Abstract: Systems of the present disclosure can provide a wearable electronic device with attachable and exchangeable bands that provide a variety of different components and functions to achieve the results that are desired by a user. A selection of a certain band can influence operation of the wearable electronic device in a variety of ways. For example, the wearable electronic device can respond to the identification of a particular band by performing particular functions, such as changing an aspect of a user interface or altering settings of the wearable electronic device. Such functions can be readily executed by the wearable electronic device upon identification of the band, such that user input is not required. Accordingly, a user's experience with the wearable electronic device can be enhanced based on the user's selection of a particular band.

Abstract: An electronic device is provided that includes a heatsink, an electrical circuit mounted on the heatsink, and a chassis. A plurality of heat-insulating connectors mounting the heatsink to the chassis at a first plurality of mount points, and a plurality of heat-conducting connectors mounting the heatsink to the chassis at a second plurality of mount points. The first plurality of mount points are located closer to the electrical circuit mounted on the heatsink than the second plurality of mount points.

Abstract: A wearable electronic device can interact with a charging case to maintain appropriate power-consumption states while readily transitioning to other states in anticipation of user operation. As the wearable electronic device is accessed from the case, the wearable electronic device can transition to an active state earlier than if the wearable electronic device were to detect the user before transitioning to the active state. In the active state, the wearable electronic device can perform one or more of a variety of actions that are not performed in the sleep state or the off state. For example, by initiating a transition to an active state before the user dons the wearable electronic device, the displays can be ready to output the view earlier so that the user does not spend any or a substantial amount of time being unable to see or waiting for the displays to become active.

Abstract: A head-mounted device may have optical modules that present images to a user's eyes. Each optical module may have a lens barrel with a display and a lens that presents an image from the display to a corresponding eye box. To accommodate users with different interpupillary distances, the optical modules may be slidably coupled to guide members such as guide rods. Actuators may slide the optical modules towards or away from each other along the guide rods. The guide rods may be formed from fiber-composite tubes with end caps that are fastened to a frame in the head-mounted device. The tubes may be partly or completely filled with cores to add strength. Low-friction coatings such as metal coatings may be formed on the fiber-composite tubes and the corresponding inner surfaces of the optical module structures that slidably engage the fiber-composite tubes.

Abstract: A head-mounted device may have a head-mounted housing. The housing may include a frame with left and right openings that receive respective left and right optical modules that present images to a user's eyes. Each optical module may have a lens and display that presents an image through the lens. Camera support members may be coupled to respective left and right peripheral portions of the frame. Each camera support member may have openings configured to receive cameras. Antennas may be formed on a camera support member. The antennas may have metal traces on a surface of the camera support member, may have conductive structures embedded within the camera support member, and/or may have patterned metal traces on printed circuits attached to or embedded in the camera support member. The cameras may operate through portions of a display cover layer that covers an outwardly-facing display on the head-mounted housing.

Abstract: A controller may be provided for use with electronic equipment. The electronic equipment may include a head-mounted device that uses user input to control displayed images, a computer stylus or other accessory, a handheld device such as a remote control, and/or other electronic devices. The controller may have a nub-shaped housing. The housing may be formed from a flexible housing wall that has an elongated dome shape extending along an axis. User finger input may be provided to the controller during operation. Sensor circuitry in the flexible housing may be used in detecting user finger input such as multitouch touch input, force input in which a user's finger presses against the flexible housing, and deformation input in which the flexible housing is bent away from the axis or otherwise deformed by a user's finger.

Abstract: A head-mounted device may have a head-mounted housing. The housing may include a frame with left and right openings that receive respective left and right optical modules that present images to a user's eyes. Each optical module may have a lens and display that presents an image through the lens. Camera support members may be coupled to respective left and right peripheral portions of the frame. Each camera support member may have openings configured to receive cameras. Antennas may be formed on a camera support member. The antennas may have metal traces on a surface of the camera support member, may have conductive structures embedded within the camera support member, and/or may have patterned metal traces on printed circuits attached to or embedded in the camera support member. The cameras may operate through portions of a display cover layer that covers an outwardly-facing display on the head-mounted housing.

Abstract: A head-mountable device can include an ability to adjust a fit as needed for a particular user or activity. For example, a light seal module that provides engagement of a user's face and transmits light from a display element can be coupled to an HMD module. The light seal module can be provided in a wide variety of adjustable sizes and/or shapes to allow any given user to select an appropriate one for optimal alignment of an HMD module. The head-mountable device and/or other electronic devices can be operated to guide a user to select the optimal light seal module arrangement for use with an HMD module. For example, the head-mountable device or another device can include sensors for detecting an identity of a user, features of the user's face, forces distributed on the face when worn, and/or an activity being performed.

Abstract: A head-mounted device may have a head-mounted housing. Optical components may be supported by the head-mounted housing. The optical components may include cameras such as front-facing cameras and/or movable optical modules that have displays for displaying images to eye boxes. Sensors may be provided in the head-mounted device to detect changes in orientation between respective optical modules, between respective portions of a chassis, display cover layer, or other head-mounted support structure in the housing, between optical components such as cameras, and/or between optical components and housing structures. Information from these sensors can be used to measure image misalignment such as image misalignment associated with misaligned cameras or misalignment between optical module images and corresponding eye boxes.

Abstract: A wearable device includes a housing and a display carried by the housing, a capacitive sensor carried by the housing and including a movable outer surface. The capacitive sensor can include a first set of conductors forming a first electrical path, a second set of conductors forming a second electrical path, and a set of non-conductive insulators isolating the first set of conductors from the second set of conductors. A processor can also be carried by the housing and can be in communication with the display and the capacitive sensor.

