source(s) that output light, spatial light modulator(s) that modulate the light to provide the virtual image content, and an eyepiece configured to convey the modulated light toward the eye(s) of the user. The eyepiece can include waveguide(s) and a plurality of in-coupling optical elements arranged on or in the waveguide(s) to in-couple the modulated light received from the spatial light modulator(s) into the waveguide(s) to be guided toward the user's eye(s). The spatial light modulator(s) may be movable, and/or may include movable components, to direct different portions of the modulated light toward different ones of the in-coupling optical elements at different times.

Abstract: Systems and methods are described for enabling users to model security resources and user access keys as resources in a template language. The template can be used to create and update a stack of resources that will provide a network-accessible service. The security resources and access keys can be referred to in the template during both stack creation process and the stack update process. The security resources can include users, groups and policies. Additionally, users can refer to access keys in the template as dynamic parameters without any need to refer to the access keys in plaintext. The system securely stores access keys within the system and allows for templates to refer to them once defined. These key references can then be passed within a template to resources that need them as well as passing them on securely to resources like server instances through the use of the user-data field.

Abstract: An optical device may include a wedge-shaped light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface that is inclined with respect to the horizontal axis by a wedge angle. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface.

Abstract: A method of reducing optical artifacts includes injecting a light beam generated by an illumination source into a polarizing beam splitter (PBS), reflecting a spatially defined portion of the light beam from a display panel, reflecting, at an interface in the PBS, the spatially defined portion of the light beam towards a projector lens, passing at least a portion of the spatially defined portion of the light beam through a circular polarizer disposed between the PBS and the projector lens, reflecting, by one or more elements of the projector lens, a return portion of the spatially defined portion of the light beam, and attenuating, at the circular polarizer, the return portion of the spatially defined portion of the light beam.

Abstract: An optical device may include a wedge-shaped light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface that is inclined with respect to the horizontal axis by a wedge angle. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface.

Abstract: A viewing optics assembly comprising a spatial light modulator is configured to rotate the spatial light modulator.

Abstract: An artifact mitigation system includes a projector assembly and a set of imaging optics optically coupled to the projector assembly. The artifact mitigation system also includes an eyepiece optically coupled to the set of imaging optics. The eyepiece includes a diffractive incoupling interface. The artifact mitigation system further includes an artifact prevention element disposed between the set of imaging optics and the eyepiece. The artifact prevention element includes a linear polarizer, a first quarter waveplate disposed adjacent the linear polarizer, and a color select component disposed adjacent the first quarter waveplate.

Abstract: A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.

Abstract: An optical device may include a light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The light coupled into the light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.

Abstract: A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.

Abstract: A replacement fluid suitable to replace a PCR Mastermix, wherein the replacement fluid is different from the PCR Mastermix. The replacement fluid has pipetting characteristics substantially equivalent to the PCR Mastermix, wherein for a desired pipetted volume of the target fluid delivered by a pipette, a pipetted volume of the replacement fluid delivered by the pipette is substantially equivalent to the desired pipetted volume of the PCR Mastermix. The replacement fluid is a primary equivalent fluid having substantially similar pipetting characteristics. One or more additives may be added to the primary equivalent fluid. The one or more additives may include pipettability modifying additives and non pipettability modifying additives.

Abstract: A replacement fluid suitable to replace a target fluid, wherein the replacement fluid is different from the target fluid. The replacement fluid has pipetting characteristics substantially equivalent to the target fluid, wherein for a desired pipetted volume of the target fluid delivered by a pipette, a pipetted volume of the replacement fluid delivered by the pipette is substantially equivalent to the desired pipetted volume of the target fluid. The replacement fluid is a primary equivalent fluid having substantially similar pipetting characteristics. One or more additives may be added to the primary equivalent fluid. The one or more additives may include pipettability modifying additives and non pipettability modifying additives.

Abstract: An economical ground heat exchanger system uses water-filled membrane liners in cylindrical augured holes. A submersible pump in a drain reservoir is shared by multiple boreholes. Thermal connection with a building or industrial process occurs through a heat exchanger thermally coupled to the reservoir. The pump sends water tempered by the heat exchanger to the water-filled holes, where it exchanges heat with the ground before overflowing through gravity drain piping back to the reservoir for continued recirculation. Heat transfer with the ground occurs through thermal contact between the water, the membrane liners, and earth supporting the liners. Optional raised borehole support rims maintain an “above grade” water level and allow removed soil to be re-used as a berm or planter over manifold pipes that connect the system components, thus eliminating the cost of trenching for the manifold pipes.