Abstract: An eyewear device includes: a frame having a locking feature; a first arm having a frame end and a distal end; and a second arm having a frame end and a distal end. The first arm has a first hinge at the frame end attaching the first arm to the frame and a second hinge between the frame end and the distal end. The second arm has a first hinge at the frame end attaching the second arm to the frame and a second hinge between the frame end and the distal end. In a closed configuration of the eyewear device, the second hinges of the first and second arms are releasably locked to the locking feature of the frame. The first hinges of the first and second arms are elastic to move the first and second arms between open and closed positions.

Abstract: Apparatus comprising at least one movable reflective surface configured to reflect electromagnetic waves and at least one actuator coupled with the at least one movable reflective surface, wherein said at least one actuator is configured to at least temporarily drive a movement of said at least one reflective surface.

Abstract: An eyewear device and a method of folding an eyewear device includes: a frame including one or more lenses or displays; first and second arms, wherein the first arm is foldable with respect to the frame to at least partially cover a first side of the frame, and the second arm is foldable with respect to the frame to at least partially cover a second side of the frame, such that the first and second arms, in folded positions, at least partially surround the frame. The method includes: folding the first arm with respect to the frame to at least partially cover the first side of the frame; and folding the second arm with respect to the frame to at least partially cover the second side of the frame, such that the first and second arms, in the folded positions, partially surround the frame.

Abstract: An eyewear device, a frame, an arm, a storage unit, and a method of using an eyewear device is described, the eyewear device including: one or more detachable arms; and a frame including one or more lenses or displays and one or more hinges, wherein at least one of the one or more hinges include one or more magnetic elements suitable for attaching said one or more detachable arms to the frame, and wherein the one or more hinges are retractable, such that said one or more hinges are configured to retract into a cavity within said frame when said one or more detachable arms are detached from the respective hinge.

Abstract: An eyewear device and a method performed at an eyewear device is described, the eyewear device comprising: a frame comprising one or more elements configured, in use, to be in physical contact with at least one body part of a user or wearer of the eyewear device; one or more arms; and one or more microphones, wherein the one or more microphones are configured to detect pressure waves generated at the one or more elements. The method comprises: receiving one or more signals indicative of internal body sounds from the one or more microphones, wherein the one or more microphones are configured to detect pressure waves transmitted by the one or more elements; and processing said signals.

Abstract: A system for providing haptic feedback to a user, the system comprising a first piezoelectric transducer array comprising multiple piezoelectric transducers, respective ones of which being configured to generate a second signal at a second frequency, and at least one of which being configured to generate a first signal at a first frequency, and a second piezoelectric transducer array comprising multiple piezoelectric transducers, respective ones of which configured to receive the second signal, and at least one of which configured to generate a third signal to initiate generation of the first signal at the said at least one piezoelectric transducer of the first piezoelectric transducer array, the first frequency suitable for providing a haptic feedback signal for a user.

Abstract: An apparatus includes a flexible substrate; at least one sensor mounted on the flexible substrate arranged to provide an electrical output signal dependent upon a first parameter; and at least one conductive trace provided on the flexible substrate arranged to provide a direct current path to the at least one sensor and having an electrical property dependent upon a second parameter and arranged to provide an electrical output signal indicative of the second parameter.

Abstract: A system for providing haptic feedback to a user, the system comprising a first piezoelectric transducer array comprising multiple piezoelectric transducers, respective ones of which being configured to generate a second signal at a second frequency, and at least one of which being configured to generate a first signal at a first frequency, and a second piezoelectric transducer array comprising multiple piezoelectric transducers, respective ones of which configured to receive the second signal, and at least one of which configured to generate a third signal to initiate generation of the first signal at the said at least one piezoelectric transducer of the first piezoelectric transducer array, the first frequency suitable for providing a haptic feedback signal for a user.

Abstract: A strain sensor comprising: a stretchable substrate comprising a plurality of layers; non-stretchable magnetic material fastened to at least one of the plurality of layers; and at least one coil of conductive thread wound through the substrate to mechanically interconnect the plurality of layers, wherein at least a portion of the at least one coil of conductive thread is located around at least a portion of the non-stretchable magnetic material.

