Abstract: Systems and methods for a telescoping suction gripper assembly are provided. In one embodiment, a robotic system comprises: a robot comprising a robotic actuator and at least one robotic arm mechanically coupled to the robotic actuator; a telescoping suction gripper assembly comprising a telescoping member and a suction gripper mechanism, wherein a first end of the telescoping member is coupled to a vacuum supply conduit via a first flexible conduit member and a second end of the telescoping member is coupled to the suction gripper mechanism by a second flexible conduit member, and wherein the suction gripper mechanism is pivotally coupled to the at least one robotic; wherein the telescoping member is configured to adjust in length in response to the at least one robotic arm relocating the suction gripper mechanism from a first position to a second position.

Abstract: A parallel plate waveguide assembly for conveying an image bearing light from an in-coupling optic to an out-coupling optic is disclosed wherein the waveguide assembly includes at least a waveguide blank having a first surface and a second surface located a distance from the first surface to create a thickness of the blank. The waveguide assembly further includes a first coating applied to the first surface forming a third surface and a second coating applied to the second surface forming a fourth surface. The third and fourth surfaces are less than a quarter of a wavelength of an image bearing light beam in flatness.

Abstract: A wearable display apparatus has a support that mounts the display apparatus against the head of a viewer; a ball joint that is fitted within the support and coupled to a clamp that extends from the support; a slide that is translatable within the clamp in a first direction and that holds a display module for forming the display image; and a display coupled to the display module and rotatable in a first arc about a vertical axis that extends in a second direction that is orthogonal to the first direction and further rotatable in a second arc about a horizontal axis that is substantially orthogonal to the vertical axis.

Abstract: A garment is provided for selective attachment of support straps. The straps may be integrated into the garment or may separate therefrom. The straps may be used for support of the wearer. The straps may be used to customize and/or fit the garment to the wearer.

Abstract: A waveguide apparatus for conveying a virtual image has first and second parallel planar surfaces. A first in-coupling diffractive optic on the first planar surface directs a first subset of image-bearing light beams into the waveguide and a second in-coupling diffractive optic on second planar surface directs a second subset of the image-bearing light beams into the waveguide. The first and second in-coupling diffractive optics are offset with respect to each other along the first and second parallel planar surfaces to independently direct the respective first and second subsets of the image-bearing light beams into the waveguide.

Abstract: A garment for wear by a person and a garment system of garments includes bands and elastic portions to apply tension and support to muscle groups when the garment is worn by a wearer. The garments include a vest with crossed back bands within the garment that are selectively fastenable to the exterior of the vest to exert tension from the shoulders to the hips. Also included is a cape with shoulder straps and hip straps to apply further tension when attached to the vest or another garment. A shirt includes a central back panel and one or more shoulder straps, the central panel extending to side straps at the hip. Shorts with a spiral strap apply tension from the body core to the leg of the wearer. Shirts and tops for women including for maternity wear include support specific to a woman's body. Some of the shirts, tops, shorts and vests have wearer adjustable straps to vary the tension applied by the straps.

Abstract: A hexahedral polarization beamsplitter is constructed with four substantially triangular prisms with a polarizing beamsplitter located within each of the interfaces between the assembled prisms. An input side of the assembly receives an unpolarized beam and two opposing output sides of the assembly transmit orthogonally polarized portions of the unpolarized beam in opposite directions. The polarizing beamsplitters are arranged at the interfaces so that each of the orthogonally polarized portions of the unpolarized beam is both reflected by one of the polarizing beamsplitters and transmitted by another of the polarizing beamsplitters.

Abstract: A transport refrigeration system (TRS) includes a first heat transfer circuit including a first compressor, a condenser, a first expansion device, and a cascade heat exchanger. The first compressor, the condenser, the first expansion device, and the cascade heat exchanger are in fluid communication such that a first heat transfer fluid can flow therethrough. The TRS includes a second heat transfer circuit including a second compressor, the cascade heat exchanger, a second expansion device, and an evaporator. The second compressor, the cascade heat exchanger, the second expansion device, and the evaporator are in fluid communication such that a second heat transfer fluid can flow therethrough. The first heat transfer circuit and the second heat transfer circuit are arranged in thermal communication at the cascade heat exchanger such that the first heat transfer fluid and the second heat transfer fluid are in a heat exchange relationship at the cascade heat exchanger.

Abstract: Refrigerant compositions for an HVACR system that includes R1123, R32 and at least one more refrigerant. The refrigerant composition has a reduced GWP of about or less than 1500. Some of the refrigerant composition may be suitable for replacing R410A, R32, and/or R22. Methods for making the refrigerant composition including mixing an amount of R1123, and amount of R32, and an amount of at least one more refrigerant. Methods of retrofitting an existing refrigerant composition include adding an amount of at least one refrigerant to an existing refrigerant composition to produce a retrofitted refrigerant composition. The retrofitted refrigerant composition includes at least R1123 and R32.

Abstract: An example joiner system for joining a first section and a second section of a fixture includes a joiner bracket that has formed therein a depressed ramp region. A joiner fastener, such as a screw, may engage against the angled walls of the joiner bracket ramp, to translate the vertical movement of the screw into a horizontal, longitudinal movement of the joiner bracket. The joiner bracket may be rigidly coupled to one section of a light fixture assembly, such that engaging the screw ramp with a fastener that extends through another section of the light fixture causes the two fixture sections to move toward each other. As vertical movement of a fastener produces horizontal movement of the joiner bracket, the joiner fastener or set screw may extend outside of the light fixture assembly, so as to be readily accessible by a technician.