Abstract: A head-mounted device may have a head-mounted housing. Optical components may be supported by the head-mounted housing. The optical components may include cameras such as front-facing cameras and/or movable optical modules that have displays for displaying images to eye boxes. Sensors may be provided in the head-mounted device to detect changes in orientation between respective optical modules, between respective portions of a chassis, display cover layer, or other head-mounted support structure in the housing, between optical components such as cameras, and/or between optical components and housing structures. Information from these sensors can be used to measure image misalignment such as image misalignment associated with misaligned cameras or misalignment between optical module images and corresponding eye boxes.

Abstract: A case can facilitate operation with a portable electronic device and a battery device that can be connected to another, external device. To minimize the number of separate devices carried by a user, a battery device can be held within the case that also holds the portable electronic device. The case can hold the portable electronic device continually and receive the battery device when the user wants to group the devices together. The battery pack can provide charging power to the external device (e.g., wearable device) while held within the case. The case can provide engagement with the battery device to retain it and/or a communication link to communicate with it.

Abstract: A system may include a head-mounted device. The head-mounted device may have a head-mounted housing that includes a display. The display is configured to display an image for viewing by a user when the user's eyes are located in eye boxes adjacent to the head-mounted housing. The head-mounted housing may have a compressible opaque light seal. The light seal may have a ring shape and may block stray ambient light around the periphery of the head-mounted housing, thereby ensuring that stray light does not interfere with viewing of the image by the user. Sensors may be provided in the light seal to measure facial expressions and gather other measurements. Information on a measured facial expression of a user can be transmitted to external devices so that the external devices can update corresponding facial expressions on an avatar to reflect the user's current facial expression.

Abstract: A head-mounted device may have optical modules that present images to a user's eyes. Each optical module may have a lens barrel with a display and a lens that presents an image from the display to a corresponding eye box. To accommodate users with different interpupillary distances, the optical modules may be slidably coupled to guide members such as guide rods. Actuators may slide the optical modules towards or away from each other along the guide rods. The guide rods may be formed from fiber-composite tubes with end caps that are fastened to a frame in the head-mounted device. The tubes may be partly or completely filled with cores to add strength. Low-friction coatings such as metal coatings may be formed on the fiber-composite tubes and the corresponding inner surfaces of the optical module structures that slidably engage the fiber-composite tubes.

Abstract: A system may include a head-mounted device. The head-mounted device may have a head-mounted housing that includes a display. The display is configured to display an image for viewing by a user when the user's eyes are located in eye boxes adjacent to the head-mounted housing. The head-mounted housing may have a compressible opaque light seal. The light seal may have a ring shape and may block stray ambient light around the periphery of the head-mounted housing, thereby ensuring that stray light does not interfere with viewing of the image by the user. Sensors may be provided in the light seal to measure facial expressions and gather other measurements. Information on a measured facial expression of a user can be transmitted to external devices so that the external devices can update corresponding facial expressions on an avatar to reflect the user's current facial expression.

Abstract: A wearable device includes a housing and a display carried by the housing, a capacitive sensor carried by the housing and including a movable outer surface. The capacitive sensor can include a first set of conductors forming a first electrical path, a second set of conductors forming a second electrical path, and a set of non-conductive insulators isolating the first set of conductors from the second set of conductors. A processor can also be carried by the housing and can be in communication with the display and the capacitive sensor.

Abstract: A head-mountable device can include a crown module that receives input from a user and provides localized haptic feedback to the user. A magnetic element coupled to a crown can be moved by inducing magnetic fields, and the position and/or movement of the magnetic element can be detected to provide closed-loop control of the induced magnetic fields. The haptic feedback can be effectively perceived by the user at the crown without causing the entire head-mountable device to vibrate against the head and/or face of the user.

Abstract: A head-mounted device may have optical modules that present images to a user's eyes. Each optical module may have a lens barrel with a display and a lens that presents an image from the display to a corresponding eye box. To accommodate users with different interpupillary distances, the optical modules may be slidably coupled to guide members such as guide rods. Actuators may slide the optical modules towards or away from each other along the guide rods. The guide rods may be formed from fiber-composite tubes with end caps that are fastened to a frame in the head-mounted device. The tubes may be partly or completely filled with cores to add strength. Low-friction coatings such as metal coatings may be formed on the fiber-composite tubes and the corresponding inner surfaces of the optical module structures that slidably engage the fiber-composite tubes.

Abstract: A head-mountable device can effectively manage heat with a motor assembly that efficiently and accurately senses a temperature of a motor. A temperature sensor can be provided on an outer surface (e.g., case) of the motor. A flex circuit can be operably connect both the motor and the temperature sensor to a controller of the head-mountable device. The flex circuit can have a first side coupled to the outer surface of the case, a second side supporting the temperature sensor, and thermally conductive vias extending from the first side to the second side to conduct heat from the case to the sensor. The flex circuit can further include a memory comprising calibration data of the temperature sensor and a connector for outputting temperature data based on the temperature sensor and the calibration data of the memory.

Abstract: A connector includes a housing and a release button. The housing defines a recess for receiving a latch member of a receptacle. The release button is operable to cause displacement of the latch member from the recess and has a surface that aligns with a surface portion of the housing when disconnected from the receptacle. The surface of the release button protrudes from the surface portion of the housing when the connector is connected to the receptacle to provide a visual indication that the connector is connected to the receptacle.