Abstract: A securement band for a head-mountable device can include a variable length strap, a first load spreader connected to the variable length strap, and a second load spreader connected to and separated from the first load spreader by the variable length strap. The first and second load spreaders can be fixed in length. The variable length strap can include elastic material and the first and second load spreaders can be rigid.

Abstract: A three-dimensional microlattice layer comprising a plurality of interconnected filaments extending along at least three different directions from a plurality of nodes. The microlattice layer may further comprise at least one material layer extending laterally between and interconnecting at least two or more nodes. The at least one material layer may be configured to transversely and rotationally constrain the nodes to increase the overall compressive strength and stiffness of the microlattice structure. The at least one material layer may comprise a single, continuous layer and/or a plurality of material layer segments. The microlattice layer may comprise a single, continuous layer or a plurality of microlattice layer segments. The microlattice layer may be stacked, the stacked microlattice layers may further comprise one or more material layers and/or one or more impact mitigation layers.

Abstract: A facial interface for a head-mounted display device can include a first frame, a second frame, and a linear actuator movably coupling the first frame to the second frame. The linear actuator can be coupled to the first frame at a first end and defines a spherical portion at a second end opposite the first end. The facial interface can further include a plate movably secured to the second frame, and the plate can define a slot configured to receive the spherical portion of the linear actuator.

Abstract: A three-dimensional microlattice layer comprising a plurality of interconnected filaments extending along at least three different directions from a plurality of nodes. The microlattice layer may further comprise at least one material layer extending laterally between and interconnecting at least two or more nodes. The at least one material layer may be configured to transversely and rotationally constrain the nodes to increase the overall compressive strength and stiffness of the microlattice structure. The at least one material layer may comprise a single, continuous layer and/or a plurality of material layer segments. The microlattice layer may comprise a single, continuous layer or a plurality of microlattice layer segments. The microlattice layer may be stacked, the stacked microlattice layers may further comprise one or more material layers and/or one or more impact mitigation layers.

Abstract: A head-mountable device can facilitate comfort, guidance, and alertness of the user by providing visual and other outputs with one or more user interface devices. Such outputs can encourage awareness, alertness, and knowledge of the user's movement, features of the environment, and/or the conditions of the user. The actions can be performed by an output of the head-mountable device, such as a display, a speaker, a haptic feedback device, and/or another output device that interacts with the user.

Abstract: A head-mountable device can include assemblies that provide vision correction with lenses. By providing head-mountable devices with modular features, certain lens assemblies can provide the desired vision correction for any given user and facilitate exchange with a different lens assembly for a different user. Within given assemblies, a lens or lenses can be moved within the corresponding housing such that they move with respect to other structures, such as other lenses and/or a display. Such movements can be managed by an elastic support that initially provides stability to the lens but can deform to allow the lens to move through the elastic support when sufficient force in a particular direction is applied.

Abstract: A head-mountable device can facilitate comfort, guidance, and alertness of the user by inducing the user to blink, move, or adjust the user's eyes. Such actions can be encouraged in response to detections of the user's movement, physical features of the environment, and/or the conditions of the eye, including moisture of the eye. The actions can be performed by an output of the head-mountable device, such as a display, a speaker, a haptic feedback device, a blower, and/or another output device that interacts with the user.

Abstract: A securement band for a head-mountable device can include a variable length strap, a first load spreader connected to the variable length strap, and a second load spreader connected to and separated from the first load spreader by the variable length strap. The first and second load spreaders can be fixed in length. The variable length strap can include elastic material and the first and second load spreaders can be rigid.

Abstract: Head-mountable electronic devices including adjustable displays and methods of using the same are disclosed. In an example, a head-mountable electronic device includes a display unit including a display, a first frame coupled to the display, a second frame coupled to the first frame by a first actuator, and a securement strap coupled to the second frame. The first actuator can be configured to adjust a distance between the first frame and the second frame, and the first actuator can be non-backdrivable.

Abstract: A wearable electronic device can include interface features to provide guidance for optimal placement of the wearable electronic device. The wearable electronic device and/or another electronic device can be operated to guide a user to position the wearable electronic device in a manner that will achieve proper alignment of components with respect to the user and maximize user comfort. For example, the wearable electronic device and/or another device can include sensors for detecting features of the user's face, forces distributed on the face when worn, and/or alignment with the face (e.g., eyes). The guidance can include instructions or other interface features to encourage adjustment of the wearable electronic device. While the head wearable electronic device can provide such guidance to the user wearing it, the feedback can also be provided to another person and/or via another device.

Abstract: A head-mountable device can include a display frame, an optical component disposed within the display frame, a facial interface, and a rigid bumper connected to the display frame. The rigid bumper can be positioned between the display frame and the facial interface and can further define a gap between the optical component and the facial interface. The facial interface can also include a cushion layer that can be rated for applied loads in a first force range. Furthermore, a stop can be connected to the head-mountable display, wherein the stop can be rated for applied loads within a second force range that is higher than the first force range. The facial interface can further include a front surface facing toward the head-mountable display and a rear surface that can contact a face.

