Abstract: According to examples, an apparatus for inspecting a device under test (DUT) may include a chassis and an optical system having a camera assembly, a first objective assembly having a first magnification level, and a second objective assembly having a second magnification level. The apparatus may also include a DUT interface including an opening in the chassis through which an end of a DUT inserted into the opening of the DUT interface is selectively visible to one of the first objective assembly and the second objective assembly, in which at least one of the DUT interface and the optical system is movable with respect to the other one of the DUT interface and the optical system.

Abstract: Systems, methods, and devices for providing Köhler illumination for inspection, under a microscope, of end connectors of fiber optic cables. In one aspect, a microscopy system provides Köhler illumination where a numerical aperture of the illumination (NAIL) is greater than a numerical aperture of imaging (NAIM). In another aspect, a reflected light microscopy system includes an array of light sources which illuminate a diffuser, which, in turn, projects the diffused light to reflect off of a beamsplitter and through an objective/condenser upon the end connector. In yet another aspect, the array of light sources may provide different light patterns to illuminate the end connector, and each light pattern may correspond to a different type of radiused end connector.

Abstract: The goal of computer generated holography (CGH) is to synthesize custom illumination patterns by shaping the wavefront of a coherent light beam. Existing algorithms for CGH rely on iterative optimization with a fundamental trade-off between hologram fidelity and computation speed, making them inadequate for high-speed holography applications such as optogenetic photostimulation, optical trapping, or virtual reality displays. We propose a new algorithm, DeepCGH, that relies on a convolutional neural network to eliminate iterative exploration and rapidly synthesize high resolution holograms with fixed computational complexity. DeepCGH is an unsupervised model which can be tailored for specific tasks with customizable training data sets and an explicit cost function. Results show that our method computes 3D holograms at record speeds and with better accuracy than existing techniques.

Abstract: According to examples, an apparatus may include an optical system to capture images of a DUT when the DUT is positioned in a removable DUT adapter plate for inspection in the apparatus. The apparatus may also include a mounting tray having an opening, in which the mounting tray is to support the removable DUT adapter plate, the removable DUT adapter plate includes an identification code positioned on the removable DUT adapter plate, and the optical system is to capture an image of the identification code through the opening in the mounting tray. The apparatus may further include a controller to receive the image of the identification code from the optical system, decode information included in the identification code, and set at least one of a lighting profile, an inspection profile, and pass/fail parameters of the optical system to be used in inspecting the DUT based on the decoded information.

Abstract: A forming die includes a first die component with a male bead and a second die component with a female bead. The male bead and the female bead form a bead with a reverse bead geometry with the male bead having a groove and the female bead having a protrusion complimentary with the groove such that the protrusion is aligned with the groove when the male bead extends into the female bead. Also, the protrusion is adjustable in real-time within the female bead. A stamping machine with the first die component and the second die component has a control unit configured to adjust the protrusion in real-time as a function of mechanical property testing data, width testing data, thickness testing data, lubrication testing data and/or image sensor module data on one or more blanks to be stamped and/or one or more blanks that have been stamped.

Abstract: Systems, methods, and devices for inspection, under a microscope, of end connectors of fiber optic cables are provided. In one aspect, a light ring including a circular array of light sources provides darkfield illumination to an end connector being inspected under a microscope. Each of the light sources may be lit in series and the resulting shadows may be used to identify dirt on the end connector, as well as to determine whether any dirt identified on the end connector can be cleaned off. In another aspect, a light ring combined with a redirection ring (e.g., a reflector and/or refractor ring) may provide darkfield illumination. In yet another aspect, a series of images may be captured and analyzed to automatically identify dirt on the end connector, as well as to determine whether any identified dirt can be cleaned off.

Abstract: A method for compensating springback of a part includes running a finite element analysis (FEA) simulation of forming a panel using a model of forming die such that a panel with springback is simulated, determining at least two zero springback locations on the panel where hanging apertures are simulated, running an FEA simulation of the panel hanging from the hanging apertures, and comparing a geometry of the hanging panel to a geometry of a reference panel such that a difference between the geometry of the hanging panel and the geometry of the reference panel due to the springback is determined and compensated.

Abstract: An apparatus comprises a disc having a plurality of radially projecting slots, each slot configured to receive and hold a musical instrument pick. The disc may also comprise a protrusion configured to be pushed by a finger of a user of the apparatus to retrieve a pick from each of the slots in the disc.