Abstract: A near-eye display for conveying virtual images within a real-world view includes a projector arranged to compensate for undesirable color gradients in the virtual images. The projector includes an illuminator with an extended light source having a plurality of cells each containing different color light sources and a partial homogenizer for partially overlapping light from the plurality of cells at an illumination plane of a spatial light modulator. A controller adjusts the color outputs of the cells to provide a color distribution over the illumination plane to compensate for the color gradients within the virtual images.

Abstract: An imaging light guide has waveguide for conveying image-bearing light beams from an image source to an eyebox within which a virtual image can be viewed. First and second in-coupling diffractive optics direct first and second sets of the image-bearing light beams into the waveguide along different first and second paths. First and second turning diffractive optics disposed along the respective paths expand the image-bearing light beams of the first and second sets in a first dimension and direct the expanded image-bearing light beams of the first and second sets to first and second out-coupling diffractive optics. The first and second out-coupling diffractive optics further expand the image-bearing light beams of the two sets in a second dimension and direct the further expanded image-bearing light beams of the two sets from the waveguide toward the eyebox.

Abstract: A test assembly for testing a device under test includes a probe card assembly and a cap secured to the probe card assembly. The probe card assembly includes a probe tile having a plurality of openings. The probe tile includes a plurality of probe wires including a probe needle portion and a probe tip portion. A seal is disposed on a surface of the probe tile and forms an outer perimeter of a pressurized area. The probe tile includes an insulation layer formed within the pressurized area that is configured to separate the probe needle portion from the device under test. The insulation layer includes an aperture through which the probe tip portion extends to contact the device under test. The cap includes a fluid inlet and a fluid return outlet that are in fluid communication with the plurality of openings of the probe tile.

Abstract: Exemplary embodiments contained herein include garments having biomechanical components including panels for influencing the wearer. Exemplary embodiments contained herein include garments having features for improving comfort of the wearer during use.

Abstract: A method of fabricating a substrate includes providing a substrate having a flat surface and a beam writing system operable to write in a first direction and a second direction, wherein the second direction is perpendicular to the first direction, The method further includes providing a diffraction grating layout pattern having a first diffraction grating, a second diffraction grating, and a third diffraction grating. The method also includes locating the substrate in the beam writing system, whereby the beam writing system is operable to write into the flat surface, and aligning one of the first, second, and third diffraction gratings parallel with the beam writing system first direction. Additionally, the method includes writing the diffraction grating layout pattern into the substrate flat surface via the beam writing machine.

Abstract: A frame supports a display apparatus against the head of a viewer. A projector fitted within the frame generates a beam of image-bearing light. A light guide coupled to a forward section of the frame has a waveguide, an in-coupling diffractive optic formed on the waveguide for directing image-bearing light beams into the waveguide, a turning optic formed on the waveguide for expanding the respective image-bearing light beams from the in-coupling diffractive optic in a first dimension, and an out-coupling diffractive optic formed on the waveguide for expanding the respective image-bearing light beams in a second dimension orthogonal to the first dimension and forming a virtual image within a viewer eyebox. A mount supports the light guide in front of the viewer and provides a hinge for angular adjustment of the waveguide with respect to the projector.

Abstract: An image light guide for conveying a virtual image has a waveguide that conveys image-bearing light, formed as a flat plate having an in-coupling diffractive optic with a first grating vector diffracting an image-bearing light beam into the waveguide and directing diffracted light. An out-coupling diffractive optic is formed as a plurality of overlapping diffraction gratings including a first grating pattern having first grating vector k1 and a second grating pattern having a second grating vector k2 for expanding and ejecting the expanded image bearing beams from the waveguide into an expanded eyebox within which the virtual image can be seen.

Abstract: Heat is recovered from a heat source to heat water to high temperatures. Apparatuses, systems and methods are described to heat water to a high temperature by using heat, such as may be considered in some instances as waste heat, recovered from a heat source. The methods, systems, and apparatuses described utilize low pressure refrigerant(s) as a fluid to provide a refrigeration cycle that utilizes a source of heat to heat water to a high temperature. The refrigeration cycle can be with or without a cascade cycle. The refrigerant cycle in some examples uses an oil free compressor.

Abstract: A head-mounted display for an augmented reality application includes an image light guide arranged within the aperture of an eye rim section of the head-mounted display for directing angularly related image-bearing light beams encoding a virtual object toward an eyebox for the viewing the virtual object at a hyperfocal to near infinite focusing distance to the eyebox. A negative-power optic between one side of the image light guide and the eyebox diverges the image-bearing beams in advance of the eyebox for viewing the virtual object at a closer distance to the eyebox that is less than the hyperfocal distance. A positive-power optic on an opposite side of the image light guide compensates for the negative-power of the negative-power optic for viewing a real-world object at its actual distance to the eyebox. A corrective optic located between the image light guide and the eyebox reduces the viewer's aberrations for viewing of both the real-world object and the virtual object.

Abstract: Aspects of this disclosure relate to a welding system that is configured to execute opposed, step, and parallel gap resistance spot welds (RSW) and associated methods. The system may be configured to switch bases to switch between an opposed weld configuration, a step weld configuration, and a parallel gap configuration. The system may include an accelerometer that is secured to the weld head adjacent one of the electrodes. The system may use the accelerometer to determine whether or not an RSW was defective. Acceleration data may indicate a defective weld when it includes acceleration data that is outside of a threshold range of acceptable acceleration data.