Abstract: Protective clothing and/or equipment may comprise a modular helmet assembly which comprises a plurality of impact mitigation modules positioned between an outer layer and an interior layer of the helmet, optionally with a plurality of perforations or openings in an outer shell of the helmet. The plurality of impact mitigation assemblies may comprise an impact absorbing array of impact mitigation structures having at least one filament and a lateral support wall or connecting element. When force is applied to the exterior surface, the structures of the impact absorbing materials deform in a desired and controlled manner, reducing the force received by the interior layer.

Abstract: A microlattice structure may be used for a variety of different applications with a protective helmet assembly. In one embodiment, a football helmet includes an outer shell and a plurality of pads coupled to a curved interior surface of the outer shell. One or more pads of the plurality of pads includes an impact mitigation layer having an open structure capable of buckling nonlinearly when impacted. The impact mitigation layer has a first surface contoured to the curved interior surface of the outer shell and a second surface custom manufactured based on a head of a wearer.

Abstract: A microlattice structure may be used for a variety of different applications with a protective helmet assembly. The three-dimensional microlattice layer comprising a plurality of interconnected filaments extending along at least three different directions from a plurality of nodes. The microlattice layer may further comprise at least one material layer extending laterally between and interconnecting at least two or more nodes. The at least one material layer may be configured to transversely and rotationally constrain the nodes to increase the overall compressive strength and stiffness of the microlattice structure. The at least one material layer may comprise a single, continuous layer and/or a plurality of material layer segments. The microlattice layer may comprise a single, continuous layer or a plurality of microlattice layer segments. The microlattice layer may be stacked, the stacked microlattice layers may further comprise one or more material layers and/or one or more impact mitigation layers.

Abstract: The disclosure provides example apparatus and methods for automatically adjusting a socket size of a prosthesis. The apparatus includes (a) the prosthesis having a socket configured to receive a limb, (b) a first opening in a socket wall, (c) a first panel aligned with the first opening, (d) a first actuator coupled to the first panel and to the prosthesis, the first actuator is configured to advance and retract the first panel, (e) a first sensor coupled to the socket wall and configured to obtain limb-to-socket gap data, and (f) a processor coupled to the first actuator and the first sensor, wherein the processor is configured (i) to receive the limb-to-socket gap data, (ii) to determine a socket-size adjustment based on the limb-to-socket gap data and a predetermined socket-fit value, (iii) to generate and (iv) to send a command with the socket-size adjustment to the first actuator.

Abstract: Provided herein are compositions containing a polymer substrate and a fragrance, methods for preparing such compositions, and methods for using such compositions for providing scents to an environment, such as a room or a vehicle. For example, the polymer substrate may comprise an alkyl acrylate, including but not limited to methyl acrylate. For example, the fragrance may comprise a polar or nonpolar molecule, or a collection of polar and/or nonpolar molecules. The resulting composition provides a temperature-stable fragrance composition that can be used within vehicles, has low to no residual odor, and can be loaded with at least 90% by weight of fragrance (relative to the weight of the polymer substrate).

Abstract: Protective clothing and/or equipment may comprise a modular helmet assembly which comprises a plurality of impact mitigation modules positioned between an outer layer and an interior layer of the helmet, optionally with a plurality of perforations or openings in an outer shell of the helmet. The plurality of impact mitigation assemblies may comprise an impact absorbing array of impact mitigation structures having at least one filament and a lateral support wall or connecting element. When force is applied to the exterior surface, the structures of the impact absorbing materials deform in a desired and controlled manner, reducing the force received by the interior layer.

Abstract: A head-mounted display device includes a device housing and a fan coupled to the device housing and configured to direct airflow within the device housing. The fan includes a fan housing, a motor hub, and a fan blade coupled to the motor hub. The fan blade has a first cross-section adjacent to the motor hub, a second cross-section outward of and adjacent to the first cross-section, and the first cross-section is smaller than the second cross-section such that an applied force to the device housing causes the fan blade to transition from an operable configuration to an inoperable configuration by deformation of the fan blade at the first cross-section.

Abstract: A device includes a device housing, a facial interface, a support structure, content display components, and an impact mitigation structure that is configured to mitigate an impact with an external structure.

Abstract: Protective clothing and/or equipment may comprise a modular helmet assembly which comprises a plurality of impact mitigation modules positioned between an outer layer and an interior layer of the helmet, optionally with a plurality of perforations or openings in an outer shell of the helmet. The plurality of impact mitigation assemblies may comprise an impact absorbing array of impact mitigation structures having at least one filament and a lateral support wall or connecting element. When force is applied to the exterior surface, the structures of the impact absorbing materials deform in a desired and controlled manner, reducing the force received by the interior layer.