Abstract: A system for determining a physical characteristic or measuring a physical activity of a subject using back-illumination of an eye of a subject includes at least one light source configured for illuminating an eye of a subject using light from within the head of the subject. The system further includes at least one light sensor positionable outside of the head of the subject for sensing light from the at least one light source exiting the subject through the eye of the subject. The system further includes a controller coupled to the at least one light source and to the at least one light sensor for recording an indication of the light while controlling the illuminating.

Abstract: An apparatus comprises a disc having a plurality of radially projecting slots, each slot configured to receive and hold a musical instrument pick. The disc may also comprise a protrusion configured to be pushed by a finger of a user of the apparatus to retrieve a pick from each of the slots in the disc.

Abstract: Methods and systems that provide quantitative assessments of in vivo thermal treatments, such as ablations, during image-guided surgeries using a high-resolution pre-operative MRI image segmented with a shape constrained and deformable mesh representations of brain structures and generating 3-D visualizations of thermally treated volumes during the thermal treatment that can provide near real time visual and quantitative feedback to a clinician.

Abstract: A stamping tool includes a lower pad, upper pad, forming steel, and sub-pad. The lower pad includes a lower forming surface recessed in a first direction between a first lower pad surface and the second lower pad surface. The upper pad is movable along a second direction. In an extended position, the upper pad holds a workpiece against the first lower pad surface. The forming steel includes a first forming surface and is movable along the first direction. In an extended position, the forming steel is received in the recess. The sub-pad is coupled to the forming steel such that the forming steel moves the sub-pad in the first direction as the forming steel moves from the retracted position to an intermediate position in which the sub-pad holds the workpiece against the second lower pad surface while the forming steel continues to move to the extended position.

Abstract: Surgical planning systems that automatically identify one or a plurality of different candidate trajectories to a defined intrabody treatment region. The systems can rank the identified candidate trajectories in an order of hierarchy based on defined parameters such as distance from a critical no-go location and whether a single or multiple different candidate trajectories are needed to provide coverage of the defined intrabody treatment region. The surgical planning systems are also configured to provide a User Interface that defines a workflow for an image-guided surgical procedure and allows a user to select one or more of the identified candidate trajectories steps in the workflow.

Abstract: A method of forming a vehicle panel includes deforming a sheet metal workpiece between stamping tools to form a first and second edges that converge at a corner of the workpiece's main surface. The first edge is defined by a junction of the main surface and a first flange. The second edge is defined the main surface and a second flange. Forming the first and second edges includes deforming the workpiece so that the second flange has a first region bent to a first angle relative to the main surface and an unwinding region bent to an angle that unwinds from the first region as the second flange approaches the corner. The method includes deforming the workpiece between a second set of stamping tools that deform the first flange and the unwinding region of the second flange until the first and second flanges are bent greater than 90°.

Abstract: An apparatus for storing, organizing and displaying picks for a stringed musical instrument includes a disc having a top, bottom, center and a circumference, and a plurality of slots extending radially between the center and circumference. Each slot is configured to receive and securely hold a musical instrument pick through the top of the disc, and a protrusion at the center of the top of the disc is configured to be pushed by a finger of a user of the apparatus to retrieve a pick from each of the plurality of slots.

Abstract: A guitar effects pedalboard comprises a first attachment region and a second attachment region, the first attachment region comprising a plurality of holes having a first diameter, and the second attachment region comprising a plurality of holes having a second diameter, wherein the first diameter is smaller than the second diameter.

Abstract: A method for compensating springback of a part includes running a finite element analysis (FEA) simulation of forming a panel using a model of forming die such that a panel with springback is simulated, determining at least two zero springback locations on the panel where hanging apertures are simulated, running an FEA simulation of the panel hanging from the hanging apertures, and comparing a geometry of the hanging panel to a geometry of a reference panel such that a difference between the geometry of the hanging panel and the geometry of the reference panel due to the springback is determined and compensated.

Abstract: A forming die includes a first die component with a male bead and a second die component with a female bead. The male bead and the female bead form a bead with a reverse bead geometry with the male bead having a groove and the female bead having a protrusion complimentary with the groove such that the protrusion is aligned with the groove when the male bead extends into the female bead. Also, the protrusion is adjustable in real-time within the female bead. A stamping machine with the first die component and the second die component has a control unit configured to adjust the protrusion in real-time as a function of mechanical property testing data, width testing data, thickness testing data, lubrication testing data and/or image sensor module data on one or more blanks to be stamped and/or one or more blanks that have been stamped.