Abstract: An apparatus for sensing radiation is provided. Certain examples provide an apparatus including: a first layer including a sensor, wherein the sensor is configured to be responsive to changes in an electric field in the vicinity of the sensor; a second layer including a substrate configured to produce charge carriers in response to incident radiation; and a third layer including a plurality of electrodes, wherein the plurality of electrodes are configured to be selectively addressed during a readout operation of the sensor. Certain examples, relate to an apparatus for sensing X-rays or sensing neutrons including a graphene field effect transistor.

Abstract: Apparatus comprising at least one movable reflective surface configured to reflect electromagnetic waves and at least one actuator coupled with the at least one movable reflective surface, wherein said at least one actuator is configured to at least temporarily drive a movement of said at least one reflective surface.

Abstract: An apparatus and wearable device comprising an apparatus wherein the wearable device comprises: an actuator arranged to move in a first direction and a second direction in response to an electrical input signal; at least one member, coupled to the actuator and arranged to extend towards the second direction; and wherein the actuator is arranged relative to the at least one member so that displacement of the at least one member caused by movement of the actuator in the first direction is restricted and displacement of the at least one member caused by movement of the actuator in the second direction provides a tactile output.

Abstract: Apparatus comprising at least one reflective surface configured to reflect electromagnetic waves, wherein a reflective response of at least one portion of said reflective surface with respect to said electromagnetic waves is electronically controllable, wherein said apparatus is configured to at least temporarily control said reflective response of said at least one portion of said reflective surface.

Abstract: An apparatus comprising: a flexible substrate; at least one sensor mounted on the flexible substrate arranged to provide an electrical output signal dependent upon a first parameter; and at least one conductive trace provided on the flexible substrate arranged to provide a direct current path to the at least one sensor and having an electrical property dependent upon a second parameter and arranged to provide an electrical output signal indicative of the second parameter.

Abstract: A method and apparatus, the method comprising: transferring a layer of two dimensional material from a liquid surface onto a layer of woven electronic fabric; wherein the woven electronic fabric comprises a plurality of conductive strands and a plurality of non conductive strands such that the layer of two dimensional material and woven electronic fabric form a sensor.

Abstract: Methods and Computer Programs for Monitoring a User's Pulse An apparatus, method and computer program, the apparatus comprising; a pulse monitoring module; the pulse monitoring module comprising detecting means for detecting a user's pulse and feedback means for providing haptic feedback to the user indicative of the detected pulse; and controlling circuitry arranged to control the pulse monitoring module so that during a first time period the detecting means is arranged to detect a user's pulse and during a second time period the feedback means is arranged to provide haptic feedback indicative of the detected pulse.

Abstract: An apparatus including a scintillator arrangement including a plurality of optically isolated scintillators that extend lengthwise along a plurality of respective parallel axes and define respective scintillation channels, wherein each of the optically isolated scintillators extends lengthwise between an input interface and an output interface and is arranged to receive higher energy photons at the input interface, to convert high energy photons to lower energy photons, and to output lower energy photons from the output interface in a respective scintillation channel, wherein the optical isolation reduces transmission of lower energy photons between scintillation channels.

Abstract: An apparatus comprises a first magnetic plate; a second magnetic plate oriented parallel no the first magnetic plate, magnetically coupled to the first magnetic plate, and slidable relative to the first magnetic plate; a dielectric material positioned between the first magnetic plate and the second magnetic plate; and a contact in communication with the first magnetic plate and the second magnetic plate through which a voltage is applied, the voltage generating a signal that is responsive to a task performed on a mobile device, the signal providing a haptic effect to the first magnetic plate and the second magnetic plate upon sliding of the first magnetic plate relative to the second magnetic plate.

Abstract: An apparatus and method, the apparatus comprising: a plurality of layers of scintillator material configured to generate photons in response to incident radiation; and a plurality of layers of spacer material wherein the scintillator material and spacer material are arranged in alternate layers so that a plurality of interfaces are provided between layers of scintillator material and layers of spacer material; wherein the scintillator material has a different refractive index to the spacer material and the thickness of layers within the plurality of layers is arranged to enable constructive interference of photons emitted by the scintillator material and reflected by the interfaces.

Abstract: An apparatus including a proton battery configured to generate protons in the presence of water to produce a potential difference; and a first pair of electrical contacts electrically connected to the proton battery to enable a flow of electrical current therebetween when the potential difference from the proton battery is applied across the first pair of electrical contacts, wherein the apparatus is configured such that when the apparatus is attached to the skin of a user, the proton battery is exposed to water from the user's skin which produces the potential difference and enables a flow of electrical current through the user's skin via the first pair of electrical contacts.